Best Mini Gaming PC Under $300 (2026): Radeon 780M, 760M, Vega 8 and Iris Xe Ranked

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The best mini gaming PC under $300 is not a complete computer — it is a barebone, meaning a chassis, board, cooler and APU with no RAM, no SSD and no operating system — and that single fact settles most of what you can expect from the bracket, which is why the honest starting point is whether a mini PC belongs in a gaming setup at all.

Below the ceiling, the real constraint is graphics silicon, not CPU marketing. Radeon 780M is the top of what is genuinely purchasable here, Radeon 760M sits one tier behind it, and Vega 8 and Intel Iris Xe remain useful for esports, older AAA titles, indie games and emulation without ever being credible modern-AAA machines. Intel N5095, N95, N100 and N150 boxes appear in the same price neighbourhood and get labelled gaming PCs; their UHD graphics are a tier below even Vega 8, and their Quick Sync media engine is built for transcoding, not rendering.

This roundup ranks seven systems by GPU architecture first and by everything else second: exact SKU identity, memory topology, storage slots, eGPU path, thermals and support terms. Two of them reach Radeon 780M. One of them is the only system here that keeps both M.2 slots free while offering a desktop-GPU upgrade path.

It is written for the buyer who already has a spare pair of DDR5 or DDR4 SO-DIMMs and an NVMe drive, or who is willing to run Linux and skip the Windows licence, or who intends to build the machine up over two paydays. If you need a sealed, ready-to-play $300 gaming PC out of the box, the honest answer is that this bracket does not contain one.

Quick Picks

What Makes a Great Mini Gaming PC Under $300

Graphics architecture sets the ceiling, and nothing else gets close. Radeon 780M carries 12 RDNA 3 compute units; Radeon 760M carries 8 of the same generation; Vega 8 carries 8 units on a much older design. That gap shows up as roughly 118 FPS versus roughly 105 FPS in Counter-Strike 2 at 1080p low, and as a far steeper cliff in demanding titles, where the older Vega 8 reference collapses to about 17 FPS in the same class of test.

Matched dual-channel memory is a requirement, not an upgrade. Every iGPU here uses system RAM as its frame buffer, and a lone SO-DIMM cuts the bandwidth available to the graphics core in half. Buy two matched modules — 2 × 16 GB in DDR5-5600 is the sensible floor for a 780M or 760M machine — and verify dual-channel operation after installation rather than assuming the slot count guarantees it.

Barebone pricing is not system pricing. A barebone needs memory, an NVMe SSD and an operating system on top of the chassis, and configured listings that carry the same family name routinely cost far more than the barebone version that qualifies for this bracket. Normalise every comparison to the same memory, storage and licence load before deciding, and read what a mini PC actually costs once it is complete before you commit to a budget.

M.2 is a form factor, not a protocol. A slot can be NVMe over PCIe, SATA-only, or both depending on the board, and the length matters too — 2280 is roughly 22 × 80 mm, 2242 is roughly 22 × 42 mm. Check the protocol and the length of every slot you intend to populate.

An eGPU path changes how long the machine stays useful. OCuLink is a direct external PCIe link, typically PCIe 4.0 ×4 on these systems, with far less protocol overhead than the 40 Gbps-class USB4 route. Improvised M.2-to-eGPU adapters work but consume a storage slot, which is exactly what makes the AOOSTAR's dedicated OCuLink connector unusual at this level.

Room noise is a chassis and firmware question as much as a silicon question. A 65 W APU can run quietly in a well-designed enclosure and badly in a mediocre one, and a lazy stock fan curve can drive package temperatures toward 90 °C in a machine whose APU is entirely within spec.

#1 AOOSTAR MACO R7 Pro 8845HS — Best Overall

Specs

• APU: AMD Ryzen 7 PRO 8845HS — Zen 4, 8 cores / 16 threads, 3.8 GHz base, up to 5.1 GHz boost
• iGPU: Radeon 780M, 12 RDNA 3 compute units
• Power: 35–54 W nominal APU envelope, configurable to roughly 65 W
• Memory: 2 × DDR5-5600 SO-DIMM, up to 128 GB
• Storage: 2 × M.2 2280 PCIe 4.0 ×4 NVMe
• Expansion: dedicated OCuLink connector plus 2 × USB4
• Displays: HDMI 2.1, DisplayPort 1.4, two USB4 outputs — up to four displays
• Networking: dual Intel I226-V 2.5GbE, Wi-Fi 6, Bluetooth 5.2
• Power supply: 120 W; aluminium upper chassis with a plastic underside
• Barebone: no RAM, no SSD, no operating system; 12-month warranty, 30-day return policy

Positioning: top of the bracket.

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The MACO is the only system here that combines the strongest iGPU in the bracket with an expansion topology that does not force a compromise. Radeon 780M reference figures put Counter-Strike 2 at roughly 118.6 FPS on the 1080p low preset, 81.8 FPS at medium, 48.2 at high and 30 at ultra; Rainbow Six Extraction lands around 65 FPS at 1080p very low and 48 FPS at medium, and F1 22 reaches roughly 78 FPS low and 68 FPS medium. Cyberpunk 2077 sits at about 39 FPS on 1080p low and 30 FPS at medium, and drops below 30 as you climb the presets — low settings, FSR or a 720p output are the realistic path for recent releases.

Emulation headroom is comfortable above what PS2, GameCube and Wii require, and strong enough for Wii U in most titles. Switch performance remains emulator- and game-dependent and should not be treated as a target.

What separates this chassis is that OCuLink and both USB4 ports coexist with both M.2 slots. A desktop GPU added later over OCuLink gets a direct PCIe 4.0 ×4 link without evicting a drive, which is a different ownership proposition from an M.2 adapter hack. Sustained high-power operation is reported without obvious throttling, though the fan is clearly audible at full load — that is the trade the chassis makes.

Pros

• Radeon 780M, the fastest iGPU available in this bracket
• Dedicated OCuLink plus dual USB4, with both NVMe slots left free
• Dual Intel I226-V 2.5GbE, which suits a virtualised firewall on the same box
• Up to 128 GB of replaceable DDR5-5600

Cons

• 12-month warranty and a 30-day return window — the shortest cover on this list
• A smaller support operation than MINISFORUM or GMKtec
• Audible fan under sustained load
• Sold as a late-batch SKU, so long-term spare-part availability is a real consideration

Verdict: the best all-round pick if you want maximum frame rates now and a desktop-GPU path later, and you accept the shorter warranty.

Perfect for: the buyer who intends to add an eGPU within a year and wants a dual-NIC machine underneath it.

#2 MINISFORUM UM870 Slim — The Best-Documented Cooling

Specs

• APU: AMD Ryzen 7 8745H — Zen 4, 8 cores / 16 threads, 3.8 GHz base, up to 4.9 GHz boost
• iGPU: Radeon 780M, 12 RDNA 3 compute units
• Cooling: advertised 65 W sustained, phase-change thermal material, three heatpipes, active airflow across RAM and SSD
• Memory: 2 × DDR5-5600 SO-DIMM, up to 96 GB
• Storage: 2 × M.2 2280 PCIe 4.0 ×4 NVMe
• Displays: HDMI 2.1 FRL up to 8K60 / 4K120, DisplayPort 1.4, USB4 with DisplayPort
• Ports: USB4 Type-C, 2 × USB 3.2 Gen 2 Type-A, 2 × USB 2.0
• Networking: 2.5GbE, Wi-Fi 6E, Bluetooth
• Dimensions: 130 × 126.5 × 50.4 mm, about 0.67 kg; 120 W power supply
• Barebone: no RAM, no SSD, no operating system

Positioning: top of the bracket.

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The UM870 Slim is the only system in this roundup whose gaming performance has been measured on the exact chassis rather than on the GPU family. At 720p minimum settings it recorded around 153 FPS in Forza Horizon 5, with 41 FPS at the extreme preset, and Shadow of the Tomb Raider ranged from 114 FPS down to 61 FPS across the same resolution. At 1920 × 1080 with FSR enabled and low settings it managed roughly 55.6 FPS in Cyberpunk 2077 and 66 FPS in Black Myth: Wukong — numbers that show how much upscaling changes the verdict, because native-resolution results land well below them.

Cooling is the argument for this machine over the MACO. Measured from 40 cm, it recorded about 34.1 dBA at idle and 38.2 dBA under load, with CPU peaks between 81 °C and 88 °C depending on the stress workload, and a fan described as audible but restrained. Configuration matters as much here as anywhere: memory setup and BIOS state have been shown to produce very large frame-rate swings on this exact model, which is the practical case for a matched 2 × 16 GB DDR5-5600 kit rather than a single module.

There is no OCuLink connector, so USB4 is the external-GPU route. That is still a functional upgrade path — many USB4 and Thunderbolt graphics enclosures exist — but it carries more protocol overhead than a direct PCIe 4.0 ×4 link.

Pros

• Exact-model gaming and acoustic data, not just GPU-family data
• Sustained 65 W cooling with active RAM and SSD airflow
• Measured 38.2 dBA under load, 81–88 °C package peaks
• Two-year seller warranty has historically applied to this product family

Cons

• No OCuLink; external GPUs go over USB4
• 96 GB memory ceiling rather than 128 GB
• Single 2.5GbE port, so a firewall role needs a managed switch and VLANs

Verdict: the safest pick for a first iGPU gaming build, because its thermal behaviour is the best characterised of the seven.

Perfect for: buyers who want predictable sustained performance and quiet operation more than a future desktop-GPU link.

#3 GMKtec NucBox M6 Ultra — Strongest Esports Value

Specs

• APU: AMD Ryzen 5 7640HS — Zen 4, 6 cores / 12 threads, 4.3 GHz base, up to 5.0 GHz boost
• iGPU: Radeon 760M, 8 RDNA 3 compute units, up to 2.6 GHz
• Power modes: 35 W / 45 W / 50 W
• Memory: 2 × DDR5 SO-DIMM, up to 128 GB
• Storage: 2 × M.2 2280 slots
• Displays: HDMI, DisplayPort 1.4, full-function USB4 — triple-display support
• Networking: dual 2.5GbE, Wi-Fi 6E, Bluetooth 5.2
• Dimensions: 128.8 × 127 × 47.8 mm, 528 g; 120 W power supply
• Barebone: no RAM, no SSD, no operating system; 12-month warranty, 7-day return window

Positioning: top of the bracket.

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Radeon 760M is one tier below 780M, and the numbers make the boundary explicit. Counter-Strike 2 averages roughly 104.9 FPS on the 1080p low preset, 77.4 at medium, 39.4 at high and 26.2 at ultra — so competitive shooters at 1080p low are entirely realistic, and anything above medium starts costing frames quickly. F1 23 reaches about 71.6 FPS low, 63.6 medium and 45.5 high, and The Finals lands near 54.2 FPS low and 38.8 medium.

The demanding tier is where the gap widens. Cyberpunk 2077 sits around 31 FPS low and 24 FPS medium, Baldur's Gate 3 around 30 and 24, Starfield falls to roughly 14.3 FPS on low and Jedi Survivor to about 8 FPS. Those are games that simply do not work on a 760M without aggressive resolution and upscaling compromises, and no amount of RAM will change that.

Fan behaviour deserves a mention before purchase. Owner reports through the current year include a failed or noisy system fan followed by PWM problems on a replacement, and a second report of the CPU reaching 91 °C on an overly passive stock fan curve. Those are anecdotes rather than a measured failure rate, but firmware and fan control are worth validating during the return window rather than a year later.

Pros

• Best esports frame rates per dollar in this bracket
• Dual 2.5GbE and USB4 at a lower spend than either 780M machine
• Two M.2 2280 slots and up to 128 GB of replaceable DDR5
• Selective 35 / 45 / 50 W power modes for noise control

Cons

• Radeon 760M is a clear tier behind 780M on demanding titles
• No OCuLink
• Multiple fan-control and EC reports worth monitoring
• Seven-day return window

Verdict: buy it for competitive shooters, MOBAs and older AAA at 1080p; do not buy it expecting Starfield.

Perfect for: esports-first players who will never run an RTX-class title on the iGPU.

#4 GMKtec M2 Pro S — Best Intel Option

Specs

• CPU: Intel Core i7-1185G7 — Tiger Lake, 4 cores / 8 threads, up to 4.8 GHz
• iGPU: Iris Xe Graphics G7, 96 execution units, up to 1.35 GHz
• Power: 12–28 W nominal cTDP; chassis profiles advertised around 28 W / 35 W / 40 W package limits
• Memory: 2 × DDR4 SO-DIMM, up to 64 GB
• Storage: 2 × M.2 slots, main slot M.2 2280
• Displays: 2 × HDMI 2.0 plus USB-C display output — triple-display support
• Networking: 2.5GbE, Wi-Fi 6, Bluetooth 5.2
• Cooling: dual-turbine copper design
• Barebone: no RAM, no SSD, no operating system; 12-month warranty, 7-day return window

Positioning: top of the bracket.

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Iris Xe with 96 execution units is the strongest Intel graphics in this bracket, and the benchmark picture is lopsided in a specific way. Older titles and esports run well: Dota 2 at 80.7 FPS on 720p minimum, 51.4 FPS at 1366 × 768 medium and 38.2 FPS at 1080p high; GTA V at 64.6 FPS on 1366 × 768 normal but only 20.5 FPS at 1080p high; The Witcher 3 at 61.9 FPS on 1366 × 768 medium and 34.5 FPS at 1080p high. Demanding titles fall apart: Final Fantasy XV reaches 31.3 FPS on the 720p Lite preset and 18.8 FPS at 1080p Standard.

Two practical points stand out. First, Iris Xe results are unusually sensitive to driver version, memory configuration and per-title optimisation, so the chassis results above are best treated as a range rather than a fixed expectation. Second, the i7-1185G7 platform supports Thunderbolt at the silicon level, but this machine exposes no verified USB4 or Thunderbolt port — do not infer an external-GPU path from the processor specification. That omission is what keeps it below the Radeon 760M and 780M systems for pure gaming money.

Where the M2 Pro S earns its place is the Intel ecosystem: Quick Sync hardware transcoding for a media server, mature Linux and Windows driver coverage for a 4-core Tiger Lake platform, and a copper dual-turbine cooler for a 28–40 W package. If the machine is a gaming box first and a Plex or Jellyfin server second, an AMD machine is the better buy.

Pros

• The best Intel iGPU available in the bracket
• Quick Sync hardware transcoding alongside gaming
• Dual-turbine copper cooling for a modest power envelope
• Two M.2 slots and 64 GB DDR4 support

Cons

• No verified USB4 or Thunderbolt port despite the platform's silicon capability
• Weak on demanding AAA titles
• 64 GB DDR4 ceiling and no RDNA 3-class graphics
• Same chassis spend as a 760M machine on a gaming-first budget

Verdict: a rational choice only if Intel-specific software or Quick Sync media work matters alongside the gaming.

Perfect for: the buyer building one box that games lightly and transcodes heavily.

#5 GMKtec M5 Plus — Cheaper Vega Alternative

Specs

• APU: AMD Ryzen 7 5825U — Zen 3, 8 cores / 16 threads, 2.0 GHz base, up to 4.5 GHz boost
• iGPU: Radeon Vega 8, 8 compute units, up to 2.0 GHz
• Power range: 10–35 W
• Memory: dual DDR4-3200 SO-DIMM, up to 64 GB
• Storage: M.2 NVMe
• Displays: HDMI, DisplayPort, USB-C — triple-display support
• Networking: dual Realtek 2.5GbE, Wi-Fi 6-class adapter, Bluetooth 5.2
• Barebone: no RAM, no SSD, no operating system; 12-month warranty, 7-day return window
• External GPU: not supported on the USB-C interface

Positioning: mid bracket.

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The 5825U has a genuinely useful 8-core Zen 3 CPU, and Vega 8 at up to 2.0 GHz is the fastest version of that old graphics design on this list. It is still a Vega-class GPU: Counter-Strike 2 averages about 62.8 FPS on 1080p low and 43.4 FPS at medium, then collapses to roughly 22 FPS at high and 16 FPS at ultra. Cyberpunk 2077 records about 35.9 FPS in the 1280 × 720 low test, and then roughly 15.5 FPS at 1080p medium, 11.3 at high and 9.5 at ultra.

Treat it as a Valorant, Minecraft, Rocket League, older-AAA and emulation machine — PS2, GameCube and Wii are sensible targets, Wii U can be viable, and Switch should never be assumed. There is no USB4, no Thunderbolt and no OCuLink: GMKtec states external GPU support is unavailable on the USB-C port, so M.2 adapters are enthusiast hacks that cost you internal expansion.

Long-term owner data exists in greater volume for this platform than for the newer models, and it cuts both ways: there are reports of power adapters failing around or shortly after the one-year warranty mark with inconsistent support outcomes, plus isolated reports of high SSD temperatures, fan noise and late-life instability. Those are support-risk signals rather than a measured failure rate, but they argue for buying it only when it is meaningfully cheaper than a 760M machine.

Pros

• Fastest Vega 8 implementation here
• Strong 8-core Zen 3 CPU for non-gaming workloads
• Dual 2.5GbE
• DDR4 memory is cheaper to populate than DDR5

Cons

• Vega-class graphics, a long way behind RDNA 3
• No eGPU path at all
• Adapter and support reports worth weighing
• Only makes sense at a clear price gap below the 760M systems

Verdict: a good server-that-games machine; a mediocre gaming machine.

Perfect for: buyers with spare DDR4 SO-DIMMs who play esports and older titles.

#6 GMKtec G10 — Cheapest Credible Local Gaming Box

Specs

• APU: advertised AMD Ryzen 5 3500U — 4 cores / 8 threads, up to 3.7 GHz
• iGPU: Radeon Vega 8, 8 compute units, up to 1.2 GHz
• Power: advertised 25 W, up to 35 W
• Memory: 2 × DDR4-2400 SO-DIMM, up to 64 GB
• Storage: 2 × M.2 2280 PCIe 3.0 ×4, up to 16 TB combined
• Displays: HDMI 2.1, DisplayPort 1.4, USB-C — triple-display support
• Networking: single 2.5GbE, Wi-Fi 5, Bluetooth 5.0
• USB-C: USB 3.2 Gen 1 with DisplayPort and Power Delivery; no USB4 or Thunderbolt
• Dimensions: 103 × 98 × 42 mm
• Barebone: no RAM, no SSD, no operating system; 12-month warranty, 7-day return window

Positioning: entry bracket.

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This is the cheapest system here that still counts as a local gaming machine rather than a media box. Exact-model testing records League of Legends above 80 FPS at 1080p high and Valorant around 60 FPS at medium — reviewer results rather than lab-normalised figures, but consistent with the architecture. Rocket League, Minecraft and Dota 2 are all realistic at reduced settings, and retro through PS2, GameCube and PSP emulation is well within reach.

The older Vega 8 generation inside this machine is dramatically weaker than modern RDNA 3 parts: the Vega 8 2000/3000-series reference records only about 16.8 FPS in the Cyberpunk low test. Modern AAA at 30+ FPS is not a claim this hardware supports.

One hardware-identity caveat belongs in the buying decision rather than a footnote. At least one current owner reports that Windows identifies the installed APU as a Ryzen Embedded R2514 rather than a conventional consumer 3500U, which complicates installing standard Adrenalin drivers after a clean Windows installation. That may be batch-specific, but plan for a model-specific driver package instead of assuming the consumer path works.

Pros

• Lowest spend that still delivers a real GPU
• Two PCIe 3.0 ×4 M.2 slots with up to 16 TB combined
• HDMI 2.1 and DisplayPort 1.4 for triple-display setups
• Compact 103 × 98 × 42 mm chassis

Cons

• Vega 8 2000/3000-class graphics, the weakest GPU here
• Wi-Fi 5 and Bluetooth 5.0 only, and a single 2.5GbE port
• DDR4-2400 memory limits iGPU bandwidth
• Driver-identity issue reported on some units

Verdict: a price-driven purchase, not an architecture-driven one.

Perfect for: first-time builders who want esports, indie and retro gaming on the smallest budget.

#7 GMKtec G11 Plus — Cheapest on Paper, Verify the Silicon

Specs

• APU: advertised AMD Ryzen 5 3500U — 4 cores / 8 threads, 2.1–3.7 GHz
• iGPU: Radeon Vega 8, 8 compute units, up to 1.2 GHz
• Power modes: 15 W Silent, 20 W Balanced, 25 W Performance, peak up to 35 W
• Cooling: single heatpipe, single fan
• Memory: 2 × DDR4 SO-DIMM, up to 32 GB
• Storage: 2 × M.2 2280, up to 16 TB combined
• Networking: dual 2.5GbE, newer wireless connectivity than the G10
• Barebone: no RAM, no SSD, no operating system; 12-month warranty, 7-day return window

Positioning: entry bracket.

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The G11 Plus should be treated as G10-class performance until the exact installed silicon is confirmed, because the vendor's own product page currently carries both an "Embedded R2514" identity in its active title and a "G11 Plus / Ryzen 5 3500U" specification table, with the collection page listing both variants at the same starting price. That is the highest SKU-mismatch risk in this roundup, and it matters because the R2514-versus-3500U identification issue reported by G10 owners affects driver installation, not just labelling.

Where it earns a place at all is on price: it undercuts the G10 while adding dual 2.5GbE and newer wireless, and Vega 8 still gives substantially more GPU headroom than any N100 or N150 system in the same price neighbourhood. Esports at 720p–1080p on reduced settings, indie titles, and retro through PS2 and GameCube are the realistic targets. Vaporware it is not; a reliably identified product it currently is not either.

Pros

• Lowest-cost route to a real GPU in this bracket
• Dual 2.5GbE, unusual at this price
• 15 / 20 / 25 W modes for heat and noise control
• Two M.2 2280 slots

Cons

• Conflicting CPU identity on the vendor's own page
• 32 GB memory ceiling, the lowest here
• Single heatpipe and single fan for a chassis with power modes up to 35 W
• No USB4, no Thunderbolt, no eGPU path

Verdict: only buy after confirming the installed CPU on the exact checkout configuration.

Perfect for: the tightest budgets, where the buyer is comfortable verifying hardware identity before purchase.

Comparison Table

Frequently Asked Questions

Conclusion

The sub-$300 mini gaming PC bracket is a barebone bracket, and the ranking inside it follows graphics silicon almost mechanically. Radeon 780M tops the list, Radeon 760M is one honest tier behind, and Vega 8 and Iris Xe earn their places on price and emulation rather than on modern-AAA capability. Intel N-series graphics do not earn a place at all.

The AOOSTAR MACO R7 Pro 8845HS takes the top spot because it pairs the fastest iGPU available here with an OCuLink connector that survives alongside both M.2 slots — the only system in this roundup that treats a future desktop GPU as part of the plan rather than a hack. The MINISFORUM UM870 Slim is the pick for buyers who want measured cooling behaviour and a two-year warranty history behind the product family. The GMKtec NucBox M6 Ultra is the value answer for esports, and the GMKtec G10 is the entry point for anyone who simply wants to play something on the smallest budget.

Whichever you choose, three rules decide the outcome: install two matched SO-DIMMs rather than one, confirm the exact CPU and memory generation on the checkout configuration before you pay, and treat barebone pricing as a starting figure rather than a total. If you are still sizing the platform, the same logic applies to choosing the smallest mini PC that fits the job and to getting one running from scratch.

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