AMD · GPU · RDNA 2

AMD Radeon RX 6400 — Benchmarks & Specs

4 GB VRAM

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Bottom line: how fast is the Radeon RX 6400?

At 1080p Medium, the Radeon RX 6400 averages 210 fps in Rainbow Six Siege, per Tom's Hardware. In Geekbench 6 OpenCL it scores 33,586 points, per HardwareDB. Its 4 GB of VRAM is the binding constraint for local inference: by capacity alone it should fit 7B-parameter models at Q4 (estimated from VRAM capacity, not a measured run).

Every measured figure above is a row in the tables below, and each row links out to the review or public benchmark database the number was taken from; the model-size range is an estimate from VRAM capacity. SpecPicks aggregates published measurements; it does not report first-party benchmark runs.

Check what fits in 4 GB: by Q4-class file size, 2 of the 23 open-weight models in the SpecPicks Will-It-Run matrix load entirely into the AMD Radeon RX 6400's 4 GB with 1.5 GB left for an ~8K context, up to Llama 3.2 3B (a 2 GB Q4_K_M file per its Hugging Face listing). Check a model in the Will-It-Run matrix →

The Radeon RX 6400 is a graphics card from the RDNA 2 family from AMD. Key on-paper specs include 4 GB of VRAM. Data on this page draws on 2 linked listings, 13 synthetic benchmark results (top 10 shown), 41 measured game frame-rate results (top 14 shown), compiled from Tom's Hardware, 3DMark, PC Tech Reviews, AlkTech, CGMagazine, CpuTronic, HardwareDB, PassMark, PC Gamer, TechPowerUp; each table row links to its source. Read this page when shopping the Radeon RX 6400, comparing it against other graphics cards in your build, or sizing it for a specific workload (gaming at 1080p/1440p/4K or synthetic benchmark scores).

Gaming Performance (measured FPS)

Average and 1% low frame rates by game, resolution, and quality preset. Bars are scaled against the fastest result on this page.

Measured gaming frame rates for the Radeon RX 6400 by game, resolution, and quality preset. “1% low” is the frame-time floor that determines perceived smoothness. Each row links to its original review or benchmark database.
Game	Resolution	Settings	Avg FPS	1% low	Source
Rainbow Six Siege	1080p	Medium	210 fps	—	Tom's Hardware 2022-04-19
Rainbow Six Siege	1080p	High	180 fps	—	PC Tech Reviews AU 2022-10-14
Rainbow Six Siege	1080p	Ultra	162 fps	—	Tom's Hardware 2022-04-19
Rainbow Six Siege	1080p	Ultra	162 fps	—	PC Tech Reviews 2022-10-14
Counter-Strike 2	1080p	Ultra	133 fps	119 fps	PC Gamer 2022-03
Grand Theft Auto V	1080p	High	84 fps	—	PC Tech Reviews AU 2022-10-14
GTA V	1080p	High	84 fps	—	PC Tech Reviews 2022-10-14
Gears Tactics	1080p	High	82 fps	—	CGMagazine 2022-10-18
Fortnite	1080p	High	80 fps	—	alktech.co 2022-05-23
Fortnite	1080p	High	80 fps	60 fps	AlkTech 2022-05-23
Forza Horizon 4	1080p	Ultra	71 fps	—	alktech.co 2022-05-23
Forza Horizon 4	1080p	Ultra	71 fps	55 fps	AlkTech 2022-05-23
Red Dead Redemption 2	1080p	Ultra	68 fps	52 fps	Tom's Hardware 2022-02-28
Red Dead Redemption 2	1080p	Medium FSR Balanced	63 fps	—	PC Tech Reviews AU 2022-10-14

Synthetic Benchmarks

Higher is better. Bars are scaled within each benchmark family (multi-thread, single-thread, etc.) so you can compare like-with-like at a glance.

Synthetic benchmark scores for the Radeon RX 6400 — higher is better. Each row links to the public database the number was taken from. A benchmark listed more than once is separate published results, shown as published rather than averaged.
Benchmark	Score	Source
Geekbench 6 OpenCL	33,586 points	HardwareDB retrieved 2026-07-11
3DMark Wild Life	25,090 points	3DMark 2022-07
3DMark Solar Bay	15,202 points	3DMark 2023-09-26
3DMark Fire Strike	12,150 pts	Tom's Hardware 2022-02-28
3DMark Fire Strike	9,182 points	3DMark 2022-07
PassMark G3D Mark	7,744 pts	PassMark retrieved 2026-04-20
PassMark G3D Mark	7,743 points	PassMark Software retrieved 2026-06-11
3DMark Time Spy	4,820 pts	TechPowerUp 2022-03-03
3DMark Time Spy	3,876 points	3DMark 2023-06
3DMark Time Spy	3,662 points	CpuTronic retrieved 2026-07-11

Products Featuring the Radeon RX 6400

PowerColor

AMD Radeon RX 6400 ITX Graphics Card with 4GB GDDR6 Memory

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Systems with the Radeon RX 6400

Laptops and desktops that ship with the Radeon RX 6400 — whole systems, listed separately from the part itself.

CyberpowerPC

Gamer Master Gaming PC, AMD Ryzen 5 5500 3.6GHz, Radeon RX 6400 4GB, 16GB DDR4, 500GB PCIe Gen4 SSD, WiFi…

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Full Specifications

VRAM	4 GB

Radeon RX 6400 — Frequently Asked Questions

What is the Radeon RX 6400 best used for?

Radeon RX 6400 is a 4 GB VRAM RDNA 2-family graphics card. 1080p gaming and general productivity are the headline use cases; the benchmark tables on this page place it within its generation.

Where do the Radeon RX 6400 benchmark numbers come from?

Each benchmark row on this page names its source (public benchmark databases such as TechPowerUp, PassMark, Geekbench and Cinebench, and community reports such as r/LocalLLaMA threads) and links to it, so every number can be checked against the original.

Can the Radeon RX 6400 run local LLMs?

Community AI benchmark results for this exact card aren't on file yet. 4 GB VRAM fits 7B-parameter models at Q4. See /ai-rigs for hardware-tier recommendations and comparable GPUs with measured numbers.

Where can I buy the Radeon RX 6400?

Amazon listings for the Radeon RX 6400 are linked at the top of this page and in the Products Featuring the Radeon RX 6400 section. SpecPicks earns a small affiliate commission on qualifying purchases, at no extra cost to the buyer.