RX 6400 4 GB for Blender

Very slow Cycles
Below Blender’s recommended VRAM

RDNA 2.0 GPU with very low recorded Cycles performance. Not recommended as a GPU purchase for Blender rendering; if already owned, check version support and test your own scenes.

Last updated: October 1, 2026

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Blender Cycles score
301
38.4× slower than
VRAM
4 GB
Below Blender’s recommended VRAM
Released
2022
Render support
OpenCL
Power draw (TDP)
53 W
System PSU
350 W

Technical specifications

GPU

  • ArchitectureRDNA 2.0
  • RT cores12
  • Stream processors768
  • Compute units12
  • Ray accelerators12
  • Boost frequency2321 MHz

Memory

  • TypeGDDR6
  • Bandwidth128 GB/s
  • Bus width64-bit

Clocks & manufacturing

  • Boost clock2321 MHz
  • Base clock1923 MHz
  • Process size6 nm
  • GPU chipNavi 24
Power & PSU sources

GPU power ratings

System power supply

GPU power ratings and whole-system PSU recommendations measure different things. Check the exact card and the source’s system assumptions.

RX 6400 4 GB Blender benchmarks

Estimated time to render one benchmark frame · Lower is faster.

Blender score 301

Blender 4.0.0 · HIP · 9 runs

Junkshop
1,727.26s
Monster
93.00s
Classroom
226.11s
Benchmark sceneseconds
About these estimates

Times estimate one frame of each benchmark scene from the same runs, Blender version and backend as the displayed Cycles score. The calculation uses 240 samples for Junkshop, 256 for Monster and 300 for Classroom, plus a 19% estimation buffer. Actual project render times vary. Results from different Blender versions may not be directly comparable.

Blender Open Data

Is RX 6400 4 GB good for Blender?

A concise editorial read on where this GPU looks strong, the tradeoffs to keep in mind, and who it suits best.

Tradeoffs to know

  • Meets Blender’s 2 GB VRAM minimum but falls below its 8 GB recommendation for Windows/Linux. Usability depends on GPU and driver compatibility and your scene’s memory needs.
  • Very low recorded benchmark throughput; not recommended as a GPU purchase for Blender rendering. This is editorial guidance, not an official minimum score. Check Blender-version support separately.

Who should choose it

  • RX 6400 4 GB is not recommended as a GPU purchase for current Blender rendering.
  • Check current GPU-rendering support. Historical benchmark results are not proof of compatibility with current Blender.

Popular comparisons for RX 6400 4 GB

Fast paths to nearby Blender GPU matchups.

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Alternative GPUs for Blender

These are nearby alternatives from the same generation, a similar class of card, or a similar Blender performance tier.

Similar Blender Performance

Nearby benchmark alternatives when you care more about practical Blender performance than branding.

PRO W6400

Benchmark neighbor

295

2022 • 4 GB VRAM

GTX 980

Benchmark neighbor

293

2014 • 4 GB VRAM

GTX 780

Benchmark neighbor

310

2013
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