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GPU Comparison

Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.

Market Value Leader

Market comparison is currently pending while we verify the latest benchmarks for Radeon RX 6400 and Radeon RX 6800M.

Quick Verdict

The Radeon RX 6800M is dramatically faster than the Radeon RX 6400, leading by roughly 350% in our performance index.

Maximum Capacity Reached. Remove a model to add another. (2/2)

VS
AMD
Radeon RX 6400
Price
¥89,472✓
Performance
6/100
VRAM
4 GB GDDR6
Key Specs Advantage
+1% Boost Clock (2,321 MHz vs 2,300 MHz)
AMD
Radeon RX 6800M
Price
Reference GPU
Performance
27/100✓
VRAM
12 GB GDDR6✓
Key Specs Advantage
+233% Stream Processors (2,560 vs 768)
+233% Ray Accelerators (40 vs 12)
+200% Bandwidth (384 GB/s vs 128 GB/s)
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Radeon RX 6800M vs Radeon RX 6400: In-Depth Breakdown

Performance: Radeon RX 6800M vs Radeon RX 6400

The Radeon RX 6800M is dramatically faster, around 350% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the Radeon RX 6800M is comfortable at 1440p, while the Radeon RX 6400 is better matched to entry-level 1080p. The Radeon RX 6800M packs 2,560 stream processors versus 768 on the Radeon RX 6400. The Radeon RX 6800M also has more RT cores (40 vs 12), strengthening its ray-tracing and AI-upscaling performance.

Power & Efficiency

The Radeon RX 6400 pulls less power (53W vs 145W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon RX 6800M draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it.

VRAM & Future-Proofing

With 12GB against 4GB, the Radeon RX 6800M has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 6400's 4GB can fall short. The Radeon RX 6800M's memory is also faster — 384 GB/s versus 128 GB/s (192-bit vs 64-bit bus) — which helps feed the GPU at 4K and with heavy textures.

Which should you buy: Radeon RX 6400 or Radeon RX 6800M?

The Radeon RX 6800M is the faster card by about 350%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.

Frequently Asked Questions

Is the Radeon RX 6800M better than the Radeon RX 6400?

The Radeon RX 6800M is dramatically faster, roughly 350% ahead. If your budget allows, it's the stronger pick.

Which is better for 4K gaming, the Radeon RX 6400 or the Radeon RX 6800M?

Neither is a dedicated 4K card; both are best at 1440p. For 4K you'd want a faster GPU, or lean on upscaling.

Does the Radeon RX 6800M have enough VRAM advantage to matter?

Its 12GB (vs 4GB) gives real headroom for 4K, heavy texture mods, and creative/AI work. At 1080p the gap matters less.

Which is better for ray tracing, the Radeon RX 6800M or the Radeon RX 6400?

Both handle ray tracing, but the Radeon RX 6800M has more RT cores, giving it better ray-tracing and AI-upscaling performance than the Radeon RX 6400.

Technical Specifications Comparison

Architecture & Cores

SpecificationRadeon RX 6400Radeon RX 6800M
ArchitectureRDNA 2RDNA 2
Process NodeTSMC N6TSMC 7nm
CUDA Cores (Stream Processors / Stream Processors)7682,560✓
Ray Tracing Cores1240✓
Tensor / AI Cores—80

Clock Speeds

SpecificationRadeon RX 6400Radeon RX 6800M
Base Clock1,923 MHz1,975 MHz✓
Boost Clock2,321 MHz✓2,300 MHz

Memory

SpecificationRadeon RX 6400Radeon RX 6800M
VRAM Capacity4 GB12 GB✓
Memory TypeGDDR6GDDR6
Memory Bus64-bit192-bit✓
Memory Speed16 Gbps16 Gbps
Bandwidth128 GB/s384 GB/s✓

Connectivity & Power

SpecificationRadeon RX 6400Radeon RX 6800M
InterfacePCIe 4.0 x4PCIe 4.0 x16
TDP53 W✓145 W
Power ConnectorsNoneNone
ReleasedJan 2022Jun 2021
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