GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for Radeon RX 6400 is available. Benchmarks for other models are currently being processed.
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)
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?
Which is better for 4K gaming, the Radeon RX 6400 or the Radeon RX 6800M?
Does the Radeon RX 6800M have enough VRAM advantage to matter?
Which is better for ray tracing, the Radeon RX 6800M or the Radeon RX 6400?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6400 | Radeon RX 6800M |
|---|---|---|
| Architecture | RDNA 2 | RDNA 2 |
| Process Node | TSMC N6 | TSMC 7nm |
| CUDA Cores (Stream Processors / Stream Processors) | 768 | 2,560✓ |
| Ray Tracing Cores | 12 | 40✓ |
| Tensor / AI Cores | — | 80 |
Clock Speeds
| Specification | Radeon RX 6400 | Radeon RX 6800M |
|---|---|---|
| Base Clock | 1,923 MHz | 1,975 MHz✓ |
| Boost Clock | 2,321 MHz✓ | 2,300 MHz |
Memory
| Specification | Radeon RX 6400 | Radeon RX 6800M |
|---|---|---|
| VRAM Capacity | 4 GB | 12 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 64-bit | 192-bit✓ |
| Memory Speed | 16 Gbps | 16 Gbps |
| Bandwidth | 128 GB/s | 384 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6400 | Radeon RX 6800M |
|---|---|---|
| Interface | PCIe 4.0 x4 | PCIe 4.0 x16 |
| TDP | 53 W✓ | 145 W |
| Power Connectors | None | None |
| Released | Jan 2022 | Jun 2021 |