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 Arc A770 and Radeon RX 6400.
The Arc A770 is dramatically faster than the Radeon RX 6400, leading by roughly 233% in our performance index.
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Comparable or lower specs
Arc A770 vs Radeon RX 6400: In-Depth Breakdown
Performance: Arc A770 vs Radeon RX 6400
The Arc A770 is dramatically faster, around 233% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the Arc A770 is comfortable at 1080p, while the Radeon RX 6400 is better matched to entry-level 1080p.
Power & Efficiency
The Radeon RX 6400 draws just 53W versus 225W for the Arc A770, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom.
VRAM & Future-Proofing
With 16GB against 4GB, the Arc A770 has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 6400's 4GB can fall short.
Features & Ecosystem
Beyond raw numbers, the Arc A770 brings Intel XeSS upscaling and AV1 encoding, while the Radeon RX 6400 offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: Arc A770 or Radeon RX 6400?
The Arc A770 is the faster card by about 233%. 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 Arc A770 better than the Radeon RX 6400?
Which is better for 4K gaming, the Arc A770 or the Radeon RX 6400?
Does the Arc A770 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc A770 | Radeon RX 6400 |
|---|---|---|
| Architecture | Alchemist | RDNA 2 |
| Process Node | TSMC N6 | TSMC N6 |
| CUDA Cores (Shading Units / Stream Processors) | 4,096✓ | 768 |
| Ray Tracing Cores | 32✓ | 12 |
| Tensor / AI Cores | 512 | — |
Clock Speeds
| Specification | Arc A770 | Radeon RX 6400 |
|---|---|---|
| Base Clock | 2,100 MHz✓ | 1,923 MHz |
| Boost Clock | 2,400 MHz✓ | 2,321 MHz |
Memory
| Specification | Arc A770 | Radeon RX 6400 |
|---|---|---|
| VRAM Capacity | 16 GB✓ | 4 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit✓ | 64-bit |
| Memory Speed | 17.5 Gbps✓ | 16 Gbps |
| Bandwidth | 560 GB/s✓ | 128 GB/s |
Connectivity & Power
| Specification | Arc A770 | Radeon RX 6400 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x4 |
| TDP | 225 W | 53 W✓ |
| Power Connectors | 2x 8-pin | None |
| Released | Oct 2022 | Jan 2022 |
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