amd
Brand4GB GDDR6
Memory768
Cores128 GB/s
BandwidthAMD Radeon RX 6400
amd
Brand2GB GDDR5
Memory1024
Cores153.6 GB/s
BandwidthAMD Radeon HD 7850
AMD Radeon RX 6400
Radeon RX 6400
$159 • Jan 2022
Radeon HD 7850
$249 • Mar 2012
AMD Radeon HD 7850
Specs Comparison
| Specification | AMD Radeon RX 6400 | AMD Radeon HD 7850 |
|---|---|---|
| Memory Size | 4 GB | 2 GB |
| Memory Type | GDDR6 | GDDR5 |
| TDP | 53 W | 130 W |
| Core Clock | N/A | N/A |
| Boost Clock | 2321 MHz | N/A |
| Memory Bandwidth | 128 GB/s | 153.6 GB/s |
| Process Size | 6nm | 28nm |
| Architecture | RDNA 2.0 | GCN 1.0 |
| Shading Units | 768 | 1024 |
| RT Cores | 12 | N/A |
| TMUs | 48 | 64 |
| ROPs | 32 | 32 |
| Memory Bus | 64-bit | 256-bit |
| Memory Clock | 2000 MHz | 1200 MHz |
| Pixel Rate | 74.27 GPixel/s | 27.52 GPixel/s |
| Texture Rate | 128 GTexel/s | 153.6 GTexel/s |
| FP32 Performance | 3.565 GFLOPS | 1.761 GFLOPS |
| L2 Cache | 1.00 MB | 0.50 MB |
| Die Size | 107 mm² | 212 mm² |
| Transistors | 5400 Million | 2800 Million |
| Required PSU | 250 W | 300 W |
| Power Connectors | None | 1x 6-pin |
| Bus Interface | PCIe 4.0 x4 | PCIe 3.0 x16 |
| DirectX | 12.2 | 11.1 |
| Vulkan | 1.3 | N/A |
| OpenGL | 4.6 | 4.6 |
| Foundry | TSMC | TSMC |
Comparison in Synthetic Benchmarks
3DMark Time Spy
Synthetic DirectX 12 benchmark that measures GPU performance in gaming workloads
Graphics Score
AMD Radeon RX 6400
AMD Radeon HD 7850
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
AMD Radeon RX 6400
AMD Radeon HD 7850
GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
AMD Radeon RX 6400
AMD Radeon HD 7850
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon RX 6400
AMD Radeon HD 7850
Game Benchmarks Comparison
No game benchmarks available for this combination of GPUs yet.
We're working on collecting performance data for this combination of GPUs. Please check back later.
AMD Radeon RX 6400 Wins!
Based on 4 synthetic benchmarks
AMD Radeon RX 6400
AMD • 4GB GDDR6
AMD Radeon HD 7850
AMD • 2GB GDDR5
Most Compared GPUs
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