amd
Brand1GB GDDR5
Memory896
Cores96 GB/s
BandwidthAMD Radeon HD 7790
amd
Brand4GB GDDR6
Memory768
Cores128 GB/s
BandwidthAMD Radeon RX 6400
AMD Radeon HD 7790
Radeon HD 7790
$149 • Mar 2013
Radeon RX 6400
$159 • Jan 2022
AMD Radeon RX 6400
Specs Comparison
| Specification | AMD Radeon HD 7790 | AMD Radeon RX 6400 |
|---|---|---|
| Memory Size | 1 GB | 4 GB |
| Memory Type | GDDR5 | GDDR6 |
| TDP | 85 W | 53 W |
| Core Clock | N/A | N/A |
| Boost Clock | N/A | 2321 MHz |
| Memory Bandwidth | 96 GB/s | 128 GB/s |
| Process Size | 28nm | 6nm |
| Architecture | GCN 2.0 | RDNA 2.0 |
| Shading Units | 896 | 768 |
| RT Cores | N/A | 12 |
| TMUs | 56 | 48 |
| ROPs | 16 | 32 |
| Memory Bus | 128-bit | 64-bit |
| Memory Clock | 1500 MHz | 2000 MHz |
| Pixel Rate | 16 GPixel/s | 74.27 GPixel/s |
| Texture Rate | 96 GTexel/s | 128 GTexel/s |
| FP32 Performance | 1.792 GFLOPS | 3.565 GFLOPS |
| L2 Cache | 0.25 MB | 1.00 MB |
| Die Size | 160 mm² | 107 mm² |
| Transistors | 2080 Million | 5400 Million |
| Required PSU | 250 W | 250 W |
| Power Connectors | 1x 6-pin | None |
| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x4 |
| DirectX | 12 | 12.2 |
| Vulkan | N/A | 1.3 |
| 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 HD 7790
AMD Radeon RX 6400
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
AMD Radeon HD 7790
AMD Radeon RX 6400
GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
AMD Radeon HD 7790
AMD Radeon RX 6400
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon HD 7790
AMD Radeon RX 6400
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 HD 7790
AMD • 1GB GDDR5
AMD Radeon RX 6400
AMD • 4GB GDDR6
Most Compared GPUs
Comments & Discussion
Share your thoughts and experiences