AMD Radeon HD 6790 vs AMD Radeon RX Vega Nano
Graphics Processor
| GPU model | Barts | Vega 10 |
|---|---|---|
| GPU variant | Barts LE (215-0798002) | Vega 10 XT (215-0894200) |
| Architecture | TeraScale 2 | GCN 5.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 40 nm | 14 nm |
| Number of transistors | 1,700 million | 12,500 million |
| Die size | 255 mm² | 495 mm² |
Graphics Card
| Release date | Apr 4th, 2011 | Never Released |
|---|---|---|
| Generation | Northern Islands | Vega |
| Production | End-of-life | unknown |
| Launch price | 149 USD | — |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Reviews | 37 in our database | — |
| Predecessor | Evergreen | Polaris |
| Successor | Southern Islands | Navi |
Clocks
| GPU clock | 840 MHz | — |
|---|---|---|
| Memory clock | 1050 MHz 4.2 Gbps effective | 800 MHz 1600 Mbps effective |
| Base clock | — | 1247 MHz |
| Boost clock | — | 1546 MHz |
Memory Configuration
| Memory size | 1024 MB | 8 GB |
|---|---|---|
| Memory type | GDDR5 | HBM2 |
| Memory bus width | 256 bit | 2048 bit |
| Bandwidth | 134.4 GB/s | 409.6 GB/s |
Render Configuration
| Shading units | 800 | 4096 |
|---|---|---|
| TMUs | 40 | 256 |
| ROPs | 16 | 64 |
| Compute units | 10 | 64 |
| Cache L1 | 8 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 4 MB |
Performance
| Pixel rate | 13.44 GPixel/s | 98.94 GPixel/s |
|---|---|---|
| Texture rate | 33.60 GTexel/s | 395.8 GTexel/s |
| FP32 (float) performance | 1,344 GFLOPS | 12.66 TFLOPS |
| FP64 (double) performance | — | 791.6 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 198 mm 7.8 inches | 152 mm 6 inches |
| TDP | 150 W | 175 W |
| Suggested PSU | 450 W | 450 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | 1x HDMI3x DisplayPort |
| Power connectors | 2x 6-pin | 1x 8-pin |
| Board number | C220, C222 | — |
| Width | — | 111 mm 4.4 inches |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | — | 1.2 |
| Shader model | 5.0 | 6.4 |
