AMD Radeon RX Vega Nano vs ATI Radeon HD 4890
Graphics Processor
| GPU model | Vega 10 | RV790 |
|---|---|---|
| GPU variant | Vega 10 XT (215-0894200) | RV790 XT (215-0758016) |
| Architecture | GCN 5.0 | TeraScale |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 55 nm |
| Number of transistors | 12,500 million | 959 million |
| Die size | 495 mm² | 282 mm² |
Graphics Card
| Release date | Never Released | Apr 2nd, 2009 |
|---|---|---|
| Generation | Vega | Radeon R700 |
| Predecessor | Polaris | Radeon R600 |
| Successor | Navi | Evergreen |
| Production | unknown | End-of-life |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Launch price | — | 249 USD |
| Reviews | — | 114 in our database |
Clocks
| Base clock | 1247 MHz | — |
|---|---|---|
| Boost clock | 1546 MHz | — |
| Memory clock | 800 MHz 1600 Mbps effective | 975 MHz 3.9 Gbps effective |
| GPU clock | — | 850 MHz |
Memory Configuration
| Memory size | 8 GB | 1024 MB |
|---|---|---|
| Memory type | HBM2 | GDDR5 |
| Memory bus width | 2048 bit | 256 bit |
| Bandwidth | 409.6 GB/s | 124.8 GB/s |
Render Configuration
| Shading units | 4096 | 800 |
|---|---|---|
| TMUs | 256 | 40 |
| ROPs | 64 | 16 |
| Compute units | 64 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 4 MB | 256 KB |
Performance
| Pixel rate | 98.94 GPixel/s | 13.60 GPixel/s |
|---|---|---|
| Texture rate | 395.8 GTexel/s | 34.00 GTexel/s |
| FP32 (float) performance | 12.66 TFLOPS | 1,360 GFLOPS |
| FP64 (double) performance | 791.6 GFLOPS (1:16) | 272.0 GFLOPS (1:5) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 152 mm 6 inches | 241 mm 9.5 inches |
| Width | 111 mm 4.4 inches | 111 mm 4.4 inches |
| TDP | 175 W | 190 W |
| Suggested PSU | 450 W | 450 W |
| Outputs | 1x HDMI3x DisplayPort | 2x DVI1x S-Video |
| Power connectors | 1x 8-pin | 2x 6-pin |
| Height | — | 40 mm 1.6 inches |
| Board number | — | B790-31 |
API Support & Features
| DirectX | 12 (12_1) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 2.1 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 6.4 | 4.1 |
