ATI Radeon HD 2900 XTX vs NVIDIA GRID K120Q
Graphics Processor
| GPU model | R600 | GK107 |
|---|---|---|
| GPU variant | R600 XTX A11 (215RGMDKA11FG) | — |
| Architecture | TeraScale | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 80 nm | 28 nm |
| Number of transistors | 720 million | 1,270 million |
| Die size | 420 mm² | 118 mm² |
Graphics Card
| Release date | Never Released | Jul 2nd, 2014 |
|---|---|---|
| Generation | Radeon R600 | GRID |
| Production | End-of-life | End-of-life |
| Interface | PCIe 1.0 x16 | PCIe 3.0 x16 |
| Reviews | 63 in our database | — |
| Predecessor | Radeon R500 PCIe | — |
| Successor | Radeon R700 | — |
| Launch price | — | 125 USD |
Clocks
| GPU clock | 743 MHz | 850 MHz |
|---|---|---|
| Memory clock | 828 MHz 1656 Mbps effective | 891 MHz 1782 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 512 MB |
|---|---|---|
| Memory type | GDDR3 | DDR3 |
| Memory bus width | 512 bit | 128 bit |
| Bandwidth | 106.0 GB/s | 28.51 GB/s |
Render Configuration
| Shading units | 320 | 192 |
|---|---|---|
| TMUs | 16 | 16 |
| ROPs | 16 | 16 |
| Compute units | 4 | — |
| Cache L2 | 256 KB | 256 KB |
| SMX count | — | 1 |
| Cache L1 | — | 16 KB (per SMX) |
Performance
| Pixel rate | 11.89 GPixel/s | 3.400 GPixel/s |
|---|---|---|
| Texture rate | 11.89 GTexel/s | 13.60 GTexel/s |
| FP32 (float) performance | 475.5 GFLOPS | 326.4 GFLOPS |
| FP64 (double) performance | — | 13.60 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 315 mm 12.4 inches | — |
| TDP | 240 W | 130 W |
| Suggested PSU | 550 W | 300 W |
| Outputs | 2x DVI1x S-Video | No outputs |
| Power connectors | 2x 6-pin | — |
| Board number | B001-31 | — |
API Support & Features
| DirectX | 10.0 (10_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 3.3 (full) 4.0 (partial) | 4.6 |
| OpenCL | — | 3.0 |
| Vulkan | — | 1.1 |
| Shader model | 4.0 | 5.1 |
| CUDA | — | 3.0 |
