ATI Radeon X1600 XT Dual vs NVIDIA GeForce 820M
Graphics Processor
| GPU model | RV530 | GF117 |
|---|---|---|
| Architecture | R500 | Fermi 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 90 nm | 28 nm |
| Number of transistors | 157 million | 585 million |
| Die size | 150 mm² | 116 mm² |
| GPU variant | — | N15V-GM-B-A2 |
Graphics Card
| Release date | Never Released | — |
|---|---|---|
| Generation | Radeon R500 PCIe | — |
| Production | End-of-life | — |
| Interface | PCIe 1.0 x16 | — |
| Reviews | 64 in our database | — |
| Predecessor | Radeon R400 PCIe | — |
| Successor | Radeon R600 | — |
Clocks
| GPU clock | 590 MHz | 625 MHz |
|---|---|---|
| Memory clock | 690 MHz 1380 Mbps effective | 900 MHz 1800 Mbps effective |
| Shader clock | — | 1250 MHz |
Memory Configuration
| Memory size | 256 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR3 | DDR3 |
| Memory bus width | 128 bit | 64 bit |
| Bandwidth | 22.08 GB/s | 14.40 GB/s |
Render Configuration
| Pixel shaders | 12 | — |
|---|---|---|
| Vertex shaders | 5 | — |
| TMUs | 4 | 16 |
| ROPs | 4 | 8 |
| Shading units | — | 96 |
| SM count | — | 2 |
| Cache L1 | — | 64 KB (per SM) |
| Cache L2 | — | 128 KB |
Performance
| Pixel rate | 2.360 GPixel/s | 2.500 GPixel/s |
|---|---|---|
| Vertex rate | 737.5 MVertices/s | — |
| Texture rate | 2.360 GTexel/s | 10.00 GTexel/s |
| FP32 (float) performance | — | 240.0 GFLOPS |
| FP64 (double) performance | — | 20.00 GFLOPS (1:12) |
Dimensions & Outputs
| Slot width | Single-slot | — |
|---|---|---|
| TDP | unknown | 15 W |
| Suggested PSU | 200 W | — |
| Outputs | 2x DVI | No outputs |
| Power connectors | 1x Molex | — |
API Support & Features
| DirectX | 9.0c (9_3) | 12 (11_0) |
|---|---|---|
| OpenGL | 2.1 | 4.6 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Shader model | 3.0 | 5.1 |
| CUDA | — | 2.1 |
Other Features
Mobile graphics
| Release date | — | Nov 27th, 2013 |
|---|---|---|
| Generation | — | GeForce 800M |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Predecessor | — | GeForce 700M |
| Successor | — | GeForce 900M |
