NVIDIA GeForce 7900 GX2 vs NVIDIA GeForce GT 130 Mac Edition
Graphics Processor
| GPU model | G71 | G94B |
|---|---|---|
| Architecture | Curie | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 90 nm | 55 nm |
| Number of transistors | 278 million | 505 million |
| Die size | 196 mm² | 196 mm² |
Graphics Card
| Release date | Apr 30th, 2006 | Dec 12th, 2008 |
|---|---|---|
| Generation | GeForce 7 PCIe | GeForce 100 |
| Production | End-of-life | End-of-life |
| Launch price | 599 USD | — |
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Reviews | 145 in our database | — |
| Predecessor | GeForce 6 PCIe | GeForce 9 |
| Successor | GeForce 8 | GeForce 200 |
Clocks
| GPU clock | 500 MHz | 600 MHz |
|---|---|---|
| Memory clock | 600 MHz 1200 Mbps effective | 792 MHz 1584 Mbps effective |
| Shader clock | — | 1500 MHz |
Memory Configuration
| Memory size | 512 MB | 512 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 256 bit | 192 bit |
| Bandwidth | 38.40 GB/s | 38.02 GB/s |
Render Configuration
| Pixel shaders | 24 | — |
|---|---|---|
| Vertex shaders | 8 | — |
| TMUs | 24 | 24 |
| ROPs | 16 | 12 |
| Shading units | — | 48 |
| SM count | — | 6 |
| Cache L2 | — | 48 KB |
Performance
| Pixel rate | 8.000 GPixel/s | 7.200 GPixel/s |
|---|---|---|
| Vertex rate | 1.000 GVertices/s | — |
| Texture rate | 12.00 GTexel/s | 14.40 GTexel/s |
| FP32 (float) performance | — | 144.0 GFLOPS |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| Length | 312 mm 12.3 inches | 229 mm 9 inches |
| TDP | 110 W | 75 W |
| Suggested PSU | 300 W | 250 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Power connectors | 2x 6-pin | 1x 6-pin |
| Board number | P278, P378 | P816 |
API Support & Features
| DirectX | 9.0c (9_3) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 2.1 | 3.3 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Shader model | 3.0 | 4.0 |
| CUDA | — | 1.1 |
