NVIDIA GeForce Go 7900 GS vs NVIDIA GeForce GT 120 Mac Edition
Graphics Processor
| GPU model | G71 | G96C |
|---|---|---|
| Architecture | Curie | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 90 nm | 55 nm |
| Number of transistors | 278 million | 314 million |
| Die size | 196 mm² | 121 mm² |
Mobile graphics
| Release date | Apr 18th, 2006 | — |
|---|---|---|
| Generation | GeForce Go 7 (Go 7000) | — |
| Production | End-of-life | — |
| Interface | MXM-II | — |
| Predecessor | GeForce Go 6 | — |
| Successor | GeForce 8M | — |
Clocks
| GPU clock | 375 MHz | 550 MHz |
|---|---|---|
| Memory clock | 500 MHz 1000 Mbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1400 MHz |
Memory Configuration
| Memory size | 512 MB | 512 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 32.00 GB/s | 25.60 GB/s |
Render Configuration
| Pixel shaders | 20 | — |
|---|---|---|
| Vertex shaders | 7 | — |
| TMUs | 20 | 16 |
| ROPs | 16 | 8 |
| Shading units | — | 32 |
| SM count | — | 4 |
| Cache L2 | — | 32 KB |
Performance
| Pixel rate | 6.000 GPixel/s | 4.400 GPixel/s |
|---|---|---|
| Vertex rate | 656.3 MVertices/s | — |
| Texture rate | 7.500 GTexel/s | 8.800 GTexel/s |
| FP32 (float) performance | — | 89.60 GFLOPS |
Dimensions & Outputs
| Slot width | MXM Module | Single-slot |
|---|---|---|
| TDP | 20 W | 50 W |
| Outputs | No outputs | 1x DVI1x mini-DisplayPort |
| Length | — | 145 mm 5.7 inches |
| Suggested PSU | — | 250 W |
| Power connectors | — | None |
| Board number | — | P815 |
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 |
Other Features
Graphics Card
| Release date | — | Jan 20th, 2009 |
|---|---|---|
| Generation | — | GeForce 100 |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Predecessor | — | GeForce 9 |
| Successor | — | GeForce 200 |
