NVIDIA GeForce Go 6400 vs NVIDIA GeForce GT 420 OEM
Graphics Processor
| GPU model | NV44 | GF108 |
|---|---|---|
| GPU variant | GF-GO6400SQ-N-A2 | GF108-200-A1 |
| Architecture | Curie | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 110 nm | 40 nm |
| Number of transistors | 75 million | 585 million |
| Die size | 110 mm² | 116 mm² |
Mobile graphics
| Release date | Feb 1st, 2006 | — |
|---|---|---|
| Generation | GeForce Go 6 (Go 6000) | — |
| Production | End-of-life | — |
| Interface | PCIe 1.0 x16 | — |
| Reviews | 2 in our database | — |
| Predecessor | GeForce FX Go 5 | — |
| Successor | GeForce Go 7 | — |
Clocks
| GPU clock | 400 MHz | 700 MHz |
|---|---|---|
| Memory clock | 350 MHz 700 Mbps effective | 900 MHz 1800 Mbps effective |
| Shader clock | — | 1400 MHz |
Memory Configuration
| Memory size | 32 MB | 1024 MB |
|---|---|---|
| Memory type | DDR | DDR3 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 5.600 GB/s | 28.80 GB/s |
Render Configuration
| Pixel shaders | 4 | — |
|---|---|---|
| Vertex shaders | 3 | — |
| TMUs | 4 | 4 |
| ROPs | 2 | 4 |
| Shading units | — | 48 |
| SM count | — | 1 |
| Cache L1 | — | 64 KB (per SM) |
| Cache L2 | — | 256 KB |
Performance
| Pixel rate | 800.0 MPixel/s | 1.400 GPixel/s |
|---|---|---|
| Vertex rate | 300.0 MVertices/s | — |
| Texture rate | 1.600 GTexel/s | 2.800 GTexel/s |
| FP32 (float) performance | — | 134.4 GFLOPS |
| FP64 (double) performance | — | 11.20 GFLOPS (1:12) |
Dimensions & Outputs
| TDP | unknown | 50 W |
|---|---|---|
| Outputs | No outputs | 1x DVI1x HDMI1x VGA |
| Slot width | — | Single-slot |
| Length | — | 145 mm 5.7 inches |
| Suggested PSU | — | 250 W |
| Power connectors | — | None |
| Board number | — | P1071 |
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
Graphics Card
| Release date | — | Sep 3rd, 2010 |
|---|---|---|
| Generation | — | GeForce 400 |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Predecessor | — | GeForce 200 |
| Successor | — | GeForce 500 |
