NVIDIA GeForce 6800 GT vs NVIDIA GeForce GTX 650
Graphics Processor
| GPU model | NV40 | GK106 |
|---|---|---|
| GPU variant | 6800 GT | — |
| Architecture | Curie | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 130 nm | 28 nm |
| Number of transistors | 222 million | 2,540 million |
| Die size | 287 mm² | 221 mm² |
Graphics Card
| Release date | Apr 14th, 2004 | Nov 27th, 2013 |
|---|---|---|
| Generation | GeForce 6 AGP | GeForce 600 |
| Production | End-of-life | End-of-life |
| Interface | AGP 8x | PCIe 3.0 x16 |
| Reviews | 115 in our database | 17 in our database |
| Predecessor | GeForce FX | GeForce 500 |
| Successor | GeForce 7 AGP | GeForce 700 |
Clocks
| GPU clock | 350 MHz | 1058 MHz |
|---|---|---|
| Memory clock | 250 MHz 500 Mbps effective | 1250 MHz 5 Gbps effective |
Memory Configuration
| Memory size | 128 MB | 1024 MB |
|---|---|---|
| Memory type | DDR | GDDR5 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 16.00 GB/s | 80.00 GB/s |
Render Configuration
| Pixel shaders | 16 | — |
|---|---|---|
| Vertex shaders | 6 | — |
| TMUs | 16 | 32 |
| ROPs | 16 | 16 |
| Shading units | — | 384 |
| SMX count | — | 2 |
| Cache L1 | — | 16 KB (per SMX) |
| Cache L2 | — | 256 KB |
Performance
| Pixel rate | 5.600 GPixel/s | 8.464 GPixel/s |
|---|---|---|
| Vertex rate | 525.0 MVertices/s | — |
| Texture rate | 5.600 GTexel/s | 33.86 GTexel/s |
| FP32 (float) performance | — | 812.5 GFLOPS |
| FP64 (double) performance | — | 33.86 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | unknown | 65 W |
| Suggested PSU | 200 W | 250 W |
| Outputs | 1x DVI1x VGA1x S-Video | 1x DVI2x DisplayPort |
| Power connectors | 1x Molex | 1x 6-pin |
| Board number | P201, P212 | — |
| Length | — | 147 mm 5.8 inches |
API Support & Features
| DirectX | 9.0c (9_3) | 12 (11_0) |
|---|---|---|
| OpenGL | 2.1 | 4.6 |
| OpenCL | — | 3.0 |
| Vulkan | — | 1.1 |
| Shader model | 3.0 | 5.1 |
| CUDA | — | 3.0 |
