NVIDIA GeForce GTX 280 vs NVIDIA GeForce GTX 295
Graphics Processor
| GPU model | GT200 | GT200B |
|---|---|---|
| GPU variant | G200-300-A2 | G200-401-B3 |
| Architecture | Tesla 2.0 | Tesla 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 65 nm | 55 nm |
| Number of transistors | 1,400 million | 1,400 million |
| Die size | 576 mm² | 470 mm² |
Graphics Card
| Release date | Jun 16th, 2008 | Jan 8th, 2009 |
|---|---|---|
| Generation | GeForce 200 | GeForce 200 |
| Production | End-of-life | End-of-life |
| Launch price | 649 USD | 500 USD |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 59 in our database | 74 in our database |
| Predecessor | GeForce 9 | GeForce 9 |
| Successor | GeForce 400 | GeForce 400 |
Clocks
| GPU clock | 602 MHz | 576 MHz |
|---|---|---|
| Shader clock | 1296 MHz | 1242 MHz |
| Memory clock | 1107 MHz 2.2 Gbps effective | 999 MHz 1998 Mbps effective |
Memory Configuration
| Memory size | 1024 MB | 896 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 512 bit | 448 bit |
| Bandwidth | 141.7 GB/s | 111.9 GB/s |
Render Configuration
| Shading units | 240 | 240 |
|---|---|---|
| TMUs | 80 | 80 |
| ROPs | 32 | 28 |
| SM count | 30 | 30 |
| Cache L2 | 256 KB | 224 KB |
Performance
| Pixel rate | 19.26 GPixel/s | 16.13 GPixel/s |
|---|---|---|
| Texture rate | 48.16 GTexel/s | 46.08 GTexel/s |
| FP32 (float) performance | 622.1 GFLOPS | 596.2 GFLOPS |
| FP64 (double) performance | 77.76 GFLOPS (1:8) | 74.52 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 267 mm 10.5 inches | 267 mm 10.5 inches |
| TDP | 236 W | 289 W |
| Suggested PSU | 550 W | 600 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x HDMI |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin + 1x 8-pin |
| Board number | P651 | P657 |
| Width | — | 111 mm 4.4 inches |
| Height | — | 38 mm 1.5 inches |
API Support & Features
| DirectX | 11.1 (10_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| CUDA | 1.3 | 1.3 |
| Shader model | 4.0 | 4.0 |
