AMD Radeon HD 6950 vs NVIDIA GeForce GTX 465
Graphics Processor
| GPU model | Cayman | GF100 |
|---|---|---|
| GPU variant | Cayman PRO (215-0807019) | GF100-030-A3 |
| Architecture | TeraScale 3 | Fermi |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 40 nm |
| Number of transistors | 2,640 million | 3,100 million |
| Die size | 389 mm² | 529 mm² |
Graphics Card
| Release date | Dec 14th, 2010 | May 31st, 2010 |
|---|---|---|
| Generation | Northern Islands | GeForce 400 |
| Production | End-of-life | End-of-life |
| Launch price | 299 USD | 279 USD |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 111 in our database | 37 in our database |
| Predecessor | Evergreen | GeForce 200 |
| Successor | Southern Islands | GeForce 500 |
Clocks
| GPU clock | 800 MHz | 608 MHz |
|---|---|---|
| Memory clock | 1250 MHz 5 Gbps effective | 802 MHz 3.2 Gbps effective |
| Shader clock | — | 1215 MHz |
Memory Configuration
| Memory size | 2 GB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 160.0 GB/s | 102.7 GB/s |
Render Configuration
| Shading units | 1408 | 352 |
|---|---|---|
| TMUs | 88 | 44 |
| ROPs | 32 | 32 |
| Compute units | 22 | — |
| Cache L1 | 8 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 512 KB | 512 KB |
| SM count | — | 11 |
Performance
| Pixel rate | 25.60 GPixel/s | 13.38 GPixel/s |
|---|---|---|
| Texture rate | 70.40 GTexel/s | 26.75 GTexel/s |
| FP32 (float) performance | 2.253 TFLOPS | 855.4 GFLOPS |
| FP64 (double) performance | 563.2 GFLOPS (1:4) | 106.9 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 286 mm 11.3 inches | 241 mm 9.5 inches |
| Width | 126 mm 5 inches | — |
| Height | 42 mm 1.7 inches | — |
| TDP | 200 W | 200 W |
| Suggested PSU | 550 W | 550 W |
| Outputs | 2x DVI1x HDMI2x mini-DisplayPort | 2x DVI1x mini-HDMI |
| Power connectors | 2x 6-pin | 2x 6-pin |
| Board number | C216-47 | P1025 |
API Support & Features
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 2.0 |
