NVIDIA GeForce GTX 480 vs NVIDIA GeForce GTX 660
Graphics Processor
| GPU model | GF100 | GK106 |
|---|---|---|
| GPU variant | GF100-375-A3 | GK106-400-A1 |
| Architecture | Fermi | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 28 nm |
| Number of transistors | 3,100 million | 2,540 million |
| Die size | 529 mm² | 221 mm² |
Graphics Card
| Release date | Mar 26th, 2010 | Sep 6th, 2012 |
|---|---|---|
| Generation | GeForce 400 | GeForce 600 |
| Production | End-of-life | End-of-life |
| Launch price | 499 USD | 229 USD |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Reviews | 84 in our database | 77 in our database |
| Predecessor | GeForce 200 | GeForce 500 |
| Successor | GeForce 500 | GeForce 700 |
Clocks
| GPU clock | 701 MHz | — |
|---|---|---|
| Shader clock | 1401 MHz | — |
| Memory clock | 924 MHz 3.7 Gbps effective | 1502 MHz 6 Gbps effective |
| Base clock | — | 980 MHz |
| Boost clock | — | 1032 MHz |
Memory Configuration
| Memory size | 1536 MB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 384 bit | 192 bit |
| Bandwidth | 177.4 GB/s | 144.2 GB/s |
Render Configuration
| Shading units | 480 | 960 |
|---|---|---|
| TMUs | 60 | 80 |
| ROPs | 48 | 24 |
| SM count | 15 | — |
| Cache L1 | 64 KB (per SM) | 16 KB (per SMX) |
| Cache L2 | 768 KB | 384 KB |
| SMX count | — | 5 |
Performance
| Pixel rate | 21.03 GPixel/s | 20.64 GPixel/s |
|---|---|---|
| Texture rate | 42.06 GTexel/s | 82.56 GTexel/s |
| FP32 (float) performance | 1,345 GFLOPS | 1.981 TFLOPS |
| FP64 (double) performance | 168.1 GFLOPS (1:8) | 82.56 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 267 mm 10.5 inches | 241 mm 9.5 inches |
| TDP | 250 W | 140 W |
| Suggested PSU | 600 W | 300 W |
| Outputs | 2x DVI1x mini-HDMI | 2x DVI1x HDMI1x DisplayPort |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin |
| Board number | P1022 | P2030 |
API Support & Features
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 3.0 |
| Vulkan | — | 1.1 |
| CUDA | 2.0 | 3.0 |
| Shader model | 5.1 | 5.1 |
