NVIDIA GeForce GTX 285 vs NVIDIA GeForce GTX 660M Mac Edition
Graphics Processor
| GPU model | GT200B | GK107 |
|---|---|---|
| GPU variant | G200-350-B3 | — |
| Architecture | Tesla 2.0 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 28 nm |
| Number of transistors | 1,400 million | 1,270 million |
| Die size | 470 mm² | 118 mm² |
Graphics Card
| Release date | Dec 23rd, 2008 | — |
|---|---|---|
| Generation | GeForce 200 | — |
| Production | End-of-life | — |
| Launch price | 359 USD | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 88 in our database | — |
| Predecessor | GeForce 9 | — |
| Successor | GeForce 400 | — |
Clocks
| GPU clock | 648 MHz | 950 MHz |
|---|---|---|
| Shader clock | 1476 MHz | — |
| Memory clock | 1242 MHz 2.5 Gbps effective | 1250 MHz 5 Gbps effective |
Memory Configuration
| Memory size | 1024 MB | 512 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR5 |
| Memory bus width | 512 bit | 128 bit |
| Bandwidth | 159.0 GB/s | 80.00 GB/s |
Render Configuration
| Shading units | 240 | 384 |
|---|---|---|
| TMUs | 80 | 32 |
| ROPs | 32 | 16 |
| SM count | 30 | — |
| Cache L2 | 256 KB | 256 KB |
| SMX count | — | 2 |
| Cache L1 | — | 16 KB (per SMX) |
Performance
| Pixel rate | 20.74 GPixel/s | 7.600 GPixel/s |
|---|---|---|
| Texture rate | 51.84 GTexel/s | 30.40 GTexel/s |
| FP32 (float) performance | 708.5 GFLOPS | 729.6 GFLOPS |
| FP64 (double) performance | 88.56 GFLOPS (1:8) | 30.40 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Dual-slot | MXM Module |
|---|---|---|
| Length | 267 mm 10.5 inches | — |
| TDP | 204 W | 50 W |
| Suggested PSU | 550 W | — |
| Outputs | 2x DVI1x S-Video | No outputs |
| Power connectors | 2x 6-pin | None |
| Board number | P892 | — |
API Support & Features
| DirectX | 11.1 (10_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 3.0 |
| Vulkan | — | 1.1 |
| CUDA | 1.3 | 3.0 |
| Shader model | 4.0 | 5.1 |
Other Features
Mobile graphics
| Release date | — | Apr 1st, 2013 |
|---|---|---|
| Generation | — | GeForce 600M |
| Production | — | End-of-life |
| Interface | — | MXM-B (3.0) |
| Predecessor | — | GeForce 500M |
| Successor | — | GeForce 700M |
