ATI Radeon X1650 XT Dual vs NVIDIA GeForce GTX 660M Mac Edition
Graphics Processor
| GPU model | RV560 | GK107 |
|---|---|---|
| GPU variant | RV560 XT (215PAGAKA12FG) | — |
| Architecture | R500 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 80 nm | 28 nm |
| Number of transistors | 330 million | 1,270 million |
| Die size | 230 mm² | 118 mm² |
Graphics Card
| Release date | Oct 30th, 2006 | — |
|---|---|---|
| Generation | Radeon R500 PCIe | — |
| Production | End-of-life | — |
| Interface | PCIe 1.0 x16 | — |
| Reviews | 49 in our database | — |
| Predecessor | Radeon R400 PCIe | — |
| Successor | Radeon R600 | — |
Clocks
| GPU clock | 525 MHz | 950 MHz |
|---|---|---|
| Memory clock | 700 MHz 1400 Mbps effective | 1250 MHz 5 Gbps effective |
Memory Configuration
| Memory size | 256 MB | 512 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR5 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 22.40 GB/s | 80.00 GB/s |
Render Configuration
| Pixel shaders | 24 | — |
|---|---|---|
| Vertex shaders | 8 | — |
| TMUs | 8 | 32 |
| ROPs | 8 | 16 |
| Shading units | — | 384 |
| SMX count | — | 2 |
| Cache L1 | — | 16 KB (per SMX) |
| Cache L2 | — | 256 KB |
Performance
| Pixel rate | 4.200 GPixel/s | 7.600 GPixel/s |
|---|---|---|
| Vertex rate | 1.050 GVertices/s | — |
| Texture rate | 4.200 GTexel/s | 30.40 GTexel/s |
| FP32 (float) performance | — | 729.6 GFLOPS |
| FP64 (double) performance | — | 30.40 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Single-slot | MXM Module |
|---|---|---|
| TDP | unknown | 50 W |
| Suggested PSU | 200 W | — |
| Outputs | 2x DVI | No outputs |
| Power connectors | 1x 6-pin | None |
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 |
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 |
