ATI Radeon 9800 XT Mac Edition vs NVIDIA GeForce GT 645M
Graphics Processor
| GPU model | R360 | GK107 |
|---|---|---|
| GPU variant | R360 (215R9RBKA11F) | N13P-GS |
| Architecture | Rage 9 | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 150 nm | 28 nm |
| Number of transistors | 117 million | 1,270 million |
| Die size | 218 mm² | 118 mm² |
Graphics Card
| Release date | Mar 14th, 2004 | — |
|---|---|---|
| Generation | Radeon R300 | — |
| Production | End-of-life | — |
| Interface | AGP Pro 8x | — |
| Reviews | 20 in our database | — |
| Predecessor | Radeon R200 | — |
| Successor | Radeon R400 AGP | — |
Clocks
| GPU clock | 412 MHz | 709 MHz |
|---|---|---|
| Memory clock | 365 MHz 730 Mbps effective | 900 MHz 1800 Mbps effective |
Memory Configuration
| Memory size | 256 MB | 2 GB |
|---|---|---|
| Memory type | DDR | DDR3 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 23.36 GB/s | 28.80 GB/s |
Render Configuration
| Pixel shaders | 8 | — |
|---|---|---|
| Vertex shaders | 4 | — |
| 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 | 3.296 GPixel/s | 5.672 GPixel/s |
|---|---|---|
| Vertex rate | 412.0 MVertices/s | — |
| Texture rate | 3.296 GTexel/s | 22.69 GTexel/s |
| FP32 (float) performance | — | 544.5 GFLOPS |
| FP64 (double) performance | — | 22.69 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | Single-slot | — |
|---|---|---|
| TDP | 60 W | 32 W |
| Suggested PSU | 250 W | — |
| Outputs | 2x DVI | No outputs |
| Power connectors | None | — |
API Support & Features
| DirectX | 9.0 | 12 (11_0) |
|---|---|---|
| OpenGL | 2.0 | 4.6 |
| OpenCL | — | 3.0 |
| Vulkan | — | 1.1 |
| Pixel shader | 2.0 | — |
| Vertex shader | 2.0 | — |
| CUDA | — | 3.0 |
| Shader model | — | 5.1 |
Other Features
Mobile graphics
| Release date | — | Oct 1st, 2012 |
|---|---|---|
| Generation | — | GeForce 600M |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x16 |
| Predecessor | — | GeForce 500M |
| Successor | — | GeForce 700M |
