ATI Mobility Radeon HD 4270 IGP vs NVIDIA GeForce 8600 GTS Mac Edition
Graphics Processor
| GPU model | RS880 | G84 |
|---|---|---|
| GPU variant | RS880M | G84-400-A2 |
| Architecture | TeraScale | Tesla |
| Manufacturing process | 55 nm | 80 nm |
| Number of transistors | 181 million | 289 million |
| Die size | 67 mm² | 169 mm² |
| Foundry | — | TSMC |
Integrated Graphics
| Release date | May 1st, 2010 | — |
|---|---|---|
| Generation | Radeon IGP (Mobility HD 4000) | — |
| Production | End-of-life | — |
| Interface | PCIe 1.0 x16 | — |
| Successor | Palm | — |
Clocks
| GPU clock | 590 MHz | 675 MHz |
|---|---|---|
| Memory clock | System Shared | 1008 MHz 2 Gbps effective |
| Shader clock | — | 1450 MHz |
Memory Configuration
| Memory size | System Shared | 512 MB |
|---|---|---|
| Memory type | System Shared | GDDR3 |
| Memory bus width | System Shared | 128 bit |
| Bandwidth | System Dependent | 32.26 GB/s |
Render Configuration
| Shading units | 40 | 32 |
|---|---|---|
| TMUs | 4 | 16 |
| ROPs | 4 | 8 |
| Compute units | 2 | — |
| SM count | — | 4 |
| Cache L2 | — | 32 KB |
Performance
| Pixel rate | 2.360 GPixel/s | 5.400 GPixel/s |
|---|---|---|
| Texture rate | 2.360 GTexel/s | 10.80 GTexel/s |
| FP32 (float) performance | 47.20 GFLOPS | 92.80 GFLOPS |
Dimensions & Outputs
| Slot width | IGP | Single-slot |
|---|---|---|
| TDP | unknown | 75 W |
| Outputs | No outputs | 2x DVI |
| Power connectors | None | 1x 6-pin |
| Suggested PSU | — | 250 W |
| Board number | — | P401 |
API Support & Features
| DirectX | 10.1 (10_1) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.0 | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 4.0 |
| CUDA | — | 1.1 |
Other Features
Graphics Card
| Release date | — | Sep 21st, 2007 |
|---|---|---|
| Generation | — | GeForce 8 |
| Production | — | End-of-life |
| Interface | — | PCIe 1.0 x16 |
| Reviews | — | 183 in our database |
| Predecessor | — | GeForce 7 PCIe |
| Successor | — | GeForce 9 |
