ATI Mobility Radeon HD 4850 Mac Edition vs ATI Radeon 9800 XT Mac Edition
Graphics Processor
| GPU model | M98 | R360 |
|---|---|---|
| Architecture | TeraScale | Rage 9 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 150 nm |
| Number of transistors | 956 million | 117 million |
| Die size | 256 mm² | 218 mm² |
| GPU variant | — | R360 (215R9RBKA11F) |
Mobile graphics
| Release date | Aug 28th, 2009 | — |
|---|---|---|
| Generation | M9x (Mobility HD 4800) | — |
| Production | End-of-life | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 2 in our database | — |
| Predecessor | M8x | — |
| Successor | Manhattan | — |
Clocks
| GPU clock | 503 MHz | 412 MHz |
|---|---|---|
| Memory clock | 850 MHz 1700 Mbps effective | 365 MHz 730 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 256 MB |
|---|---|---|
| Memory type | GDDR3 | DDR |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 54.40 GB/s | 23.36 GB/s |
Render Configuration
| Shading units | 800 | — |
|---|---|---|
| TMUs | 40 | 8 |
| ROPs | 16 | 8 |
| Compute units | 10 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 8 |
| Vertex shaders | — | 4 |
Performance
| Pixel rate | 8.048 GPixel/s | 3.296 GPixel/s |
|---|---|---|
| Texture rate | 20.12 GTexel/s | 3.296 GTexel/s |
| FP32 (float) performance | 804.8 GFLOPS | — |
| FP64 (double) performance | 161.0 GFLOPS (1:5) | — |
| Vertex rate | — | 412.0 MVertices/s |
Dimensions & Outputs
| TDP | unknown | 60 W |
|---|---|---|
| Outputs | No outputs | 2x DVI |
| Slot width | — | Single-slot |
| Suggested PSU | — | 250 W |
| Power connectors | — | None |
API Support & Features
| DirectX | 10.1 (10_1) | 9.0 |
|---|---|---|
| OpenGL | 3.3 | 2.0 |
| OpenCL | 1.1 | — |
| Vulkan | — | — |
| Shader model | 4.1 | — |
| Pixel shader | — | 2.0 |
| Vertex shader | — | 2.0 |
Other Features
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 |
