AMD FireStream 9270 vs ATI Radeon HD 4870
What is the difference between AMD FireStream 9270 and ATI Radeon HD 4870. Find out which graphics card has better performance.
Graphics Processor (GPU)
| RV770 | GPU Name | RV770 |
| RV770 XT | Model number | RV770 XT (215-0669049) |
| TeraScale | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 55 nm |
| 956 million | Transistors | 956 million |
| 256 mm² | Die Size | 256 mm² |
Graphics Card
| Nov 13th, 2008 | Release Date | Jun 25th, 2008 |
| FireStream | Family | Radeon R700 (HD 4800) |
| End-of-life | Production | End-of-life |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 2 GB | Memory Size | 512 MB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 115.2 GB/s | Bandwidth | 115.2 GB/s |
Performance
| 12.00 GPixel/s | Pixel fillrate | 12.00 GPixel/s |
| 30.00 GTexel/s | Texture fillrate | 30.00 GTexel/s |
| 1,200 GFLOPS | FP32 (float) performance | 1,200 GFLOPS |
| 240.0 GFLOPS (1:5) | FP64 (double) performance | 240.0 GFLOPS (1:5) |
Clock Speeds
| 900 MHz 3.6 Gbps effective | Memory Clock | 900 MHz 3.6 Gbps effective |
| 750 MHz | GPU Clock | 750 MHz |
Render Config
| 800 | Shading Units | 800 |
| 40 | TMUs | 40 |
| 16 | ROPs | 16 |
| 10 | Compute Units | 10 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 241 mm 9.5 inches | Length | 241 mm 9.5 inches |
| 111 mm 4.4 inches | Width | 111 mm 4.4 inches |
| 38 mm 1.5 inches | Height | 40 mm 1.6 inches |
| 160 W | Thermal design power (TDP) | 150 W |
| 450 W | Suggested PSU | 450 W |
| 1x DVI | Display Connectors | 2x DVI 1x S-Video |
| 2x 6-pin | Power Connectors | 2x 6-pin |
API support
| 10.1 (10_1) | DirectX | 10.1 (10_1) |
| 3.3 | OpenGL | 3.3 |
| 1.1 | OpenCL | 1.1 |
| N/A | Vulkan | N/A |
| 4.1 | Shader Model | 4.1 |