Radeon HD 4890 gegen Radeon HD 4850
Die technischen Daten der Radeon HD 4890 und der Radeon HD 4850 im Vergleich:
| Name | Radeon HD 4890 | Radeon HD 4850 |
|---|---|---|
![]() | ![]() |
|
| Chipsatz | RV790 | RV770 |
| Transistoren | 959 Mio. | 956 Mio. |
| Fertigung | 55 nm | 55 nm |
| Die-Größe | 282 mm² | 256 mm² |
| Chiptakt | 850 MHz | 625 MHz |
| Shadertakt | 850 MHz | 625 MHz |
| Pixel-Pipelines | - | - |
| Shadereinheiten | 160 (5D) | 160 (5D) |
| Vertex-Shader | - | - |
| Unified-Shader | 800 | 800 |
| TMUs | 40 | 40 |
| TAUs | 40 | 40 |
| ROPs | 16 | 16 |
| Pixel-Shader Vers. | 4.1 | 4.1 |
| Vertex-Shader Vers. | 4.1 | 4.1 |
| DirectX Vers. | 10.1 | 10.1 |
| OpenGL Vers. | 3.3 | 3.3 |
| Speichertyp | GDDR5 | GDDR3 |
| Speichermenge | 1024 MB | 512 MB |
| Speichertakt | 1950 MHz | 993 MHz |
| Speicherinterface | 256 Bit | 256 Bit |
| GFlop/s | 1360 GFLOP/s | 1000 GFLOP/s |
| Pixelfüllrate | 13600 MPix/s | 10000 MPix/s |
| Texelfüllrate | 34000 MTex/s | 25000 MTex/s |
| Bandbreite | 124.8 GB/s | 63.5 GB/s |
| TDP | 190 Watt | 110 Watt |
| Anschlüsse | 2x DVI, S-Video | 2x DVI, S-Video |
| Multi-GPU | CrossFireX | CrossFireX |
| Interface | PCI-E 2.0 x16 | PCI-E 2.0 x16 |
| Stromanschluss | 2x 6-Pin PCI-E | 1x 6-Pin PCI-E |
| Vorstellung | 2. Quartal 2009 | 3. Quartal 2008 |


