Geforce GTX 275 vs Radeon HD 4890
We recently learned that Nvidia will introduce a so called Geforce GTX 275 on G200b basis on April 6, and with that, opportunely to the product introduction of the HD 4890 graphic card. It shall line out the RV790 for now, which is more and more appearing as a half-hearted frequency update.
For this, Nvidia will keep using the GTX 260 216 with its 216 shader- and 72 texture units for basis. Only the frequency increases are ought to make the Nvidia chip get a move on.
A Nvidia partner confirmed us that the Geforce GTX 275 shall come up with 648/1476/1107 MHz. This would equal a percental frequency increase of 13, 19 and 11 per cent across from the GTX 260 216.
Empirical this should lead to about 15 per cent performance raise.
| . | GTX 260 | GTX 275 | GTX 285 |
|---|---|---|---|
| Technique | 55 nm | 55 nm | 55 nm |
| Transistors | 1400 Mio. | 1400 Mio. | 1400 Mio. |
| Chip frequency | 576 MHz | 648 MHz | 648 MHz |
| Shader frequency | 1242 MHz | 1476 MHz | 1476 MHz |
| Memory frequency | 999 MHz | 1107 MHz | 1242 MHz |
| TMUs | 72 | 72 | 80 |
| Shader units | 216 | 216 | 240 |
| Texel fill rate | 41,5 GT/s | 46,7 GT/s | 51,8 GT/s |
| Flops | 804 Gflops | 956 Gflops | 1062 Gflops |
No other source could confirm the information about the GTX 275 so far. So you have to handle it with certain retentions.
In re prices the Geforce GTX 275 will probably accept the price of the local Geforce GTX 260 216. But after all Nvidia will conform to the price of the HD 4890 and can probably still be changed of some US dollars shortly before the launch.
We expect more detailed information within the next weeks.
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Newsinformation
- Datum: 10.03.2009 - 19:16 Uhr
- Autor: Florian Spooren
- Kommentare: 7 (Thread)
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