NVIDIA GeForce 8800GTX/GTS

[Haste]

No ten 3DM05 mi prijde dost slaby, tam bych cekal aspon 24xxx. To by bylo jenom o 1/3 vic nez mam ted s X1900XT

[Masster]

A je to GTX nebo GTS? (nebo fake)

No dalsi utrzek z B3Df

8800GTX 599USD
8800GTS 499USD

[Q]

ne ne...to je pekna hovadina....

[no-X]

3DMark 2005 je benchmark pro SM2.0, kterej je vertex fetch limited a CPU limited. Tak nechápu, proč se takovýmu výsledku divíte. Mě se naopak ty výsledky zdají velice optimistické.

[Masster]

No me se hlavne libi ta cena, pokud by sla opravdu sehnat za nejakych cca 14.000,--, tak bych ji hned bral
Bohuzel to bude zase tak, ze za cenu GTX v USA dostanu u nas GTS

[Q]

me to pride trochu moc...kdyz tady maj X1950XTX chlazenou dusikem skoro na 1GHz GPU, 4,5 GHz CPU a dali "jen" 17k.... http://www.vr-zone.com/index.php?i=3942

nicmene je to mozny...sem moc zvedavej na odpoved R600...

[Haste]

3DMark 2005 je benchmark pro SM2.0, kterej je vertex fetch limited a CPU limited. Tak nechápu, proč se takovýmu výsledku divíte. Mě se naopak ty výsledky zdají velice optimistické.

S pretaktovanym Conroe na 3.0+GHz, bych rozhodne netvrdil, ze je 3DM05 CPU limited
A cos myslel onou vertex fetch limited? Vertex fetch je snad o pristupu VS3.0 do texturove pameti, to tady nema co delat.

[no-X]

Haste: To by byl texture-fetch, ne vertex fetch

If there's one thing that defines 3DMark05's performance, it's that it's heavily geometry limited in a couple of ways. With over 1M vertices per scene most of the time, that's a whole lot of big (which seems to be the key) vertex buffer objects to be locked in memory and pushed over the graphics interconnect bus to the card, as geometry changes during the game tests.

Secondly, when those buffers get to the card, the IHVs are seeing usage patterns that put the buffers all over card memory, not just in one place. So the cards become vertex fetch limited, as the vertex engines wait for vertices to be streamed out of card memory and into their input buffers, by the driver which points to locations in card memory for the vertex engines to work on.

The limitation in 3dmark05 isnt exactly that its CPU process limited. But vertex setup limited. Since 3dmark05 pushes so many polygons. The Graphics cards are now having to wait on the CPU to setup vertex data. So yes this is a CPU limitation thats going to become more and more common as graphic setups continue to get faster.

If your CPU is fast enough to feed the vertex setup. It will become a GPU limitation again. But at the rate GPUS are progressing and the rate CPUS are progressing. It seems likely that single cards will be limited by the CPU shortly. Also keep in mind Game Test 3 does not have this problem and does scale with fillrate. While Game Test 1 and 2 do not.

http://www.rage3d.com/board/archive/...-33820422.html

Hi Canyon is fill rate limited whilst GT1 and Gt2 are vertex fetch limited , in other words Gt3 is still limited by the video card clocks more.

Regards
Andy

3DMark05 is pretty vertex (or rather, vertex fetch) limited.

[Haste]

No, i tak porad trvam na tom, ze 19xxx je malo. Prece nemuzou cekat, ze pocet polygonu ve hrach bude takto stagnovat. Podle meho 1 milion vertexu na scenu =< 333 tisic polygonu opravdu NENI moc. Jestli sou ty testy spravne, potom rikam, ze VertexFetch a VertexTransform engine jsou v G80 pomerne slabe.