Interesting look at 3dMark05 and how CPU bound the 7800 GTX is - especially in SLI mode.
http://www.vr-zone.com/?i=2367&s=12
http://www.vr-zone.com/?i=2367&s=12
When Tuesday does the G70 NDA expire?
- Thread starter digitalwanderer
- Start date
Wow, I haven't seen CPU OCing affect 3dm like that since 3dm2k1se! It kind of makes me nostalgic.g__day said:
Kombatant
Regular
g__day said:
I can verify this to the extreme... in my home system (Athlon64 3200+ @ 200x10=2GHz which means not overclocked, DFI Lanparty SLI-DR, 1GB RAM), a Geforce 7800 gives me 6777 3DMarks.. I am still investigating whether something's wrong with my setup, but I don't think I'll find anything...
edit: I was getting 6240 with a Radeon X850 XT overclocked to 540/580 btw.
[Brick_top]
Newcomer
egore said:
The graphic bellow the one with the CPU overclocking has the GPU overclocking and there is almost no diference between scores.
Simple question time: vertices are fetched via the CPU, the system bus (system RAM via AGP/PCIe), the vertex shaders, the card's RAM (via crossbar)? Given the CPU scaling, I'm guessing they're fetched, or at least produced, by the CPU?
I wonder what score a P4 system gives.
I wonder what score a P4 system gives.
Pete said:Simple question time: vertices are fetched via the CPU, the system bus (system RAM via AGP/PCIe), the vertex shaders, the card's RAM (via crossbar)? Given the CPU scaling, I'm guessing they're fetched, or at least produced, by the CPU?
I wonder what score a P4 system gives.
For the older hardware case, as far as I'm aware: the vertex buffers are placed all over card memory by the app, which makes it harder for the VFE to fetch efficiently than if they were in contiguous blocks. Not sure if there's scope for the buffers to actually fragment, but they're very large and often not placed near each other.
So it's the pull out of card memory to feed the vertex hardware where you're limited in 05, on most hardware.
With the 7800 SLI case it appears you're not completely VFE bound any more, you're more geometry production bound, getting the verts produced on the CPU before throwing them over the bus. The VFE unit did get tweaked for G70, and with SLI that's probably combining to shift where you're bound to somewhere else (at least partly).
Be nice to see 6800 SLI in the same tests, to confirm (at least G70 vs NV40).
Cheers geo!
JoshMST said:
Considering you're obvious insider info. I'm afraid I'm going to have to exclude you. How do I know you havent been tipped off by insiders at ATI and Nvidia?
wireframe said:
No Game Test 2 is the forest. Flying ship with all the water and the beast is game test 3.
JoshMST said:
Unknown Soldier
Veteran
g__day said:
TechReport also have their CPU bound test.
http://www.techreport.com/reviews/2005q2/athlon64-fx57/index.x?pg=15
Similar threads
