TPU GPU review irregularities (question)

[pmrdij]

like many i come around to TPU for video card reviews more than anything else. W1zzard you are a walking god in my GPU modding book but i need an explanation to the following. below is your recent Sapphire HD 4850 review numbers vs. your Zotac 8800 GTS 512 numbers in S.T.A.L.K.E.R. SHoC @ 16xx by 1xxx w/ 4xAA and 16xAF:

in comparison of these two reviews some numbers don't match up and i am curious as to why:

8500 GT 256MB
Sapphire HD 4850 review FPS: 8.2
Zotac 8800 GTS 512 review FPS: 22.8

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7900 GTX 512MB
Sapphire HD 4850 review FPS: 26.7
Zotac 8800 GTS 512 review FPS: 78.7

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HD 2900 XT 1024MB
Sapphire HD 4850 review FPS: 48.2
Zotac 8800 GTS 512 review FPS: 109.1

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HD 3870 512MB
Sapphire HD 4850 review FPS: 48.6
Zotac 8800 GTS 512 review FPS: 110.2

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8800 GT 512MB
Sapphire HD 4850 review FPS: 50.3
Zotac 8800 GTS 512 review FPS: 134.6

is this all due to the different screen resolution heights? i ask as i am gearing up to leave the wonderful world of 1280x1024 for 16xx+.

- Robert (pMr)dIj

 

[ShadowFold]

8800GTS uses a E6550 at 2.3ghz and the 4850 uses a 8400 at 3.6ghz

 

[pmrdij]

8800GTS uses a E6550 at 2.3ghz and the 4850 uses a 8400 at 3.6ghz

yes you are correct:

Zotac 8800 GTS 512MB review uses:
Intel Core 2 Duo E6550 2.33 GHz
(Conroe, 2x 2048 KB Cache)

Sapphire HD 4850 512MB review uses:
Intel Core 2 Duo E8400 @ 3.6 GHz
(Wolfdale, 6144 KB Cache)

assuming you were pointing to the CPU as the cause of this --> if the CPU involved was a bottleneck in the test system we would see lower FPS on the E6550 system with the same cards rather than the reverse as above.

- Robert (PmR)DeathInJune

 

[JC316]

In that case then, the 4850 should be even faster than the GTS. It's probably a driver issue or something like that. Stalker is a buggy game anyway.

 

[W1zzard]

we changed the stalker rendering settings at some point. also the cpu was upgraded, bios upgraded, xp fixes

 

[pmrdij]

In that case then, the 4850 should be even faster than the GTS. It's probably a driver issue or something like that. Stalker is a buggy game anyway.

well the point isn't the results of the 4850 but rather the cards that appear in both reviews running drastically slower in the review of Sapphire's HD 4850 512MB as compared to the previous review of the Zotac 8800 GTS 512MB. just trying to figure out why this occurred.

we changed the stalker rendering settings at some point.

ok i can see this being the cause so that answers that. just had to be sure that there wasn't something between 1050px and 1200px that produced such a drop before i went out and got my new primary display. thanks!

- Robert (PmR)DIJ