What's more important to OC?

[SneakyStuff]

Text says it all, I just want your thoughts, based on experience.

 

[reallyscrued]

depends on what res u want to game at. at 680x480, mem bandwidth wouldnt even matter. when higher res'es and more AA and AF are introduced, it matters more. Core speed just allows more vertices and pologons to be created, so fps will only benefit from corespeed if memory isnt already being bottlenecked.

 

[VIAN]

6800 is a perfect example.

 

[Marsumane]

It totally matters depending on the card. Say u have a 64 bit memory bus card. I reccomend ocing the memory WAY more then the core. It will result in a MUCH greater difference because the card itself is bottlenecked by the memory bus. Other cards, that are more ballanced, benefit more from core, or more equally from either a memory oc or a core oc.

 

[JBT]

With my 6800GT the core gives me more perfomance. Even though it is barely faster Oced than not it is still nice to get that much more. OCing the memory does little to nothing for my card.

 

[PrayForDeath]

Depends on the card, but if both were equal I start with the core.

 

[bunnyfubbles]

GPUs have become a lot more efficient with the bandwidth they recieve, so I'd vote for the core. Back in the day of the bandwidth starved GF2 I'd vote memory...

 

[Matthias99]

Can there be a "depends on card/game/situation" option?

If you're running with lots of AA/AF, or with high in-game texture and detail settings, memory bandwidth is likely to be throttling all but the very fastest cards out there today (the ones with 500Mhz+ GDDR3). Without AA/AF, and at lower resolutions and detail settings, pixel fillrate (ie, core speed) becomes the limiting factor.

With my current card (a 9800Pro), running with moderate AA and AF at 1280x960/1024, memory overclocks help more than core overclocks, although both improve performance.

 

[apoppin]

Originally posted by: Matthias99
Can there be a "depends on card/game/situation" option?

If you're running with lots of AA/AF, or with high in-game texture and detail settings, memory bandwidth is likely to be throttling all but the very fastest cards out there today (the ones with 500Mhz+ GDDR3). Without AA/AF, and at lower resolutions and detail settings, pixel fillrate (ie, core speed) becomes the limiting factor.

With my current card (a 9800Pro), running with moderate AA and AF at 1280x960/1024, memory overclocks help more than core overclocks, although both improve performance.

is it ok to agree with you (this time)?

(i do)

:roll:

 

[kamranziadar]

Both matters but i think Core will get some edge over Memory.

 

[DAPUNISHER]

both

 

[Travis6586]

My 6800 GT is usually overclocked @ 401/1100 MHz. When I leave the core the same, and increase the memory to 1200 MHz, I FPS in Doom 3 goes from 69 to 70. So I gain 1 FPS from a 100 MHz memory overclock.

And that's with Doom 3 running at 1280x1024 with no AA or V-Sync. Everything else is maxed out.

 

[PrayForDeath]

Originally posted by: Travis6586
My 6800 GT is usually overclocked @ 401/1100 MHz. When I leave the core the same, and increase the memory to 1200 MHz, I FPS in Doom 3 goes from 69 to 70. So I gain 1 FPS from a 100 MHz memory overclock.

And that's with Doom 3 running at 1280x1024 with no AA or V-Sync. Everything else is maxed out.

What happens when you raise your core clock to 401 and leave the memory at stock speed? How much FPS do you gain?

 

[Travis6586]

What happens when you raise your core clock to 401 and leave the memory at stock speed? How much FPS do you gain?

I get 67.8 FPS in Doom 3. If I leave everything at stock speed (350/1000 MHz), then I get 66.4 FPS. So, by increasing the core from 350 MHz to 401 Mhz, I gain 1.4 FPS.

 

[jswjimmy]

it depends on the card. like my old gf2 the ram gave it more fps than the core did.
man i had that sucker running at 245/190(the stock was 176/168) with no mods.

but with my gf4 ti4400 i see that the core an the ram are about equal.
the ti4400 overclocks well to, i now have that running at 301/650(over the stock 275/550)

 

[nOObBooB]

HRmm from my experence wiht my old 9800 pro, oc the memory helped alot more compared to oc the gpu. I guess it depends on your card, really each card is different, i would experiment and settle with a happy meidum.

 

[Travis6586]

Here's an interesting article about overclocking video cards. Basically, overclocking the GPU results in a higher 'average framerate'. However, the 'minimum framerate' lowers as well when overclocking the GPU. However, when the RAM on the video card is overclocked, the 'average framerate' increases along with the 'minimum framerate'. Just something interesting to note. Here's the article:

http://www.overclockers.com/articles1118/