overlcoking but no gain??

[lmimmfn]

Originally Posted by (IRE)Wolfman

lol

[Dublin_Gunner]

Wolf, your score is low for a GTX


Damien666, you have your core OC'd by 8%~, and the shaders by a mere 4%~, what exactly did you expect?? It seems to me you got pretty much a linear increase with your FPS & OC settings.

Your everage FPS increased by just under 6%. Seems right on the money to me......

[tom_host]

ok so:
c2d E6750@2660mhz + bfg 8800gts 320@550/1800
mark 06 - 9165

c2d E6750@2660mhz + bfg 8800gts 320@651/2000
mark 06 - 10516

thats all right i think but

c2d E6750@2660mhz + gigabyte 8800gts 512@650/1940
mark 06 - 11100, mark 05 - 16600

c2d E6750@2660mhz + gigabyte 8800gts 512@770/2100
mark 06 - 11600, mark 05 - 16900

dont understand why the new gts have so low differences between stock and oc ....

[Dublin_Gunner]

Well, you're only showing the core & memory clock. What have you clocked the shaders at?

You're probably seeing CPU limitation. As the card is clocked failry high, its waiting for data from the CPU, hence the minimal increase.

Your CPU is clocked fairly low for a C2D, you should clock it to around 3.4Ghz, and you'll see a nice bump in your scores.

[tom_host]

shader is automaticly raising with gpu clock ... so you think that the cpu at stock speed 2,66 is decraising the sm2/sm3 score ? ... well okey then .. and thank yo

[Dublin_Gunner]

Originally Posted by tom_host

shader is automaticly raising with gpu clock ... so you think that the cpu at stock speed 2,66 is decraising the sm2/sm3 score ? ... well okey then .. and thank yo

You can clock the shader domain seperately, and this is where you'll see the biggest boost inperformance.

The CPU affects the SM2/SM3 score by not providing geometry data quickly enough to the GPU, hence the GPU is waiting to do work, wasting clock cycles.


Even a C2D will bottleneck the card, when clocked only at 2.6Ghz

[tom_host]

okey ... thank you very much for usefull info ... ill try ...

[tom_host]

it worked ... thanks

[Dublin_Gunner]

No problem.

I noticed something strange about your overclock.

Why did you drop the multi to raise the FSB?? That CPU will EASILY do 3.2 to3.4Ghz, with only a moderate increase in voltage (my E6400 does 3.4Ghz with 1.375V) What divider is your ram on? 1:1?

Up the multi to 7, that will give you a nice 3.25Ghz overclock, but you may need to raise the core voltage to around 1.37 or so.

You'll see your machine fly then.

[mrkool]

Originally Posted by Dublin_Gunner

No problem.

I noticed something strange about your overclock.

Why did you drop the multi to raise the FSB?? That CPU will EASILY do 3.2 to3.4Ghz, with only a moderate increase in voltage (my E6400 does 3.4Ghz with 1.375V) What divider is your ram on? 1:1?

Up the multi to 7, that will give you a nice 3.25Ghz overclock, but you may need to raise the core voltage to around 1.37 or so.

You'll see your machine fly then.

raise the core voltage ? he is already running it at 1.5.

[Dublin_Gunner]

Originally Posted by mrkool

raise the core voltage ? he is already running it at 1.5.

I said 'raise' it to 1.37v if you read correctly., i.e. raise it from stock. CPU-Z could be reporting the voltage incorrectly.

It does not need to be anywhere near 1.5V

[tom_host]

Originally Posted by Dublin_Gunner

No problem.

I noticed something strange about your overclock.

Why did you drop the multi to raise the FSB?? That CPU will EASILY do 3.2 to3.4Ghz, with only a moderate increase in voltage (my E6400 does 3.4Ghz with 1.375V) What divider is your ram on? 1:1?

Up the multi to 7, that will give you a nice 3.25Ghz overclock, but you may need to raise the core voltage to around 1.37 or so.

You'll see your machine fly then.

its eist ... ist overclocked to 3720mhz but in load only it raised to 8x ... memory are 1:1 so they doing 930mhz at cl5

the voltage 1,5v is cpu-z reading corectly imho ... 1.37v is for my cpu low and didnt pass mark06 at even 3,6ghz

[Dublin_Gunner]

Originally Posted by tom_host

its eist ... ist overclocked to 3720mhz but in load only it raised to 8x ... memory are 1:1 so they doing 930mhz at cl5

the voltage 1,5v is cpu-z reading corectly imho ... 1.37v is for my cpu low and didnt pass mark06 at even 3,6ghz

Ah EIST, that explains it.

lol I forgot the E6750 has a low multi and 333fsb!