7800gt clock speed question

fatalerror · April 9th, 2007, 03:51 AM

O.K. I have an evga 7800gt wich i thought ran at like 450/1.2. However after installing the optimized drivers,its telling me that the default clock speeds are 455/2.12. When I click "detect optimal freqencys" it sets them at 489/2.29. So decided to just try gaming with these settings just to test them a bit further and it seems to run BF2 and AA extremly well,while not even getting very hot. Now am I nuts or do these clock speeds seem WAY high. Also......the new driver set the temp threshold at 115C. That also seems high to me. I know that EVGA puts copper heatsinks in there GPU's but 115c? Can one of you guys please give me some more input on the 7800gt?

IModIntel · April 9th, 2007, 04:34 AM

That is because it is displaying your memory speeds in DDR Mode cut your memory clocks by half and you get the real speed of your card.

IModAmd · April 9th, 2007, 04:36 AM

He all right ! You have 2 modes For see the gDDr Speed(normal) or gddr3 speed

squall_leonhart · April 9th, 2007, 05:29 AM

Hi, this is becoz the clock multiplier in new drivers is broken, instead of doubling the speeds on 7800 cards it quadruples it, this was to fix a issue in clock speeds displaying on 7900 cards but it broke all cards older

my 5900xt for instance shows memory at 1.7ghz on the newer drivers

IModAmd · April 9th, 2007, 07:31 AM

The DRIVERS CAN'T CHANGE THE CLOCKS OF YOUR VIDEOCARD IT'S ONLY IF YOU CHANGE THE BIOS !!! ... So don't say that squall... Is Because the clocking of your device are on the chip (Bios) SO NO **** way an driver can change yours clocks !(This message are from IModAmd And IModIntel)

squall_leonhart · April 9th, 2007, 12:47 PM

Quote:

Originally Posted by IModAmd

The DRIVERS CAN'T CHANGE THE CLOCKS OF YOUR VIDEOCARD IT'S ONLY IF YOU CHANGE THE BIOS !!! ... So don't say that squall... Is Because the clocking of your device are on the chip (Bios) SO NO **** way an driver can change yours clocks !(This message are from IModAmd And IModIntel)

um actually it can

Coolbits exposes the Nvidia Clockrate utility which is contained in the Nvidia Control panel, allowing you to overclock from the driver, this is called Driver level overclocking.

overclocking via the cards bios is called Low Level Overclocking.

the problem this user is having is that the Nvidia Clockrate panel is showing double the values that it should, instead of showing 1.0ghz, is shows 2.0ghz

this was originally to fix the clock rate issue on Geforce 79xx and newer cards, as they had a different clock generator, which when viewed in the nvidia clockrate panel, would only appear at its single rate speeds.

IModAmd · April 9th, 2007, 04:51 PM

Lol if this change the clocks is THE NVIDIA DRIVERS ARE ONLY PIECE of crap and not really good architecture haha ^^ Welll if that's happens dude go with the olders drivers ... well i always says that the nvidia drivers are crap but in that if you wants your reals speeds why you dont go in low level overclocking ?(low level = bios or pcb) lol !

IModIntel · April 9th, 2007, 11:49 PM

Right. If you look in the dictionary under POO it says: Nvidia Drivers.

Mac Daddy · April 10th, 2007, 01:08 AM

Quote:

Originally Posted by squall_leonhart

um actually it can

Coolbits exposes the Nvidia Clockrate utility which is contained in the Nvidia Control panel, allowing you to overclock from the driver, this is called Driver level overclocking.

overclocking via the cards bios is called Low Level Overclocking.

the problem this user is having is that the Nvidia Clockrate panel is showing double the values that it should, instead of showing 1.0ghz, is shows 2.0ghz

this was originally to fix the clock rate issue on Geforce 79xx and newer cards, as they had a different clock generator, which when viewed in the nvidia clockrate panel, would only appear at its single rate speeds.

Nice post

IModIntel · April 10th, 2007, 01:51 PM

Uh-huh...