4870 Overclocking Thread

[Blkout]

Did you rename FurMark executable in 8.8 to something else?

I thought that only applied to the official 8.8's becuase it doesn't affect my temps or rendering speed using the beta 8.52 drivers. Temps didn't change at all when the .exe was renamed.

[Blkout]

Idle temps for reference...

[dejanh]

I thought that only applied to the official 8.8's becuase it doesn't affect my temps or rendering speed using the beta 8.52 drivers. Temps didn't change at all when the .exe was renamed.

I asked about 8.8

[Blkout]

I asked about 8.8

I'm not using the official 8.8's, but technically even the beta's I'm using are 8.8's. That's why I made that statement so there was no confusion.

[clee]

How many more times do I have to point out my first card died stock?????????? Lets make it 10 now.

I don't mean to stir the pot again but just wanna chime in the discussion so new comers may aware.

Dnottis, you ran the card at stock speed alright but you did modify the stock cooling.

The stock cooler imho is perfectly fine to handle the VRM heat but @ 40% fan speed it's a bit too noisy so I bited the bullet to spring for a FC block instead. My experience is similar to Blkout with about 40C drop across the board.

I've been using GPU blocks for years and never keen on FC block but in the 4870 case, it's well worth it. It might be the "only" option really, if you don't wanna use the stock cooler. Just my 2 cents.

[CBird28]

my hd4870 512mb is having problems playing grid. 1680x1050 everything high and NO aa, the fps often hits 20!!.. after playing about with the settings, i can get a 60fps which stutters to 10/20fps when going around corners or looking from the rear etc

whats people getting on grid with a similar setup?

[Xcel]

my hd4870 512mb is having problems playing grid. 1680x1050 everything high and NO aa, the fps often hits 20!!.. after playing about with the settings, i can get a 60fps which stutters to 10/20fps when going around corners or looking from the rear etc

whats people getting on grid with a similar setup?

Have you reinstalled windows since your upgrade?

I'm getting 50-60fps with occasional 35-40fps dips at 2560*1600 2xaa. No stuttering at all.

Something's wrong with your system

[dnottis]

It depends on the view you are using too.

[Unrealer]

my hd4870 512mb is having problems playing grid.

I run it @ 1680x1050 AAx4 Ultra and getting 50-80fps.

[xMrBunglex]

i run GRID at max settings with 4xAA on a single card @ 1920x1200 and get at least 60 fps. make sure you clean out old drivers.

i'm starting to wonder if Nvidia drivers intentionally leave something behind on computers to make ATI cards lag. it could be their way of killing the competition :P

[fatguy1992]

The highest I'v got the core to is only 800MHz and 4.4GHz on the vRAM, just waiting for it to be a bit cooler

[CBird28]

iv formatted since the upgrade yeah

im going to try reinstalling grid now

another prob iv got is i cant right click on any desktop icons, it comes up with "explorer has stopped working" lol and if i highlight and press the del key, the same happens

[fatguy1992]

Here's some screen shots of what i'v done so far, i think it could go higher.





PS medium is Crysis is Very High for me

[Blkout]

Here's some screen shots of what i'v done so far, i think it could go higher.

PS medium is Crysis is Very High for me

You really should run your bench loop at least 3 times since the first run is usually always the lowest due to caching. Unfortunately, your CPU is holding you back considerably at 3GHz.

[fatguy1992]

You really should run your bench loop at least 3 times since the first run is usually always the lowest due to caching. Unfortunately, your CPU is holding you back considerably at 3GHz.

I was short I time so I only ran once, also I wasn't looking for awesome performance, I was trying to show it could run Crysis .

My FPS @ 3.0GHz is exactly the same as 3.6GHz, I tested it.

[TruePlaya]

Hi im new one.

Just bought Club3D HD4870 Overclocked Edition week ago cuz of the Zerotherm Cooler on it. Card is quite cooler than with stock cooler.
GPU OC is fine 860Mhz...but this card memory seems to be bad cant oc over 1050Mhz (getting artifacts in 3Dmark06)...but HD4870 stock cards can get 1200Mhz...both should be Qimonda chips memory...so whats the problem can be that HD4870 stock getting better memory OC than HD4870 with Zerotherm coooler? Does anyone know something about that??

[xMrBunglex]

the memory is only rated at 1000 MHz, so anything over that is just luck of the draw. the good news for you is that a bigger memory OC probably won't increase your card's performance at all; they already have plenty of memory bandwidth.

iirc, your memory IC's are bare with no heatsinks on them. it wouldn't be a bad idea to put RAMsinks on your memory anyway. whether it helps them OC farther or not doesn't really matter.

[Blkout]

My FPS @ 3.0GHz is exactly the same as 3.6GHz, I tested it.

That makes no sense at all. Every test I've run in Crysis shows improvements with as little as 100Mhz clock increases on the CPU. Very hard to imagine that a 600MHz increase shows no improvement.

[fatguy1992]

I know it doesn't make sense to me either, even at 2.4GHz to 3.0GHz the FPS only increases by 1 at the most

[TruePlaya]

the memory is only rated at 1000 MHz, so anything over that is just luck of the draw. the good news for you is that a bigger memory OC probably won't increase your card's performance at all; they already have plenty of memory bandwidth.

iirc, your memory IC's are bare with no heatsinks on them. it wouldn't be a bad idea to put RAMsinks on your memory anyway. whether it helps them OC farther or not doesn't really matter.

U mean to put heatsinks there???

[Pikkuhippi]

I have Sapphire HD 4870. I have STOCK Fan and no voltmods. I have only flashed bios. However I cant seem to overclock this card at all! even at 800MHz Core clock I start seeing artifacts. I cant even get memory clock to 1000MHz to get it to work stable. I have tried Diamond XOC BE bios and ASUS TOP Bios. But neither of them have really changed anything, instead I think ASUS one just made it worse. Any Ideas guys? Maybe you know whats wrong? Im pretty sure its not heat either, and many other guys have recieved better clocks with same card and same fan. I have manually set fan speed to 38%. So Any help would be appreciated. Thanks alot guys...


BTW. Im Using latest RivaTuner. (And same results in CCC too) + Using Ati Drivers 8.8 OFFICIAL

[xMrBunglex]

U mean to put heatsinks there???

ahh, i stand corrected. i was just going off my memory and thought your card was one of the designs that had bare RAM chips. that plate with the fan over it probably provides plenty of cooling.

[TruePlaya]

ahh, i stand corrected. i was just going off my memory and thought your card was one of the designs that had bare RAM chips. that plate with the fan over it probably provides plenty of cooling.

Yeah i think is nice cooler and it s suppose to let OC way better than with stock cooler...but i cant get only 1050Mhz from memory

[Caveman787]

The ram isn't exactly well cool...the heatsink blocks alot of the fans airflow from reaching the pcb and ram.

Also those ramsinks are vary thin, I believe if you could fit aftermarket aluminum ramsinks, you'd likely be able to overclock your memory a tad more to 1100 aka 4400.

But pushing it beyond that isn't known to be safe, as the memory is only speced to run at 1000 aka 4000 max.

[B.E.E.F.]

Should I be getting 50-60fps in Mass Effect? All settings at max. No antialiasing.