GPU client "PPD tuning" - Overclock.net

**CL3P20** · 11-06-08

This thread will be dedicated to the pursuit of PPD, and related to the shader, core and memory speed gains to be realized from all types of GPU cores.

Please post your clock speeds, GPU type [with amount of mem and SP's] along with the amount of PPD gained from your OC adjustments.. and any mods/BIOS flashing you may have used

Here are the shader straps for the G80 & G92 core:

Quote:

1512-1566-1620-1674-1728-1782-1836-1890-1944-1998-2052-2106-2214-2268-2376

For those that know of the hardware monitor in RivaTuner..if you have a GPU core other than a G92..please list a few of the straps as seen by RivaTuner.
*If everyone will stick to the same format..this will much easier to keep updated!

This is an attempt to track the PPD gains seen [if any] from core and memory speed increases..as well as charting shader strap gains for # of SP's.
------------------------------------------------------

From the testing I have done myself, with the 8800GS and GT.. each shader strap, will bring ~100 PPD of additional performance.. Core and Memory speeds will be the main focus of my research, as a lot of folks [including myself] are still in the dark on how tweaking these figures can improve PPD for your GPU.

Thank you for your posts..screenies are welcome. I will update the thread as often as I can, with newly submitted results.
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ATi

4850
Visiontek 800 sp's
core:660
mem:1075
PPD:3300

HIS 800sp's
Core:840mhz
Mem:1150mhz
PPD:4200

4870:
Visiontek 800sp's
Core:700mhz
Mem:750mhz
PPD:3300

Nvidia

8600GT/SC
Core:576Mhz
Mem:750Mhz
Shader:1300Mhz
PPD:1768.26

EVGA 64sp's
Core:625Mhz
Mem:800Mhz
Shader:1400Mhz
PPD:1943.89

8800GS
EVGA 384 96sp's
core:700
shader strap:1674
mem:800
PPD:5080

EVGA 384 96sp's
core:700
shader strap:1674
mem:900
PPD:5120

EVGA 384mb 96sp's
core:808mhz
shader strap:1944mhz
mem:977mhz
PPD:5924
GPUv mod

EVGA 384mb 96sp's
core: 808mhz
shader strap: 1998mhz
mem: 977mhz
PPD: 6010
GPUv mod

EVGA 384mb 96sp's
core: 828mhz
shader strap: 1944mhz
mem: 993mhz
PPD: 6010
GPUv mod

EVGA 384mb 96sp's
core:808mhz
shader strap:1998mhz
mem:989mhz effective [980mhz set]
PPD:6098
GPUv mod

EVGA 384mb 96sp's
core:808mhz
shader strap:2052mhz
mem:993mhz effective [990mhz set]
PPD:6198
GPUv mod

EVGA 384mb 96sp's
core:848mhz
shader strap:2105mhz
mem:1000mhz
PPD:6283
GPUv mod

8800GT
EVGA 112sp's
core:694
shader strap:1728
mem:1000
PPD: 5600

EVGA 112sp's
core:745
shader strap:1890
memory:1007
PPD:6010

EVGA GT/SC 112sp's
core:720
shader:1889
memory:950
PPD:6010

XFX 112sp's
core:720
shader:1889
memory:975
PPD:6189

EVGA dual slot 112sp's
cor:751
shader strap:1890
memory:900
PPD:6189

8800GTS
EVGA 640mb 112sp's
core:620
shader strap:1620
memory:1007
PPD:5760

EVGA 8800GTS 128sp's
core:670mhz
shader strap:1825mhz
mem:972mhz(stock)
PPD:5900-6100

9800GT
EVGA 512mb 112sp's
core:720
shader strap:1836
memory:1000
PPD: 4700
WU: unknown/5903

Hueristic · 11-06-08

You need to add mods applied also.

I have to completely type out the link to my screenie so this will take a minute.

EVGA 8800GS 394mb X2 (Both have identical results so far and are on seperate machines with amd 2800+/3200+ uni's 128mb/1gig mem respectively, XpProSP3)
Stock Cooling
Core 700
shader 1750 (locked to core) unable to increase further even when lowering core and mem to stock levels
Memory 1000 (just popped them up from 900 and got +100 ppd but also recieved unstable machine error so still monitoring)

http://www.overclock.net/gallery/sho...=18280&cat=500

**CL3P20** · 11-06-08

Quote:

Memory 1000 (just popped them up from 900 and got +100 ppd but also recieved unstable machine error so still monitoring)

I too have noticed this..but memory uses so much current! Maybe mem vmod's are next on the list for my GPU's..

Make sure to post with your stable results..if any increases were seen from your mem OC, please.

Hueristic · 11-06-08

Quote:

Originally Posted by CL3P20

I too have noticed this..but memory uses so much current! Maybe mem vmod's are next on the list for my GPU's..

Make sure to post with your stable results..if any increases were seen from your mem OC, please.

It's very wierd as I didn't notice any real ppd increase from 800 to 900 but I didn't see any heat increase either so I left it at 900. But just for s&g I popped it up yesterday and saw the increase. I'm kinda baffled on whats going on here. I'm thinking that I'll have to check the setting for a period of time and keep the averages. Looks like alot of work ahead.

Also typed out the url for the screenine but it would not take as an image so I had to place it as a url. Hopefully I'll get this comp functional again sometime today. Doing a partition copy on my htpc/backup browser right now and have to do a PS switch before I can get onto this one. and can't take anymore pain meds for another hour and 1/2. So anyway I'll take another screenie then and see if the increase held over time.

Hueristic · 11-06-08

Also post straps for GS please.

**CL3P20** · 11-06-08

..at teh office

..else I would.. will edit the OP and post when I get back to the man-cave.

Hueristic · 11-06-08

Quote:

Originally Posted by CL3P20

..at teh office

..else I would.. will edit the OP and post when I get back to the F0LD-Asylum.

Fixed that.

usapatriot · 11-06-08

Visiontek 4850
Core: 700mhz
Mem: 750mhz
PPD: 3300

I thought I'd be getting PPD near 8800GS levels, guess not.

ZealotKi11er · 11-06-08

8800GS 384
core: 700
shader strap :1700
mem: 900
PPD: 5120

8800GS 384
core: 700
shader strap :1700
mem: 800
PPD: 5080

**CL3P20** · 11-06-08

@ usapatriot - I need core strap information for your GPU.. do you have a copy of RivaTuner installed on your rig? *RivaTuner is the only GPU program I have ever seen to display the GPU strap's correctly..

For all who post.. if you are not folding with a G92 core ..can you please list the shader strap, as seen by the Hardware Monitor in RivaTuner?! This will alleviate a lot of unnecessary info for the thread updates.

11-06-08	#2 (permalink)
Hueristic Need a New Protocol Join Date: Jul 2008 Location: Bottom_Of_A_Bottle Posts: 7,758 Rep: 317 Unique Rep: 214 Folding Team Rank: 65 Trader Rating: 2	You need to add mods applied also. I have to completely type out the link to my screenie so this will take a minute. EVGA 8800GS 394mb X2 (Both have identical results so far and are on seperate machines with amd 2800+/3200+ uni's 128mb/1gig mem respectively, XpProSP3) Stock Cooling Core 700 shader 1750 (locked to core) unable to increase further even when lowering core and mem to stock levels Memory 1000 (just popped them up from 900 and got +100 ppd but also recieved unstable machine error so still monitoring) http://www.overclock.net/gallery/sho...=18280&cat=500 __________________ I seldom argue my advice, It's free take it or leave it. READ this thread before starting your first build!!! ALWAYS power up a Mobo Before installing it! Consider Less than helpful posts as Free Bumps. ¡¡¡ʍʇɟ qn1ɔ uoıʇɐıɔǝɹddɐ 939 ʇǝʞɔos ǝɥʇ: [Official]November Foldathon Retro Rulez *This goes without saying but* 1. If you can't afford to lose it don't mod or OC it. 2. At least read the OP before commenting. Semper Fi Last edited by Hueristic : 11-06-08 at 02:21 PM Reason: Add Screenie

11-06-08	#5 (permalink)
Hueristic Need a New Protocol Join Date: Jul 2008 Location: Bottom_Of_A_Bottle Posts: 7,758 Rep: 317 Unique Rep: 214 Folding Team Rank: 65 Trader Rating: 2	Also post straps for GS please. __________________ I seldom argue my advice, It's free take it or leave it. READ this thread before starting your first build!!! ALWAYS power up a Mobo Before installing it! Consider Less than helpful posts as Free Bumps. ¡¡¡ʍʇɟ qn1ɔ uoıʇɐıɔǝɹddɐ 939 ʇǝʞɔos ǝɥʇ: [Official]November Foldathon Retro Rulez *This goes without saying but* 1. If you can't afford to lose it don't mod or OC it. 2. At least read the OP before commenting. Semper Fi

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GPU client "PPD tuning"

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