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Best settings for my 7970?

post #1 of 5
Thread Starter 
I'm new to thinking about graphics cards, overclocking, games, etc. Total beginner.

Recently bought a pretty nice computer for photo editing and one of the apps I use (Phase One Capture One) uses OpenCL to speed up image processing, so I bought a Sapphire 7970 OC for what seemed to be a great price ($280 after $20 rebate at Newegg).

It came with 3 free games, so for the first time in 20 years I decided to try computer games, and while I don't see myself spending a whole lot of time playing games, the graphics are pretty stunning and I'd like to run the games with as much eye candy as possible with this card and my 2560 x1600 display.

Now to the question: Using Sapphire Trixx to tweak, I found that the following 3 profiles are completely stable in all my games, and my question is which one to choose?

Profile 1:
GPU Clock: 1000 (stock for Bios 2)
Memory Clock: 1450 (stock for Bios 2)
VDDC: 1137 (stock)

Profile 2:
GPU Clock: 1100
Memory Clock: 1500
VDDC: 1175

Profile 3:
GPU Clock: 1200
Memory Clock: 1600
VDDC: 1250

In terms of game performance, Heaven score, and Fire Strike score, Profile 3 > 2 > 1.

GPU and VRM temps are higher with Profile 3 but don't seem to get much over 70 degrees C in Heaven, regardless of profile. Fan noise doesn't bother me in any of the profiles, and I'm not hearing any problematic noise of any kind.

Is it safe to keep it set to Profile 3? I'm okay with the risk of shortening my 7970 lifespan, but am I risking other components in my computer? Are there any fire safety issues?

If it matters, here are my full system specs:
Fractal Design Define R4 Case
Seasonic SS-660XP 660W Power Supply
Asus Z87-Deluxe/Dual Motherboard
Intel Core™ i7-4770 CPU
Cooler Master Hyper 212 EVO CPU Cooler
Crucial 32GB (4 x 8GB) Ballistix Sport PC3-12800 DDR3 RAM
Sapphire 7970 OC with Boost (Dual-X)
Samsung 512GB 840 Pro Series SSD
Seagate 2TB Barracuda x 2 RAID 0 (striped) storage
Seagate 3TB Barracuda backup HDD
WD Green 1TB backup HDD
Windows 8 64-bit Professional
post #2 of 5
use the profile that gives you enough of a satisfactory performance (the sweet spot); it most likely won't be the same for all of them.

as an example for ME (with my gtx 570) crysis 2/3 and bench marking are the only times i enable my "bleeding edge" profile. the rest i use what level makes the most difference - there is usually a point of diminishing returns when i increase the volt/clock speed.

you'll need to give it another go around to find which ones work best for your card/set up now that you found the "limit".
loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
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loon 3.2
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7-3770K Asus P8Z77-V Pro EVGA 980TI SC+ 16Gb PNY ddr3 1866 
Hard DriveHard DriveHard DriveOptical Drive
PNY 1311 240Gb 1 TB Seagate 3 TB WD Blue DVD DVDRW+/- 
CoolingCoolingOSMonitor
EKWB P280 kit EK-VGA supremacy Win X LG 24MC57HQ-P 
KeyboardPowerCaseMouse
Ducky Zero [blues] EVGA SuperNova 750 G2 Stryker M [hammered and drilled] corsair M65 
AudioAudio
SB Recon3D Klipsch ProMedia 2.1  
  hide details  
Reply
post #3 of 5
Thread Starter 
Thanks for your reply. Are there any risks to leaving it in Profile 3 other than shortening the lifespan of my 7970?
post #4 of 5
It wont shorten it in any appreciable way unless you game 24x7 - even then itll shorten it to something like 7 years from the normal 10. Those 1200/1600 clocks (really nice btw) - arent hit unless youre doing 3D rendering, im not sure if your OpenCL stuff will cause the card to clock up though.

In any case - using Trixx or Afterburner to quickly set profiles at a touch of a button will give you best performance - 1 for day to day use or older games, 2 for OpenCL (if it does improve performance) and 3 for gaming.

I would also suggest setting aggressive fan profiles if possible - you can control what the fan speeds are at what temperatures, 50% at 50C for example. Try not to have the GPU go above 75C, and the VRM around 85C, you can dig around for max allowable temps but i think those are decent numbers to go by
post #5 of 5

You're fine with any of them.  I would do what jerrolds suggested just using whichever profile you need, when you need it.  

 

I just leave my 7970 stock which is 1050 on the "ghz bios" I flashed to it, even when I game, because I don't really play that demanding games that it makes a difference.  It doesn't sound like you are much of a gamer, but if you are playing a more demanding game, set it to profile 3.  

 

It wouldn't hurt anything to leave it on profile 3 24/7, but is it really needed?  Probably not.

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