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Overclocking Radeon HD 7970M\ \ 3D Mark result query

Poll Results: Games' physics' engines are processed by the clock rates of the systems'

 
  • 0% (0)
    CPU(s)
  • 0% (0)
    GPU(s)
  • 0% (0)
    An equal balance of both
  • 50% (1)
    A combination of both, however with significantly higher displacement of load to CPU than GPU
  • 0% (0)
    A combination of both, however with significantly higher displacement of load to GPU than CPU
  • 50% (1)
    Other
2 Total Votes  
post #1 of 4
Thread Starter 
Hey, I just joined the forum, thank you for taking the time to read this post..I have been using MSI Afterburner to overclock, ironiclly, an MSI laptop with a dual GPU cconfig (switchable graphics, not XDMA) Radeon HD 6660G AND Radeon HD 7970M. Naturally only overclocking the latter - if there was a way t o fully disable the 6660G permanently I would jump at the opportunity to do so (anyone?). From my experience, the 7970 actuallly requires the 6660G to run due setup of catalyst driver.

ANYWAY...

Performed baseline 3D Mark with these results:




All I am able to tweak currently are the GPU clock and the GDDR mem clocks, and after toying with the rates I figured that to retain stability max core was 960 (850) and the memory 1320 (1200). I have only tried approx 5 different clock configs and need to do plenty more to determine the optimal rates.



This step was really hard, so if anyone is wondering how to OC your card with burner, you have to open the program, and MANUALLY slide these little green rectangle bars to the right a little bit. Those things are heavy as, it took me almost 3 hours to drag them:

finally...



and I fired up 3dmark again, did the same test and the results were:



Here is a comparison:



As you can see, the overclocked has a higher total score, but under the physics subheading it scored significantly poorer.

I am curious as to why this could be, whether the improvement is worth the degraded physics (risk benefit).

I am aware that to some extent my CPU (A10) may be a bottleneck, not sure if this is relevant. Is the physics engine handled by the GPU? I would have guessed CPU, cbf making the effort of typing a few words in google when someone here will know smile.gif.

I would also REALLY like to know if anyone knows how to change the gpu voltage using software. My previous laptop had a radeon 4xxxx series card and I successfully used GPU clock tool to thoroughy increase performance whilst concurrently being able to undervolt significantly, allowing my battery life to significantly extend when executing tasks that have low gpu needs such as writing an assignment for university, web browsing. If there is no software solution, does anyone know of any bios hacks for a MSI GX60? Here are the mainboard details (far right column):




If you managed to power through, thank you for reading, and thanks to anyone who attempts to provide info / help
Edited by paedophobia - 1/13/14 at 10:39am
post #2 of 4
Unfortunately, regarding the poll, it is difficult to gauge.

Primarily though, Physics engine utilize the CPU for calculations. 3DMark uses CPU. Other games utilize physics calculations acquired from the GPU. nVidia specifically adopted/bought/absorbed Ageia PhysX to give game developers custom tools if they wanted to not use Havok, et all. and to do their math on the GPU. Mafia 2 and HAWX are examples of this.

So I voted other, as it is video card dependent, driver dependent, game engine dependent, just at the mercy and whims of the industry at large.

For the most part though it is CPUs doing the work.

For voltage adjusting, I believe if you follow my 7970 overclocking guide, it will help you and your 7970M.
http://www.overclock.net/a/getting-started-with-radeon-hd-7970-overclocking
Snowdevil
(16 items)
 
ASUS G750JM
(9 items)
 
 
CPUMotherboardGraphicsGraphics
[i7 4790K @ 4.4 GHz (1.186v)] [Asus Sabertooth Z97 Mark S] [nVidia Geforce GTX 1080] [nVidia Geforce GTX 1080] 
RAMHard DriveCoolingOS
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CPUMotherboardGraphicsRAM
i7 4770HQ Intel HM87 Express Chipset Geforce GTX 860M 8GB DDR3L 1600 MHz 
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Snowdevil
(16 items)
 
ASUS G750JM
(9 items)
 
 
CPUMotherboardGraphicsGraphics
[i7 4790K @ 4.4 GHz (1.186v)] [Asus Sabertooth Z97 Mark S] [nVidia Geforce GTX 1080] [nVidia Geforce GTX 1080] 
RAMHard DriveCoolingOS
[G.Skill 32GB DDR3 2133 MHz] [Crucial MX100 256GB] [Phanteks PH-TC12DX] [Win 10.1 Pro] 
MonitorMonitorKeyboardPower
[LG 29UM65 (2560x1080)] [QNIX Evo II LED (2560x1440)] [WASD v2 Tenkeyless] [NZXT Hale90 v2 ] 
CaseMouseMouse PadAudio
[ThermalTake GT10 Snow Edition] [Razer Mamba - Chroma] [Razer Kabuto] [Razer Man O' War] 
CPUMotherboardGraphicsRAM
i7 4770HQ Intel HM87 Express Chipset Geforce GTX 860M 8GB DDR3L 1600 MHz 
Hard DriveOptical DriveCoolingOS
Samsung SSD EVO DVD-RW Stock Windows 8.1 
Monitor
1920x1080 TN 
  hide details  
Reply
post #3 of 4
My 7970 does around 7000 score @1000mhz on the core and 1450 on the memory, there's QUITE the difference between mobile GPU and disctrete. Also we have to take into account that I have an overcloked i5 2500K @4.5Ghz
post #4 of 4
HD 7970m is very similar to HD 7870 in its desktop version. That was the reason why I was considering to buy some powerful alienware laptop with two HD 7970m. Quite an overkill for a notebook.

The lower score in latter tests (physics) may indicate that some part of hardware was throttling a bit due high frequency or temperature.

Also its hard to reply to you question in poll. there are physics engines which run purely on CPUs, and other which run purely on GPUs (in case of Nvidia), and as was already mentioned there was hardware such as Ageia cards, which were specifically designed to work as dedicated physics co-processor.
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