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A10-5800k with RAM OC'ed to 2400 and OC'ed HD6670 in Crossfire, Anyone try this yet? Any Benchmarks? - Page 3

post #21 of 72
The drivers are just not up to par with hybrid graphics on desktop trinity systems. Notebook trinity is another story. Here is my results, not overclocked of course.

14" Samsung 335V
A10-4600m @ 2.3/3.2 Ghz 2M/4T Piledriver
AMD 7660G + 7670m
2 x 4 Gb 1600 / cl9 Kingston HyperX



With newer drivers i expect the desktop version to get beyond a score of P3000.
    
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post #22 of 72
Well, if it's only a driver issue then hopefully an update will fix it. Still in one of the online benches I saw in certain games it nearly doubled the frame rates, only in one or two games was there very little improvement. I can't wait to see these benches because I have an HD 6670 that is just dying to be dropped into one of these systems!!
post #23 of 72
Just wanted to say that i have done some testnings now, and so far it looks really great! Will Soon have screen shots of the entire set of tests smile.gif

But i just have 2 questions!
Does it really matter if its a hd 6670 DDR 3 vs DDR 5, cause so far my DDR 5 version seems to be outperforming those reference test I have found online using a hd 6670 DDR 3!
The stigma is the DDR 5 get "changed" to DDR 3?

Second, the ram i have, for some reason, getting Them to 2400mhz, heck getting Them beyond 2100 mhz is really hard?
So for testnings sake, Cant i just buy a 8gb set og pc3-19200 and use those?
post #24 of 72
I also have an HD 6670 with DDR 5 RAM. As far as I know, the ones with DDR 5 RAM will run better in this setup because when the two GPUs(iGPU and HD6670) team up, they share the DDR 5 RAM on the card, not the system ram. So of course it's better for the two GPU's to run with GDDR 5, so that's why your tests are better than the ones online that use GDDR3.

As for the Memory speed, I'd say the best indication would be for you to run the system with the RAM set as fast as you can get it stable. Perhaps to be thorough you could run the tests at 1600MHZ which is very common, and then again at the max speed you can achieve. I can't wait to see the results you get, because I am considering getting a 5800K to go along with my HD 6670.
post #25 of 72
Well I'm glad I stumbled onto this. I was thinking about building a miniITX build with that sort of setup for my fiance in the near future. Are there any screenshots yet to show the quality you guys might be getting out of this? And does anyone know if the future 7670 will be a 2GB GDDR5 version?
post #26 of 72
Did you get any results Skyprey? I'm really interested to know how this performs with RAM at 2000+MHz and the IGPU overclocked when crossfired with the 6670 as opposed to just the IGPU or just the 6670 on their own.
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post #27 of 72
I haven't seen anyone reporting memory speeds at 2400 yet with the a10. I have gskill sticks rated for 2133 and working at that speed and I might be one of the lucky ones because many others have not been able to get past 1866. I have tried to push further but 2133 seems to be the limit with this chip and board (MSI a75). I believe this to be a limitation of the memory controller, although it could be the board.

Also I cannot overclock the GPU, I cannot adjust the GPU voltage in the bios, even with turbocore and cnc disabled, the voltage throttles down to .89 volts (its lowest load state) if the multiplier is set to anything but auto for the GPU, disreguarding whatever value you entered for the northbridge voltage. Leaving my only option to OC via base clock which causes instability.
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post #28 of 72
Ive gotten my 1866 memory to 2133 on mine no problem, havent gotten it to 2400 yet though. I just got a H70 Core cpu cooler so im try it out a little biggrin.gif
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post #29 of 72
Quote:
Originally Posted by spatulator View Post

I haven't seen anyone reporting memory speeds at 2400 yet with the a10. I have gskill sticks rated for 2133 and working at that speed and I might be one of the lucky ones because many others have not been able to get past 1866. I have tried to push further but 2133 seems to be the limit with this chip and board (MSI a75). I believe this to be a limitation of the memory controller, although it could be the board.
Also I cannot overclock the GPU, I cannot adjust the GPU voltage in the bios, even with turbocore and cnc disabled, the voltage throttles down to .89 volts (its lowest load state) if the multiplier is set to anything but auto for the GPU, disreguarding whatever value you entered for the northbridge voltage. Leaving my only option to OC via base clock which causes instability.
I've gotten up to 2448mhz, but it got some mem issues. My latest bios update was what let me run my mushkins @ the 2400 multi, could not get the mem stable with the bios that was available on release. Mem rated for 2133 and hit 2550mhz with llano system.
I doubt AMD went backward from the llano mem controller (see above), so I would make sure your bios is new, play around with it more if that kind of thing is enjoyable to you. Even my $40 sammy's would do high 2200mhz.
Gpu seems very picky with nb voltage, too high or low caused me issues.
If the 24x multi just wont play nice, drop everything multi wise and see what baseclock range your OS is ok with. My cuurent install of win8 is ok with 96-106, which leaves for most of the range up from 2133-2400. However 96 x 46 (cpu) required some vrm frequency adjustments to boot, everything lower cpu multi was fine.

As for 3d11 http://www.3dmark.com/3dm11/5100025 It was late, will try for 2100 next weekend
3dV - http://www.3dmark.com/3dmv/4390087 mushkin before bios update],[ http://www.3dmark.com/3dmv/4403267 samsung 1600mhz 2x4gb (not running that slow)
post #30 of 72
I finally have been able to OC the GPU using AMD Overdrive.
http://www.3dmark.com/3dm11/5126645
MSI Mainboard FM2-A75MA-E35

Im now getting 30fps with newer dx11 games vs 25 before GPU OC, I was starting to feel some buyers remorse but the GPU is just fast enough now for me =)
Yeroon, considering your mem clocks I suppose the 2133 is a limitation of my midrange fm2 board.
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