My card showed gains all the way up to 6000, but others may hit problems if the GDDR5 starts seeing errors at lower clocks. It depends on the card and how well the memory clocks before error correction starts taking place.
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How to overclock a 7850 past 1050MHz?
- Thread starter 555BUK
- Start date
Mine showed gains up to 6000MHz, but once error correction kicks in things start going backwards. It depends on how well your memeory clocks before erroring whether >5500 is worthwhile.
Which tool do you use for overclocks? Try using GPU Tweak and see what speeds the graphs report.
This is the first 7850 I have seen in the 90's. Previous highest was 87%. >1300MHz should be easy with good cooling.Would this be the highest you've seen 555BUK?
Sorry, for those with iffy eyesight it says 90.50%
Which model is it?
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Which model?New 7850, asus was 85.5% but wouldnt really clock that great and was hot and noisy, lets see what this one will do
I recomment the Accelero Twin Turbo II cooler for ~£30. It may seem expensive, but it is really quiet and cools MUCH better than any factory fitted 7850 cooler.
Alternatively, sell me your 92% ASIC and I'll happily ring it's neck
.The only benefit of flashing to the ASUS BIOS is the increased voltage range which may allow for better overclocks (so long as cooling is sufficient). With crossfire, overclocks are generally much more limited. I doubt that flashing the cards is really worthwhile for crossffire setups because 1200MHz is realistically your max, with 1050-1150MHz being more likely. Voltage probably won't be the issue.
So, don't bother unless you really like to tinker.
So long as temps stay below 80 you'll be absolutely fine. 7870's stock volts are 1.2v, and this is the same GPU after all.So, using Trixx I was able to reach the 1200 point at 1220mV..
My actual speeds:
Core Clock: 1200
Memory Clock 1375/5580
Voltage: 1220
How about this numbers??.. Is it safe to have my card at 1220mV 24/7???..
Temps never went over 62ºC at full load during the Heavens tests..
Best regards..
Can't you just set a custom fan profile to suit your ears?might try trixxs tonight
Although Im in two minds about keeping the card simply due to the noise, considered the ac tt II cooler but at £30 ish I might aswell just buy a MSI Twin Frozr card
GPU Tweaks built in fan profile adjustment is ****. It makes cards sound noisier than they really are because of it's stair-like climbs. Trixx is much better because the fans smoothly increment throughout it's range.
El-cheapo VTX + Accelero Twin Turbo II = by far the best cooled and quietest 7850 for under £200. At stock settings it ran cooler and quieter under full load furmark than my Powercolor (VTX clone) ran at idle. Even at >1300MHz with 1.3v it it never broke 65deg.
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The Accelero will EASILY beat the TF cooler. The benefits for the TF is that it is a standard double slot cooler, and you get to keep your warranty. As far as cooling is concerned, the TF cannot come close.
Looks like a good deal. Cooler appears the same as the TFIII version, but different colour facia and higher stock clocks. It's a shame that the review sites never overclock 7850's past the CCC 1050MHz limitation, because it would be nice to know whether these go any further that other 7850's.MSI Power Ed of Today Only for £199, bargain
LI overrides the cards TDP limit for 7 Series AMD cards. When set to zero, the board will throttle core speed when more than 130W is pulled. Setting LI to 20 raises the bar by ~20%, allowing for greater overclocks before throttling.
So long as your card remains below 80degrees, set it to 20 if overclocking.
So long as your card remains below 80degrees, set it to 20 if overclocking.
Pretty much yes. 7870= just below 580 and 7850@1100=7870.
Be happy, 1280 is a good.
Trixx is the best overclocking tool for reference cards. I guess having to mix and match apps is the downside to non-ref cards.
It swings from game to game. At 1920x1200 the 580 is slightly faster than a 7870 overall. For a 7850 to match a 7870 it needs to run at about 1075-1100MHz. To match a 580 1200MHz on the 7850 should be enough.
The link you quote shows the 7850 beating the 580 in 3DMark11, but losing in AVP. Overall scores look pretty close to me, but just two benchmarks is nowhere near enough to judge. Who gives a monkeys about AVP or 3DMark anyway1200 should be enough but it wasnt enough in the test
In your chart, 580 looks to have just too much a gap between itself and 7850 as well. Plus, once we factor in that even 1200 OC for 7850 is anything but a given... I think I've convinced myself
. Oh, and AVP is not a game that favours AMD because the 680 beats the 7970 clearly.
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Pure luck of the draw. Nobody seems to be cherry picking 7850 chips. It doesn't matter which card you buy whether you get 65% all the way through to 92% (current highest). I have seen the cheapest VTX cards with mid 80's, whilst some of the most expensive MSI's are low 70's. There is simply no way to guarantee a good ASIC, but fortunately even lower quality chips clock well.