- Jan 20, 2014
- 97
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Hi! I sat down to do some overclocking on my Sapphire Tri-X R9 280X... and I saw some unexpected and weird results... I started out at 1100MHz as I know my card is capable of that (it's not factory OC and comes stock at 1000MHz)... I decided that I would just use the Tomb Raider benchmark as a quick indicator to whether the OC was stable or not and to see any performance differences...
@1100MHz I got a minimum of 84 a max of 124 and averaged 104.5 fps... then I started increasing the clock bit by bit and saw improvements all the way until 1150MHz where I got min: 86, Max: 128 and Averaged about 107.5 fps... then I tried bumping it up to 1160MHz (remember I did not overvolt) and fps went down drastically! (averaged about 72fps) I did not see any stutters or weird things it ran all the way through the benchmark so I thought that I had reached the limit for what my card could do without overvolting it... so then I wen't back and figured that I would try it once more at 1145MHz and see what number I got there before going to a more stressing benchmark like valley in order to really see if it was stable... but when I ran it at 1145 it was still only averaging about 70 or so fps? even though it ran with 30fps more at 1100MHz and even better with 1150MHz...
I checked with GPU-Z and I didn't experience any thermal throttling or anything... the card ran at the set speed through the whole benchmark and it barely touched 60C with fans only going up to about 40% at most...
so is there something wrong with my card or is it Tomb Raider acting up weirdly?
@1100MHz I got a minimum of 84 a max of 124 and averaged 104.5 fps... then I started increasing the clock bit by bit and saw improvements all the way until 1150MHz where I got min: 86, Max: 128 and Averaged about 107.5 fps... then I tried bumping it up to 1160MHz (remember I did not overvolt) and fps went down drastically! (averaged about 72fps) I did not see any stutters or weird things it ran all the way through the benchmark so I thought that I had reached the limit for what my card could do without overvolting it... so then I wen't back and figured that I would try it once more at 1145MHz and see what number I got there before going to a more stressing benchmark like valley in order to really see if it was stable... but when I ran it at 1145 it was still only averaging about 70 or so fps? even though it ran with 30fps more at 1100MHz and even better with 1150MHz...
I checked with GPU-Z and I didn't experience any thermal throttling or anything... the card ran at the set speed through the whole benchmark and it barely touched 60C with fans only going up to about 40% at most...
so is there something wrong with my card or is it Tomb Raider acting up weirdly?
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