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Old May 26, 2014, 08:31 PM
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Default Sapphire R9 290 Vapor-X OC Review Comment Thread

Sapphire's R9 290 Vapor-X OC is not only one of the highest-clocked R9 290 cards around but it also boasts some of the highest overclocking headroom we've come across in a long time.

Read more here: Sapphire R9 290 Vapor-X OC Review
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Old May 26, 2014, 09:55 PM
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amazing clocks.. im surprised at those clocks the results weren't higher was it throttling at times? or was power % limit not maxed out?
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Old May 27, 2014, 01:53 AM
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I think what has happened is that when AMD figured out how to tame their frame times in the driver it brought the max FPS down a notch or two. It's fine by me as long as the minimum FPS don't go to low.
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Old May 27, 2014, 04:50 AM
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I was expecting higher performance as well with the overclocks BUT, there comes a point when the architecture becomes more of a bottleneck and increasing clock speeds yields limited returns. Unlike popular belief, clock speeds and perf don't scale in a linear fashion. For example, a 10% clock speed bump won't result in 10% better framerates.

Clocks were sitting at 1280 the whole time according to GPU-Z with only a few dips. (See edit)
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Old May 27, 2014, 11:38 AM
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Does this card match a reference PCB like the original Sapphire Tri-X 290? I recognize the changes to length but without a PCB picture wonder if any reference waterblocks will still fit it for future builds.
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Old May 27, 2014, 11:38 AM
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rgr see the same thing when benching all the time diminishing returns on ocing.

Threw me off is all since most 290x's @ 1200 or so pull ahead of stock 780TI in other reviews i've read and this 290 from sapphire has a hell of a oc @ 1380mhz i expected it to stomp all over a 290x @ even 1250mhz.

Also threw me off it didnt even break 60fps but i guess it got close.. have you tried Mantel on those 2 benches? perhaps including mantel results would be a neat to see compared to dx11.
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Old May 27, 2014, 12:56 PM
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Quote:
Originally Posted by spoidz View Post
Does this card match a reference PCB like the original Sapphire Tri-X 290? I recognize the changes to length but without a PCB picture wonder if any reference waterblocks will still fit it for future builds.
Completely custom PCB and VERY hard thermal compound so I couldn't remove.
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Old May 28, 2014, 02:51 AM
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Quote:
Originally Posted by SKYMTL View Post
Completely custom PCB and VERY hard thermal compound so I couldn't remove.
Hit it with a brick :D
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Old May 28, 2014, 05:14 AM
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Heat it in the oven, then hit it with a brick.
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Old May 28, 2014, 05:45 AM
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HA! Unfortunately, this one was a loaner. So no bricking, stoning, heating, smashing or licking.
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