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Xfire sapphire 5770's vapor X


New Member
Apr 6, 2010
25 (0.01/day)
So umm, first I'll just say hi, because I'm new on these forums, although I've been coming to this place for reviews for a fairly long time.

So yeah, I bought these 2 5770's like a week ago, and today I decided it was time for some oc'ing.
Downloaded Afterburner, installed it + Kombustion. Decided to run the Kombustion stability test with stock clocks first to see what the temps were like (I've overclocked before, every card I've ever owned actually). So I check out temps in kombustion and it says the top card is hitting like 80°C + while the bottom card remains below between 60 and 70°C. Isn't the top card a little too hot? Or is this normal?
Will the temp difference go up once I start overclocking or will it remain the same? Is it safe for these cards? and what I a safe range of temps?

Thanks in advance.
May 11, 2009
1,040 (0.33/day)
System Name not sure yet
Processor i7 4930K @ 4.6GHz
Motherboard ASUS Rampage IV Extreme Black Edition
Cooling It's a secret for now..
Memory 16GB Mushkin Black Line
Video Card(s) ASUS GTX780 Ti
Storage 240GB KINGSTON SSD & 2TB Seagate SSHD
Display(s) Samsung 26" TOC
Case Mountain Mods Ascension
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Power Supply Corsair AX860 Platinum
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Welcome to the forums!

You may want to put some new thermal paste on the GPU's, but those temps are okay. When you overclock, the difference should stay about the same, however, the temperatures are going to go up.
Jul 17, 2008
1,062 (0.31/day)
System Name REBEL R1
Processor Core i7 920
Motherboard ASUS P6T
Cooling Stock
Memory 6GB OCZ GOLD TC LV Kit 1866MHz@1.65V 9-9-9-24
Video Card(s) Two Sapphire HD 5770 Vapor-X Xfire'd and OC'd (920/1330)
Storage Seagate 7200.11 500GB 32MB
Case Antec Three Hundred
Audio Device(s) ASUS Xonar D1 PCI Sound Card
Power Supply OCZ StealthXStream 500W
Software Windows 7 Ultimate 64-bit
Benchmark Scores 16585 Performance Score on 3DMark Vantage
I own the same GPU setup, and welcome to the forums.

Your OC should be fine but I highly recommend finding a powerful fan for the side of your case if you want to OC any further than the current result.
Sep 9, 2009
969 (0.32/day)
Austria, Europe
System Name Bang4Buck
Processor Intel Core i7 5820K @ 4.5Ghz @ 1.254v
Motherboard ASROCK X99M-EXTREME4
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Memory 16gb 2666mhz 14-14-14-34-1T @ 1.28v
Video Card(s) Gainward Phoenix GTX1070 Golden Sample with GLH bios flased
Storage Samsung 840 EVO 250Gb / 6Tb Raid -HGST Enterprise/ Samsung Spinpoint F3 1Tb / BW-16D1H-U PRO blu-ray
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Case Corsair Carbide Air 540
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Power Supply Seasonic X-750W (KM3)
Keyboard Logitech K520
Software Windows 10 Pro x64
Benchmark Scores RealBench 2.43: 164477 http://www.3dmark.com/3dm/14858144? http://www.3dmark.com/3dm/14857974?
Also try setting the fan speed manually to 100% and observe the temperatures while overclocking. Good luck, the 5770 should overclock like a beast. Oh, and welcome to TPU.


New Member
Apr 6, 2010
25 (0.01/day)
Thanks for the friendly reception guys/gals really appreciate it, this looks like a great community.
I really appreciate the advice. That'll be my next purchase then, a more powerful fan to blow onto the cards. Any advice on that? Or am I going off topic?