Quick Look: PowerColor’s Radeon HD 5770 PCS+ Vortex Edition
by Ryan Smith on August 25, 2010 11:22 AM EST- Posted in
- GPUs
- AMD
- Radeon
- PowerColor
Overclocking
While the Vortex is already factory overclocked, there’s some additional headroom on the card for further overclocking. Do note that the card does not use voltage-adjustable VRMs, so overclocking is limited to what can be achieved at stock voltage.
| Stock Core Clock | Max Core Clock | Stock Memory | Max Memory | |
| PowerColor Radeon HD 5770 PCS+ Vortex Edition | 900MHz | 970MHz | 1.225GHz | 1.35GHz |
After overclocking our Vortex, we were able to increase the core clock to 970MHz and the memory clock to 1350Mhz(5.4GHz effective). This represents a 7.7% core overclock and a 10% memory overclock over the card’s factory settings, or a 14% core overclock and a 12.5% memory overclock over a the 5770’s reference clocks.
Note that all of these tests are with the Vortex's fan lowered.
Overclocking the Vortex offers a solid performance improvement, but it won’t be enough to leapfrog any other DX11 card in our tests.
Meanwhile the power/temperature/noise penalty for overclocking the card is very low due to the fact that we’re limited to overclocking without voltage adjustments. Temperatures rise 3C in both Crysis and FurMark, which translates in to roughly a 1dB(A) increase in noise. Meanwhile the power consumption increase leading to all of this is 5W-10W.
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JimmiG - Wednesday, August 25, 2010 - link
So the cooler manages to be almost as good as the stock cooler while being louder and potentially taking up more space. The card itself is about as overclockable as any other 5770 card and comes with a 6% factory overclock, while costing 10% more than other 5770 cards. No thanks.Ryan Smith - Wednesday, August 25, 2010 - link
Just to be clear, the cooler takes up no additional space unless you extend the fan. When it's lowered it's no wider than any other double-slot card, and since it's shorter overall it's smaller than the reference 5770.GatoRat - Wednesday, August 25, 2010 - link
This makes me want to buy a NVidia GTX 460! Runs cooler and faster and uses less power! The 768MB version sells for only $30 more.Goty - Wednesday, August 25, 2010 - link
Yeah, a whole 2-3 watts less at idle. Whoopee?Taft12 - Thursday, August 26, 2010 - link
... along with 40W more power at load and not $30 more, but $50 more.The GTX460 is a great product but can we please keep the fanboy exaggerations down?
JarredWalton - Wednesday, August 25, 2010 - link
I am not interested in 3-slot GPUs. What I'd actually like to see is a review of the single-slot 5770 by XFX. Mostly, what happens to noise and temperatures on that card. But then, I have a rather odd BTX motherboard/system that won't let me use more than a single-slot GPU. :-)ggathagan - Wednesday, August 25, 2010 - link
Jarred,As an SB86i owner, I agree, but until Anand gets you one to test:
http://www.hardwarecanucks.com/forum/hardware-canu...
Canuck's biggest beef: XFX gave up the HDMI connection for a 2nd DVI connection.
You gotta' talk to your boss about what's important.... :)
spac18 - Wednesday, August 25, 2010 - link
Hi everybody. I signed up to anandtech forums couple of weeks ago and activatrd my account. I can log into my account but when I try to post, it says that I dont have enough previleges or permisions to post. Whats going on? Sorry for being off topic, but this is the only way I can get help.LordanSS - Wednesday, August 25, 2010 - link
I was wondering if it'd be too much trouble, or impossible, to add more graphics cards to the GPU Bench... namely the mainstream cards? At least from this generation (5430->5475, 5570, and the nVidia equivalents, that jazz).Would be nice to have a couple from the old generation too (4650/4670, 4770, etc). Those cards are still widely available here in Brazil (and I suspect in the US too), so having a direct comparison tool like Bench, to see how much could be gained from an upgrade, or new build, would be really nice. =)
Keep up the good work! =)
vol7ron - Wednesday, August 25, 2010 - link
It's true, this site is not the best GPU review site. http://www.gpureview.com/ is okay.The articles are quality, but GPU review is not like CPU review, there are so many cards out there. Mobos and GPUs just require fulltime staff and lots of capital to test.