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Overclocking Extravaganza: Radeon HD 4890 To The Max
Overclocking Extravaganza: Radeon HD 4890 To The Max
Date: April 29th, 2009
Topic: Video Card
Manufacturer: ATI
Author: Derek Wilson
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Power Consumption

Yes, overclocking consumes more power. But interestingly enough, even pushed all the way to the top of what AMD allows in their own driver settings, the overclocked 4890 draws just a little less power than the GTX 285. Which is not bad at all considering the type of performance we can get out of this setup.

Idle Power

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61 Comments - Last by PC Reviewer, 152 days ago
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Nvidia & AMD Cards by Depeche, 206 days ago
Doesn't AMD make the cards a whole different way then Nvidia? Don't they have like really high clocks and memory while Nvidias is a lot lower with higher of other parts?

Also has Nvidia made a card that's simply overclocked like the 4870/4890?

Reply
RE: Nvidia & AMD Cards by StevoLincolnite, 206 days ago
The most Overclockable card that I can remember from nVidia was the Geforce FX 5700LE it's stock core speed was 250mhz, I managed to crank my core speed on that card all the way to 640mhz on the stock Heatsink and fan, however thats not saying much as the 5700LE was basically a regular 5700 but with it's clockspeeds reduced to 5200 speeds, before that I had a Geforce 2 MX100 which was incredibly overclockable, and the TNT Vanta I had before it was as well, however I don't think I have seen a high-end part with that much overclocking margin.

Reply
RE: Nvidia & AMD Cards by nubie, 206 days ago
If you are willing to raise the voltage you can get really good overclocks.

I had a 7900GS up to 720mhz (from 450mhz) before it couldn't take it. Backing off to 708-700 made it stable, so I settled for 650 and it has been rock-solid for 3 years.

It all depends on the kind of cooling and power you can bring it.


Reply
RE: Nvidia & AMD Cards by nubie, 206 days ago
I should say it has been more stable than any of my 8 series cards under heavy load (hours of gaming with shader generating on level loads.)

Reply
RE: Nvidia & AMD Cards by nubie, 206 days ago
I am not sure I understand what you mean by "simply overclockable"

Just add the coolbits registry value to the classic control panel and there are two simple sliders. It has been that way for years.

As far as the speeds you can reach, just take care that there is enough cooling and power (voltage bumps if need be).

I learned how to shade a resistor and take voltage measurements over at vr-zone, I think Shamino has a tutorial for it.

Reply
RE: Nvidia & AMD Cards by kmmatney, 206 days ago
I had an NVidia Ti4200 that overclocked well - good enough to basically double the cards value. The original Radeon LE also overcloked well, and you could unlock extra pipes. I also still have an X800GTO2 that could be Bios flashed to an X850XT.

Reply
RE: Nvidia & AMD Cards by ValiumMm, 199 days ago
lol noooob

Reply
RE: Nvidia & AMD Cards by SiliconDoc, 167 days ago
depeche: " Doesn't AMD make the cards a whole different way then Nvidia? Don't they have like really high clocks and memory while Nvidias is a lot lower with higher of other parts?

Also has Nvidia made a card that's simply overclocked like the 4870/4890?
"

THE ARTICLE HERE " We absolutely must caution our readers once again that these are not off-the-shelf retail parts. These are parts sent directly to us from manufacturers and could very likely have a higher overclocking potential than retail parts. "

LOL - WELL THAT SHOULD ANSWER YOUR QUESTION !

cocka doodle dooooo ! cocka doodle doo ! red rooster rides again !


Reply
The Derek BIAS shines on again by SiliconDoc, 167 days ago
ATI has lost TWO BILLION DOLLARS SELLING THEIR GPUs ! A BILLION A YEAR EASY - YET DEREK HAS THE UNMITIGATED GAUL TO SAY THIS:
.
" In the meantime, NVIDIA's margins are much tighter on their larger GPUs and now their single GPU performance advantage has started to erode. It seems the wonders of the RV7xx series have yet to exhaust themselves. "
ROFLMAO !
THAT MIGHT MAKE SENSE IF ATI HADN'T COST AMD A BILLION PLUS A YEAR ON BARELY 2 BILLION IN SALES! ATI IS LOSING 33%.
THEY SELL $100's OF ATI CARD, THEY LOSE $33 !
---
THE TRUTH REALLY REALLY SUCKS , HUH RED ROOSTERS !

Reply
BTW by Depeche, 206 days ago
BTW, great article but very long and time consuming xD to interesting. Keep up the great work!

Reply
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