[legitreviews] HD4850 Vs. 9800GTX+ - Page 2 - Overclock.net

RPIJG · 06-20-08

I don't think it really ruins the market. They are pretty equal players (a few FPS here and there, doesn't seem much like a difference if you ask me). The real advantage is that the 4850 in crossfire is a monster, and you don't have to have an Nvidia chipset to do it!

WBaS · 06-20-08

Is crossfire scaling still better than sli? Where can I see these scaling benchmarks?

Name Change · 06-20-08

I think you will end up seeing a little more gains outa newer drivers with 4850 then with 9800 Nvidia is coming out with, and crossfire is a big plus..

RPIJG · 06-20-08

Quote:

Originally Posted by WBaS

Is crossfire scaling still better than sli? Where can I see these scaling benchmarks?

The scaling really depends on the cards. You can't say generally Crossfire is better than SLI as some Crossfire combos won't scale as well others, same with SLI. 4850's seem to scale really well, and some of the results from in game and benchmarking shows this combo to be very, very powerful.

Liability · 06-20-08

The problem is the disgusting amount of heat the 4850's are putting out; doesn't allow for much overclocking.

WBaS · 06-20-08

Quote:

Originally Posted by RPIJG

The scaling really depends on the cards. You can't say generally Crossfire is better than SLI as some Crossfire combos won't scale as well others, same with SLI. 4850's seem to scale really well, and some of the results from in game and benchmarking shows this combo to be very, very powerful.

Ok thank you. I've never run dual cards because I don't think I've ever had the money/need to. But if these cards are as good as they seem, I might someday have to try the dual card setup.

dralb · 06-20-08

Quote:

Originally Posted by Liability

The problem is the disgusting amount of heat the 4850's are putting out; doesn't allow for much overclocking.

Where can I see some OC results? I have been looking for these, but have not seen anything worth while. Do you have a review of either of these cards overclocked? I think that could be the difference.

ryboto · 06-20-08

Quote:

Originally Posted by Liability

The problem is the disgusting amount of heat the 4850's are putting out; doesn't allow for much overclocking.

Maybe upgrade from the stock single slot cooler, and then test that argument? As for the benchmarks, the 4850 seems to come almost neck and neck with the GTX+ at higher resolutions. Now that AA implementation is better, most reviews show the 4850 rise above the GTX with AA and AF enabled.

Liability · 06-20-08

Quote:

Originally Posted by dralb

Where can I see some OC results? I have been looking for these, but have not seen anything worth while. Do you have a review of either of these cards overclocked? I think that could be the difference.

It was on page 13 of that review.

Quote:

Overclocking

To overclock the ATI Radeon HD 4850 graphics card, we used ATI Overdrive that is part of the CATALYST Control Center. When you 'unlock' the ATI Overdrive, you can manually set the clock and memory settings or let the 'auto-tune' utility to set the frequencies for you. Just for fun, I tried out the auto-tune feature to see if it could really find a stable clock configuration and it worked in just a few minutes and did not lock up the system.

We started out at 625MHz on the core and 993Mhz on the memory, but was able to rech 690MHz on the core and 1088Mhz on the memory. This is a 65MHz overclock on the core and 95MHz on the memory. That adds up to about a 10% overclock, which is not bad!

When it came to the GeForce 9800 GTX+ we overclocked it manually using the EVGA Precision overclocking utility. We were able to reach 840MHz with full stability and had the shaders locked in at 2084MHz. The memory was able to be overclocked from 2200MHz to 2430MHz, which was also a nice increase.

If you recall from our 3DMark Vantage test page the stock clocks scored 7888 with Physics enabled. After the overclock the score increased nearly 1,000 points up to 8,862 3DMarks (a 12.3% increase in performance)! The card would run at 900MHz on some benchmarks, but wasn't stable on others like 3DMark Vantage. We stopped at 840MHz on the core and 1215MHz on the memory, but this card may have a little more in it. Notice the card was running 50C with these settings!

Liability · 06-20-08

Quote:

Maybe upgrade from the stock single slot cooler, and then test that argument? As for the benchmarks, the 4850 seems to come almost neck and neck with the GTX+ at higher resolutions. Now that AA implementation is better, most reviews show the 4850 rise above the GTX with AA and AF enabled.

Not that any are out at the moment, but buying a dual slot cooler for it when they become available would be putting them both at the same price point. This is the hottest card I've ever seen, I can't imagine why they'd ship it out with such a crappy cooler.

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[legitreviews] HD4850 Vs. 9800GTX+

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