Crossfire ATI 4870 HD Bench

[steele_22]

I ran some bench marks on dual 4870's OC 830 Gpu Mhz and 1060 Ram Mhz in Crossfire
stock is gpu 750 mhz and ram 900mhz

you notice how the over clocking help my 3DMARK Vantage score over this chart

3DMARK VANTAGE GPU Score 14621

3DMARK 06 Scores

1280x1024 no AA .......... 16559
1600x900 no AA ............ 16129

1280x1024 4xAA ........... 15857
1600x900 4xAA ........... 15814

Anybody has any insite let me know.. will be testing at ultra high res next week

Bang for your buck this card ROCKS
















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The System

Intel Core2 processor Q9650 (3.0GHz,1333FSB) w/Quad Core Technology and 12MB cache

Dell nForce 650i Crossfire/SLI

Dell 630i Black Bezel Chassis

8GB DDR2 SDRAM at 800MHz - 4X2GB

Crossfire 1024MB ATI Radeon 4870

640GB SATA Hard Drive (7200RPM)

Microsoft Windows Vista SP1 Home Premium 64-Bit Edition

16X DVD-ROM and 16X DVD+/-RW

Dell CPU Air Cooling Thermal Heatsink

 

[tijmen007]

Same thing with the HD4770 ;D . It's a monster overclocker 😀.

 

[steele_22]

I've had great sucess thus far with the cards. my mobo is PCI E 1.0 so in crossfire its 8x 8x. I understand PCI E 2.0 is 8x 8x also, but its 8x 2.0 so thats like 16x 16x crossfire bridge.. how big of a difference if any would that make for me?

 

[cobot]

Nah, it is possible to have 2xPCI-E x16, it depends on your motherboard.
You get what you pay for, really, most premium crossfire boards have two 2.0 x16 ports nowdays.
The 2.0 revision of the pci-e port doubles the bandwidth per lane compared to pci-e 1.1.

With that said, however, atm most single GPU configs show little or no improvement with 2.0 compared to 1.1, or in some cases even with x16 compared to x8, however if you are running a double gpu solution (sli, crossfire AND x2 cards) some people would recommend updating to 2.0.

This is an intresting article concerning pci-e lanes and the 2.0 revision:

http://www.tomshardware.com/reviews/crossfire-meets-pci-express,1761-4.html

Now that test is over a year old and as we know, a year is almost an eternity in the world of computing 😀 .

It is possible that the situation is different today, but I'm too lazy to look it up atm.

 

[steele_22]

Nah, it is possible to have 2xPCI-E x16, it depends on your motherboard.
You get what you pay for, really, most premium crossfire boards have two 2.0 x16 ports nowdays.
The 2.0 revision of the pci-e port doubles the bandwidth per lane compared to pci-e 1.1.

With that said, however, atm most single GPU configs show little or no improvement with 2.0 compared to 1.1, or in some cases even with x16 compared to x8, however if you are running a double gpu solution (sli, crossfire AND x2 cards) some people would recommend updating to 2.0.

This is an intresting article concerning pci-e lanes and the 2.0 revision:

http://www.tomshardware.com/reviews/crossfire-meets-pci-express,1761-4.html

Now that test is over a year old and as we know, a year is almost an eternity in the world of computing 😀 .

It is possible that the situation is different today, but I'm too lazy to look it up atm.

I actually read that review once before, but the cards are so old I figured the 4870's might make a lot more use out of 2.0. So far everything i read says a 5% 10% above 16x so i"ll probably just stay like this for now. i even seen a review with the new is it x48 intel chipset?? i think thats what its called.. well i seen a review on it and the difference wasnt big enough to make me run out and buy one. thanks very much. hey quick question... this dell 650i mobo i have has a light controller for all the lights on the outside of my case. i can change each bulbs color from like 8 different colors. right no its all blue and red. but how will i know if a new mobo supports this? i dont think its just nforce that offers it. let me know if you have any clue. not to sound dumb but its the main thing holding me back from buying a new mobo..

 

[cobot]

I actually read that review once before, but the cards are so old I figured the 4870's might make a lot more use out of 2.0. So far everything i read says a 5% 10% above 16x so i"ll probably just stay like this for now. i even seen a review with the new is it x48 intel chipset?? i think thats what its called.. well i seen a review on it and the difference wasnt big enough to make me run out and buy one. thanks very much. hey quick question... this dell 650i mobo i have has a light controller for all the lights on the outside of my case. i can change each bulbs color from like 8 different colors. right no its all blue and red. but how will i know if a new mobo supports this? i dont think its just nforce that offers it. let me know if you have any clue. not to sound dumb but its the main thing holding me back from buying a new mobo..

Sorry buddy, you'll probably have to sacrifice your LEDs. 🙁

However, if you decide to go and get a new mobo, make sure your case and PSU is of the standard ATX type, otherwise you might be up for a nasty suprise. These large OEM companies may be a bit dodgy.....