Crossfire 4870 is too slow???

apples & oranges bro, what kind of CPU was used in the benchmark you were referring to?

also, you mentioned that you setup the crossfire bridge, (singular) it should be bridges (plural) Crossfire needs both bridges to work...

Also, i see you have the 512 MB models for the 4870's, on the benchmark you were talking about, did the 4850's have 512 MB or 1GB?

Thanks for the reply.

This is the benchmark I was looking at: http://benchmarkreviews.com/index.php?option=com_conten...

the test system is as follows:

•Motherboard: Gigabyte GA-X48T-DQ6 (Intel X48 Chipset) with version F4 BIOS
•Processor: Intel E8400 Core 2 Duo 3.0 GHz (Overclocked to 3.6 GHz)
•System Memory: Corsair PC3-14400 DDR3 1800MHz
•Audio: HT Omega Claro Plus+ AD8620BR Op Amp Sound Card
•Disk Drive 1: OCZ SATA-II 32GB 2.5-Inch SSD OCZSSD2-1S32G
•Disk Drive 2: (Paging File) MemoRight GT MR25.2-064S 2.5-Inch 64GB SATA SSD
•Optical Drive: ASUS BC-1205PT SATA Blu-ray Disc Optical Drive
•Enclosure: Lian Li PC-B25B Black Aluminum Mid-Tower ATX Case
•PSU: ePower Technology EP-1200P10 xScale 1200W PSU
•Monitor: SOYO 26-Inch Widescreen LCD Monitor DYLM26E6
•Operating System: Windows XP Professional SP-3 (optimized to 16 processes at idle)

Here is another benchmark that may be more reliable: this shows the 4870 x2. My card acts more like a 4830cf.

http://www.tomshardware.com/reviews/4830-radeon-crossfi...

About the bridge. I've been reading that one will work for crossfire. I got my cards used and they only came with one. Getting another one, in Japan, is going to be a bit difficult.

Also, cf is checked in ccc. Don't know if its related but divx is also jumpy since I got my cards.

hmmm.., maybe the crossfire bridge layout has changed? I always thought that both had to be utilized, anyway, how do the benchmarks compare with just a single card as opposed to both cards in crossfire. If they are the same or very close, then it would seem that crossfire is not working correctly, if it's more than a 10% increase then there may be issues.

I might have an extra bridge for you that i could mail, it might take a while to get there, but it's free, lol, let me know if you need one or if it would be easire just to find one.

Konichiwa!

should of bought 2 4850's

the reason why you're getting such low fps is because your CPU is rubbish, even at 3.6GHz, you need to get a better CPU, try the Phenom II line of processors.

Sorry its been a while. The emails were going to my trash folder.

Anyway. Thank you all for your replies. I fixed what was happening.

I changed the position of my bridge and rearanged my raid setup. I gained a quite a few fps. It's pretty much on par with reviews.

I'm getting about 50-52 average consistantly. From what I've been reading there isnt much difference between the 4850 and 4870 in World in conflict.

Ohh and there was a typo with the processor info. its 2.6 not 3.6 and oc'd to 3.0.