Quad-Crossfire with HD4850 512MB cards. Questions.

[VirtualLarry]

Just wondering what the furmark draw is of a HD4850, and therefore what four of them would take.

Thinking of swapping out my four 9600GSOs from my F@H rig and slapping in four HD4850s and an 1090T and selling it as an UBER GAMING RIG.

Anyone know if four HD4850s would equal two HD6850s or two HD6870s?

Edit: I found this benchmark:
http://www.tweaktown.com/articles/1475/four_radeon_hd_4850s_in_crossfirex/index.html
Seems like performance goes backwards after you add more than two cards. Not a good sign.

This was done awhile ago. Has scaling improved at all with quad-crossfire? Didn't someone in this forum do quad-crossfire 5770s?

 

[3DVagabond]

Sources I find googling it say 4850 TDP = 110W

 

[digitaldurandal]

But why?

 

[God Mode]

But why?

why not? :sneaky:

 

[Mr. Pedantic]

Why bother? You might as well just get a 6870, it'll be quieter, cooler, cheaper, and you'll have no issues with microstutter, profiles, or scaling. It'll be better suited to newer games, it'll take up less space and less slots, and it'll be less trouble to keep. The 4850 was a good card and all back in the day, but that day was over 2 years ago. By today's standards the card is simply out of date. That you want 4 of them in one build, now, when there are better, cheaper options, is a bit strange.

 

[toyota]

Quad crossfire seems ridiculous especially with 512mb cards. do four cards even scale decently in the first place???

 

[dust]

I'd think again before going 4x 512, I have 2x512 and there are issues with scaling, the best example would be Warhead, two cards get lower average than one alone if you can imagine. For many other games it helps a lot having cf, but quad fire isn't known to scale well.

Check this out:

http://www.overclock.net/5992686-post1234.html

 

[notty22]

TH hardware did a build with quad 4850 1gb here :
http://www.tomshardware.com/reviews/amd-enthusiast-crossfire,2421.html
tested against a i7 920-gtx 260 sli rig

Power draw with a o/c 945 was 640 watts

 

[Barfo]

Are you planning to use that for heating during the winter? My single 4850 easily reaches 90C under load.

 

[toyota]

Are you planning to use that for heating during the winter? My single 4850 easily reaches 90C under load.

the temp on the gpu doesn't necessarily mean that it is producing a lot of heat.

 

[Skurge]

the temp on the gpu doesn't necessarily mean that it is producing a lot of heat.

Yeah, it could mean the card has a crappy cooler. Which is what the 4850 had.