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4870x2 + 4870 (512)

Last response: in Graphics & Displays
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October 10, 2008 12:12:14 AM

Hi Guys,
I Just Pulled out a 4870 512 from my Second computer (Installing Water Cooling in it) and decided to whack it in my Primary computer with a 4870x2
for the hell of it.
Since there aren't many 4870x2+4870 Benchmarks out there, I'm happy to do a couple of benchmarks for anyone that's interested.

So far I've only done 3DMark Vantage and WIC @ 1920x1200 Very High (Just formatted so I'm gonna start installing my other games after work)

Anyways here's what I've done so far
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Specs:
CPU: Xeon X3360 @ 3.8GHZ (Voltage is high ATM, I'll start this weekend)
Mobo: Asus Rampage Formula
Ram: Crucial Ballistix Tracer Red 8gb DDR2 900 5-5-5-15 @1.8V
Graphics: Radeon HD4870x2+4870(512) (fans set at 40%)
PSU: Silverstone Strider 850watt
Case: Lian Li 201B
CPU Cooler: Asetek Xternal Waterchill (waiting for Apogee GTZ + DD 4870x2 cooler to be delivered)

Please tell me What Benchmarks you want me to run or If you need anymore info on the system

Thanks



More about : 4870x2 4870 512

October 10, 2008 12:53:03 AM

Those scores are preety damn good, wow. Espically the Extreme one. I see you are using a server proc, and I looked it up, not bad. Im preety noobish when it comes to server procs, I didnt know they shared the same socket and could work on non-server motherboards :(  The reviews are very promising.....might look at it instead of a Q9650 when upgrade time comes.
October 10, 2008 12:59:05 AM

wouldn't the 4870x2 be cut back to 1gig , 512 each for each gpu on the 4870x2
Related resources
a c 107 U Graphics card
October 10, 2008 1:12:04 AM

cool
a c 143 U Graphics card
October 10, 2008 1:30:14 AM

Wow, thanks for the offer. Sure, give us benchmarks for every game you've got.

Would you mind also measuring with the HD 4870 turned off please. I'm really curious how much value the third GPU adds.
October 10, 2008 4:21:15 AM

aevm here are the marks with just the 4870x2


and


I'll get some games running as soon as i get them back off my friends

spathotan: The only reason i got the Xeon was because it was $200aus cheaper then the Q9550 when it first got realeased, and IMHO i don't think it's worth the money to upgrade from a Q6600 to any other CPU ATM, to me the Q6600 is still an AWESOME CPU. But if you were like me and came from a Athlonx2 4400+ and a P4 (Northwood) then the performance is just mind Shattering

Rangers: I think I remember reading somewhere from either Anandtech or Xbit Labs that the x2 never uses the full 2 gigs and that my resolution (1920x1200) there isn't really a Huge performance diff between the 512 and 1gb versions of the 4870....well with the games i play anyway

Thanks
October 10, 2008 4:33:10 AM

Oh I know the performance isnt really worth the money from Q6600 to Q9000. I should have mentioned this originally but my current plan is to migrate to a 45nm chip after i7 launches, im hoping the prices of current chips drop significantly by early next year. I just want to get a little bit more life out of this build, plus my Q6600 has some significant heat issues.

Back on topic, it looks like tri-fire works preety good....better than I had imagined. The 4870 added a good 8-11FPS to the GPU test, thats not too bad.
October 10, 2008 4:42:09 AM

well it's great for vantage but there was no change for WIC
i guess it's just a driver thing

Oh well at least i have bragging against my friends in Vantage since it seems like the only thing they care about..... I pity those people who think that 3DMARK is what makes or breaks a system....
October 10, 2008 6:14:44 PM

any other games benchmarked at mate?
im about to get a HD4870 1Gig with plans to purchase a HD4870X2 in 6 to 8 months when it becomes afordable. to pair them up
October 10, 2008 6:46:18 PM

The 4850/4870 both only have 256 bit memory interfaces which limits them to addressing 512KB. Adding the extra 512KB allows them to increase memory throughput though. Technically it uses the whole 1gb to gain throughput but can only address up to 512KB at any given time. The 280 has a 512 bit interface so it can fully address 1gb. The 8800GTX has a 384 bit interface and can address 768kb. Whatever the bus width is times 2 is the amount of memory the card can address. There were accusations of fraud when some 8800GT/9800GT manufacturers were putting 1gb on a 256 bit interface but they were just using the same technique ATI is using now.
October 10, 2008 7:06:08 PM

anartik said:
The 4850/4870 both only have 256 bit memory interfaces which limits them to addressing 512KB. Adding the extra 512KB allows them to increase memory throughput though. Technically it uses the whole 1gb to gain throughput but can only address up to 512KB at any given time. The 280 has a 512 bit interface so it can fully address 1gb. The 8800GTX has a 384 bit interface and can address 768kb. Whatever the bus width is times 2 is the amount of memory the card can address. There were accusations of fraud when some 8800GT/9800GT manufacturers were putting 1gb on a 256 bit interface but they were just using the same technique ATI is using now.



yes but ati use gddr5 and this compensates for the bandwidth limit on a 256bit interface
a c 107 U Graphics card
October 11, 2008 2:31:08 AM

Lets all remember how much difference the HD2900's 512 bit memory interface made :) 
November 12, 2008 12:44:35 PM

i cant see the pictures of the results? was the 4870x2 with 4870 crossfire that good or did they not complement each other??

I have a 4870 512mb and would like to have the 4870x2 in crossfire but i need to know if they go well together or it starts to bottle neck the extra preformance?
!