Diamond 4870x2 Futuremark Overclock Testing

[guess2098]

Diamond 4870x2 Overclock Testing


FRONT and BACK, looks like a 3870x2 but with black PCB



Without heatsink, layout of the black PCB



RV770 chip, no different between 4870 and 4850



PLX CF bridge chipset



hynix GDDR5 32x32. this is rev 2 4870x2. the rev 1 4870x2 is using Qimada GDDR5




Testing Hardware Setup

CPU: Intel QX9650 ~ 4.45G
Motherboard: Asus X48 Rampage Formula
Memory: G.SKILL F2-9600CL5D-4GBPI.........REVIEW
Video Card: Diamond HD4870x2 850/1000 bios mod 1.45v
Power: TT 1200W
Hard Drive: G.SKILL SATA2 32GB SSD


Testing Software Setup

3Dmark2001
3Dmark03
3Dmark05
3Dmark06
Windows Vista 32bit Vantage

[AriciU]

Nice results. Right on par with 2 x 4870's CF'ed.

There is something wrong with 3dMark03 though. I remember testing about 2 weeks ago with 8.6 hotfix i think @ 4ghz and getting around ~95000 with the 4870's at stock speeds. Now i'm getting like you are, 85k @ 790/1100 @ 4500Mhz. Don't know what caused this massive drop, tried all drivers again, same score

Here's a screen (not my run) to prove my point. I was getting simillar results and something made it drop by 10k. Bet you would get the same if we figure out what's causing it.

[fubarswe]

Nice start.., sweet card! Congrats to having one! :-)

[elmor]

Looking good

Can you tell us what this IC says so we can get some vmods?

[K404]

Are the clockspeeds being mis-read by GPU-Z? Actual clocks are lower than default?

The scores look pretty good! Can you cinfirm those runs were at default GPU speed Denny?

[scooter.jay]

Looks sweet and some good scores but how much will the over price crew in the uk slap on this? Still looks like a good card.

[Nosfer@tu]

Looking good

Can you tell us what this IC says so we can get some vmods?

yes we need Vmods

[SIOUX]

Looks good Denny

[Oliver]

Looking good, sweet job...

Looking forward to further updates,
Keep pushing it.

[Lightman]

Denny what do you mean by

Video Card: Diamond HD4870x2 850/1000 bios mod 1.45v.........REVIEW

????

Is this also possible with HD4870 (non X2)??

[guess2098]

Danny what do you mean by ????

Is this also possible with HD4870 (non X2)??

4870 i can only make it run about 1.3v using bios mod. haven't test the new method of bios mod; which i did on x2 this time; on 4870.

[hiwa]

rock 03,05,06 waiting for retail cards


thanks for sharing info

[guess2098]

i have no idea but 95k on 03 air is really crazy tho...

Nice results. Right on par with 2 x 4870's CF'ed.

There is something wrong with 3dMark03 though. I remember testing about 2 weeks ago with 8.6 hotfix i think @ 4ghz and getting around ~95000 with the 4870's at stock speeds. Now i'm getting like you are, 85k @ 790/1100 @ 4500Mhz. Don't know what caused this massive drop, tried all drivers again, same score

Here's a screen (not my run) to prove my point. I was getting simillar results and something made it drop by 10k. Bet you would get the same if we figure out what's causing it.

[systemviper]

can't wait for the retail release,

[qballe]

tnx for share

[AliG]

4870 i can only make it run about 1.3v using bios mod. haven't test the new method of bios mod; which i did on x2 this time; on 4870.

what new method would that be? If that works that would be very beneficial for the rest of us. Do you know by any chance if the bios has built in over-volt protection or if CCC is preventing us from going above 1.23 v and 1.3 v for the 4850 and 4870?

[disruptfam]

wow !!! i can't wait to get 2 of these!!

[S1mon-]

What kind of power supply will be required to power that kind of baby

[Chickenfeed]

I'd wagger a 750+ in a overclocked quad system and 600+ in a dual core system ( perhaps only stock though ) I've ran 2 8800GTS with a Q6600 @ 3.6 on a 600 for a couple months.

[zerazax]

[H] ran 2 x 4870x2's with a 800W PSU so I bet a good 750 is enough

[twwen2]

what new method would that be? If that works that would be very beneficial for the rest of us. Do you know by any chance if the bios has built in over-volt protection or if CCC is preventing us from going above 1.23 v and 1.3 v for the 4850 and 4870?

+1 I'm curious now. This would be interestin to say the least.

[dennismagic]

4870 i can only make it run about 1.3v using bios mod. haven't test the new method of bios mod; which i did on x2 this time; on 4870.

This is a good news that bios Vol mod(1.3V) is possible now on 4870
Hope you can share your modded bios with us

[Astennu]

The HD4870 uses 1.27 stock. So that bump to 1.3 is not a mayor boost.

@Guess2098 thanks for sharing your scores !!

[Pt1t]

i have no idea but 95k on 03 air is really crazy tho...

could you run 2k3 to 850/1100 with cpu to 4ghz ?

[EXPANDER]

2X 4870 CF 3dmark2006 Score : 22200
SM3.0 Score 11k[/b]




3DMARK2005 SCORE: 25578



3DMARK2003 SCORE: 94334