2900XT Testing & Scaling

[LiViNgL@RgE]

Been playing with my 2900XT 512Mb Card & have found some interesting things

All test where conducted using the following settings

Catalyst 7.10 Beta was the driver used & LOD +3 used for all tests

The main setting that helps with high clocks in ATITool is this one

Memory & core scaling all stock volts on 2900XT & cooled by Swiftech MCW60

Below tests are 3DMark 01 Nature (This is my favourite game )

Mem Speed--------Core @ 806----------------Core @ 874----

------------ PCI-E @ 100--PCI-E @120--PCI-E @ 100--PCI-E @120

999-------------665.0-------669.1---------696.6-------703.2

1017------------669.6-------674.1---------703.2-------710.4

1035------------675.5-------679.7---------708.8-------715.3

1053------------676.9-------681.8---------713.7-------720.6

1071------------679.8-------685.2---------718.3-------724.5

1089------------681.5-------687.3---------721.6-------729.0

1107------------682.8-------689.1---------724.5-------730.7

1125------------683.5-------690.2---------726.1-------733.0

1143------------684.7-------693.3---------727.7-------734.2

1161------------686.2-------694.6---------730.9-------735.3

It looks like the timings on the memory get tighter at this point (Like a strap change)

1179------------694.1-------700.2---------738.6-------744.9

1197------------684.2-------698.1---------735.3-------747.5

At 1179 & 1197 I get super bad artifacts accross the screen! I don't know if the card is changing the timings or ATITool! I just wish the software or bio's were available to use these cards to thier full potential

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More tests will follow

 

[stocky]

Interesting - is it possible to adjust the timings/ strap manually (Bios Flash, perhaps)?

 

[LiViNgL@RgE]

Interesting - is it possible to adjust the timings/ strap manually (Bios Flash, perhaps)?

Hopefully if Rabit is ever released for 2900 cards!!! I know this cards got alot more in the memory just need to tweak the timings like I did with 1900 series bios which gave an extra 2-3% boost in some benches!!!

 

[sacha35]

I dont know why it is a big secret for software, i mean these cards have been out some time now so there should be the software/flashing tools avalible for all to use then just a few top benchers.

I wish i had known about the tweeks last night mate before my Raptor died, had the system on My S/S aswell and was going to start pusing it some, i was can see a big improvemnt in your bench with Canyon Flight, even though i was running higher clocks on the CPU i was know where near your bench results.

 

[Thickbrit]

Some nice in depth testing there LL,scaling seems pretty linear.I still regret not having something ati flavoured to play with.

 

[advancedkill]

Post pics of ur 2900 and cooling please!

 

[LiViNgL@RgE]

Testing voltage to prove my point about the timings adjusting themselves!! Check out the memory voltage at these speeds! Only 1.900V fully stable :O now where's the software to adjust the timings because i'm betting 1300Mhz DDR would be possible with some tweaking

 

[LiViNgL@RgE]

Post pics of ur 2900 and cooling please!

I just have a 120mm fan blowing over it with a MCW60 waterblock on the core