Things you should know before you Overclock this card.
What i found is:
299-2E210-201SA only has Hynix , 015.025.000.001.000000 Uses Stock V1.5
299-2E210-204SA only has Elpida , 015.025.000.099.000000 Uses Stock V1.6 What ever you do NEVER Mix these 2 bioses in order to FLASH them if you do you LOST your video card.
Now since i have the 204SA
i'll explain a few basic things
if you look over at http://www.elpida.com/pdfs/E1864E10.pdf
their Data sheet from the GDDR5 2gbits you see that the Vram requires V1.6 and is capable of 6.0GBS i am talking about the EDW2032BBBG-60-F since that is the one that is found on the Sapphire 7950 Vapor-x.
So Keep in mind that the memory voltage should not go over V1.648 Anything above that will destroy them.
Also 98 °C should be considered the maximum.
With Trixx 4.6.0 i was able to reach 1200mhz and 1500mhz Easily as stable "game-able" clock VDDC set to 1225. only on heaven benchmark 4.0 could i find several Extremely minor artifacts which indicates that i should fiddle a bit more with the VDDC either forward of backwards still figuring it out.
However 1250mhz core 1450mhz memory vddc 1231 seems to run even better.
I bought the Arctic accelero 7970 because the Vapor-x is Extremely noisy.
Even with 100% fan speed you barely hear it inside your case, it is a real work of art.
also with the Arctic aftermarket cooling package you get individual aluminum cooling blocks that you can glue with a special thermal glue in between.
Uder full load with a 1250 mhz Vddc over 1231 and 1450 memory
GPU: 55 °C
When it comes to Overclocking you should never compare, but just in case if you really wish to know
Bios P/N: 113-210PBBBG-V08
Msi Kombustor 2.5 (burn-in)
Heaven benchmark 4.0
3D Mark 11
Good luck with your overclocking!
Keep in mind that passing the 1.2 vddc your card will throttle (this is done by DESIGN nothing we can do about it). it runs okay but once every 6 hours you need to shut the the 3D application so your card and rest in idle for about 1 minute.
if you pass by the 6 hours of throttling you will notice milliseconds of freezing time that's all it will build up and can be very annoying.
I strongly recommend to remove the thermal tape from your GPU from stock coolers and replace it with aftermarket equipment.
The thermal tape provided runs your STOCK Vapor-x cools VRM 100 °C under loads this can permanently damage your memory once you start seeing discolored pixels or screen flickering try to refund your card as soon as possible.
I normally never post on forums or websites but since there is a "lack of knowledge" i decided to post some additional information.Edited by Xerpadon - 3/22/13 at 11:30am