0. XFX R7850 Double Dissipation Black Edition
1. stock VDDC: 1.213V
2. max by TriXX: 1.213V
3. Black Edition stock 975/1250 @ 1.213V.....................................5718 (CCC 12.8)
4. Black Edition OCed 1200/1400 @ 1.213V (+20 powertune)...........6671 (CCC 12.8)
I just got my XFX R7850 DD BE. It is factory OCed to 975/1300 with a stock voltage of 1.213.
Sapphire TriXX (using v4.3) is the only utility that is able to control my VDDC and reports that 1.213V is the max as it is.
Question 0: What version 7850 do you have?
Question 1: What is your stock voltage?
Question 2: What is your maximum voltage allowable by TriXX? (If you're using another utility, please tell)
I don't play games often (have a short list waiting to be installed) and I run dual 1280x1024 for normal usage. I currently have the card downclocked to 430/625 @ 839 mV. I am actually waiting on HandBrake to finalize its implementation of OpenCL transcoding to put this card to work.
I briefly ran 3DMark11 (basic). The following are Graphic Scores only:
Black Edition stock 975/1250 @ 1.213V.....................................5718
Black Edition OCed 1200/1400 @ 1.213V (+20 powertune)............6671. As you can see, 3DMark11 does not accurately report clockspeeds yet.
---This is a full 45% improvement over my old HD5870 OCed @ 900/1300!! (was never able to try TriXX on it before selling, so don't know the max voltage).
Question 3: What is your 7850 scoring on 3DMark11 at stock speed, factory OCed or otherwise?
Question 4: What is your 7850 scoring on 3DMark11 at max OC? and how far have you been able to push it?
I'm going to see if I can push the card to 1250 or 1300C later this week but I'm looking for some reasonable target figures before I try it. I consciously spent too much for this card so I'm hoping it is binned well. I've seen other threads on OCing the 7850 on other forums, but they are rather long and tedious to follow. I didn't see one on [H]F so I hope we can start one here. I'm hoping to compile a list of realistic target speeds.
If you can answer Questions 0-4 already, please list them first to make things easier to read.
(full specs in sig)