Change clock and voltage could be done even in the Go bios, so which difference do you find applying the GTX one?
Timings won't change so much benchmark results, and clock range won't change with different timings.
And most of all it could be very risky...
Jack there's no Rivatuner screen that let you see real and USEFUL memory clocks if it doesn't get you to more performance.
Andre gets a better score than yours with the same core and ram set to 950 Mhz..
I could even apply 820 Mhz to my DDR, but I do get a worse score in benchs than when I stay about 780-790 Mhz...that's because there's no way to go beyond hardware limit of my DDR, next to that there's only performance loss.
So, the fact that you could even set 1050 but it's not USEFUL is the demonstration of that DDR3 limit.
The fact that you already admitted that limit mismatches with your enthusiasm about 1050 Mhz...
It's not a matter of numbers, just performance!
So, GTX DDR3 are totally another kind of DDR3, that's my opinion.