The game is pretty CPU intensive. I suggest upgrading your CPU and adding 2 more gigs of RAM. You should be able to run the game on mid-low settings at a high resolution. I'm currently able to run it on my Sandy Bridge laptop (i5 2.5GHz) with the intel HD 3000 on low at 720p with minimal lag.
the 6850 will give you playable frame rates even at ultra I believe , I am talking about the card its self your CPU wouldn't handle those kinda settings . With out researching to much you can play pretty solid medium with some settings on high with that set up.
You will be able to run the game.
Go ahead and give it a shot and figure out just how well it runs on what you have.
Then you'll have a better idea how it runs and what you need to upgrade to get the type of game experience you want.
LG Black Blu-ray Drive SATA Model UH12LS28 OEM LightScribe Support - OEM
OCZ Vertex 3 VTX3-25SAT3-60G 2.5" 60GB SATA III MLC Internal Solid State Drive (SSD)
The SSD Would be OS only
I have the other parts for the system in my current case. The components above are upgrades to what I have.
Would that be enough to play Skyrim up ultra-high?
Benchmark comparisons of: Core i7 950 - 3.06GHz vs Core i5 2500K - 3.3GHz
In the majority of benchmarks the i5-2500K beats the Core i7 950. Im some case quite a bit.
The new 'Sandy Bridge' CPUs are about 15% faster clock per clock, so that 3.3Ghz i5 2500K would have a comparable clock speed of about ~3.795Ghz compared to the older i7-950.
i7-950 = $260
i5-2500K = $215
i7-2600K = $320
If you want to compare i7s compare use Core i7 950 or970 with the Core i7-2600K on that benchmark site.
Kingston HyperX 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1866 Plug n Play Desktop Memory Model KHX1866C11D3P1K2/4G
OCZ Vertex 3 VTX3-25SAT3-60G 2.5" 60GB SATA III MLC Internal Solid State Drive (SSD)
LG Black Blu-ray Drive SATA Model UH12LS28 OEM LightScribe Support - OEM
SSD has not changed, it is just OS.
I have win7 ultimate edition
and its 150 cheaper than a 1366 based intel system
Video card will be bought afterwards