Yes its one of those 'fun' hypothetical rather than real advice needed threads but go with it! You can change one component of the person above you in the thread that would constitute the best bang for buck upgrade based on the rest of their system. Be realistic, don't just put GTX 690's for everything! Go!
System: Case: Corsair Carbide 500R C MB: GIGABYTE GA-Z77-D3H CPU: i5 3750K CPU Cooler: Be Quiet Dark Rock Advanced GPU:HIS HD 7950 IceQ BOOST 3072MB PSU: Be Quiet! 630 Watt Pure Power L8 80 Plus Bronze Modular Memory: Crucial Ballistix Sport 16GB (4x4GB) DDR3 1600MHz SSD 2X128GB Samsung 830 Audio Creative SoundCore 3D Mouse Mionix Saiph 3200 Keyboard SteelSeries 6GV2 Fan Controller NesteQ Fan Max A real mechanical keyboard! Your whole system is pretty decent IMO! The only thing I wasn't sure on was the sound card..? Maybe it's just one I haven't heard of.
Here is me sound card:- http://uk.store.creative.com/sound-blaster/sound-blaster-recon3d-pcie/1-20885.aspx The SteelSeries is a mecha keyboard, what's the problemo?!?!
Ah, that is one sweet looking sound card. From what I gather from those who've used the Steel series and other mechanical keyboards - The steel series is half way between mechanical and membrane it terms of feel? :note: not from personal experience. I'm simply picking on this because the rest of your build looks excellent!
Mine is just sooo easy! Bindi should get a nice big EVGA badged GTX 690! It is the only GTX 690 brand with an LED controller after all!
Will post in there later for you! Top work Upgrade-ability for later - potential to run GTX 670 SLI later!! , It's gold rated and I got it cheaply on the marketplace too! Anyway, aren't PSUs most efficient at 50% capacity or something?
True, although yours most likely won't reach that even with the 2nd card, still anything less would be a downgrade... Fuus, do you have an SSD?
ASUS D2X would be perfect for surround, not so hot for headphones. Also exude a little more power from that 800W PSU as you'll need a floppy connector!
Right GeorgeStorm, what's this about downclocking a GTX 570? If you bought it from new then get that replaced or refunded, just read my signature thread. If you score a refund then get a GTX 670; handle those two monitors very nicely!