Another build to look at,
PCPartPicker part list:
http://pcpartpicker.com/p/2hBG6
Price breakdown by merchant: http://pcpartpicker.com/p/2hBG6/by_merchant/
CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($209.99 @ Amazon)
CPU Cooler: Zalman CNPS10X OPTIMA CPU Cooler ($22.99 @ Mwave)
Motherboard: ASRock Z77 Extreme3 ATX LGA1155 Motherboard ($89.99 @ Newegg)
Memory: G.Skill Ripjaws Z Series 8GB (2 x 4GB) DDR3-2400 Memory ($64.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($59.98 @ OutletPC)
Video Card: Sapphire Radeon HD 7870 GHz Edition 2GB Video Card ($160.66 @ Newegg)
Case: Zalman Z12 Plus ATX Mid Tower Case ($49.99 @ Microcenter)
Power Supply: EVGA 600B 600W 80+ Bronze Certified ATX Power Supply ($39.99 @ NCIX US)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 8.1 - OEM (64-bit) ($89.98 @ OutletPC)
Total: $803.55
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-09 10:27 EST-0500)
You get a better cpu.You can overclock with this one.
Also a better motherboard to be able to overclock with.
You get a better gpu.
Also the possibility to upgrade to two gpu's=crossfire although that would mean a upgrade of the power supply too.
A faster but less big=1tb hdd.Do you really need 1.5tb? You can always add another one.
I took the liberty too change the case in favor of some parts.It's up to you whether you like this one or not.
All for about the same money.
With the next ram you could even be under your budget,
http://pcpartpicker.com/part/gskill-memory-f32133c9d8gxl
it's just so...red.
That would look like this,
PCPartPicker part list:
http://pcpartpicker.com/p/2hBVb
Total: $798.55
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-09 10:38 EST-0500)