New Build for editing - GPU help

[jargus]

I'm about to get a new PC mainly for video editing but also for some PC gaming. A friend works at the microcenter near me and is helping me get a lot of the parts for cheaper. I plan to get the parts over the next few weeks and build by the start of March. I already have a case, mobo, and CPU. I'm getting the remaining components within 2 weeks from now. When doing a final verification, I noticed that the GPU I selected requires PCIe 3.0 while my mobo only supports up to 2.0. So far I haven't been able to find video card with similar capabilities that supports 3.0.

Mobo: SABERTOOTH 990FX R2.0
Case: Zalman Z11 Plus HF1 Mid Tower
CPU: AMD FX 8320 Black Edition 3.5GHz

Desired GPU: Gpu : 02G-P4-2662-KR NVIDIA GeForce GTX 660 Superclocked 2048MB GDDR5
http://www.microcenter.com/product/400675/02G-P4-2662-KR_NVIDIA_GeForce_GTX_660_Superclocked_2048MB_GDDR5_PCIe_30_x16_Video_Card

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RAM: Crucial Ballistix Sport 16GB DDR3-1600
http://www.microcenter.com/product/385182/Ballistix_Sport_16GB_DDR3-1600_%28PC3-12800%29_CL9_Dual_Channel_Desktop_Memory_Kit_%28Two_8GB_Memory_Modules%29

PSU: Corsair HX750 Modular http://www.microcenter.com/product/399155/HX_Series_HX750_750_Watt_ATX_12V_Modular_Power_Supply

SSD: Samsing 840 128GB http://www.microcenter.com/product/402607/840_Pro_Series_MZ-7PD128BW_128GB_SATA_60Gb-s__25_Internal_Solid_State_Drive_%28SSD%29

Optical:Lite-ON 24X SATA DVD Burner - OEM
http://www.microcenter.com/product/322335/Lite-ON_24X_SATA_DVD_Burner_-_OEM

Cooler: http://www.microcenter.com/product/404942/Hydro_Series_H60_High_Performance_Liquid_CPU_Cooler

 

[Spartin503]

1. The graphics card doesn't require PCI-e 3.0, but it can run on PCI-e 3.0, but it's backwards compatible with 2.0.
2. The only motherboards that have PCI-e 3.0 are motherboards for intel CPUs. So there aren't any motherboards for your CPU that you can get with PCI-e 3.0.