Best 800$ gaming pc woth (OS included)

PCPartPicker part list: http://pcpartpicker.com/p/Tpb3f7
Price breakdown by merchant: http://pcpartpicker.com/p/Tpb3f7/by_merchant/

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($194.99 @ SuperBiiz)
Motherboard: Asus H110M-A Micro ATX LGA1151 Motherboard ($59.99 @ SuperBiiz)
Memory: Corsair Vengeance LPX 8GB (1 x 8GB) DDR4-2400 Memory ($27.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($48.77 @ OutletPC)
Case: Corsair 100R ATX Mid Tower Case ($39.99 @ Micro Center)
Power Supply: EVGA 700W 80+ Bronze Certified ATX Power Supply ($55.24 @ Amazon)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($85.49 @ OutletPC)
Total: $512.46
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-13 15:48 EDT-0400

there no video card in the build waiting for june for pascal cards.
 

Eximo

Titan
Ambassador
Something like this?

Could sacrifice storage speed and some of the other quality components for more GPU performance.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($194.99 @ SuperBiiz)
Motherboard: ASRock H170 Pro4 ATX LGA1151 Motherboard ($89.99 @ Newegg)
Memory: Kingston Savage 8GB (2 x 4GB) DDR4-2400 Memory ($49.99 @ Newegg)
Storage: Samsung 850 EVO 250GB M.2-2280 Solid State Drive ($87.10 @ Newegg)
Video Card: MSI Radeon R9 380 2GB Video Card ($173.98 @ Newegg)
Case: NZXT S340 (Black) ATX Mid Tower Case ($61.59 @ NZXT)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($55.98 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($85.99 @ NCIX US)
Total: $799.61
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-13 15:48 EDT-0400
 

DustinV

Honorable
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($194.99 @ SuperBiiz)
Motherboard: Gigabyte GA-H110M-A Micro ATX LGA1151 Motherboard ($53.99 @ SuperBiiz)
Memory: G.Skill Ripjaws V Series 8GB (2 x 4GB) DDR4-2133 Memory ($33.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($48.77 @ OutletPC)
Video Card: EVGA GeForce GTX 970 4GB Superclocked ACX 2.0 Video Card ($294.00 @ Newegg)
Case: Fractal Design Core 2300 ATX Mid Tower Case ($39.99 @ Newegg)
Power Supply: EVGA 650W 80+ Gold Certified Semi-Modular ATX Power Supply ($59.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($85.49 @ OutletPC)
Total: $811.21
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-13 15:50 EDT-0400
 

Eximo

Titan
Ambassador
Not a big change...

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($194.99 @ SuperBiiz)
Motherboard: Gigabyte GA-H170-GAMING 3 ATX LGA1151 Motherboard ($94.99 @ Amazon)
Memory: G.Skill Ripjaws V Series 8GB (2 x 4GB) DDR4-2400 Memory ($29.99 @ Newegg)
Storage: Samsung 850 EVO 250GB M.2-2280 Solid State Drive ($87.10 @ Newegg)
Video Card: Sapphire Radeon R9 380X 4GB NITRO Video Card ($219.99 @ Newegg)
Case: Thermaltake Versa H22 ATX Mid Tower Case ($34.98 @ Directron)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($55.98 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($85.99 @ NCIX US)
Total: $804.01
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-13 15:54 EDT-0400
 
Solution

Eximo

Titan
Ambassador


My understanding with that motherboard is that it shouldn't really be used for a gaming system due to lack of cooling on the very small number of VRMs.
 
A few tips:

1) Don't completely skimp on the motherboard. I recommend four, DDR4 slots, reasonable quality board.

2) Don't use a single stick of DDR4 memory to avoid a memory bottleneck.

3) I recommend DDR4-2666MHz, CL16 or similar memory (based on an article)

4) I agree WAITING if possible for an upcoming Polaris or Pascal video card. The HD530 iGPU in Skylake is okay for some light gaming (or you may have an older card for now).

5) *4GB minimum recommended for VRAM. We're not sure how much of a limitation 2GB will be in a year or so, but we do know the trend of using more VRAM has started to increase.

DX12 games are coming and these MAY use more VRAM, use the same, or even less. We just don't know.
 
http://pcpartpicker.com/p/fQqtXL

*This is NOT based on an $800 build (GPU not included and it's $650 after rebates), but due to the way budget works out at this price point you get an unfortunate dilemma:

a) better graphics (i.e. GTX970), or
b) better motherboard, case, CPU cooler

So when I played around with parts I discovered the Asus gaming board is a reasonably nice board for quality/features. Using a STOCK CPU cooler works for temperature but isn't ideal for noise under load so it's nice get a bit better there (and setup fan control motherboard software).

Anyway, I just wanted to show what spending a little more would give. We don't know the VALUE of the upcoming GPU's either so it may be that a $200 to $250 card is similar to a $300 GTX970 now.

After rebates etc, with a $250 Polaris/Pascal card that would put this closer to $900.