Please i have no idea which is better the 1st set is about 1900 and the second set is about 1450
PROCESSOR 2nd Generation Intel® Core™ i7-3820 (10M Cache, Overclocked up to 4.2 GHz) edit
OPERATING SYSTEM Windows® 7 Home Premium, 64Bit, English edit
MEMORY 16GB (4 X 4GB) Quad Channel DDR3 at 1600MHz edit
VIDEO CARD Dual AMD Radeon™ HD 7870 2GB GDDR5 edit
HARD DRIVE 500GB SS Hybrid MAIN + 1TB 7200RPM Storage edit
MONITOR No Monitor edit
SOUND CARD Integrated 7.1 Channel Audio edit
OPTICAL DRIVE Single Drive: 24X CD/DVD burner (DVD+/-RW) w/double layer write capability   for 1900

and

ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner - Bulk, COOLER MASTER HAF 912 RC-912-KKN1 Black SECC/ ABS Plastic ATX Mid Tower Computer Case, Thermaltake Black Widow W0319RU 850W ATX 12V v2.3, EPS 12V v2.91 CrossFire Certified 80 PLUS BRONZE Certified Modular Active ..., Arctic Silver 5 High-Density Polysynthetic Silver Thermal Compound AS5-3.5G - OEM, Patriot Intel Extreme Master, Limited Edition 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model ..., GIGABYTE GA-Z77X-UD5H LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard, Microsoft Windows 7 Home Premium SP1 64-bit, OCZ Agility 3 AGT3-25SAT3-120G 2.5" 120GB SATA III MLC Internal Solid State Drive (SSD), HIS H795QMC3G2M Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card, AMD Gift coupon: Crysis 3 + Bioshock Inf. Intel Core i7-3770K Ivy Bridge 3.5GHz (3.9GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 4000 I'm going to clear up the specifications a bit.

1.
i7 3820 4.2 GHz
2 X Radeon 7870
16GB DDR3
Two hard drives (total of 1.5 TB)

2.
i7 3770k 3.5GHz
Radeon 7950
16GB DDR3
120GB SSD

This is a difficult choice.

The 3770k CPU is newer, but the two are similar in performance.
http://www.cpubenchmark.net/high_end_cpus.html
The benchmarks are about 600 points off (not counting the overclocked 3820)
I'd say they offer the same amount of performance.

Both computers have the same amount of RAM.

Computer 1 has significantly more storage space than computer 2 (1500GB as opposed to 120GB).
For this, I would LEAN toward computer 1. However, an ADDITIONAL hard drive is not that expensive.

The graphics on the first computer is definitely better than the second one.
The Radeon 7870 clocks in at 4202 and the Radeon 7950 clocks in at 4540.
http://www.videocardbenchmark.net/high_end_gpus.html
However, keep in mind that computer 1 has TWO of these graphics cards. That would definitely be the better choice.

Just looking at these specifications, I would go for the first computer.

However, we should know more information.

What are the prices of these computers? How far apart are they?
What do you plan to do with these computers?please any advice is extremely neededthe first computer is $1900 and the second is $1450 mind you this is before taxI plan on using them completely for gamingBoth computers will offer extremely well gameplay. They will knock out any video game on maximum graphic settings.

In my opinion, both computers are equally as powerful.

Personally, I would go for the first computer. The dual graphics card and extra storage space is very useful.

If you don't want to spend all of $2000, the second computer is just as good. The only noticeable difference would be storage space.thank you very muchGood luck!

If you have anymore questions, feel free to post again.