$750 gaming desktop

$750 DDR3 Gaming Rig

In this guide I will build a $750 gaming PC. At this price, it will not hurt your pocket too much and will give you a great gaming experience. For this build I will use an AMD based system. Their Phenom 2 series processors provide great value. With DDR3 memory, you will be ready for the future.

Processor: AMD Phenom 2 720X3 - $120

This processor have been a favourite for this segment as it has good overclockability, 3 cores and a good amount of cache memory at a very good price. The Phenom 2 720 is clocked at 2.8GHz, has 1.5MB L2 cache and 6MB L3 cache. Its built on 45nm technology and can be easily overclocked to 3.6-3.8GHz with some decent air cooling.

Motherboard: GIGABYTE GA-MA785GMT-UD2H AM3 - $90

This board is one of the newest and is based on 785G chipset. It features 1 PCIe 2.0 slot, firewire and has 1 optical out too. It has onboard HDMI also(but we will not use that). This has SB710, so if you get lucky, you could unlock those locked cores using ACC.

Memory: Crucial 4GB DDR3 1333MHz (2x2GB)-$70

This memory will do the job for you. It’s not for some serious overclocking but good enough for gaming. The price of DDR3 memory is getting cheaper and you could find this for lower prices.

Graphics Card: PowerColor ATI Radeon HD 4870 1GB GDDR5-$135

PowerColor ATI 4870 1GB card should let you play most of your favourite games at high setting at high resolution. It comes with an aftermarket cooler too. It’s a good deal for $135, you could find it for less at local stores.

Power supply: CORSAIR 650W TX PSU- $100

Corsair makes some really good quality PSU’s and this is one of them. At 650W it has more than enough power to power your system. It has 2 6pin PCIe connectors that are required for the ATI 4870. Its 80plus certification means that it has really good efficiency.

Case: Cooler Master HAF922 -$100

This case looks very good and has good ventilation too. At $100, I would take this over the Antec 900. It has 5 5.25” external bays and 5 3.5” internal bays. It has 7 expansion slots and 2 200mm fans (LED front and top) and 1 120mm rear fan. It has got enough space for cable management too. Overall, this case is great for gamers.

Hard Disk: Western Digital Caviar Black 1TB - $95

This hard disk is pretty good for gaming. It has 32MB of cache and spins at 7200rpm. 1TB should be enough to hold all your games, movies and music. For $95 is a good deal.

CPU cooler : ARCTIC COOLING Freezer 64 Pro 92mm CPU Cooler- $28

This cooler is very good. It is a nice upgrade from a stock CPU cooler. This should reduce the temps by at least 10C. Buy this if you want to overclock your processor, else stay with the stock fan that comes with the processor.

Optical Drive: Samsung 22x DVD burner-$28

These days optical drives are so cheap, you can go for any brand. I have used Samsung so I will recommend it.


The total comes to around $750. It may sound a bit pricy, but then you are using DDR3 memory and with this PC you should be able to play most of you games at resolutions like 1680x1050 and above (well most games except crysis). I would recommend a 22” monitor with this rig.

So, at $750, you get a good looking and powerful machine.

Feel free to comment on this guide and tell me what you think about it.

Comments 5 comments

Jack White 6 years ago

Nice build, I have you a up rating! What do you think of my $750 gaming computer build? http://technomaniac.comze.com/?p=425


Geoff Jackson 5 years ago

When I saw the $750 price in the title I wasn't expecting much of a build but the spec is pretty damn good for this price. Certainly wouldn't turn my nose up at this gaming system. Nice.


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rajan1311 5 years ago from bangalore, India Author

thanks mate, the rig is now fairly outdated, you can get an even better setup now...


Geoff Jackson 5 years ago

Heh, yeah it's incredible how quickly components and rigs can get out of date now. Even back then when you posted this, the spec is still better than my current system!


rajan1311 profile image

rajan1311 5 years ago from bangalore, India Author

^Mate, I saw your websites, some systems are a little unbalanced, you open for advice?

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