Mohsin308 :
so a rx480 would be better with 15 2500 than i3 2120 with gtx 770?
Much better. The Rx 480 is faster and newer than a GTX 770. The i5 2500 is faster than an i3 2120.
Mohsin308 :
Would a rx480 fit in this pc or would i have to buy a new case http://imgur.com/a/OSJQn
No it would not fit. That case is a Small Form Factor (SFF). You want to avoid those like the plague. Very few GPUs will fit in that style case. Only very low end units.
As for a new case. What brand is that computer. Dell uses a proprietary layout. You are not going to get it into a new case unless you drill new mount points in the replacement case. It's not a Herculean task. Although it can be daunting if you aren't handy.
When it comes to buying a used computer. Buying a case is a losing proposition. Once you pay for the case you may as well have paid the extra money initially for a used computer with the proper case. Unless you want a new case for aesthetic reasons or got a killer deal.
You want to avoid Small Form Factor (SFF) cases. A dead giveaway is the optical drive is mounted parallel rather than perpendicular to the height of the case. You also have to be wary of a BTX layout. BTX is generally mounted on the left. The problem being many have the PCIe x16 slot as the first slot. Making a double wide card impossible. You want it to be the second slot in this layout.
Here is a good deal on a desktop
Dell Optiplex 7010
- Core i5-3570 3.4Ghz
- 4GB RAM
- 500GB HD
- Windows 10 Pro
http://www.ebay.com/itm/Dell-OptiPlex-7010-Mini-Tower-Intel-Core-i5-3570-3-40-GHz-51BC-/192087538710?hash=item2cb94f3c16:g:jfMAAOSwo4pYiRIn
Then upgrade it.
PCPartPicker part list /
Price breakdown by merchant
Memory: Kingston Predator 8GB (2 x 4GB) DDR3-1866 Memory ($53.99 @ Newegg)
Video Card: Asus Radeon RX 480 4GB Dual Video Card ($169.99 @ B&H)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($47.89 @ B&H)
Total: $271.87
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-03-24 09:53 EDT-0400
If you want to save money on memory. You can look at buying used memory. It must be DDR3, at least 1600mhz, 240 pin, non-ECC (don’t get ECC/server memory, maximum size 4GB per module, up to 4x4GB (16GB Total).
I know the Dell Optiplex 390, 3010, 3020, 790, 7010 and 7020 mini tower (MT) models will work. They just need upgrades. The 700/7000 series has more RAM slots so is better and usually runs the about the same price.
You don’t have to limit yourself to Core i5/i7. You can also look at Intel Xeon. So if you can get a good deal on a Dell Precision T3600 or T3610 or HP Z420 with a Quad Core or 6 Core Xeon of at least 3.2Ghz. Those are good buys as well. They should already have a PSU which will support the Rx 480 and will likely already have enough RAM.
This HP Z420 is ready to go. All you need is the Radeon Rx 480. You can upgrade Windows to Windows 10. Although you will likely want a larger hard drive. This is actually a much faster and far more upgradeable system.
http://www.ebay.com/itm/HP-Z420-Intel-E5-1620-3-6GHz-8GB-250GB-HDD-FirePro-V4900-Win-7-C-Grade-/142323527040?hash=item212324ad80:gzUAAOSwax5YucZS
PCPartPicker part list /
Price breakdown by merchant
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($49.33 @ OutletPC)
Video Card: Asus Radeon RX 480 4GB Dual Video Card ($169.99 @ B&H)
Total: $219.32
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-03-24 10:23 EDT-0400
Here is an even better HP Z420 Deal. All you need to do is add the Rx 480 and perform the free Windows 10 updgrade. The 750GB HD should hold you over for a while.
http://www.ebay.com/itm/HP-Z420-Intel-E5-1620-3-6GHz-8GB-750GB-HDD-FirePro-V4900-Win-7-C-Grade-/122408516398?hash=item1c801dbb2e:gzUAAOSwax5YucZS