Upgrading existing system, need advice

I have a eMachines comp that I plan to switch to a bigger case so I can upgrade the psu and graphics card. Specs are listed below. Wanted advice on which graphics card would perform well with this particular motherboard. Also any advice on psu and case would be helpful. Budget is around $250-$300. Mainly planning on playing League of Legends and WoW, plus some older RTS games I cant seem to get away from :lol: Thank you for your responses. Cheers!

eMachines EL1852G-52w Pentium Dual-Core 3.2 GHz Small Form Factor PC

General Features:
Microsoft Windows 7 Home Premium 64-bit pre-installed w/CoA
Intel Pentium Dual-Core E5800 3.2 GHz processor
2 MB L2 cache, 800 MHz FSB, Intel Virtualization Technology (VT-x), Intel 64, Idle States, Enhanced Intel SpeedStep Technology, Thermal Monitoring Technologies, Execute Disable Bit
Intel G41 Express Chipset
3 GB DDR3 RAM (4 GB maximum)
1 Terabyte (1TB) GB SATA hard drive
Integrated Intel GMA X4500HD graphics
Integrated audio
Integrated 10/100/1000 Gigabit Ethernet LAN
Multi-in-One memory card reader
Power button

Supported Media:
Secure Digital (SD)
Memory Stick (MS)
Memory Stick PRO

Motherboard Features:
One (1) PCI Express x16 slot
One (1) PCI Express x1 slot
Two (2) SATA ports (occupied)
Two (2) 240-pin DIMM sockets

220-watt power supply (100 - 240V, 50/60Hz)

Unit Dimensions:
10.4 x 3.9 x 14.6-inches (H x W x D, approximate)
2 answers Last reply
More about upgrading existing system advice
  1. If you just buy a new graphics card then your CPU will bottleneck it.The only way to avoid that is by buying a new CPU.And to do that you need to buy a new motherboard as well.Then the new motherboard will nee new ram so youre looking at a whole system upgrade.

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    CPU: Intel Core i3-2100 3.1GHz Dual-Core Processor ($104.99 @ Newegg)
    Motherboard: ECS H61H2-M12 Micro ATX LGA1155 Motherboard ($39.99 @ Newegg)
    Memory: Crucial Ballistix 4GB (2 x 2GB) DDR3-1866 Memory ($24.99 @ Newegg)
    Video Card: Asus Radeon HD 6770 1GB Video Card ($87.86 @ Newegg)
    Case: BitFenix Merc Beta (Black) ATX Mid Tower Case ($29.99 @ NCIX US)
    Power Supply: OCZ EliteXStream 800W 80 PLUS Certified ATX12V / EPS12V Power Supply ($24.98 @ NCIX US)
    Total: $312.80
    (Prices include shipping and discounts when available.)
    (Generated by PCPartPicker 2012-09-14 05:49 EDT-0400)

    This is what i think you should buy.It's a HUGE improvement over your current PC.
  2. Any $120 GPU will better than the integrated intel graphics that you are using now. I like the Antec 200 or 300 cases and buy a matching 500 to 600 watt Antec PSU and you should be good to go.
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