New GPU to replace GTS 450

Hi there!

I'm looking to replace my GPU in my gaming PC some time in the near future. As you may have guessed from the title, I'm running a GTS 450. It's the "ASUS ENGTS450" model to be specific. I quite like it and it was pretty cheap when I bought it.

However, the time has come for me to replace it. I don't really mind the brand. I'm happy to stay nVidia or move to AMD.

I plan to continue using this computer for modern games, and probably a lot of Blender Rendering for a friend.

The current basic specs are:

  • FX-8350
  • M5A97 LE R2.0 Motherboard
  • 8GB Corsair Venegance 1600MHz
  • GTS 450 1GDDR5, 925MHz OC'd
  • 550w PSU

My budget is anywhere up to £120-ish ($180), maybe a bit more. Note that the above motherboard does have 2 GPU slots and supports Crossfire, but I don't think it's worth buying 2 cheap cards for £120 over 1 card costing £120.

Thanks in advance :)


Also, if anyone doesn't mind, could someone do a quick comparison between nVidia and AMD GPUs? eg, if I was looking for a new card above for nVidia, I would go for an x50 or x60 model, most likely 650 because it's newer. I know with nVidia, the range is the first number (eg 500 series, 600 series), and then the individual cards get more powerful with the second number (eg 560 > 550), but I have no idea for this in terms of AMD graphics :(

If you are happy to spend an extra £10-15, you could get a 7850. I think it is a nice little middle-tier card, and the best one at that price, in my opinion.

Your question regarding AMD series cards. It is still numerical. 7990 > 7970 > 7950 > 7870 > 7850 > 7770.

This is the same for their 6xxx cards or any series card. E.g xx70 > xx50

HD 7850  

Or 650TI boost

Sounds pretty good.

Just another question before I go out and buy, is there any downside to buying an "OEM" version of this card? When I look this up on Google, (eg here versus another brand such as Sapphire, MSI, Gigabyte, ASUS? 

Are any brands particularly recommended?

I a gtx560m which is literally the laptop version, and I would recommend a 650ti boost 2gb and sli in the future, since that scales really well, and better than most in that price range


My motherboard only supports Crossfire, not SLI. 

Also, here is how the GPU slots work - would it still be worth using 2xGPU if they are only gonna be x4 speed?

1 x PCIe 2.0 x16 (blue) 
1 x PCIe 2.0 x16 (x4 mode, black)

It depends on what card you Crossfire.  Worse/cheaper/less powerful cards might be able to utilize it even with 4x, but any powerful card is gonna eat up all that bandwith by itself.  

Regarding a new card...I had a 450 as well, it was a tough card to replace.  In the end I opted to upgrade to the 660Ti since I think that the 7850 was higher priced at the time.  If I had to choose, I'd go with the 650 Ti Boost, but the 7850 isn't a bad deal either.  Or you could get something more proportional with the rest of your computer, like a 7870, 660 Ti, or 7950.  That 8350 will blow any $200 card out of the water.