HD4870 CrossFire Yes/No?

[Ast3r]

Hi guys I want to buy a new GPU and I only have 150 quid to spend.I was thinking to buy another HD4870 and go crossfire and also another PSU since mine is only 500W.Do you think its worth the upgarde?Also could you spec me a good PSU for crossfire 70 quid max.

 

[kmufc77]

Hi guys I want to buy a new GPU and I only have 150 quid to spend.I was thinking to buy another HD4870 and go crossfire and also another PSU since mine is only 500W.Do you think its worth the upgarde?

Screen resolution?

 

[Ast3r]

1680x900.And about the PSU....which one of these?

OCZ ModXStream Pro 700w

Corsair TX 650W

 

[kmufc77]

1680x900.And about the PSU....which one of these?

OCZ ModXStream Pro 700w

Corsair TX 650W

what make of 500w psu is it? as if its a decent one it will be fine for 4870 crossfire

 

[kmufc77]

what make of 500w psu is it? as if its a decent one it will be fine for 4870 crossfire

You will see a steady increase with xfire at that res

 

[Ast3r]

The PSU is an OCZ ModXStream 500W.

 

[marscay]

I'd sell the 4870 and get a couple of 5770's.

Won't need another PSU and you'll get better performance when clocked, plus they're quiet.

 

[JeffyB]

I'd sell the 4870 and get a couple of 5770's.

Won't need another PSU and you'll get better performance when clocked, plus they're quiet.

My thoughts as well, i have been thinking of doing it myself for a while now.

 

[magicroundabout]

I'd sell the 4870 and get a couple of 5770's.

Won't need another PSU and you'll get better performance when clocked, plus they're quiet.

do this. i had two 4870's in xfire and the heat generated was very noticable.
these run cooler and are less power hungry. plus performance is very good

 

[bhavv]

I agree with selling the 4870 and grabbing a pair of 5770s.

The power consumed by two 4870s is immense - plus they use 90 watts each in Idle as opposed to 18 watts each on the 5770.

 

[BeeP]

Won't get that much for his old 4870 now though so he will still have to find a good 180 quid or so for 2x 5770's.

Might save it on leccy I guess but it's still around £80 more than just another 4870.

 

[magicroundabout]

he'll get £60 + his £150 which he's already got = £210

he'll only need another £40

 

[JeffyB]

Even less if he gets the powercolour on TWO or shops around.

 

[Ast3r]

So do you actually think that I can get more performance with 2x5770 than with 2xhd4870?.2xhd5770 would cost me 275 quid with shipping and VAT.With that kind of money I could ge an HD5850.

 

[BeeP]

A new 4870 would be about £100

2 new 5770's cost around £250, even with £60 from his old card that leaves £190 still needed. This is £90 more than just putting a new 4870 in would cost. If he already has £150 yes that leaves only £40 to find....it's still £90 more though.

 

[marscay]

Factor in that he might need another PSU with CF 4870 plus the extra heat/noise and better performance with 5770...it's easily worth it.

 

[Bones]

get the 5770's, you can save the extra money off your electricity bill.