5850 or 5870 potential system bottleneck?

[dunno]

I currently have a opteron 170 @ 2.7Ghz in an asus a8n32sli deluxe and 4Gb of ram. I was wondering if my system would be that much of a bottleneck for a 5870 or 5850. I currently have an 8800 GT 512 which I will be using as a physx card once the 5850/5870 is in.

I was also planning on buying a Seasonic m12d 750w, would that psu be powerful enough for crossfire in the future? (i will upgrade mobo etc when I get to that stage)

I game at 1920*1200

 

[elpedro]

Most likely anything under 3GHz will have a higher potential of bottlenecking a powerful graphics card such as the 58*0.

Having said that, its not like you won't see a boost in performance, but maybe its worth upgrading the rest of your platform before the graphics? And yes, 750w is sufficient to power two 5870s.

 

[antran]

the psu is powerful enough, but your current system is not up to it.

 

[Toastor]

Your processor will be a bottleneck for either card, but framerates will still be very playable at that resolution. The PSU will be more than fine for crossfire in the future.

 

[drakt]

you'll have to do some research but im pretty sure i saw some news about Nvidia disabling Its GPUs if an ATI card was present in a system.

specifically to stop people using The cards for simply PhysX.

 

[TheMorningStar]

there is talk of cracked drivers in regard to physics.

i would not be conserned with the card beineg bottlenecked to much. but i would perhaps think about what the £300+ you spend on a 5870 could also be used for...

PhenomII 965 £160
MSI 790FX-GD70 £130
4gb of quality DDR3 ram £70

that comes in at £360 a bit more than a 5870 true but then you have the re-sale value of your old kit...

opteron 170 £40
a8n sli deluxe £35
4gb of ddr1 (4x1gb sticks) £60

think you would get a better boost from that tbh and the gfx card is probably the most volitile item in terms of value depreciation so i woudl always say get that item last

ps an i5 system isnt far off that costing also

 

[dunno]

cheers gor the replies guys.

I did some research on Nvidia disabling the gpu if the primary is an ATI card and got this http://forums.overclockers.co.uk/showthread.php?t=18062149 so that wont be a problem i think.

I was thinking of upgrading my system completely but I would keep the old stuff and give it to my brother.

I think I'll go for the graphics card upgrade now as the games i play currently are running around 30-40 fps and I kind of want a quick fix. Hopefully the 58*0 will last a while and with a beefier psu (at the moment i have a hiper type R 580W psu) I can crossfire it in the future once new hardware has been pucrchased.

 

[fornowagain]

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