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Cheapest CPU to withstand 2x 7950 w/out bottleneck?

Well my budget is £300 for CPU + mobo. The mobos just gotta be good at crossfire with 2 7950's and have sata 3 which is all i care about.


Should I get Gigabyte SKT-1155 Z77X-D3H and Intel Core i5-4670K 3.40GHz or can I get better for my money?

It's just mainly for multiple monitor gaming and 3d gaming
 
Trojan Horse said:
Should I get Gigabyte SKT-1155 Z77X-D3H and Intel Core i5-4670K 3.40GHz or can I get better for my money?
Click to expand...

No because that motherboard has the wrong socket for that CPU :D.

As above, an i7 will reduce the bottleneck in some games but for the most part a clocked i5 will do the job fine.
 
Could always go for a 4670K and Z87 board.
That'll reduce the bottleneck massively.

If you ever need extra grunt, during the refresh next year bung in an i7.
 
could save some pennies choosing a h87 board and 4670k cpu

but you'll be limited to 1600mhz ram speed due to the h87 chipset,the cpu would overclock just fine

EDIT: not sure what the pci-e speeds are with xfire on h87 either,you would need to read up on it
 
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OK,

well I have corsair vengeance 8GB ram 1600mhz anyway

I am replacing CPU and mobo together and adding a new 7950, to later crossfire it by adding another 7950

so can anyone simplify this for me which mobo and cpu option would be best for right now to not get bottlenecked by 2 7950s

i currently have a 500w OCZ PSU and will upgrade on the second 7970, but will the i5 board be power efficient enough?
 
for budget board you could get this

http://www.overclockers.co.uk/showproduct.php?prodid=MB-447-GI&groupid=701&catid=5&subcat=2575

and cpu

http://www.overclockers.co.uk/showproduct.php?prodid=CP-472-IN

or the same cpu and spend more on the board by going for a z87 board

http://www.overclockers.co.uk/showproduct.php?prodid=MB-434-GI

both boards will overclock the cpu and support xfire but the z87 will run 1600mhz+ and the h87 will only run upto 1600mhz ram,no higher

make note the h87 runs two cards at

16x and 4x

and the z87 runs two cards at 16x and 8x

so you might see a performance drop with xfire on the h87
 
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OK,

So I got this picked out: Intel Core i5 4670K & Gigabyte H87-HD3

Can anyone tell me if this would be bottlenecked by 2 7950s and if I could run 1 7950, this motherboard & an i5 4670k @ oc speed?

Also what speeds could I get out of the i5 on this mobo with a hyper 212 Evo

edit: lol just refreshed and the same options i picked out have been picked out

ok well i've only built AMD boards and will be replacing my system with these nice intel products and an AMD card... do you think it will be hard?
 
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if you can afford the z87 oc board then id choose that for xfire as it has a faster pcie speeds with two cards,the h87 would be better suited to a single card

and yes it will run everything fine and overclock fine

only issue is the h87 runs the second xfire card at 4x pcie speed instead of 8x on the other more expensive board,again not an issue with a single card
 
yeah its expensive,but you would see better performance in xfire

that board you linked has same pcie speeds as the h87 board for two cards

idk how much performance hit you'd take going 16x4 compared to 16x8x

Anyone have a rough idea?
 
wait so the second card will only be half of the first cards performance, and i'm shelling 170 for that?

in total i'd have to spend 355.. i mean it's much more out of my budget than i can afford but i can make do

so do i have to reset windows 7 or anythign complex? from amd to intel switchover anything i should know about or just simple swap and swap
 
you might get away without re installing,win7 will find/install the needed drivers,but to 100% guarantee no issues you could do a clean install

you wouldn't lose half the performance I think around 5 or 10%
 
Alright

Well do you have any suggestions of how I can... say for example move my programs to a 3tb drive and then move back to a clean windows 7 install? and reinstall but without redownloading?

I'm asking because I have a 3tb hard drive, and 3meg internet speed. Bf3 premium is like 50gb that's like 6 days continuous + all of my other crap
 
you can clone your windows drive to the 3tb,format your windows drive and do clean install then drag/drop what you need back to your windows drive,the programs would need re installing though
 
I would do that but have no idea how I can reinstall other programs that have been drag and dropped in

I'll ask the question on a win 7 forum

I don't have a dvd drive so I install win7 from USB, are there any other drivers I should install (e.g grab motherboards drivers & cpu drivers & gpu drivers and put it on my usb stick?)

hopefully this expensive setup will turn into one heck of a badass computer!
 
no win7 will install all needed drivers,

you can then install all the latest drivers off mb makers website

use macrium reflect to clone your current drive to the 3tb
 
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