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Will a 7750 kuma x2 be bottleneck a 4870 1gb

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March 3, 2009 3:50:43 AM

Im building a system for someone and the budget is kinda of limited but he wants a 4870 with his kuma 7750 x2 . Do you guys think that the cpu will bottleneck the 4870 if so how bad? am i better off with a 4850 or should i get the 4870
a c 83 à CPUs
March 3, 2009 4:53:48 AM

Your pairing a low end cpu with a high end gpu, of course there will be some kind of bottleneck. I honestly feel my X2 7750 is some what of a bottle neck to my 4670 in some more cpu intense games. Left4Dead for example doesn't seem to care if I run the game 1680x1050 or 1280x800, I get an almost identical frame rate during intense battles.
a b à CPUs
March 3, 2009 4:59:24 AM

Yes ... get a faster CPU or your 4870 is probably a bit wasted.

A 4850 would be a better choice and stick the change into some more ram, or a better cooler so you can overclock the cpu a bit.
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a b à CPUs
March 3, 2009 5:02:12 AM

If you want to skimp on a cpu, get an E5200 and OC it. It can keep up with a 4850. The psu is also a big factor when choosing a video card.
March 3, 2009 5:58:38 PM

I'm not sure if it will fit into the budget but, as suggested, the E5200 is faster than the X2 7750, especially when overclocked.

The HD 4850 isn't a huge power hog, and with a relatively normal system like the E5200 mentioned above you'll be fine with a quality 450W PSU. I used the PSU Calculator Lite v2.5 on an E5200 @ 3.0/1.3v/100% TDP, HD 4850, 2 sticks DDR2, 1 SATA, 1 DVD+-RW, and 2 120mm fans. The actual draw on a basic system like that should be about 280W unless you massively OC the CPU and GPU. The HD 4870 added about 20W. I haven't checked market prices in months, but the Corsair 450VX is a good PSU with plenty of amperage on the 12V rail.

-mcg
March 3, 2009 6:32:39 PM

yes, low-end cpu will limit that ultra powerful gpu
March 3, 2009 9:30:16 PM

overclock his kuma above 3, and get the 4870
March 3, 2009 9:40:48 PM

4870 is suddenly 'Ultra powerful'? Not quite, but nice try. Depending on resolution, you'll be fine with the 7750 and a 4870. 1680x1050 and down, go for the 512MB version, anything higher, 1GB FTW.
a b à CPUs
March 3, 2009 11:31:34 PM

Quote:
If he goes with a E5200 system, then his only upgrade would be current s775 cpu's. Also the E5200 is expensive at $96. The 7750 is only $63.


If he goes with the 7750, he can upgrade to a Phenom 2 later on. If you overclock the 7750 to 3ghz, which will be very very easy, you'll be fine with your 4870, especially if your running at higher resolutions like 1680x1050 or higher.

Id recommend this over the 7750 though:
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...
$123 after $10 rebate. (Dont forget a cooling fan)

The best scenario would be for your friend to save for a i7 or P2 AM3 system.


Looks to me like the e5200 is $73
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
If the OP got a p43 or p45 board, he could upgrade to an E8xx series or a higher end quad.
March 4, 2009 1:28:34 AM

Ok so i forgot to mention why i even considered a kuma 7750. My friend really wants a 4870 and not a 4850. I explained to him about 5200 as you guys mentioned and the 7750. Then things is in the long run like ZIPZOOMFLYHIGH said he could upgrade to a 720 BE but what about the 5200? He would have to buy a q6600 when he could get a 920 for just a few extra bucks right?. the monitor im getting him is a 22inch monitor.
March 4, 2009 1:30:00 AM

and yes overclocking is intended on any cpu I end up gettin for my friend
March 4, 2009 1:32:52 AM

I'm on a 7750x2 @ 3.2ghz with a gtx 280 and i play at max settings 1680x1050 on left 4 dead and i vary in fps but im usually at 60. i dont think its much of a bottleneck.

I am using vsync i typically never leave 60 fps unless theres an event and a boom then i go to 50?

if you get a 750 SB you should be able to get above 3.2Ghz on a 7750
a c 83 à CPUs
March 4, 2009 3:37:19 PM

shiftstealth said:
I'm on a 7750x2 @ 3.2ghz with a gtx 280 and i play at max settings 1680x1050 on left 4 dead and i vary in fps but im usually at 60. i dont think its much of a bottleneck.

I am using vsync i typically never leave 60 fps unless theres an event and a boom then i go to 50?

if you get a 750 SB you should be able to get above 3.2Ghz on a 7750


Tell that to my dud of a 7750 that won't even do 3.0Ghz on a SB750 board.
March 4, 2009 3:45:25 PM

what were your problems lone ninja?

dont forget the 7750 is a phenom 1 X2
March 4, 2009 5:10:59 PM

what cooler are you using?

They should be able to get to 3.3ghz on a sb750
March 4, 2009 9:15:31 PM

WEll i conviced him to spend a little more and he is buying a p2 x3 720 just like mine. I think I made the right choice here because that way he can upgrade to a x4 if he wants to later without having to spend that much
March 5, 2009 1:03:23 AM

im on a thermaltake v1 cooler and @ 3.2ghz i run like 25C while in wow lol. im in an antec 900 too.
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