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Amd 7750 for core2duo?

Last response: in Graphics & Displays
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March 11, 2012 11:25:56 AM

hi :D 
i have HP Pavilion a6540in
i know that the system is very old now & the PSU is weak,i got this pc when i didnt know how to make a gaming rig but i want to use this as a secondary pc for gaming
i can upgrade RAM if necessary

& i was wondering if a amd radeon 7750 will work & if the CPU will be bottle necking the GPU during gaming?also will it play modern games in medium/high or should i just make a new custom rig?
i have a 19" 60hz 1440X900 monitor for this pc

More about : amd 7750 core2duo

a b U Graphics card
March 11, 2012 11:54:33 AM

CPU will definately bottle neck the video card.
Your power supply won't even fire up the video card.

Save your money and upgrade the computer first.
Intel i5 =D
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a c 175 U Graphics card
March 11, 2012 12:16:09 PM

You'd better go with something lower like 6450, or wait until the low end HD 7000s coming on the retail market.
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a c 84 U Graphics card
March 11, 2012 12:59:40 PM

go with gt 240 better way to go you will get better performance then gt 430 and gt 440.:) 

and it will perform better in gaming and it will be the perfect choice for your system and better then a hd 6450.:) 
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a c 175 U Graphics card
March 12, 2012 11:10:56 AM

Yea but 240, 430 and 440 won't run on 250W :) 
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March 12, 2012 11:51:44 AM

i had a gt320 i5 750 and that run fine on a 300w you sure those wont work?
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a c 84 U Graphics card
March 12, 2012 1:04:32 PM

yes there will be some risk but gt 240 runs with 250w psu op hd 5570 would be the best choice for that psu and even a bit low riskier then gt 240.:) 
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a b U Graphics card
March 12, 2012 2:11:55 PM

There is no 6-pin connector on the HD 7750, and since the HD 7750 is 28nm, it uses lower wattage than a 5670 or gt 220 and perform 5x better.
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a b U Graphics card
March 12, 2012 2:15:00 PM

HD 7750 = 55W and 819.2 GFLOPS

GT 220 = 58W and 196 GFLOPS
HD 5670 = 64W and 620 GFLOPS

The 7750 use way less wattage and performs way better than other low-end cards.

Hope it helps! :) 
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a c 84 U Graphics card
March 13, 2012 7:46:49 AM

bloc97 said:
There is no 6-pin connector on the HD 7750, and since the HD 7750 is 28nm, it uses lower wattage than a 5670 or gt 220 and perform 5x better.



you are telling him to get hd 7750 on 250w psu?
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March 13, 2012 1:28:47 PM

i think you need a 500w for a 7750
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a b U Graphics card
March 13, 2012 1:56:59 PM

You do not need 500w for the 7750.
Depending on the c2d if its at 2.8 or higher it should be able to run with a 7750.
The psu is the only issue i would see and that is easily fixed as the 7750 can be ran on a 300w psu as it uses 55w without any external connectors.
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a c 130 U Graphics card
March 13, 2012 1:57:05 PM

sunnk said:
you are telling him to get hd 7750 on 250w psu?



Question for you then, well a couple actually.

1. What is the power rating, that is how much power can a single PCIE slot provide ?
2. What is the peak power usage of a 7750 ?

Mactronix :) 
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a b U Graphics card
March 13, 2012 2:05:24 PM

At 55w as long as the psu can actually put out stable power it should run methinks on a 250w.
Typical total system consumption from alot of the reviews ive seen is around 200w.
I say go for it as is. As i said earlier the only concern of mine for op would be whether the psu can acually output labeled wattage. If not then a psu isnt pricey that can power that system
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a b U Graphics card
March 13, 2012 11:15:00 PM

sunnk said:
you are telling him to get hd 7750 on 250w psu?


Didn't you even read my second post? :??: 

I stated there that a HD 7750 was 55W and perform better than any other low-wattage card...

A core 2 duo doesn't use a lot of wattage... It should work on a 250W PSU...
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a b U Graphics card
March 14, 2012 2:43:25 AM

This isnt the first time sunnk has been a naysayer of the 7750 on a low wattage system...
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a c 175 U Graphics card
March 14, 2012 11:25:36 AM

Some 250W's unit may support 7750, but not all. It depends on quality and the amperages. If you OP would show me the label, it would be great. But I kinda against the Idea of 7750 but instead to get a much lower end GPUs instead because 7750 is PCI-E 3.0 (May have problem on your slot as it's usually 1.1/1.0) and would not take the risk to use a 7750 on an OEM 250W PSU.
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March 14, 2012 1:04:52 PM

the power supply is a
bestec 250 atx 12z rev H5R

+12V 14A
+5V 25A
+3.3V 18A
-12V 0.8A
+5VSB 2A 2.5A peak


+5V & +3.3V 165W max
+5v & +12V 235W max

i can upgrade the psu if required...but the thing is i am already building a new rig with a GTX 560 & this PC is going to be only for occasional gaming & i don't want to spend much on it..

i think i read in a few places that even high end cards wont be able to use pcie 1.0 fully..so if this is true then pcie 3.0 cards wont be a problem right?

also do you guys think the 7750 will be bottlenecked significantly because of the core2duo?(if it is i guess there is not much point in buying a gpu for this pc...:) )
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a b U Graphics card
March 14, 2012 1:22:28 PM

It wont be choked very much at all.
You can run on your current psu and if by some weird way it doesnt you can pick up a cheapie with enough juice for cheap
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a b U Graphics card
March 14, 2012 3:39:20 PM

FlintIronStagg said:
It wont be choked very much at all.
You can run on your current psu and if by some weird way it doesnt you can pick up a cheapie with enough juice for cheap



It's 50/50... HP tend to use cheap OEM PSU's in their box's and the fact it's old.... I don't know. If he had a Dell I'd 100% say go for it. Yes, typically Dell's PSU's are proprietary but tend to be on higher quality side.

My mother has a similar HP as the OP's and I installed a 9400GT (I had laying around for troubleshooting) and the thing wouldn't even boot.
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a b U Graphics card
March 14, 2012 5:15:35 PM

My old hp took a gpu like a champ 240w psu i believe
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!