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Choosing a GPU

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January 3, 2012 6:34:45 AM

I am going to build a new system in this month.. I am currently using
CPU - Dual core E5700 3.0
RAM - 4GB DDR2 800Mhz
VGA - GT430 1GB

this is not enough to max out latest games so i thought to build a new rig..

I chose following
CPU - Core i5 2400 3.1Ghz
RAM - 4GB DDR3 1333Mhz
Casing - Cooler Master Rc-335

problem is the VGA.. I can only spend for a GTS450 or a HD6670 (both are same price)

I have few problems

1. Are these GPUs are bottlenecking my system?

2. If so any suggestions except these two cards?

3. Will there be a huge difference between my GT430 and GTS450/HD6670?

4. should i buy a power supply if i am going to buy GTS450 or HD6670?

My main purpose is gaming and i am playing at 1360x768.. (Sorry if my English is wrong)

More about : choosing gpu

a b U Graphics card
January 3, 2012 6:44:46 AM

gtx 550ti is best option either and no, no gpu can bottleneck your system. i5 has a real power to handle heaviest gpu's even.
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a c 79 U Graphics card
January 3, 2012 6:57:01 AM

what psu are you using?
what is your max. budget for gfx card and psu (if your current one needs an upgrade)?
gts 450 is more powerful than 6670 1 gb gddr5 which is more powerful than gt430.
but a radeon hd 6770 is more powerful and efficient than all of these - if your psu and case can handle it, you should get one. it will handle most games at your resolution with ease. about your questions...
1. yes. sandy bridge is quite powerful for the entry level cards you listed. you will run into gpu bottlenecks long before you run into cpu bottlenecks. the 2400 can handle single cards easily and most cfx/sli configurations.
2. radeon hd 6750 1 gb gddr5 or radeon hd 6770 1 gb gddr5. if both are not affordable, then the 6670 1 gb gddr5. depends on the psu quality, amperage on +12v rail.
3. for gaming, yes.
4. depends on your current psu. check amd's recommended psu wattage. most important is amps on the +12v rail, 80+ ratings, then active pfc - stuff like that.
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January 3, 2012 7:18:37 AM

http://eu.msi.com/product/vga/R6670-MD1GD5.html

This is the 6670 card i mentioned.. Is this better than GTS450? Both cards are approximately 143 US dollars in my country..

I am going to buy a Cooler Master Rc-335 Casing and i do not what kind of psu i has.. Please help me with that.. They say it is Standard ATX PS2 and i do not know the meaning..
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January 3, 2012 7:32:47 AM

My PSU

Thermal Master 420W
+12V: 16A/ +5V: 30A/ +3.3V:
30A/ -5V: .5A/ -12V: .5A/ +5Vsb: 2A
1 x Main connector (20+4Pin)
1 x 12V(P4)
4 x Peripheral

Is this enough for a GTS450 or a 6670?
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a b U Graphics card
January 3, 2012 7:51:58 AM

xtreme5 said:
gtx 550ti is best option either and no, no gpu can bottleneck your system. i5 has a real power to handle heaviest gpu's even.

I think you got the question wrong.

1. yes, those GPU's are seriously bottlenecking your i5. The i5 is capable of delivering much more CPU power (in gaming) than both those cards can handle.

2. my suggestion would be to get a i3 2100. use the saved up budget to move up to a HD6850 or GTX460. your system will have a much better balance, and you will have a much better gaming experience.

3. the GT430 competes with the HD5550. Which is HD5550 = GT430 < GT440 = HD5570 < HD5670 = HD6570 < HD6670 < HD6750 < GTS450, so it's a long way back.

4. You will not need a new PSU for the HD6670, but you will need one for the GTS450.
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a c 79 U Graphics card
January 3, 2012 8:53:57 AM

lakshitharxx said:
My PSU

Thermal Master 420W
+12V: 16A/ +5V: 30A/ +3.3V:
30A/ -5V: .5A/ -12V: .5A/ +5Vsb: 2A
1 x Main connector (20+4Pin)
1 x 12V(P4)
4 x Peripheral

Is this enough for a GTS450 or a 6670?

only 192 watts on the +12v rail ... amps are also too low even for 6670 .i think this is an old psu for pentium 4 computers.
get one with at least 30A on the +12v rail, 80+ rated, active pfc psu.
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January 3, 2012 8:56:15 AM

Zero_ said:
I think you got the question wrong.

1. yes, those GPU's are seriously bottlenecking your i5. The i5 is capable of delivering much more CPU power (in gaming) than both those cards can handle.

2. my suggestion would be to get a i3 2100. use the saved up budget to move up to a HD6850 or GTX460. your system will have a much better balance, and you will have a much better gaming experience.

3. the GT430 competes with the HD5550. Which is HD5550 = GT430 < GT440 = HD5570 < HD5670 = HD6570 < HD6670 < HD6750 < GTS450, so it's a long way back.

4. You will not need a new PSU for the HD6670, but you will need one for the GTS450.



1. Do you think a gtx460 wont bottleneck my i5? Otherwise what are the best cards for a i5?

2. Can you suggest me a good power supply if i am going to buy a GTS450?


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a b U Graphics card
January 3, 2012 12:28:43 PM

currently no gpu can bottleneck the i5 even at stock speed you can use a heaviest card and your cpu should be fine.
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January 3, 2012 1:01:25 PM

xtreme5 said:
currently no gpu can bottleneck the i5 even at stock speed you can use a heaviest card and your cpu should be fine.


I wanted to know are those gpus seriously bottlenecking my i5.. Sorry for my bad English.. :) 
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January 3, 2012 1:03:08 PM

$35.99 +12V@35A PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Go from the i5 2400 to the i3 2100 and save the extra $65 to buy the above PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

$134.99 6850 GPU
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

You had mentioned that you had about $143 USD to spend
This would come to be
$35.99(PSU)
- $65.00(difference in cost of i5 to i3)
=-$29.01(savings)

$29.01(savings)
+$143.00(Total you said you have to spend)
=$172.01 (total funds)

$172.01 (total funds)
- $134.99 (GPU)
= $37.02 (savings)

$37.02 (money for shipping)
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a b U Graphics card
January 3, 2012 2:15:10 PM

lakshitharxx said:
I wanted to know are those gpus seriously bottlenecking my i5.. Sorry for my bad English.. :) 

no friend they should be fine at all.
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January 3, 2012 4:26:34 PM

christiangordon said:
$35.99 +12V@35A PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Go from the i5 2400 to the i3 2100 and save the extra $65 to buy the above PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

$134.99 6850 GPU
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

You had mentioned that you had about $143 USD to spend
This would come to be
$35.99(PSU)
- $65.00(difference in cost of i5 to i3)
=-$29.01(savings)

$29.01(savings)
+$143.00(Total you said you have to spend)
=$172.01 (total funds)

$172.01 (total funds)
- $134.99 (GPU)
= $37.02 (savings)

$37.02 (money for shipping)



This card is 230Us dollars in my country. If i order online, i think i would have to pay shipping+taxes... :fou:  that means the same cost if bought from a nearby shop.. :(  I am really stuck in here. between core i5+GTS450 and Corei3+a better card than GTS450.. :( 
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a c 79 U Graphics card
January 3, 2012 4:30:52 PM

lakshitharxx said:
This card is 230Us dollars in my country. If i order online, i think i would have to pay shipping+taxes... :fou:  that means the same cost if bought from a nearby shop.. :(  I am really stuck in here. between core i5+GTS450 and Corei3+a better card than GTS450.. :( 

figured. that's why i said to look for prices on radeon hd 6750 and 6770. gts 450 is roughly equal/better than the 6750. but your psu needs an upgrade as well.
if you skip over the core i5 and go with core i3, you might be able to fit in a 6770 or a 6850... but the psu upgrade should take priority.
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January 4, 2012 2:58:22 AM

de5_Roy said:
figured. that's why i said to look for prices on radeon hd 6750 and 6770. gts 450 is roughly equal/better than the 6750. but your psu needs an upgrade as well.
if you skip over the core i5 and go with core i3, you might be able to fit in a 6770 or a 6850... but the psu upgrade should take priority.



I changed my mind about and i will go with

1. Core i3 2100 3.1Ghz
2. HD6750/HD6770/GTS450 ( one of these card )
3. 450W power supply

that will fit my budget and I am going to buy it on next week.. I really appreciate if there is anything else you can suggest me. Because i am to going to build another for at least 2 years.
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a c 79 U Graphics card
January 4, 2012 3:33:06 AM

lakshitharxx said:
I changed my mind about and i will go with

1. Core i3 2100 3.1Ghz
2. HD6750/HD6770/GTS450 ( one of these card )
3. 450W power supply

that will fit my budget and I am going to buy it on next week.. I really appreciate if there is anything else you can suggest me. Because i am to going to build another for at least 2 years.

choose a good 450w psu. ask in the psu section/search in the psu section for good psu and psu info.
that build is good for low resolutoin gaming. no one knows what's gonna happen in 2 years.. but your current build will be good for a while. if your budget and psu allow, go for a 6770.
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January 4, 2012 6:18:01 AM

Thank you very much all. I will ask in psu section to know more about psu.. thanks again..
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January 17, 2012 10:08:03 AM

Best answer selected by lakshitharxx.
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