amd or nvidia for lower power consumption

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yulneth

Honorable
Feb 8, 2014
39
0
10,530
hello guys. just wanted to ask which card have low power consumption but have a high performance. my current selection is hd 7750, hd 7790, gtx 650 ti and gtx 750 ti
 
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there are a bunch of cards around that price. but first about the g/ddr3 - due to much lower memory bandwidth which bottleneck the gpus. gpus from radeon hd 7750 and up are too powerful for g/ddr3 memory which provide around 35~ GB/s bandwidth while gddr5 can provide more than twice as much, at least.

from amd (using newegg as reference):
r7 265
ASUS DirectCU II R7265-DC2-2GD5 Radeon R7 265 2GB 256-Bit GDDR5 PCI Express 3.0 HDCP Ready CrossFireX Support Video Card $169.99, $2.99 Shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121868
r7 260x
GIGABYTE GV-R726XOC-1GD Radeon R7 260X 1GB 128-bit GDDR5 PCI Express 3.0 HDCP Ready...
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de5_Roy

Splendid
Oct 14, 2011
7,159
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26,960

first, what is your budget?
from amd's lineup, 7750 had the best gaming perf from a card that required no pcie power connector. radeon r7 265 is one of the fastest card that requires only one 6 pin power connector. but the most powerful card that requires only one 6 pin power connector is radeon r9 270 (non x).

from nvidia, gtx 750ti has the best gaming perf from a card that requires no pcie power connector. it displaced radeon hd 7750, in that segment. however, you might see both 7750 and 750ti with one 6-pin pcie power connector in select cards. some cards even have ddr3 or gddr3 ram as video memory - stay away from those.
 
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yulneth

Honorable
Feb 8, 2014
39
0
10,530


my budget is 150$. and why do i have to stay away from ddr3 or gddr3 ram as video memory?
 
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de5_Roy

Splendid
Oct 14, 2011
7,159
0
26,960

there are a bunch of cards around that price. but first about the g/ddr3 - due to much lower memory bandwidth which bottleneck the gpus. gpus from radeon hd 7750 and up are too powerful for g/ddr3 memory which provide around 35~ GB/s bandwidth while gddr5 can provide more than twice as much, at least.

from amd (using newegg as reference):
r7 265
ASUS DirectCU II R7265-DC2-2GD5 Radeon R7 265 2GB 256-Bit GDDR5 PCI Express 3.0 HDCP Ready CrossFireX Support Video Card $169.99, $2.99 Shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121868
r7 260x
GIGABYTE GV-R726XOC-1GD Radeon R7 260X 1GB 128-bit GDDR5 PCI Express 3.0 HDCP Ready Video Card $119.99, Free Shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125497
HIS iPower IceQ X² Turbo H260XQMT1GD Radeon R7 260X 1GB 128-Bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card $139.99, $2.99 Shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16814161450
nvidia: gtx 750ti
EVGA 02G-P4-3751-KR GeForce GTX 750 Ti 2GB 128-Bit GDDR5 PCI Express 3.0 Video Card $154.99, $5.39 Shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16814487025
ASUS GTX750TI-OC-2GD5 GeForce GTX 750 Ti 2GB 128-Bit GDDR5 PCI Express 3.0 HDCP Ready Video Card $169.99, $5.39 Shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121855
according to toms' review, radeon r7 265 is the fastest, but also the most power consuming. then the gtx 750ti, the least average power consuming (check the power consumption charts) followed by r7 260x which uses more power than 750ti. i didn't check radeon hd 7790, gtx 650ti and radeon hd 7750 prices.
 
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