Feb 28 2011, 07:09 AM
QUOTE(shahiryusoff @ Feb 28 2011, 12:29 AM)
For Graphics it's GDDR3 (Graphics Double Data Rate, version 3) or GDDR5 (Graphics Double Data Rate, version 5).
DDR3 ( Double Data Rate 3) term is used for RAM.
DDR3 is used in GPU as well... my GPU is using it (though GPU-Z detect it as GDDR3)...DDR3 ( Double Data Rate 3) term is used for RAM.
Added on February 28, 2011, 7:15 am
QUOTE(Trance4eva @ Feb 28 2011, 02:23 AM)
So are there huge performace dif between them??
I thought some GPU also uses DDR3 like the GT550M on the N53SN
GT550M http://www.notebookcheck.net/NVIDIA-GeForc...0M.42264.0.html
HD6870M has all 3 http://www.notebookcheck.net/AMD-Radeon-HD...0M.43733.0.html
between GDDR3 and DDR3, not that much... DDR3 usually runs at up to 1333MHz, while GDDR3 used to be in the range of 1200-1500MHz (when DDR2 was mainstream), and GDDR4 running at 1700-2000MHz... but as GDDR4 has been retired, GDDR3's clock has been pushed to around 2000MHz as well...I thought some GPU also uses DDR3 like the GT550M on the N53SN
GT550M http://www.notebookcheck.net/NVIDIA-GeForc...0M.42264.0.html
HD6870M has all 3 http://www.notebookcheck.net/AMD-Radeon-HD...0M.43733.0.html
GDDR5, technically speaking it should be called QDR instead - Quad Data Rate, as it provides twice the bandwidth compared to the DDR variants (DDR1-DDR3, GDDR2-GDDR4)... instead of transmitting 2 pieces of data, GDDR5 can transmit 4 pieces, thus doubling the effective bandwidth, giving u speed like 3600-4000MHz... so try to look for GDDR5 if possible... it improves the performance significantly... a pretty close comparison would be Acer Aspire Ethos 5943G (Radeon HD5850 GDDR3) and AW m15x (Radeon HD5850 GDDR5)
This post has been edited by astria: Feb 28 2011, 07:16 AM
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