Sandip Gupta :
EasyLover :
Hmmm! Please provide the graphics card model number please.
NVIDIA GEFORCE GT630 2GB DDR3 128BIT PCI-E CARD (FORSA)
or
EVGA GeForce GT 730 2GB GDDR5 64bit DVI/HDMI/VGA Low Profile Graphics Card 02G-P3-3733-KR
which one of these is better ?
please help to sort out difference between DDR3 128bit and DDR5 64bit
does "Bit" part matter most ?
it would be very helpful thank you in advance
GT 730 is better than the GT 630. You are getting confused over 128-bit and 64-bit thing. Look, in GPU, latencies won't really matter but the speed. In this case, 630 has effective memory clock of 1800MHz (almost 28.5 GB/s) but in 730 effective memory clock is 5500MHz (40 GB/s). Which is faster, decide for yourself.
When it comes to GPU and VRAM, the more the memory clock, the better it is. 64-bit bandwidth bus would be compensated by the higher clock rate.
Definitely go for GT 730. Topic of DDR3 vs GDDR5 is a lengthy one, I've just given you a tip of iceberg in a nut shell.