Kelläs matikkapäätä ja ymmärystä kertoa kumpi muisti on nopeenpaa?
4 Gt DDR3- 1600 MHz ja viive CL9
vaiko
4 Gt DDR3- 1333 MHz ja viive CL8
4 Gt DDR3- 1600 MHz ja viive CL9
vaiko
4 Gt DDR3- 1333 MHz ja viive CL8
Kumpi muisti nopeempi
Nippeli.
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Vanhimmat
http://www.anandtech.com/show/4503/sandy-bridge-memory-scaling-choosing-the-best-ddr3/8
"None of the real-world tests performed showed any reason to prefer low latency over raw speed." eli 1600MHz parempi.
DDR3 2000 is just as fast at CL9 as the 1333 is at CL6.
"To know the difference, you have to know what CL means. The CAS latency is the time between accessing memory and being able to read the memory from the output, so 8 is faster than 9 is faster than 10. BUT and this is a huge BUT. Notice the all caps. Sometimes a higher CAS is faster because the memory operates at different speeds. For instance a DDR3 1333 module runs at 666mhz and ha a cycle time of 1.5ns. With a CL of 6 that means it takes 9ns for the memory to be available on the output. However a DDR3 1600 module runs at 800 and has a cycle time 1.25ns. With a CL of 7 it takes 8.75ns. As you can see, even though the CL is higher, it is still faster because the mhz jump increases the cycle time enough to give it a little boost. Going further, DDR3 2000 is just as fast at CL9 as the 1333 is at CL6."
Käytännössä ei ole mitään väliä.