#FASTEST RAM SPEED NS 64 BIT#
#FASTEST RAM SPEED NS SERIAL#

How does the motherboard know what to do? It figures it out by reading the SPD, the Serial Presence Detect. So, you buy a RAM module with a bunch of speed, timing, and voltage requirements. But modern motherboards can overvolt (or undervolt) RAM to try to juice more reliability out of them. One last number I didn’t mention the RAM voltage. I’m not sure what the last two numbers exactly mean but in all cases lower is better. 16 is the best latency you’ll get accessing a new memory cell the second number 18 means you need to tack on another 18 cycles if you have to change rows, too. The other numbers in the 16-18-18-36 describe the rest of the RAM latency. What about the 16-18-18-36? The first number is the cache latency, the CL16. Smaller CL is always better DDR4-3200 comes in CL14 to CL22. Which is why CPUs have such big caches now. That’s a significant amount of time RAM is much slower than CPUs run. That’s the cache latency, the delay between when a column is selected and the bits can be delivered. The second most important stat is the CL16. (That’s the spec fastest memory my Ryzen 3700X can drive, although many folks overclock to DDR-3600 at least.) Modern memory tends to vary from DDR4-2400 to DDR4-4800, with my DDR4-3200 being typical.

#FASTEST RAM SPEED NS 64 BIT#

You get two 64 bit words through per cycle, so that results in 25,600 MB/second throughput. The actual clock is half the number so it’s 1600MHz or 0.625ns cycles. That’s the basic speed of the RAM I/O channel and bigger is better. The most important stat is the DDR4-3200. Modern PC memory is defined by a complex set of memory timings. VENGEANCE Platinum RGB RAM all lit up Memory timings You can also buy DOMINATOR memory with flashing LEDs on it.

The tech behind all this is fascinating so I’m going to write more.įirst, a shout out to the bros at Corsair who branded my RAM with the name VENGEANCE. No detailed overclocking or anything, just one setting. Long story short: I enabled DOCP (aka XMP) on my Asus X570-Pro motherboard and it runs right now. I had one hiccup on my new machine: the RAM wasn’t running as fast as it should.

Fastest ram speed ns