DDR4-3600 CL15 vs DDR4-3200 CL14

Alex_208

Commendable
May 10, 2016
18
0
1,510
Hi,

I'm building my first gaming PC, and I'm stuck between two choices of RAM.
Corsair Vengeance LPX DDR4-3600 CL15
G.Skill TridentZ DDR4-3200 CL14
Which one will be faster/better?
 
Solution
Beyond DDR4 2666MHz CL16 seems to be minimal or no benefit to most scenarios.

So in reality they're probably roughly IDENTICAL in that the bottleneck is the CPU, and we're talking the i7-6700K anything less requires less bandwidth.

Example: http://www.extremetech.com/extreme/198894-raming-speed-does-boosting-ddr4-to-3200mhz-improve-overall-performance

"As Anandtech’s benchmarks show, the benefits of moving from DDR4-2133 to DDR4-3200 are tiny.... "

(notable exceptions are integrated graphics like the best APU's which use some of this memory as VIDEO memory)
Beyond DDR4 2666MHz CL16 seems to be minimal or no benefit to most scenarios.

So in reality they're probably roughly IDENTICAL in that the bottleneck is the CPU, and we're talking the i7-6700K anything less requires less bandwidth.

Example: http://www.extremetech.com/extreme/198894-raming-speed-does-boosting-ddr4-to-3200mhz-improve-overall-performance

"As Anandtech’s benchmarks show, the benefits of moving from DDR4-2133 to DDR4-3200 are tiny.... "

(notable exceptions are integrated graphics like the best APU's which use some of this memory as VIDEO memory)
 
Solution


As a matter of fact, I am getting an i7-6700k. So from what I understand it won't really change anything?
 


Updated my post. Go read the article.

Here's the longer quote:

"As Anandtech’s benchmarks show, the benefits of moving from DDR4-2133 to DDR4-3200 are tiny. The vast majority of consumer applications and games show gains of 0-5%. To be clear, Anandtech does find a few applications where this trend gets bucked — minimum frame rates are up a touch in several titles, particularly in SLI testing, and there’s one benchmark, the Redis memory key-store test, where moving from DDR4-2133 to DDR4-3200 gives a relatively huge benefit of 16% for a 50% clock rate boost. These gains, however, are erratic and unpredictable. The Redis test is designed to benchmark an online application database, and explicitly depends on high memory bandwidth and CPU performance. Outside of these tests, performance mostly doesn’t improve from faster main memory — so why not?"

**THAT is why I suggest DDR4 2666MHz CL15/CL16 to most people.
 
The higher bandwidth show through more in better performance if you are multi-tasking or using DRAM intensive apps, you seldom see much in individual benchmarks. For a $15 difference I'd go the 3200/14, I've got a set of the Trident Zs in 3200/14 and have run them at 3600/15 with no problems
 
Depends if your software and purpose can take advantage of bandwidth. Most people do not have any purpose for it, so when they test using their normal usage, there is not much difference. But for others and in the future for 4K+ video and such reasons for greater bandwidth, then you will notice a significant improvement. In other words, high performance hardware is meant for high performance users.