Is there Performance Difference between DDR3 1333MHz vs 1600MHz vs 1866MHz vs 2133MHz

Today I would like to show you the performance difference between DDR3 Memory clocked at 2133MHz, 1866MHz, 1600MHz and 1333MHz. Below are some of these common questions asked by them: Is there really a performance difference? Should you spend more money on memory or CPU or graphic cards? This benchmark will pretty much answer your doubts by looking at the benchmarks. The benchmark results is done with an Intel i7-3770K CPU and Nvidia GTX 660Ti Graphic Card.

3DMark Vantage Performance (Higher is Better)
DDR3-2133 : 27,751 (103%)
DDR3-1866 : 27,478 (102%)
DDR3-1600 : 27,237 (101%)
DDR3-1333 : 26,848 (100%)

CineBENCH R11.5 (Higher is Better)
DDR3-2133 : 7.94 (101.66%)
DDR3-1866 : 7.81 (100.00%)
DDR3-1600 : 7.87 (100.79%)
DDR3-1333 : 7.81 (100.00%)

Super PI – 1M Calculations (Lower is Better)
DDR3-2133 : 9.415 seconds (99.96%)
DDR3-1866 : 9.423 seconds (99.87%)
DDR3-1600 : 9.414 seconds (99.96%)
DDR3-1333 : 9.411 seconds (100.00%)

wPrime – 32M Integers (Lower is better)
DDR3-2133 : 6.943 seconds
DDR3-1866 : 6.967 seconds
DDR3-1600 : 6.964 seconds
DDR3-1333 : 9.371 seconds

AIDA64 Cache & Memory Benchmark – Memory in MB/s (Higher is Better)
DDR3-2133 : 21342 Read / 20419 Write / 24017 Copy
DDR3-1866 : 20193 Read / 20086 Write / 23030 Copy
DDR3-1600 : 18850 Read / 19605 Write / 20982 Copy
DDR3-1333 : 17024 Read / 18943 Write / 18419 Copy

AIDA64 Cache & Memory Benchmark – Latency in ns (Lower is Better)
DDR3-2133 : 38.4
DDR3-1866 : 40.8
DDR3-1600 : 43.1
DDR3-1333 : 45.2

MaxxMEM2 – PreView – Memory in MB/s (Higher is Better)
DDR3-2133 : 22932 Read / 19957 Write / 23614 Copy
DDR3-1866 : 21821 Read / 19645 Write / 22702 Copy
DDR3-1600 : 20319 Read / 19214 Write / 21458 Copy
DDR3-1333 : 19436 Read / 18989 Write / 20878 Copy

MaxxMEM2 PreView – Latency in ns (Lower is Better)
DDR3-2133 : 55.2
DDR3-1866 : 58.7
DDR3-1600 : 60.9
DDR3-1333 : 62.3

Battlefield 3 – (Higher is Better in FPS)
Settings : 1920×1080 Ultra 4xMSAA 16xAF HBAO
DDR3-2133 : 48 Min / 68 Avg / 97 Max
DDR3-1866 : 48 Min / 67 Avg / 101 Max
DDR3-1600 : 47 Min / 67 Avg / 96 Max
DDR3-1333 : 47 Min / 68 Avg / 100 Max

Far Cry 3 (Higher is Better in FPS)
Settings : 1920×1080 DX11, 8xMSAA, 85.25 FOV, Enhanced, HBAO
DDR3-2133 : 50 Min / 60 Avg / 80 Max
DDR3-1866 : 49 Min / 60 Avg / 82 Max
DDR3-1600 : 49 Min / 59 Avg / 81 Max
DDR3-1333 : 49 Min / 59 Avg / 82 Max

Summary
As you see the benchmark above, there is not much difference in performance overall. Memory frequency does not really affect performance in most applications and games. However, when it comes to CPU intensive tasks, you are of course always better of with fast high-frequency memory or just to score high in CPU benchmarks but for gaming performance is only 1-2 FPS (Frame Per Second) difference. You might notice a slight difference in video editing or photo editing but its minuscule. I hope that this guide has help you out in deciding which memory sticks frequency to purchase!

Extra Goodies
The latest product from Intel which are Ivy Bridge and Haswell CPU has native memory frequency support of 1600MHz. Therefore, these frequency tends to perform better compared to lower ones such as 1333MHz as you can see in read-write-copy file operations. Once you have filter that out, then look on to the pricing of each RAM sticks and select the one has good warranty (example: G.Skill Lifetime warranty) and low price!

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