2 ROG Z87 motherboards, very different memory bandwidth?

[seryat]

I'm researching a new build and am considering the Z87 Gene or Impact. But a couple of reviews of the Gene show some low benchmarks that seem too low for such a high performance MB. Specifically, a couple of SiSoft Sandra memory bandwidth tests (Gene 23 GB/s vs 28 GB/s for the Impact) and the memory and cache access test shown here.

There's usually some room for minor differences between benchmarks, but these seemed low, especially compared to the Impact's scores and even most of the other Asus boards tested by the same website.

Other than being tested on an early version of the BIOS (dated 07/01/2013), any ideas why the Gene didn't score higher here?

[kkn]

you will not notice much from day to day use realy.

[Tokens210]

yea i wouldn't worry to much over them, it doesnt seem like a crazy difference so you probly wouldnt notcice is, especially since the boards are set for gaming and i believe both are only 1 GPU, games most likely you wouldnt notice but also the was they used had slower CL times then what you could possibly purchase

the used Gskill 2133MHz CL 10-11-10-27

also as you can see those test also say the impact beats the formula and actually every other ROG board, and noone ive seen has posted issues theyve noticed with ram speed like that so its probly fine VI formula comes in right below the impact and the VI extreme is right above the gene on the links page

[seryat]

Yea, I noticed that about the low showing of the Extreme too. Didn't know quite what to make of it except that maybe the timings used in the benchmarks need to be changed slightly for the Extreme and Gene to have better results.