Haswell question

[GeorgeKellow]

Is there a haswell CPU (lga1150) that supports ddr4?

 

i probably know the answer to this question, but if there is a CPU that's supports ddr4, will my current motherboard support it? (MSI gaming 5) 

[porina]

Haswell is DDR3, and if you're finding you need more ram speed 2400 isn't too expensive.

 

Haswell-E is DDR4, but needs a different mobo/socket.

[HKZeroFive]

No, there is not. Only LGA2011-3 and LGA1151 supports DDR4 RAM. Meaning that the MSI Z97 Gaming 5 will not support DDR4 RAM, only DDR3.

[manikyath]

4 minutes ago, porina said:

Haswell is DDR3, and if you're finding you need more ram speed 2400 isn't too expensive.

 

Haswell-E is DDR4, but needs a different mobo/socket.

but.. why would you ever need more ram speed on a desktop platform?

[SnowyMus]

Unfortunately, no. The few Haswell CPUs that were released after DDR4 was released such as some of the Devil's Canyon CPUs (the 4790K, for example) don't support DDR4, either. You can check with Intel ARK for these things.

 

11 minutes ago, manikyath said:

but.. why would you ever need more ram speed on a desktop platform?

Increasing RAM speed can improve integrated graphics performance a bit. How much depends on the application, I guess.

 

It can also improve overall CPU performance indirectly, which is good if you can't overclock your CPU any higher and want even more performance. It's obviously not going to make-or-break most, if anything, but it's always something to consider if there's nothing else you want to spend money on, since decent overclockable RAM costs only $10-$20 extra most of the time.

[porina]

3 minutes ago, manikyath said:

but.. why would you ever need more ram speed on a desktop platform?

Some software actually needs it to not bottleneck the CPU. In my testing for Skylake quad core, to not be significantly limited the rule of thumb I came up with is to aim for dual channel ram nominal speed comparable to CPU clock speed. So, I'm not quite at optimal CPU performance since getting ram 100% stable much past 3000 is a pain or stupidly expensive.