Kingston HyperX Genesis Memory - Speed

[gg61]

Hi,

Shortly I will be purchasing 8 Gb's of RAM for my i5-4670K build. For the RAM, I am looking at Kingston HyperX Genesis and noticed that the speed is 1333-2400mhz.

Does this mean that I can just change the RAM to run at 2400mhz in the BIOS. Are there any disadvantages? More heat? Also, will it stay at 9-9-9-24 timings?

Thanks in advance.

 

[gaborbarla]

Hi,

Shortly I will be purchasing 8 Gb's of RAM for my i5-4670K build. For the RAM, I am looking at Kingston HyperX Genesis and noticed that the speed is 1333-2400mhz.

Does this mean that I can just change the RAM to run at 2400mhz in the BIOS. Are there any disadvantages? More heat? Also, will it stay at 9-9-9-24 timings?

Thanks in advance.

Depending on your motherboard it may or may not support some of the faster setting of your RAM. Generally though I find it difficult to get my RAM to run at its quoted timings etc.

Yeah it should make more heat at higher settings as effectively it is an overclock.
I wouldn't worry too much though as RAM speed is only really important if you are running on board graphics, which hopefully aren't.

 

[gg61]

Hi,

Shortly I will be purchasing 8 Gb's of RAM for my i5-4670K build. For the RAM, I am looking at Kingston HyperX Genesis and noticed that the speed is 1333-2400mhz.

Does this mean that I can just change the RAM to run at 2400mhz in the BIOS. Are there any disadvantages? More heat? Also, will it stay at 9-9-9-24 timings?

Thanks in advance.

Depending on your motherboard it may or may not support some of the faster setting of your RAM. Generally though I find it difficult to get my RAM to run at its quoted timings etc.

Yeah it should make more heat at higher settings as effectively it is an overclock.
I wouldn't worry too much though as RAM speed is only really important if you are running on board graphics, which hopefully aren't.

My motherboard will be a Gigabyte GA-B85-D3H. And, I will be using the intel HD graphics...

 

[techgeek]

Without knowing the exact part number of your kit, it's hard to say what timings you'd have at 2400. However I think I'm safe to say the 9-9-9-24 wouldn't be the timings for 2400. I would say that would be for 1333 and/or 1600. My guess is that for 2400 you'd have a CAS of 10 or 11.

Each supported speed should have the approved timings for them stored in the SPD, I will also make another assumption here and guess that 2400 is XMP and not JEDEC. Could be wrong, but I don't think JEDEC standards don't go above 1866.

As was pointed out, Haswell doesn't scale much with faster RAM / tight timings. However if you are using the IGP, faster RAM does help. However when it comes to graphics (in games anyway) having faster RAM to support the IGP is like strapping rockets to a boulder, SLOW, but sounds cool to someone who doesn't know better. It'll be faster that standard RAM, but going from 30 fps to 40 fps at very low to low settings isn't anything to be happy about. If you are spending extra money on faster RAM to make games faster, save that money and get a 750 GTX or something along those lines. If your not a gamer, the faster RAM makes even less sense.

 

[matt798]

i agree it can matter little but lets say if your running cas 11 at 1333mhz at cas 9 1600mhz i think you would see better performance.

beyond that and lower cas could be called useless to most any person and alot of people will say that you need the speed your ram is running at plus one stick for your cpu's memory bandwidth.

supported ram to that cpu should be listed on intels ark.

anymore than the listed max speed would technically require a overclock to cpu's memory bandwidth

 

[techgeek]

About the only thing that scales (beyond the IGP) on Haswell with faster RAM is benchmarks like SuperPi (which are memory bandwidth sensitive) large FFT's in Prime95, and memory benchmarks. All of these are e-penis measurements and mean nothing outside the overclocking community.

Oh I forgot, image manipulation software as well as some transcoding software benefit from higher memory bandwidth.

 

[gg61]

I'm not much of a gamer but I will be purchasing that RAM mainly for its quad channel support. I was just wondering if I could overclock too.

What speed do you think I could achieve with the stock CAS 9 timings? Or, should I get the base 8 Gb's sticks that are only 1600mhz and dual channel for $15 less?

 

[matt798]

you got a lot of knowledge in one place and repeated that some people can struggle with

you will do fine on picking ram when considering everyone's opinion

as for overclocking it... its 3.8ghz turbo is nothing to sneeze at so u may find more could just give you more heat and power draw but 4.1ghz to be flashy unless your planing on something hard hitting single core even then you may find that intel optimizes cpu's well for what they do.

its my opinion but if u wanna get into all that you should get a AMD cpu since they are unlocked out of box for overclocking and are cheaper if you kill it

 

[Tradesman1]

Check your mobo specs, think you'll find that it may well max out at 1600, can't think of any B85 chipset mobos off hand that support the high freqs

 

[gaborbarla]

Hi, get stock (standard) RAM and go and get a proper gfx card if you want to play games.
If you dont want to play games or play less demanding games, then you should just save you money on not buying faster RAM anyways. That is my assessment. You basically wasting money on that RAM. Much better is to buy a standalone graphics card.