It really make a diffrence when you get DDR4 2800mhz over a DDR4 2133mhz?

[happyleonardo14]

I'm asking this because I see so many people when they spend more to get ram with high frequency but I don't really know if that make a really difference, how it works or if they really need that extra.

[bgibbz]

1 minute ago, happyleonardo14 said:

I'm asking this because I see so many people when they spend more to get ram with high frequency but I don't really know if that make a really difference, how it works or if they really need that extra.

Higher speed ram makes a difference in the sky lake architecture, if that's what your running. I recommend ddr4-2400+

[Marine_Boy]

As far as I know you won't be able to see the difference in games for example or daily use like internet browsing or watching movies.

[Atmos]

Does it make a difference? Yes.

Does it make a noticable difference in 90% of applications? No.

 

Gaming, daily use, and the majority of what most people use a computer for will not really be affected at all by the increase. The only applications where that extra speed is going to really show any sort of tangible improvement is going to be in media creation and professional applications.

[porina]

It makes a difference where it makes a difference. There isn't much of a price difference between standard and up a bit in speed, in which case going for it could give a little more future resistance. Just don't go silly with highly priced kits.

[happyleonardo14]

Just now, Marine_Boy said:

As far as I know you won't be able to see the difference in games for example or daily use. 

And that's what I want to know.

 

1 minute ago, Atmos said:

Does it make a difference? Yes.

Does it make a noticable difference in 90% of applications? No.

 

Gaming, daily use, and the majority of what most people use a computer for will not really be affected at all by the increase. The only applications where that extra speed is going to really show any sort of tangible improvement is going to be in media creation and professional applications.

Yeah that's the answer I was waiting for.   +10

but I can't understand why people keep getting high frequency when they want the computer just for gaming and daily use.

[HKZeroFive]

3 minutes ago, happyleonardo14 said:

but I can't understand why people keep getting high frequency when they want the computer just for gaming and daily use.

Faster RAM gives a small boost in CPU-intensive scenarios in the form of higher minimum framerates (and in some cases, average framerates), and therefore reduces stuttering. There's a justifiable reason why people get it, it's not just for the e-peen.

[Zyndo]

RAM can be beneficial in some situations. Even on gaming computers. However, in most gaming computers, the bottleneck resides in its GPU, so increasing CPU power or RAM power does not result in almost any performance increase because it just gives it extra headroom it cannot use.

 

If the bottleneck resides in your CPU or RAM, then increasing RAM speed can make a very noticeable difference.

[happyleonardo14]

5 minutes ago, HKZeroFive said:

Faster RAM gives a small boost in CPU-intensive scenarios in the form of higher minimum framerates (and in some cases, average framerates), and therefore reduces stuttering. There's a justifiable reason why people get it, it's not just for the e-peen.

for me it's not a noticeable difference maybe that's why there is a minimum difference price
 

[HKZeroFive]

2 minutes ago, happyleonardo14 said:

for me it's not a noticeable difference maybe that's why there is a minimum difference price

Perhaps it's because you don't encounter many CPU-intensive scenarios but extensive testing by forum members and review channels such as Digital Foundry have supported this. Anyway, since there's such as minimal price difference (a 3000MHz kit is like $10 more?), I usually recommend getting faster RAM if a person isn't on a tight budget and is using a Z-series motherboard.

[happyleonardo14]

2 minutes ago, HKZeroFive said:

Perhaps it's because you don't encounter many CPU-intensive scenarios but extensive testing by forum members and review channels such as Digital Foundry have supported this. Anyway, since there's such as minimal price difference (a 3000MHz kit is like $10 more?), I usually recommend getting faster RAM if a person isn't on a tight budget.

I would like to see a video from digital foundry talking about that. You think gaming and daily use it's a CPU-intensive scenario?

[HKZeroFive]

1 minute ago, happyleonardo14 said:

I would like to see a video from digital foundry talking about that. You think gaming and daily use it's a CPU-intensive scenario?

Daily use, won't see a difference. In situations where the CPU is the bottleneck (either when it bottlenecks a faster GPU or the game is CPU-intensive), faster RAM will help:

 

[happyleonardo14]

7 minutes ago, HKZeroFive said:

Daily use, won't see a difference. In situations where the CPU is the bottleneck (either when it bottlenecks a faster GPU or the game is CPU-intensive), faster RAM will help:

 

Well thank you for your help I would like to keep talking with you about this because I have some doubts but my english is poor.

 

[HKZeroFive]

12 minutes ago, happyleonardo14 said:

Well thank you for your help I would like to keep talking with you about this because I have some doubts but my english is poor.

Fire off some questions and I'll try my best to answer them

[Nena Trinity]

Anything less than 2666Mhz is unacceptable in a DDR4 gaming rig!

[porina]

52 minutes ago, HKZeroFive said:

Daily use, won't see a difference. In situations where the CPU is the bottleneck (either when it bottlenecks a faster GPU or the game is CPU-intensive), faster RAM will help:

If faster ram is helping you, you're ram bottlenecked. It is possible to be CPU bottlenecked and not be ram bottlenecked at the same time.

[HKZeroFive]

10 minutes ago, porina said:

If faster ram is helping you, you're ram bottlenecked. It is possible to be CPU bottlenecked and not be ram bottlenecked at the same time.

I'd like to see such a case. I believe it's only possible for faster RAM to only benefit situations where the CPU is the bottleneck.

 

The definition of a memory bottleneck is not having enough physical memory. It doesn't relate to memory speeds/frequency.

[porina]

2 hours ago, HKZeroFive said:

I'd like to see such a case. I believe it's only possible for faster RAM to only benefit situations where the CPU is the bottleneck.

 

The definition of a memory bottleneck is not having enough physical memory. It doesn't relate to memory speeds/frequency.

In the context of this discussion I think it is pretty obvious we're talking about ram bandwidth. If the ram bandwidth is insufficient, it will choke the CPU. Of course, if you're not also CPU limited, then the ram wont have an impact. See it as a multiple-level bottleneck. If you increase the CPU power when the ram is limiting, you will not get significant gains. Speeding the ram first will relieve that.

 

I never liked the phrase bottlenecked anyway, and think of it more as the limiting factor. A specific example I can think of is prime number searching using code with small FFT size. You can check this out with a customised Prime95 benchmark to enable to smaller sizes in testing, or do manual testing with other software like LLR. Small FFT tests fit inside the processor L3 cache so are not impacted by ram bandwidth at all. Large FFT tests will exceed the L3 cache, and become more ram bandwidth limited.

[HKZeroFive]

3 minutes ago, porina said:

In the context of this discussion I think it is pretty obvious we're talking about ram bandwidth. If the ram bandwidth is insufficient, it will choke the CPU. Of course, if you're not also CPU limited, then the ram wont have an impact. See it as a multiple-level bottleneck. If you increase the CPU power when the ram is limiting, you will not get significant gains. Speeding the ram first will relieve that.

Huh, somehow that makes sense if you explain it as a 'stacked bottleneck' where the CPU and RAM are both limiting factors.