Fallout 4 ridiculusly high performance gained by faster RAM

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Coseniath

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#1 Coseniath
Member since 2004 • 3183 Posts

This was posted from many users and some sites, but Techspot made some tests and the results are... stunning!

Memory Performance & Wrap Up

When benchmarking the Intel Haswell processors, the memory speed in the BIOS kept reverting back to 1333MHz (was an issue with the BIOS which has now been fixed) at every processor change rather than holding the DDR3-2400 XMP (Extreme Memory Profile). At first we accidently tested the Core i7-4770K with the memory clocked at 1333MHz and were perplexed by the much weaker than expected performance.

It was quickly spotted that the memory was running much slower than it ought to be, though we weren't entirely sure this was the cause of the massive deficit. Turns out it was, as moving the memory back up to 2400MHz resulted in a massive 67% increase in minimum frame rate for the Core i7-4770K.

A similar situation was found with the Core i3-4360, which went from a minimum of 41fps with DDR3-1333 memory to a minimum of 65fps with DDR3-2400.

Yes, we know there's a significant difference between the now obsolete 1333MHz memory speed and 2400MHz, but from memory I don't recall it having anything like that kind of impact on gaming performance. Interestingly the same variation in memory speeds had little impact on the AMD FX-8350's performance, as the processor was just 13% faster with the quicker memory.

Anyway, we found this interesting and it would suggest that Fallout 4 fans with Intel hardware will want to ensure they are running their memory as fast possible.

-------------

.... LOL!...

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napo_sp

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#2 napo_sp
Member since 2006 • 649 Posts

since when amd cpu and normal haswell support ddr4?

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Coseniath

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#3  Edited By Coseniath
Member since 2004 • 3183 Posts
@napo_sp said:

since when amd cpu and normal haswell support ddr4?

Since when DDR4 speeds go down to 1333MHz? :P

Obviously they failed to write DDR3 in the charts, which on the article they normally mention it as DDR3.

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Truth_Hurts_U

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#4 Truth_Hurts_U
Member since 2006 • 9703 Posts

Good thing I put DDR4 3000 (CAS 15) in all the new Skylake builds I do.

I'm running 1866 DDR3 with CAS 9 latency (bought it over 3 years ago)... I do pretty good with this future proofing.

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thereal25

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#5 thereal25
Member since 2011 • 2041 Posts

Wow. I had no idea that memory speed made much difference. I've only got 8gb of ddr3 1333hz.

(Maybe it's time for upgrade...)

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Yams1980

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#7 Yams1980
Member since 2006 • 3828 Posts

I was trying to figure out bluescreen problems a while ago on a pc and did this on purpose by putting ram speed down from 1600mhz down to below 1000mhz. My cpu usage went almost double in a video capture program i had. Which was kinda surprising.

It may not even be the lower ram speed, but maybe the fsb lowered also which lowered the frequency on the cpu causing the fps to drop

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zaku101

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#8  Edited By zaku101
Member since 2005 • 4641 Posts

This's the first game I've ever see have an impact more than 2-3 FPS when it comes to a Ram speed increases, there must be something fishy going on... Also keep in mind I hear the game is suppose to run abnormally over 60 FPS which might also play a factor.

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GTR12

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#9 GTR12
Member since 2006 • 13490 Posts

Is this 2004 again?

I have to OC my RAM for a game I'm downloading...

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Coseniath

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#10 Coseniath
Member since 2004 • 3183 Posts
@GTR12 said:

Is this 2004 again?

I have to OC my RAM for a game I'm downloading...

Which game required faster RAM back then?

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RyviusARC

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#11 RyviusARC
Member since 2011 • 5709 Posts

I have an i7 4770k and 2400mhz DDR3 RAM maybe I should try this test out.

Although I have 2 970s not a 980ti.

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Coseniath

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#12  Edited By Coseniath
Member since 2004 • 3183 Posts
@RyviusARC said:

I have an i7 4770k and 2400mhz DDR3 RAM maybe I should try this test out.

Although I have 2 970s not a 980ti.

I have an i7 4770K with 2133MHz RAM (but in tests like AIDA64 performs extremely well, even more than Avexir 3100MHz) and GTX970 and I was wondering why I was getting higher FPS than some other performance reviews.

That explained a lot...

ps: AIDA64 Memory test:

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#13 insane_metalist
Member since 2006 • 7797 Posts

@thereal25 said:

Wow. I had no idea that memory speed made much difference. I've only got 8gb of ddr3 1333hz.

(Maybe it's time for upgrade...)

You'll be wasting your money.

Fallout 4 is like the only game that even has an effect with RAM.

Usually it doesn't matter whether you're using 1333mhz or 2400mhz.

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#14  Edited By thereal25
Member since 2011 • 2041 Posts

@insane_metalist said:
@thereal25 said:

Wow. I had no idea that memory speed made much difference. I've only got 8gb of ddr3 1333hz.

(Maybe it's time for upgrade...)

You'll be wasting your money.

Fallout 4 is like the only game that even has an effect with RAM.

Usually it doesn't matter whether you're using 1333mhz or 2400mhz.

Yeah, that's what I suspected.

I'll probably wait until after the ps5 for my next upgrade.

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#15 GTR12
Member since 2006 • 13490 Posts

@Coseniath said:
@GTR12 said:

Is this 2004 again?

I have to OC my RAM for a game I'm downloading...

Which game required faster RAM back then?

Fallout lol

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deactivated-579f651eab962

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#16 deactivated-579f651eab962
Member since 2003 • 5404 Posts

Game runs pretty damn fine for me, might be my RAM might be the Titan X showing its metal. Still waiting for SLI though

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slateman_basic

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#17 slateman_basic
Member since 2002 • 4142 Posts

And how do I set the speed of my memory?

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ShadowDeathX

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#18 ShadowDeathX
Member since 2006 • 11696 Posts

Really want to know if Quad Channel vs Dual Channel has any impact on this.

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deactivated-59d151f079814

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#19 deactivated-59d151f079814
Member since 2003 • 47239 Posts

@ShadowDeathX said:

Really want to know if Quad Channel vs Dual Channel has any impact on this.

Honestly I think the point to take from this is not that ram speed is suddenly going to take a new precedent in performance increases, but how weird the programing of Fallout 4 really is..

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Coseniath

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#20 Coseniath
Member since 2004 • 3183 Posts
@slateman_basic said:

And how do I set the speed of my memory?

Go to your BIOS and enable the XMP profile. This will make your RAM running on the advertise speed (like 2133).

If you haven't done this before, your RAM would probably run with their JEDEC profile, sometimes with 1333MHz...

If you already have enabled XMP in your RAM, then the only thing left is to overclock your RAM...

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deactivated-5a9b3f32ef4e9

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#21 deactivated-5a9b3f32ef4e9
Member since 2009 • 7779 Posts

I use DDR4-2400 and I still get huge frame drops, the game just doesn't seem very optimized.

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deactivated-579f651eab962

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#22 deactivated-579f651eab962
Member since 2003 • 5404 Posts

@Postmortem123 said:

I use DDR4-2400 and I still get huge frame drops, the game just doesn't seem very optimized.

Wow, where ya been man?

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#23  Edited By deactivated-5a9b3f32ef4e9
Member since 2009 • 7779 Posts

@klunt_bumskrint:

Hey dude. I just took a bit of a break. Plus I haven't been gaming much this year.

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deactivated-579f651eab962

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#24 deactivated-579f651eab962
Member since 2003 • 5404 Posts

@Postmortem123: You buy a Titan X then don't do much gaming?! That's crazy talk

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Coseniath

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#25 Coseniath
Member since 2004 • 3183 Posts
@klunt_bumskrint said:

@Postmortem123: You buy a Titan X then don't do much gaming?! That's crazy talk

Decoration stuff. Why to place on your living room a vase with flowers, when you can place a nice TitanX?

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#26 slateman_basic
Member since 2002 • 4142 Posts

@Coseniath said:
@slateman_basic said:

And how do I set the speed of my memory?

Go to your BIOS and enable the XMP profile. This will make your RAM running on the advertise speed (like 2133).

If you haven't done this before, your RAM would probably run with their JEDEC profile, sometimes with 1333MHz...

If you already have enabled XMP in your RAM, then the only thing left is to overclock your RAM...

And what are the negative aspects to this?

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#27  Edited By KHAndAnime
Member since 2009 • 17565 Posts

@slateman_basic said:

And what are the negative aspects to this?

None really. Except you can't use an XMP and manual overclock simultaneously (which would be redundant anyways).