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i7-5820k: faster memory worthwhile?

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post #1 of 27 (permalink) Old 03-25-2019, 01:46 AM - Thread Starter
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i7-5820k: faster memory worthwhile?

I have an i7-5820 that's pretty much tapped out @ 4.4 Ghz. The memory I have is Corsair Vegneance LPX 2666Mhz. 16GiB 4x4GiB CMK16GX4M4A2666C. I managed to get it to 2860Mhz. @ 16-18-18-35 1T. I figure the upper limit on memory speed for my Asrock x99 Extreme 4 is 130 Mhz. BCLK * 26.66 (the maximum memory multiplier for Haswell-E's) = ~3465 Mhz. Would it be worth it to buy faster memory for this rig? I'd only be gaining some 600Mhz. in effective memory speed and maybe better timings.
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post #2 of 27 (permalink) Old 03-25-2019, 02:00 AM
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The sweet spot is 3200 CL14 or tighter

Maybe you can get 145 FPS instead of 144FPS when you are cpu limited. so dont know if it is worse the costs

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post #3 of 27 (permalink) Old 03-25-2019, 04:18 AM
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After updating my bios I had the option for 3200 ram with 100bclk. Msi x99s sli plus, 5820k, and 2666 cas14.

I recently went to 3200 cas14 and while it's a little quicker, not really noticeable day to day.

I would suggest either upgrading something that would have a bigger impact-M.2? - or save for a complete upgrade.

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post #4 of 27 (permalink) Old 03-25-2019, 04:23 AM
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Faster RAMs mostly raises minimum FPS, gives faster system response and helps a little with FPS fluctuation, resulting in slightly higher average FPS. Don't expect anything like changing the CPU to 5930k ofc

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post #5 of 27 (permalink) Old 03-25-2019, 06:06 AM
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Hi,
No.
You'd have to spend 400.us for 4x8gb's because there's no samsung b-die in 4gb sticks or 2x8gb and run in dual channel instead of quad channel for half price.
https://benzhaomin.github.io/bdiefinder/

DDR5 will probably be released fairly soon maybe it would be an option for x99

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post #6 of 27 (permalink) Old 03-25-2019, 08:47 AM
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Quote: Originally Posted by 8051 View Post
Would it be worth it to buy faster memory for this rig? I'd only be gaining some 600Mhz. in effective memory speed and maybe better timings.
I'd see if there is any further tuning that can be done with what you've got as buying faster memory for a Haswell-E probably isn't going to be a worthwhile upgrade at this point.

Quote: Originally Posted by ThrashZone View Post
DDR5 will probably be released fairly soon maybe it would be an option for x99
DDR5 will need a memory controller designed for it and will not be a drop in replacement for DDR4, certainly not for a memory controller designed five years before the DDR5 standard.

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post #7 of 27 (permalink) Old 03-25-2019, 08:51 AM
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Hi,
Can't say I'm disappointed Blameless I've spent way too much for ram as it is on both systems

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post #8 of 27 (permalink) Old 03-25-2019, 04:06 PM
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I'd say go for it if you plan to keep running your system longer. If you're after a particular set of ram, once it's gone it's gone.

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post #9 of 27 (permalink) Old 03-25-2019, 08:07 PM - Thread Starter
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I was more interested in whether or not faster RAM would help w/minimum FPS. Would a 6850K give me more bang for my buck than an extra 600Mhz in memory speed for my existing 5820k?
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post #10 of 27 (permalink) Old 03-25-2019, 08:23 PM
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Quote: Originally Posted by 8051 View Post
I was more interested in whether or not faster RAM would help w/minimum FPS. Would a 6850K give me more bang for my buck than an extra 600Mhz in memory speed for my existing 5820k?
A 6850k is 350 dollars, you could get a used 5960x for that, not sure its worth.

Edit: https://cpu.userbenchmark.com/Compar...60X/3606vs2580 up to you, I wouldn't do that. I would go 5960x or even better, a 6900k whcih you may be able to talk down to 500ish.

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