*OFFICIAL* Alienware X Series Owners Lounge and Discussion

Discussion in '2015+ Alienware 13 / 15 / 17' started by HaloGod2012, May 11, 2021.

  1. Tyche_Tychon

    Tyche_Tychon Notebook Enthusiast

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    Hey guys!

    I know that for this generation trfc can affect ryzen cpu performance greatly, but what about intel cpus? I ask because I’m getting a 7i soon, and since it doesnt support xmp, this ram is the best i can get (cl 18, 20, 20 40) : https://www.amazon.com/OLOy-2x16GB-260-Pin-Laptop-MD4S1632180BZ0DH/dp/B09338C27Y?th=1

    H
    ere are the zen timings:
    https://i.ibb.co/VQbtr1r/244-D7-B51-FF34-42-EF-A7-DD-688-AFD30825-A.jpg

    One thing I noticed between this ram and the next best alternative is the trfc which is a bit high (stock ram should come with trfc 550). Thoughts on this?
     
  2. ringoffire

    ringoffire Notebook Enthusiast

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    The OLOy ram has great specs on paper, the slow trfc as you noted, and seems to fail to perform better than stock ram in some of the benches around here and reddit. One head to head in reddit the OLOy ram was 3-7% slower across the board in a variety of benchmarks than impact ram. Stick to kingston impact ram if you want the small performance bump. May have more options if you get XMP support like the X17 for ram, but compatible voltages will still be a big challenge- L7i has no XMP unless someone figures out how to get into the advanced bios.
     
  3. Tyche_Tychon

    Tyche_Tychon Notebook Enthusiast

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    Are you referring to this thread here?: https://www.reddit.com/r/GamingLapt...urce=share&utm_medium=ios_app&utm_name=iossmf

    While I agree with the testing methodology, its important to note that he tried the 16gb variant (2x8) which is single rank, and compared it to the 32gb (2x16) hyperx dual rank variant, which I suspect is the cause for the discrepancy between the two. The oloy has much lower latency @ 11% less than the hyperx, and I wonder what kind of scores they would have gotten with the 32gb dual rank variant of the oloy ram.
     
  4. werdmonkey4321

    werdmonkey4321 Notebook Evangelist

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    Someone was asking for Tomb Raider benchmarks so here they are. These were done on an external monitor.

    Benchmark 1:
    i7-11800H: Stock setting except a 90 mV undervolt on the Core and Cache.
    RTX 3080: Stock settings

    Tomb Raider 90mV undervolt.JPG

    Benchmark 2:
    i7-11800H: +400 Mhz turbo, 90 mV undervolt on the Core and Cache
    RTX 3080: +120 Mhz Core, +1200 Mhz Memory

    Tomb Raider 90mV undervolt +120 Core +1200 Memory.JPG
     
    Last edited: Aug 15, 2021
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  5. bsch3r

    bsch3r Notebook Evangelist

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    Which Kingston 3200 CL 20 mem do I have to buy? There are single rank and dual rank kits (2x16). Does single vs dual rank even matter on Intel platform (on Ryzen it does)?
     
  6. etern4l

    etern4l Notebook Virtuoso

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    HyperX/Fury Impact - I doubt there is more than one variant per capacity, but if there are dual-rank 2x are preferred. Every time I looked in the past, the 2x16GB kits were dual-rank, but do double check on kingston website.
     
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  7. bsch3r

    bsch3r Notebook Evangelist

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    The original Kingston 3466 modules are single rank according to CPUID. Dell cheaped out again... Maybe this is an explanation for the poor performance/latency. Ordered Kingston Fury dual ranks 3200 CL20 (careful, also single ranks are sold). Should be here in 4-5 days. will report how it goes.
     
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  8. etern4l

    etern4l Notebook Virtuoso

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    Good luck. FYI @alaskajoel has these modules in his Precision, and reported approx. 90ns latency too. Looks like there is a bottleneck due to HW limitations or BIOS settings (the 2T command rate perhaps) which is responsible for these poor memory latency results in latest Dell/AW laptops :(
     
    Last edited: Aug 15, 2021
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  9. captn.ko

    captn.ko Notebook Deity

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    A bit dissapointing that the new flagship X17 with 3080 and CPU + GPU OC (bench 2) can only match A51mR2 stock performance :(

    stock
    sottr stock.JPG

    OC
    sottroc.JPG
     
    Last edited: Aug 15, 2021
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  10. werdmonkey4321

    werdmonkey4321 Notebook Evangelist

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    Yeah, unfortunately dynamic boost 2.0 is holding the laptop back. The 210W combined total power budget between the CPU+GPU causes strange power throttling behavior when the laptop exceeds those thresholds.
     
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