*** Official Clevo P870TM-R Owner's Lounge - Phoenix 5 ***

Discussion in 'Sager/Clevo Reviews & Owners' Lounges' started by Spartan, Jan 9, 2019.

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  1. Meaker@Sager

    Meaker@Sager Company Representative

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    Depends what you are doing at the moment. Plus even if CPUs get 20% faster the p870 is not suddenly obsolete.
     
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  2. ole!!!

    ole!!! Notebook Prophet

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    20%? i'd consider that obsolete. CFL is only around 15% faster than ivybridge in terms of IPC for some legacy workload. with faster frequency and only 15% IPC i can really feel the difference, especially when browsing.

    golden cove is said to have 30% IPC over CFL so that is gonna be a decent upgrade, assuming it does come in 2021 with at least close to 5ghz.
     
  3. yrekabakery

    yrekabakery Notebook Virtuoso

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    Looks like about 22% faster clock-per-clock in CB R15:

    cbr15-ipc-comparison-3ghz-scores.png
     
  4. Fromont

    Fromont Notebook Consultant

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    Oh don’t get me wrong, my last clevo lasted me 5 years and is still trucking in a lesser role. This one will be fine for me into 2025 I hope. It’s just that upgrades may no longer be feasible for it fairly soon.... I bought a 9700k because I had to replace the cpu, but I wouldn’t upgrade again unless forced to...
     
  5. ole!!!

    ole!!! Notebook Prophet

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    this one from Ian at anandtech also at 3Ghz, even with DDR3 shows less than 20%. assuming the chart is DDR4, some numbers seems off.

    https://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/9
    https://images.anandtech.com/doci/9483/01 - Gains over Sandy.png

    Sandy Bridge to Ivy Bridge: Average ~5.8% Up
    Ivy Bridge to Haswell: Average ~11.2% Up
    Haswell to Broadwell: Average ~3.3% Up
    Broadwell to Skylake (DDR3): Average ~2.4% Up
    Broadwell to Skylake (DDR4): Average ~2.7% Up
     
  6. yrekabakery

    yrekabakery Notebook Virtuoso

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    I thought you were talking about Ivy Bridge?

    Anyway Broadwell has an ace up its sleeve, which is the huge L4 cache. A 4.2GHz i7-5775C can actually beat a 5GHz i7-7700K in most games: https://www.purepc.pl/procesory/broadwell_niszczyciel_test_core_i5_5675c_i_core_i7_5775c?page=0,38
     
  7. Meaker@Sager

    Meaker@Sager Company Representative

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    Performance is going to vary between each application due to arch changes.
     
  8. ole!!!

    ole!!! Notebook Prophet

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  9. jc_denton

    jc_denton Notebook Deity

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    Lapped the 9900k even further, had 1 core being -10c colder than the rest from my last attempt.
    The chip is VERY thin now, way thinner than the 8086k I compared it to whilst lapping. Now pairing it with a 4.37mm tall copper ihs there were further improvements on temperatures, allowing for further undervolt.

    I would argue that doing the same to a KS would result in a relatively "cool" 5Ghz 8-core CPU.
     
  10. Falkentyne

    Falkentyne Notebook Prophet

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    Temp deltas, please? :)
     
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