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  1. #1
    ROG Guru: Green Belt Array FlanK3r PC Specs
    FlanK3r PC Specs
    MotherboardAsus Maximus VIII Hero+Asus 970 Pro Gaming/AURA (and many others)
    ProcessorCore i7-6700K + FX-8370 (and many others)
    Graphics Card #1Strix R9 390X DCIII OC
    Graphics Card #2AMD RX 480
    Graphics Card #3Saphire R9 270X Toxic
    Graphics Card #4ROG GTX980TI Poseidon
    Storage #1Samsung 850 PRO 512 GB
    Storage #2HyperX 3K 240GB
    CPU CoolerRaijintek Triton + Silentium Fera
    CaseNZXT Noctis and Bitfenix Pandora LED
    Power SupplyCM V850 + Corsair TX750
    Keyboard Microsoft Sidewinder
    Mouse Razer Deathadder + A4tech 750BK
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    A10-7870K "last review of AMD until Zen" - 4.74 GHz stable OC, Ranger board

    Hi guys. We had nice years of Phenoms II, after little disappointment from Bulldozer FX-8150/8120. These CPus were not so bad, but people waited more. Multithread was solid, single worse. But much bigger issue we thought this will be real 8 core and 8 core performance. After some time we understand this is against 4c/8t Intel CPUs...Vishera was nice improvement over first Bulldozer. Yeah, OC awesome, performance clock to clock much better, better in games also. It was 2012 year. After 3 years are these CPUs still rock solid, but outdated also. Some reborn or interesting for someone could be high clockend FX-9590/9370 and last one steppings with FX-8320E, 8370E, 8370. E version as 95W TDP CPUs. Nice. But now we are waiting for new Zen...
    APU world is different story. All APUs from hardware point and performance view were good. Sometimes price cost was not ideal, but its not about it today...Year and half before we can seen Kaveri CPU in desktop. 3rd Bulldozer family with new socket FM2+. Now, in last month, coming light refresh Kaveri in A10-7870K. With some tets the higher IPC per core from Bulldozers and AMD CPUs ever.





    CPU is new stepping of old one A1 revision in 7850K etc. Interesting is also, under the heatspreader is not calssic TIM, but this metal plate.


    The CPU-Z show some information about chip. The classic frequency is 3900 MHz, but maximal turbo is up to 4200 MHz for CPU cores. The iGPU running at quite high 866 MHz at default settings. Interesting could be, the VID of CPU in load is high. ussually around 1.475-1.488V! iGPU around 1.22x V.


    Temperatures in idle and in load (stress test AMD stability overdrive). The metal between CPU and IHS is very good for temps. CPU with much higher voltage than 7850K is luke warm.




    CPU BOX is nice and bigger than another APU CPUs.


    New is also CPU cooler BOX. The similar is in the AMD FX! So copper heatpipes, and relatively quiet Cooler Master fan.



    Lets go for some benchamrks at stock:

    Superpi 4M (there is older CPUZ before after I updated it)



    GPUPI CPU100M nad GPU 1B




    AIDA bandwith memory and cache (2133 AMP profile memory)


    y-cruncher with AVX suppoer and some others instructions, results for 500M test


    wprime


    x264FHD


    x265


    Fritzchess


    Cinebench R10 single thread, R11.5, R15





    3D Marks and few older Games (DX10+DX11 also)






    UT3


    Far Cry II


    AVP


    Sniper Elite 2
    Who knows me, knows me ....AMD 3000+, AMD x2 4600+ EE, AMD X4 955 BE C2,2x AMD X4 965 BE C3, AMD X4 970 BE C3, AMD x4 975 BE, AMD x4 980 BE, AMD X6 1090T BE, AMD x6 1100T BE, 2x AMD FX-8120, 2x AMD FX-8150, FX-6300, FX-8300, FX-8320E, FX-8320, FX-8350, FX-8370, FX-8370E, FX-9370, FX-9590, AMD A8-3850, AMD A8-3870K, A8-5600K, A10-5800K, A10-6800K, A10-7850K, A10-7870K, A 5150, Athlon x4 860K, Intel i7-5960X, i7-6700K, Intel i7-4770K, Intel i7-980x, Intel i7 2600k, Intel i7-3770K, i7-3930K.

  2. #2
    ROG Guru: Green Belt Array FlanK3r PC Specs
    FlanK3r PC Specs
    MotherboardAsus Maximus VIII Hero+Asus 970 Pro Gaming/AURA (and many others)
    ProcessorCore i7-6700K + FX-8370 (and many others)
    Graphics Card #1Strix R9 390X DCIII OC
    Graphics Card #2AMD RX 480
    Graphics Card #3Saphire R9 270X Toxic
    Graphics Card #4ROG GTX980TI Poseidon
    Storage #1Samsung 850 PRO 512 GB
    Storage #2HyperX 3K 240GB
    CPU CoolerRaijintek Triton + Silentium Fera
    CaseNZXT Noctis and Bitfenix Pandora LED
    Power SupplyCM V850 + Corsair TX750
    Keyboard Microsoft Sidewinder
    Mouse Razer Deathadder + A4tech 750BK
    Headset HyperX Cloud
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    OS Windows 10 + Windows 7
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    FlanK3r's Avatar
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    B]Undervolting and overlcocking[/B]
    I think, the VID for CPU is very high, remmeber the 7850K had around 1.3V as VID, so why for next 100-200 MHz increase voltage so high? Interesting, the powerconsumption with this high voltage is not much higher than 7850K, only around +10W. But I was interesting for quick undervolting. Ater I saved around 25W of power consumption down...See results bellow.




    And now overclocking. Also I was looking forward for overlcok the new chip. Ussually your Kaveri 7850K or 7700K will be able to get around 4400 MHz at CPU and around 950-1000 at iGPU in average. With solid aircooling of course. And what about new 7870K? Wow, it was fun! The chip is very good for OC. +300 MHz better!

    With stock voltage I got 4600 MHz stable


    With max voltage 1.53V I stabilized afterall CPU at excelent 4746 MHz!


    Some test after OC= 4746 MHz CPU and 1050 MHz iGPU















    The A10-7870K surprised me. I thought, this will be only new higher clocked and "boring" Kaveri, but the overclocking, undervolting and overall better voltage and temps behaviors are nice bonus for me. So if you are enthusiast of AMD and you are looking for FM2+ CPUs/APU I can recommend you this A10-7870K
    Who knows me, knows me ....AMD 3000+, AMD x2 4600+ EE, AMD X4 955 BE C2,2x AMD X4 965 BE C3, AMD X4 970 BE C3, AMD x4 975 BE, AMD x4 980 BE, AMD X6 1090T BE, AMD x6 1100T BE, 2x AMD FX-8120, 2x AMD FX-8150, FX-6300, FX-8300, FX-8320E, FX-8320, FX-8350, FX-8370, FX-8370E, FX-9370, FX-9590, AMD A8-3850, AMD A8-3870K, A8-5600K, A10-5800K, A10-6800K, A10-7850K, A10-7870K, A 5150, Athlon x4 860K, Intel i7-5960X, i7-6700K, Intel i7-4770K, Intel i7-980x, Intel i7 2600k, Intel i7-3770K, i7-3930K.

  3. #3
    ROG Enthusiast Array edrak PC Specs
    edrak PC Specs
    MotherboardCrossblade Ranger
    ProcessorAMD A10 7870K @ 4.6 GHz
    Memory (part number)CMD16GX3M2A2133C9
    Graphics Card #1ASUS HD7870 DC2-2GD5-V2
    MonitorAsus VG248QE
    Storage #1KINGSTON SV300S37A240G
    Storage #2PNY SSD7CS2111-960-RB
    CPU CoolerCorsair H100i
    CaseRosewill Blackhawk Ultra
    Power SupplyCoolerMaster Solid Pro Gold 1000w
    Keyboard Logitech G510
    Mouse Logitech G700s
    Headset Razer Tiamat 7.1
    Mouse Pad ASUS Gaming Mat
    OS Windows 10 Pro
    Network RouterDLink DLG 4500

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    Flank3r,

    I have the A10-7870K @ 4.78 GHz but the voltage at its height is 1.664. is that too high a voltage for this chip or did I get extremely lucky and get great silicon? It looks to be completely stable as well.

  4. #4
    ROG Guru: Green Belt Array FlanK3r PC Specs
    FlanK3r PC Specs
    MotherboardAsus Maximus VIII Hero+Asus 970 Pro Gaming/AURA (and many others)
    ProcessorCore i7-6700K + FX-8370 (and many others)
    Graphics Card #1Strix R9 390X DCIII OC
    Graphics Card #2AMD RX 480
    Graphics Card #3Saphire R9 270X Toxic
    Graphics Card #4ROG GTX980TI Poseidon
    Storage #1Samsung 850 PRO 512 GB
    Storage #2HyperX 3K 240GB
    CPU CoolerRaijintek Triton + Silentium Fera
    CaseNZXT Noctis and Bitfenix Pandora LED
    Power SupplyCM V850 + Corsair TX750
    Keyboard Microsoft Sidewinder
    Mouse Razer Deathadder + A4tech 750BK
    Headset HyperX Cloud
    Mouse Pad Roccat Tatto
    OS Windows 10 + Windows 7
    Network RouterAsus RT-AC55U
    FlanK3r's Avatar
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    I think, 1.665V is too high for 4.78GHz 7870K and 24/7. I think, safe voltage is around 1.5-1.55V for 24/7
    Who knows me, knows me ....AMD 3000+, AMD x2 4600+ EE, AMD X4 955 BE C2,2x AMD X4 965 BE C3, AMD X4 970 BE C3, AMD x4 975 BE, AMD x4 980 BE, AMD X6 1090T BE, AMD x6 1100T BE, 2x AMD FX-8120, 2x AMD FX-8150, FX-6300, FX-8300, FX-8320E, FX-8320, FX-8350, FX-8370, FX-8370E, FX-9370, FX-9590, AMD A8-3850, AMD A8-3870K, A8-5600K, A10-5800K, A10-6800K, A10-7850K, A10-7870K, A 5150, Athlon x4 860K, Intel i7-5960X, i7-6700K, Intel i7-4770K, Intel i7-980x, Intel i7 2600k, Intel i7-3770K, i7-3930K.

  5. #5
    ROG Enthusiast Array edrak PC Specs
    edrak PC Specs
    MotherboardCrossblade Ranger
    ProcessorAMD A10 7870K @ 4.6 GHz
    Memory (part number)CMD16GX3M2A2133C9
    Graphics Card #1ASUS HD7870 DC2-2GD5-V2
    MonitorAsus VG248QE
    Storage #1KINGSTON SV300S37A240G
    Storage #2PNY SSD7CS2111-960-RB
    CPU CoolerCorsair H100i
    CaseRosewill Blackhawk Ultra
    Power SupplyCoolerMaster Solid Pro Gold 1000w
    Keyboard Logitech G510
    Mouse Logitech G700s
    Headset Razer Tiamat 7.1
    Mouse Pad ASUS Gaming Mat
    OS Windows 10 Pro
    Network RouterDLink DLG 4500

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    I thought that was high so I went ahead and lowered my overclock to 4.725 GHz

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