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AMD Athlon X4 845 Processor (Carrizo ) Review

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Jul 8, 2016.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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    We review the AMD Athlon 845, a quad-core processor that can be seated into FM2/FM2+ compatible motherboards. It is the first processor from AMD that we test that is based on the Carrizo architecture,...

    AMD Athlon X4 845 Processor (Carrizo ) Review
     
  2. Graudigyen

    Graudigyen New Member

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    On 1st page its says MSI AM1 (which is different socket motherboard). Overall, a great little processor and review! ;)
     
  3. Fox2232

    Fox2232 Ancient Guru

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    Good. I liked this CPU from moment I saw it in geekbench results.
    It is worth noting that while it does not have unlocked multiplier, it fan be overclocked through fsb OC.
     
  4. alanm

    alanm Ancient Guru

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    Sounds like a great CPU... for browsing the internet.
     

  5. vazup

    vazup Master Guru

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    I wish Hilbert also included at least one i5 benchmark and not just a huge selection of super high end i7 processors.
     
  6. Fox2232

    Fox2232 Ancient Guru

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    You can give it deserved credit. Cost oriented, casual 60Hz gamers are buying GPU which would be bottleneck gaming instead of this CPU anyway (in many scenarios). So, it is OK to be sometimes CPU, sometimes GPU limited.
    (Alternative would be big overshoot in either GPU or CPU and that's no longer very cost efficient.)
    Even with RX-480 out and RX-470/460 coming.
    I think RX-470/460 would be optimal for this CPU.
     
  7. Ryu5uzaku

    Ryu5uzaku Ancient Guru

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    It seems to be a decent jump from 7870 in terms of core performance considering 3.5/3.8 clocks vs 3.9/4.1
     
  8. Kaarme

    Kaarme Ancient Guru

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    AMD needs to get Zen out as soon as possible so that we would have the first interesting AMD CPU review in a good long while. No, it would actually be the first interesting CPU review at all for years, since Intel is only producing more of the same with pitiful gains in this no competition situation.
     
  9. Undying

    Undying Ancient Guru

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    Looks like it would bottleneck even those cards.

    Sadly in this times for people who game i would recommend even some Pentium cpu before this.

    Come on Zen...
     
    Last edited: Jul 8, 2016
  10. vbetts

    vbetts Don Vincenzo Staff Member

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    For a budget machine for gaming, this could be an awesome CPU. It can overclock on average about 4.1-4.3 BLK clocking from what reviews have shown of it.

    For a cpu under $80 that's not bad.
     

  11. Fox2232

    Fox2232 Ancient Guru

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    But those choke on multi threaded workloads. Anything below i5 is not that great. But for 60Hz gamers, even that Pentium is mostly OK.

    I would call i3-6100 as king of low cost gaming if OC was a guaranteed thing.
    But even then it can't be reasonably compared. CPU costs nearly double. You want to pair it with DDR4 and that means decent MB
     
  12. Twiddles

    Twiddles Maha Guru

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    This. The i3 is just perfect for around GTX 960/RX 470 and below. If you buy an i3 with a decent board you can use the IGP and save another two months for a half decent card. They aren't that expensive and will last you some time. Even second hand they have some decent resale value.

    CPU: €115
    Motherboard: ASUS H110M-PLUS D3 for €64
    RAM: €36 for 8GB 2x4 1600
     
  13. schmidtbag

    schmidtbag Ancient Guru

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    Weird, hasn't this CPU been out for a while now?

    I'm not expecting this to happen, but I'd be really interested in tests against the 7860K where it has the same base and turbo frequency as the 845. Even though the 845 is clocked lower, it still had a noticeable performance difference. Overall though, I'm a bit disappointed about how minimal the performance improvement is. Regardless, Excavator is roughly what Bulldozer should have been. It seems to be modestly competitive with Sandy Bridge (when you also account for wattage and price point). Just to think how much better AMD's financial situation would be if this is what they released back in 2011.

    By how much, though? I understand the lack of IGP ought to make that a bit easier to do, but I figure it's still tough.
     
  14. SplashDown

    SplashDown Master Guru

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    Couldn't agree more...
     
  15. PrMinisterGR

    PrMinisterGR Ancient Guru

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    I was one of the few that probably found the Bristol Ridge reveal more interesting than the Polaris reveal, at the event on June.

    What they have managed to squeeze out of 28nm is impressive. On total, since Bulldozer was out, they have improved IPC almost 50% and power efficiency another 50% almost. All while staying at GloFo 28nm. I honestly hope that some of this amazing work somehow translates to Zen at 14nm.
     

  16. Fox2232

    Fox2232 Ancient Guru

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  17. chispy

    chispy Ancient Guru

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    Nice review Hilbert thank you , great to see very low end CPUs reviews again here on Guru3D. For what it is i believe it could be at a bit lower price since i remember when i bought my one and only , old AMD APU A6-3650 FM1 in 2011 it cost me only $89.99 and it was bundle with a free cheap Biostar motherboard and one free cheap stick of G.Skill ddr3-1600Mhz memory , it was sold as a bundle with a massive discount at check out :giggle2: at newegg.com. I end it up paying exactly $89.99 for a complete system back then in 2011 hence why i believe this very low end CPU should cost around ~$59 US or less on this year 2016 as it compares to that very low end APU 3650 system i built in 2011 in CPU performance( minus the integrated Graphics Card on this 845 cpu that my A6-3650 APU has ).

    This CPU will bottleneck even an nvidia 750Ti , i know it did on my APU 3650 , best pair this up with a GTX 950 or lesser nvidia card or / and R9-380 or lesser AMD video card as anything more it is a waist for a low budget gaming machine like this. this is my own personal opinion based on experiences with very similar CPUs.
     
    Last edited: Jul 8, 2016
  18. schmidtbag

    schmidtbag Ancient Guru

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    I doubt that very much, unless you're running a 32-bit OS. The A6-3650 uses PCIe 2.0, and to my knowledge only had 4 lanes available to external slots (probably more if you disable the IGP in BIOS). Meanwhile, the 845 has PCIe 3.0 and 8 lanes available. The 750Ti, to my knowledge, is PCIe 3.0. Obviously PCIe is backward compatible, but you'll still probably lose some performance using a newer card on an older socket. Lastly, the A6 is almost a full GHz slower.
     
  19. PrMinisterGR

    PrMinisterGR Ancient Guru

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    It doesn't seem like any crazy bottleneck. Anything with 1/3 the power of the 1080 could probably put this CPU to good use. NVIDIA cards will probably work better with it under DX11, AMD cards under DX12.
     
  20. chispy

    chispy Ancient Guru

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    Dude at this very low end rock bottom of the spectrum of CPUs it does not matter PCIe 3.0 x 16 or PCie 2.0 x 16 as it does not make a lick of difference in the the total FPS and you should know this already , PCIe 3.0 not needed at all on this cpu as its is too slow to make use of it. My now old A6-3650 can run 16x 2.0 on the only PCIe available on the motherboard i use with it. Also running windows 7 x64 bit NOT 32bit here. I have it overclock to 3.8Ghz via bclk @ 146 and yes is running the same as this new 845 CPU clocks , at this clocks 3.8Ghz it did not made any difference if at all , it still did bottleneck my 750Ti. Also you are totally wrong thinking this cpu A6-3650 has 4 lanes available and 16 for the GPU = 20 lanes , it has in fact 24 lanes and that is with the IGP enable.

    If you have hands on experience with A6-3650 APUs or this 845 CPU please prove me wrong , i doubt you can ;) , i know my hardware insight out.

    It's an ok cpu for web browsing , social media but not for gaming , not at all :)


    http://www.guru3d.com/articles-pages/amd-a6-3650-apu-review,2.html

    http://www.legitreviews.com/amd-a6-3650-2-6ghz-llano-apu-review_1655/17

    http://www.cpu-world.com/CPUs/K10/AMD-A-Series A6-3650 AD3650WNZ43GX (AD3650WNGXBOX).html

    http://hwbot.org/submission/2395219_chispy_cinebench___r11.5_a6_3650_3.12_points


    [​IMG]
     
    Last edited: Jul 8, 2016

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