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*** AMD "Zen" thread (inc AM4/APU discussion) ***

Discussion in 'CPUs' started by Boomstick777, Apr 10, 2015.

  1. iHATEMacs

    Associate

    Joined: Aug 29, 2010

    Posts: 18

    Location: Southampton, England

    I'm sure the XFR essentially stands for auto overclocking based on the cooler and the temperatures. The 1700X and 1800X mean they can be manually overclocked by enthusiasts.
     
  2. Fishbait

    Wise Guy

    Joined: May 12, 2012

    Posts: 2,136

  3. Troezar

    Mobster

    Joined: Aug 6, 2009

    Posts: 2,774

    It seems the choice hinges on how much single core speed you're prepared to sacrifice for the obviously very strong multi core performance.

    I'm betting over the next few years Ryzen will get stronger whilst Kabylake will drop off. A bit like AMD GPUs vs Nvidia over time ;)
     
  4. 16979

    Gangster

    Joined: May 27, 2013

    Posts: 116

    Location: newcastle

    those that have the corsair h100 cooler range I contacted corsair and they going to send me the new bracket free of charge
     
  5. five8five

    Wise Guy

    Joined: Jun 2, 2016

    Posts: 1,249

    They can all be manually overclocked.
     
  6. Gibbo

    Commissario

    Joined: Oct 17, 2002

    Posts: 30,301

    Location: OcUK HQ

    All three processors are the same, they all have XFR technology. The X varients have higher boost clocks hence the X, otherwise all three CPU's feature XFR and the only difference is clock speeds.
     
  7. shankly1985

    Capodecina

    Joined: Nov 25, 2011

    Posts: 18,647

    Location: The KOP

    Did you email them? I have h100i
     
  8. iHATEMacs

    Associate

    Joined: Aug 29, 2010

    Posts: 18

    Location: Southampton, England

    Yes, you're right, my bad. I quick searched revealed this:

    "AMD's upcoming Ryzen processors are "unlocked," in that they feature unlocked base-clock multipliers that let you easily overclock them; yet a few of its variants feature a brand extension "X." As our older article details, the "X" refers to availability of the XFR (extended frequency range) feature. Think of it as a second stage boost that rewards good CPU cooling with higher CPU clocks set automatically. The Ryzen R7-1800X, R7-1700X, R5-1600X, R5-1400X, and R3-1200X feature this. "

    Thus the 1700 doesn't have XFR (extended frequency range).
     
  9. harney

    Wise Guy

    Joined: Jul 8, 2013

    Posts: 1,663

    Location: Middle age travellers site

    Long shot.....

    maybe the X stands for this and the non X does not do it maybe non X does a Z movement :D

    [​IMG]
     
  10. P.B

    Wise Guy

    Joined: Apr 2, 2015

    Posts: 1,500

    Was hoping it was a water clock lol.
     
  11. Troezar

    Mobster

    Joined: Aug 6, 2009

    Posts: 2,774

    Makes sense why the 1700 may be the best option if you intend to manually overclock. The X variants sound like they are intended for people that don't want to overclock but will pay a bit more for the chip to do it for them.
     
  12. Panos

    Sgarrista

    Joined: Nov 22, 2009

    Posts: 9,210

    Location: NE Lincolnshire

    And to those who search for value for money.
    A US based site has tonight 2 offers.
    6900K @ $1049 (official Intel price)
    Or at the same price you buy a fully build PC with R7 1700, 8GB RAM, 240GS SSD, RX480 8GB, PSU, cooler, case with led lighting, keyboard and mouse.
     
  13. Rossi~

    Capodecina

    Joined: Nov 5, 2010

    Posts: 18,245

    Higher density usually has worse timings and yes, more DIMMs = more strain on IMC. Not sure if that's still the case.
     
  14. Harlequin

    Mobster

    Joined: Jun 17, 2004

    Posts: 2,670

    Location: Eastbourne , East Sussex.

    So far I'm impressed. Everything Silent Scone has said is truth and gospel about Ryzen has turned out to be utter rubbish. No 3000+ ram support , no 4ghz cpu....
     
  15. harney

    Wise Guy

    Joined: Jul 8, 2013

    Posts: 1,663

    Location: Middle age travellers site

    that says it all
     
  16. five8five

    Wise Guy

    Joined: Jun 2, 2016

    Posts: 1,249

    They all have XFR.

     
  17. TheBiznes

    Gangster

    Joined: Sep 17, 2007

    Posts: 391

    This looks interesting overclock control by core?
    [​IMG]
     
    Last edited: Feb 22, 2017
  18. Panos

    Sgarrista

    Joined: Nov 22, 2009

    Posts: 9,210

    Location: NE Lincolnshire

    The CPU Wattman apparently according to the rumours, allows to turn off cores, to push for higher overclocks on the rest.
    So we shouldn't be surprised that if we can turn off half the cores on the 8c/16t, and overclock the other 4 under water pretty high.
     
  19. P.B

    Wise Guy

    Joined: Apr 2, 2015

    Posts: 1,500

    That should make a good gaming cpu 5ghz on 4 cores
     
  20. harney

    Wise Guy

    Joined: Jul 8, 2013

    Posts: 1,663

    Location: Middle age travellers site

    Very interesting so a profile for games with higher 4c speed and a profile for rendering encoding ect with 8c enabled with lower speed