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Guru3D.com » News » AMD X370 B350 A320 X300 and B300 / A300 Compared - Only SLI for X370

AMD X370 B350 A320 X300 and B300 / A300 Compared - Only SLI for X370

by Hilbert Hagedoorn on: 02/24/2017 08:00 PM | source: | 30 comment(s)
AMD X370 B350 A320 X300 and B300 / A300 Compared - Only SLI for X370

AMD announced six chipsets for Ryzen based on AM4: X370, B350, A320 and the mini ITX X300, B300 and A300 with the X370 and B350 already in pre-order and availability next week. 

The lads over at ComputerBase compiled an overview chart to demo the chipsets differences in a better to understand manner features wise. First off, it looks like only the X370 chipset is going to support SLI. That means the B350 would not support SLI (but does support Crossfire). THis information has been confirmed. We are not sure why but Nvidia might still be licensing SLI functionality and thus SLI supports adds a charge per sold motherboard. The B350 series is a more budget aimed one so the choice makes sense.

You'll notice there are 20 PCIe 3.0 lanes pulled from the Ryzen processor. Ryzen has 24 of them yet 4 are being used to interface with the chipset. Then depending on the chipset used it adds gen 2.0 PCIe lanes through the chipset. The X370 will add 8 lanes, B350 6 lanes and onwards. Have a peek at the chart for more details.

  

I / O interfaces of the chipsets and processors
X370B350A320X300 / B300 / A300Ryzen (CPU)Bristol Ridge (APU)
PCIe 3.0 0 0 0 4 20 * 10
PCIe 2.0 8 6 4 0 0 0
USB 3.1 Gen 2 (10 Gbit/s) 2 2 1 1 0 0
USB 3.0 6 2 2 2 4 4
USB 2.0 6 6 6 6 0 0
SATA 6 Gbit / s 4 2 2 2 2 2
SATA-Raid 0/1/10 0/1/10 0/1/10 0/1 - -
Overclocking Yes Yes - Yes ** - -
CrossFire / SLI Yes / Yes Yes / - - - - -
* 18 when 2 x SATA is running
** Only X300

 
Each chipset will add USB ports, but the Ryzen processor also offers four native USB 3.0 ports. There is support for RAID 0/1/10 configurations as well as Overclocking support on the X370, B350 and X300 chipset. Obviously the motherboard partners can add 3rd party chips to increase USB 3.0 and so on. The four PCIe 3.0 links for X300 / B300 / A300 seem to be a bit odd, we'll try and confirm that soon.



AMD X370 B350 A320 X300 and B300 / A300 Compared - Only SLI for X370 AMD X370 B350 A320 X300 and B300 / A300 Compared - Only SLI for X370




« Valve Introduces Steam Audio · AMD X370 B350 A320 X300 and B300 / A300 Compared - Only SLI for X370 · Mass Effect: Andromeda PC Requirements »

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ViRGE
Member



Posts: 36
Joined: 2016-12-23

#5397693 Posted on: 02/24/2017 11:36 PM
Anyone else find it odd that the SFF chipsets add PCI-Express 3.0 rather then 2.0?

Also, this just confirms what i've been saying about SFF and USB, they do indeed have more then just what the processor gives

It's not odd, all AM4 Cpus are Socs, the X370, B350 and A320 are not true chipsets, they are I/o hubs that consume PCI-E gen3 from the cpu and enable secureBoot in the UEFI, just that; the SFF boards lack the I/O hub, so more PCI-E gen3 lanes are available, the X300 for example its really small and only handle secureBoot and overclocks, the rest is all provided by the CPU on SFFs boards.

cryohellinc
Senior Member



Posts: 3532
Joined: 2014-10-20

#5397734 Posted on: 02/25/2017 01:59 AM
smear campaign, cheap and dirty.

HeavyHemi
Senior Member



Posts: 6952
Joined: 2008-10-27

#5397741 Posted on: 02/25/2017 02:10 AM
smear campaign, cheap and dirty.


Please elaborate.

SSD_PRO
Senior Member



Posts: 180
Joined: 2013-02-07

#5397761 Posted on: 02/25/2017 02:50 AM
Back the horses up on this one. This can't be real. You need PCIe 3.0 x4 to run modern M.2 drives and they come close to saturating at max loads. Unless they are going to allocate the remaining 4 lanes from the CPU to run M.2 direct, this would be a problem. Limiting the chipset to old PCIe 2.0 would be eyeroll but not un-amd. AMD has always suffered from reduced storage performance. My bet is this is fake. If real, not a deal breaker but very disappointing.

For anyone wanting to see the Z270 block diagram, here it is: http://www.intel.com/content/dam/www/public/us/en/images/diagrams/z270-chipset-block-diagram-16x9.png.rendition.intel.web.1072.603.png

edit - actually, now looking again, I see the * on the 20 lanes from the CPU. It drops to 18 if SATA is in use? I guess the suggestions is there are 16 lanes for graphics and 4 left for M.2/U.2, as long as you don't use any SATA ports? If you do then you get x2? Uh.... again I smell fake.

Aura89
Senior Member



Posts: 8362
Joined: 2008-07-31

#5397764 Posted on: 02/25/2017 02:57 AM
smear campaign, cheap and dirty.


....what?

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