r/Amd•
GenericNoob

Does Duel Channel Matter for Ryzen's infinity fabric

Discussion

Is there a difference in performance from duel to single channel for ryzen?

Posted Mar 26, 2017, 9:50 PM UTC

1315
pin70MSI Armor RX480 4GB, R7 1700 @3.6GHZ•

One usually is a fight between two persons with their own lives at stake

10
ObnoxiousLittleCuntnForce 420 Geforce IGP with SoundStorm•

Duel... to death!!!

3
KetcchupRyzen 7 1700 @3.7GHz + X370 Prime Pro + 32GB@2933MHz + R9 270x•

Infinity fabric frequency goes up with ram frequency, not memory channels. But I'm not sure how single channel will affect considering Ryzen 7 is 8 cores

5
mcmurray89•

I am running a singlke 16Gb 3000 stick and it does not seem to matter at all when I comapre my cinebench etc to otehrs online.

Its like being a power bottom speed is the name of the game ;).

4†
PeteRaw1800x / 390x / Ultrawide FreeSync•

Ryzen doesn't play well with 3000 or 3400 :(

4
SovietMacguyverAMD Zen Master - Ryzen R7 1700, RX 480, 3600/16 DDR4•

Yet. It will.

5
PeteRaw1800x / 390x / Ultrawide FreeSync•

I didn't say it wont work, I just said it doesn't like 3000 and 3400. Ryzens don't have a memory divider for those two speeds.

3
SovietMacguyverAMD Zen Master - Ryzen R7 1700, RX 480, 3600/16 DDR4•

Thats a non issue. 3000mhz is effectively the same as 2993mhz. 3200 isnt far off from 3400, and if that is too low for you, there will be a divider not far north of 3400 you could use too. In time.

Rated speeds arent an absolute. I run 3600 at 2666 right now.

2
AjBlue7•

Overclocking ram is a real thing with Ryzen. People are finding that timings don't really matter, so some people are loosening up the timings and getting the same gains with an overclock.

2
DntMessWitRohan•

Which brand and model are you using?

1
mcmurray89•

Corsair vengeance on a tomahawk. BIOS 1.32 from MSI forums.

1
oors•

Should make a decent difference though how much is hard to gauge, moving from dual channel to single channel would halve the amount of memory bandwidth available. media creation type workloads would definitely be impaired (zipping files,rendering,transcoding ect),

However Latencies and fabric speeds would be uneffected so it may not effect things like games that much which are more latency dependant. would have to test it to be 100% sure.

3
ZintoatreeR7 1700 @ 3.75 GHz | RX 470•

I may check this out tomorrow. Got a lot of stuff in the works but this kind of ties in with it.

2
Kourinn•

Have you gotten a chance to test single vs dual channel RAM?

1
ZintoatreeR7 1700 @ 3.75 GHz | RX 470•

Not yet. I've been putting together the video for my last benchmark and I don't know what I am doing so it is taking forever

1