Been tracking DDR5 prices in anticipation for the upcoming release of AMD Zen 4 on September 26th. Seems like a good price for a standard non RGB kit. Cheapest local stock I could find is $317 + shipping at Skycomp.
CamelCamelCamel.
Price in title please
has there been any release/benchmarks released from AMD on the "optimal" speed to pair with zen4?
not that I'm aware of. Though the next cheapest price for a 6000mhz kit is a good ~$85 more. dont think its worth it at that point
Leaks/rumors suggest optimal to be 6000
Zen 4 Infinity Fabric runs at 3000Mhz, meaning the 6000Mhz DDR5 will be the most effective as it will run 1:1 and not asynchronous ;)
Similar to how Zen 3 likes 3600MHz RAM as that is 1:1 with it's default Infinity Fabric at 1800Mhz …
is C36 as bad as it sounds?
Or is CAS Latency totally different on DDR5 (compared to DDR4)
That's normal for DD5, double the DDR4 CAS latency. Higher bandwidth on DDR5 so that evens things out.
Yeah and nah :P Remember CAS is measured in cycles, so it depends on frequency :/
So if you measure the nanosecond time it takes to fetch data from RAM (and you assume EVERYTHING else is equal - which it will never be!!):
DDR4 @ 3200 with CAS16 = DDR5 @ 6400 with CAS32!
So, in theory, to be equivalent latency of DDR4 @ 3600 CL16 you will need DDR5 @ 7200 CL32
but keep in mind there are other technologies in the DDR5 spec to make up for latency like:
higher bandwidth, shorter fetch times, smarter prefetch, smaller and faster gates etc, etc
Gonna wait til there's more info on the new EXPO stuff
Good speed considering it's 1.25v ram, and decent timings. Most kits at 5600 are already at 1.30v or 1.35v, with similar or worse timings.
This or the Corsair Vengeance 6000Mhz for 405$?
This generation AMD build is going to be expensive. I'll be holding off for a year, maybe mid next year.
My 5800x is just fine till then.
yea same, I will keep my 3900 till the pricing and any potential issues settles
It is now discounted to 260$ on Amazon.
Looking for 6000MHz :(
Add price to the title. ;)