PC Processors

[phxrider]

I'm looking for the fastest JEDEC spec RAM for AM5/B650. NOT EXPO or XMP - fastest STOCK, NON-OVERCLOCKED memory in a UDIMM useable by AM5. This will obviously be 5200 for the 600 chipsets.

Looking for make/model. I know what it would be spec-wise, just looking to cut down on the research, which is a pain because everyone wants to talk about their overclocked speeds, not their stock JEDEC spec speeds.

[2DEZstb]

  To do this, you would have to check hundreds of memory kits that are delivered from the factory with jedec 5200mt/s and test them... have the strongest parameters, but in xmp ......    G.Skill  Ripjaws S5 / Trident Z5 /  Flare X5  DDR5-5200    CL 36-36-36-83 

Patriot Viper Venom  DDR5-5200  (PVV516G520C36K)   CL 36-36-36-68 

greetings

[phxrider]

Looking at the latencies, I was 99% sure those were all EXPO, and spot checking confirms it. But this is what I said in my post - everyone wants to talk about their EXPO/XMP speed - however when you look into them, most are JEDEC 4800 /  CL40+. As far as I can see, Crucial has JEDEC 5200 and 5600 and someone else I forget now, maybe PNY? I'm sure there are others, but due to how they advertise EXPO speed and JEDEC is buried in the spec sheet or not listed at all, searching is difficult and tedious.

For example, the Patriot lists:
• Base Frequency: PC5-38400 (4800MT/s)
• Base Timings: 40-40-40-76

• Tested Frequency XMP Profile 1: PC5-44800 (5600MT/s)
• Tested Timings: 36-36-36-68

• Tested Frequency XMP Profile 2: PC5-41600 (5200MT/s)
• Tested Timings: 36-36-36-68
etc etc.

The G.Skill lists:

Tested Speed (XMP/EXPO)

5200 MT/s

Tested Latency (XMP/EXPO)

36-36-36-83

SPD Speed (Default)

4800 MT/s

Anyway, I think I am going to go back on what I said and try the Crucial Overclocking Pro DDR5-6000, which is apparently "overclocked in name only" meaning (if I understand correctly) it's really rated for the advertised speed and not technically "overclocked", but you have to use EXPO to access anything over 5200 (this is a motherboard/chipset limitation).

[misterj]

phxrider, I suggest you ask a few memory vendors. Since they profit from their work, they should do the research not other users. John.