ASUS Radeon RX 7600 STRIX OC review
Corsair RM1200X SHIFT 1200W PSU Review
Intel NUC 13 Pro (Arena Canyon) review
Endorfy Arx 700 Air chassis review
Beelink SER5 Pro (Ryzen 7 5800H) mini PC review
Crucial T700 PCIe 5.0 NVMe SSD Review - 12GB/s
Sapphire Radeon RX 7600 PULSE review
Gainward GeForce RTX 4060 Ti GHOST review
Radeon RX 7600 review
ASUS GeForce RTX 4060 Ti TUF Gaming review
DDR5-6000 Memory is the Sweet Spot For AMD Ryzen 7000 Zen 4 CPUs (update)
AMD's Ryzen 7000 Zen 4 CPUs appear to have DDR5-6000 as their sweet spot, allowing for a 1:1 IFC ratio. A 1:1 ratio indicates that the memory operates at the same frequency as the memory controller on the CPU, which should provide the best-case situation.
Intel has divided the memory ranks with Alder into two categories: a 2:1 mode known as Gear 2 that is the default for DDR5, and a 4:1 variant known as Gear 4. A 1:1 ratio has the advantage of allowing for reduced latencies and a balanced speed. In contrast, a greater ratio allows for better overclocking and quicker data transfer rates but also results in worse latencies.
- AMD Ryzen 3000 "Zen 2" Sweet Spot - DDR4-3800
- AMD Ryzen 5000 "Zen 3" Sweet Spot - DDR4-4000
- AMD Ryzen 7000 "Zen 4" Sweet Spot - DDR5-6000
DDR5-6000 for AMD Ryzen 7000 "Zen 4" CPUs already sounds amazing for AM5, with a default to DDR5-5600. Higher frequency DIMMs are supported, however, if you exceed the DDR5-6000 limit, you will be forced to use a 1:2 IFC. DDR5-6400 operating at 1:2 is said to offer poor results and is not advised if you want better gaming performance.
Update:
AMD announced DDR5-6000 as the "sweetspot" memory overclock for their next Ryzen 7000 "Zen 4" processors in its Discord AMA. In AMD language, a sweet spot frequency is an inflection of performance, stability, cost, and ease. AMD's Robert Hallock, who led the Discord AMA, suggested that FClk be left undisturbed at "Auto" for the best results. Memory overclocking yields lesser results with dual-rank DIMMs, or two DIMMs per memory channel, as with both AMD and Intel currently. Some of the AMD EXPO-certified DIMMs launched in recent days use memory clocks higher than DDR5-6000.
Team Group Adds T-Force Delta RGB in DDR5-6600 and DDR5-6000 CL30 to lineup - 05/25/2022 07:55 AM
TEAMGROUP is proud to announce the release of two new specification upgrades of T-FORCE DELTA RGB DDR5 Gaming Memory. The overclocking RAM comes in a high-speed variant clocking in at 6,600 MHz and a ...
DDR5-6000 memory with EPIC-X RGB heatsink from PNY - 05/09/2022 06:30 PM
PNY Technologies introduced the DDR5-6000 memory XLR8 DDR5 6000MHz MAKO RGB with an aluminum heat sink....
G.Skill Launches 2x32GB DDR5-6000 CL30 64GB Memory Kit - 03/30/2022 09:10 AM
SKILL is delighted to announce the launch of a high-capacity, ultra-low-latency DDR5-6000 CL30 64 GB (32 GB x2) overclocked performance memory kit under the Trident Z5 family, designed for the latest ...
schmidtbag
Senior Member
Posts: 7441
Joined: 2012-11-10
Senior Member
Posts: 7441
Joined: 2012-11-10
#6040905 Posted on: 08/10/2022 03:06 PM
While this is very good and completely satisfactory for my needs, I would hope that future APUs can get the 1:1 on faster memory, because they're gonna need it.
We really need to stop measuring by CL and start measuring in total latency. Every version of DDR gets significantly worse CAS latency but the total latency tends to improve. DDR5 at 6000MHz and CL36 is better than most options for DDR4, especially if you compare performance : price.
While this is very good and completely satisfactory for my needs, I would hope that future APUs can get the 1:1 on faster memory, because they're gonna need it.
6000 CL36 is not good though. That has worse latency than previous DDR4 kits.
We really need to stop measuring by CL and start measuring in total latency. Every version of DDR gets significantly worse CAS latency but the total latency tends to improve. DDR5 at 6000MHz and CL36 is better than most options for DDR4, especially if you compare performance : price.
Kool64
Senior Member
Posts: 1516
Joined: 2006-10-21
Senior Member
Posts: 1516
Joined: 2006-10-21
#6040907 Posted on: 08/10/2022 03:11 PM
A C30 kit is about $100 USD more than a C36 kit. So the question is would a lower latency slower kit be better or should you stick with the C36 if trying to save money?
A C30 kit is about $100 USD more than a C36 kit. So the question is would a lower latency slower kit be better or should you stick with the C36 if trying to save money?
user1
Senior Member
Posts: 2489
Joined: 2016-01-29
Senior Member
Posts: 2489
Joined: 2016-01-29
#6040911 Posted on: 08/10/2022 03:49 PM
the zen 3 apus can do <2200mhz
i was able to boot into windows at 2466mhz in 1:1mode with non-suicide voltage on a 5600g (the ram being the limiting factor). i think most of them can do 2400mhz stable with sufficient voltage.
zen3 could not even reach 2000mhz IF.
the zen 3 apus can do <2200mhz
i was able to boot into windows at 2466mhz in 1:1mode with non-suicide voltage on a 5600g (the ram being the limiting factor). i think most of them can do 2400mhz stable with sufficient voltage.
schmidtbag
Senior Member
Posts: 7441
Joined: 2012-11-10
Senior Member
Posts: 7441
Joined: 2012-11-10
#6040913 Posted on: 08/10/2022 03:54 PM
If you're not depending on an iGPU and are doing dual-channel, I figure spending the extra $100 won't be worth it in real-world workloads. I suspect Zen4 isn't going to be held back as much by memory performance as Zen2, especially if you get a 1:1 gear.
A C30 kit is about $100 USD more than a C36 kit. So the question is would a lower latency slower kit be better or should you stick with the C36 if trying to save money?
If you're not depending on an iGPU and are doing dual-channel, I figure spending the extra $100 won't be worth it in real-world workloads. I suspect Zen4 isn't going to be held back as much by memory performance as Zen2, especially if you get a 1:1 gear.
Click here to post a comment for this news story on the message forum.
Member
Posts: 33
Joined: 2015-03-16
6000 CL36 is not good though. That has worse latency than previous DDR4 kits.