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Teenyman45
2[H]4U
- Joined
- Nov 29, 2010
- Messages
- 3,243
Making the jump to AM5 means DDR5 and I've narrowed down my RAM to four likely possibilities one of which is, as the thread title shows to buy 6400 and downclock to 6000:
1) The cheap and easy route of buying a 32GB 6000 EXPO kit like this 30-38-38 kit - https://www.newegg.com/g-skill-32gb/p/N82E16820374422?Item=N82E16820374422 - for ~$220 after tax and call it a day;
2) The 64GB 6000 EXPO easy route because "moar RAM bettahrrr" with a 32-38-38 kit - https://www.newegg.com/g-skill-64gb/p/N82E16820374442?Item=N82E16820374442 - for ~$435 after tax;
3) A 64GB 6000 with tighter CAS 30-40-40 EXPO kit - https://www.newegg.com/g-skill-64gb/p/N82E16820374442?Item=N82E16820374442 - for ~$500 after tax; OR
4) An XMP 64GB 6400 32-39-39 kit - https://www.newegg.com/g-skill-64gb/p/N82E16820374432?quicklink=true - which is actually cheaper than option 3 at ~$480 after tax and should, in theory, downclock to equivalent settings as the faster 64GB EXPO kit while also allowing real headroom on either speed or timings should I do some sort of comparative "overclock" to the EXPO kits.
Worth the effort for option 4? Should I not even bother with a 64GB kit at all when my RAM usage normally tops out at 20-22GB?
UPDATE:
I bought the 64GB 6,400 low latency kit. Went the full [H]. Very purposefully did not get a pair of 32GB kits as, per the QVL listings and some early reviews on the matter, the stress on the memory controller places a much greater speed penalty on the system than buying a 64GB two stick kit.
After Amazon was 10 days late getting me a CPU, then being away for a week, and then sick for nearly two weeks after getting back. I finally had some time to put together a test rig. The MSI X670E ACE defaulted to a 4,800 JDEC spec very quickly. After going through with a BIOS update to the latest version, I tried plugging in the main timings for the 6,000 30-40-40-96 EXPO kit and this memory took it without issue, at least being stable enough to install Win 10, run Ryzen Master's curve optimizer, and several rounds of Cinebench R23. I still need to do proper memory testing and then start dialing in better timings.
Training time was around 30 seconds for the very first boot sequence, and normally the rig is booting in well under 30 seconds after resets or powering down. One oddity is that while leaving every other setting on Auto in the BIOS other than specifically selecting the above referenced memory settings, my motherboard decided to run the CPU with a 1.35v VCore.
1) The cheap and easy route of buying a 32GB 6000 EXPO kit like this 30-38-38 kit - https://www.newegg.com/g-skill-32gb/p/N82E16820374422?Item=N82E16820374422 - for ~$220 after tax and call it a day;
2) The 64GB 6000 EXPO easy route because "moar RAM bettahrrr" with a 32-38-38 kit - https://www.newegg.com/g-skill-64gb/p/N82E16820374442?Item=N82E16820374442 - for ~$435 after tax;
3) A 64GB 6000 with tighter CAS 30-40-40 EXPO kit - https://www.newegg.com/g-skill-64gb/p/N82E16820374442?Item=N82E16820374442 - for ~$500 after tax; OR
4) An XMP 64GB 6400 32-39-39 kit - https://www.newegg.com/g-skill-64gb/p/N82E16820374432?quicklink=true - which is actually cheaper than option 3 at ~$480 after tax and should, in theory, downclock to equivalent settings as the faster 64GB EXPO kit while also allowing real headroom on either speed or timings should I do some sort of comparative "overclock" to the EXPO kits.
Worth the effort for option 4? Should I not even bother with a 64GB kit at all when my RAM usage normally tops out at 20-22GB?
UPDATE:
I bought the 64GB 6,400 low latency kit. Went the full [H]. Very purposefully did not get a pair of 32GB kits as, per the QVL listings and some early reviews on the matter, the stress on the memory controller places a much greater speed penalty on the system than buying a 64GB two stick kit.
After Amazon was 10 days late getting me a CPU, then being away for a week, and then sick for nearly two weeks after getting back. I finally had some time to put together a test rig. The MSI X670E ACE defaulted to a 4,800 JDEC spec very quickly. After going through with a BIOS update to the latest version, I tried plugging in the main timings for the 6,000 30-40-40-96 EXPO kit and this memory took it without issue, at least being stable enough to install Win 10, run Ryzen Master's curve optimizer, and several rounds of Cinebench R23. I still need to do proper memory testing and then start dialing in better timings.
Training time was around 30 seconds for the very first boot sequence, and normally the rig is booting in well under 30 seconds after resets or powering down. One oddity is that while leaving every other setting on Auto in the BIOS other than specifically selecting the above referenced memory settings, my motherboard decided to run the CPU with a 1.35v VCore.
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