AIDA64 Memory Bandwidth and Cache Performance

We are now going to utilize AIDA64’s Cache & Memory Benchmark to look at memory bandwidth as well as memory and L1, L2, and L3 cache latencies.

Memory Read

Intel Core i5-12600K Alder Lake DDR4 vs DDR5 Performance AIDA64 Memory Read

This is where DDR5 can show off its massive bandwidth advantage. In memory read performance DDR4 is at 56GB/s but DDR5 at 5200 is at 76GB/s, that’s a 35% improvement in memory bandwidth!

Memory Write

Intel Core i5-12600K Alder Lake DDR4 vs DDR5 Performance AIDA64 Memory Write

The same is true in memory write performance but to a slightly lesser degree. We move from 56GB/s of DDR4 to 73GB/s with DDR5, an increase of 30%.

Memory Copy

Intel Core i5-12600K Alder Lake DDR4 vs DDR5 Performance AIDA64 Memory Copy

Memory copy performance has also increased from 52GB/s to 71GB/s, an increase of 35%.

AIDA64 Cache & Memory Benchmark

We now want to show you the complete AIDA64 Cache & Memory Benchmark so you can also see the latencies between the RAM.

DDR4

Intel Core i5-12600K Alder Lake DDR4 vs DDR5 Performance DDR4 AIDA64 Cache and Memory Benchmark

With DDR4 the Latencyh is 76.1ns.

DDR5

Intel Core i5-12600K Alder Lake DDR4 vs DDR5 Performance DDR5 AIDA64 Cache and Memory Benchmark

We actually see the Memory Latency increase with DDR5 up to 82.1ns. That’s an 8% increase in Memory Latency. L2 and L3 Cache copy performance seem to be higher with DDR5, but otherwise, everything else is very similar.

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Brent Justice

Brent Justice has been reviewing computer components for 20+ years, educated in the art and method of the computer hardware review he brings experience, knowledge, and hands-on testing with a gamer oriented...

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5 Comments

  1. How is that MSI cooler doing? CPU cooling for alder lake is my main big question atm and MSI liquid coolers seem to be one of the few that are compatible that I can get over here.

    Especially worried after reading that article where they show bent CPU heatsinks with dodgy cooler mounts.

  2. [QUOTE=”Denpepe, post: 45055, member: 284″]
    How is that MSI cooler doing? CPU cooling for alder lake is my main big question atm and MSI liquid coolers seem to be one of the few that are compatible that I can get over here.

    Especially worried after reading that article where they show bent CPU heatsinks with dodgy cooler mounts.
    [/QUOTE]

    It’s the best cooler that I’ve had on the test bench (on the 10980XE though). I’m sure Brent has better feedback on Alder Lake specifically…

  3. I’ll have more experience in the near future, have it installed on a 12700K right now, and then 12900K, so far as far as the 12600K goes it went real well, and that CPU stayed cool very well with it, however, I have been running it on 100% fan speeds for testing purposes, so it’s loud. I will be getting to temp testing on the 12700K soon, and then 12900K ,and we’ll really see how it holds up. As for bent heat spreaders, haven’t noticed anything odd. I will say though that with the screws screwed into the backplate it’s a lot looser than I would have thought it would be, or I should say, compared to other coolers, but it’s not a problem once you screw down the block on top of the screws with the thumbscrews, it tightens up nicely, and you really can’t over tighten it, it has a natural stop. Make sure to check in next week to see how the temps on the 12700K did, then in a couple more weeks the 12900K.

  4. I will leave a link to the article I read, it’s kind of though to read guess it did not translate well but found it interesting. [URL]https://www.igorslab.de/en/bad-cooling-at-alder-lake-problems-at-socket-lga-1700-on-the-lane-among-all-remedies/[/URL]

    Does look like the risks are bigger with cheaper boards.

  5. [QUOTE=”Denpepe, post: 45073, member: 284″]
    Does look like the risks are bigger with cheaper boards.
    [/QUOTE]
    That’s par for the course for a number of reasons. That being said, I did notice that the back plate EK offers for it’s LGA 1200 / 2066 socket waterblocks is much thicker and beefier than what I’ve seen on pretty much every generation going way back to the pre-Sandy Bridge era.

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