Monday, September 13th 2021
First Tentative Alder Lake DDR5 Performance Figures Leak
The first indication of what to expect in terms of early DDR5 memory performance on Intel's Alder Lake platform has leaked, courtesy of a Chinese forum and Twitter. It's not the first time we've seen DDR5 performance figures, but this time the CPU is clocked at much higher speeds compared to the figures leaked by Longsys back in March.
Although the memory is still running at 6400 MHz, performance is up significantly with read speeds of over 90 GB/s. As we're most likely still looking at an ES sample and an early UEFI build, there should be room for improvement here. The leaked performance numbers appear to be from a Dell system of unknown model.
The not so great news is that the memory latency is still very high at 92.5 ns, although the 40-40-40-85 timings of the DDR5 modules used most likely has something to do with this. The CPU used for the test is said to be a Core i5 12600K and as an extra bonus, single core CPU-Z numbers of it were also posted, where it scores 785.6 points.
At this point in time, DDR5 still doesn't look very exciting, but as always when we transition to new memory technologies, there is usually an overlap where the fastest memory of the older generation always tends to outperform the first couple of JEDEC rated speeds of the new generation of memory. Once the memory module manufacturers get to play around a bit with DDR5, we expect to see much better performing modules in the market.
Source:
@harukaze5719
Although the memory is still running at 6400 MHz, performance is up significantly with read speeds of over 90 GB/s. As we're most likely still looking at an ES sample and an early UEFI build, there should be room for improvement here. The leaked performance numbers appear to be from a Dell system of unknown model.
At this point in time, DDR5 still doesn't look very exciting, but as always when we transition to new memory technologies, there is usually an overlap where the fastest memory of the older generation always tends to outperform the first couple of JEDEC rated speeds of the new generation of memory. Once the memory module manufacturers get to play around a bit with DDR5, we expect to see much better performing modules in the market.
57 Comments on First Tentative Alder Lake DDR5 Performance Figures Leak
Breaking the 100GB/s barrier on dual channel machines is goin to be a breeze
Right now it acts like they are the same, adds them up and just calls it 10 cores, but that is not the whole story.
Doesn't seem like much of a hit
Just compare Intel and AMD now
Intel upper 30s
AMD upper 50s
Can't really compare with AMD, as that's a potato to tomato comparison.
At 6400 mhz latency is going to be high c40 lol
After all the JEDEC spec for 3200MHz DDR4 is CL 20, but you can get CL 14 modules.
I guess it all comes down to a combination of production node, engineering expertise and luck.
Not saying we're seeing anything unexpected here for that matter, it's just a bigger jump that what we're used to.
For someone heavily into emulators, where single core IPC is king, its a very tempting proposition.
At 6400 even c32 would be mediocre at best.
Imagine DDR5 12600 CL40.....
I got seven stars like @TheLostSwede as well. So why can't I post shit?
Clock speeds aren't going to increase by much any time soon so the only way to get more performance is for IPC increases.
Nothing to do with stars, just helping out a bit. Also, I guess you don't have a decade plus worth of work history as a tech journalist?
Incidentally all 3 of the platforms you listted are multicore designs, and single core performance is only going to help you so much there.