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
/s
8c GNC with 20% IPC over SNC/WLC puts you at around 9.6 core equivalent SNC/WLC (and in turn around that for zen 3), and just off the top of my head I'd say the little cores should have around 50-100% better performance per area compared to the big cores, so that'd be around 3.6-4.8 zen 3 core equivalent, which puts you just shy of a 5950x (assuming that is clocking the same as a 5800x).It'll just be back to price competition.
I expected them to perform like the Atom cores they are, i.e. not so great and no at what looks to be very close to a full fat Core i core.
I presume you clicked on the link and looked at the graphs? According to that, Intel is making AMD look bad in most benchmarks and the 11x00 series look like a joke.
Somehow it doesn't quite add up with what I expected at least, although it also seems like not everything is behaving as expected, especially X265 encoding and the "digital content" test in PCMark, where the new CPUs are really falling behind.
Again, I would take all those graphs with a both an unhealthy dose of sodium chloride and ammonium chloride.
The graphs on that link are definitely questionable, but I don't think you should be surprised to see the top 8+8 parts getting within touching distance of a 5950x (that's not to say they won't draw more power).
Also, the lowest cost per chiplet of zen 3 at current is the 5900X, cheaper per chiplet than even the 5600X. Not to mention supply of the Cezanne parts is plentiful while those have over 2x the die area of the single CCD parts (worse yields on top of 2x the raw silicon cost), yet costs less. Cezanne may not be selling gangbusters but I don't think there is any reason to believe AMD is at all limited by how much N7 they can get from TSMC or the prices it's being moved at...
I honestly think the only times ADL will beat the current AMD cpus is when its using Sh** Tons more power.