DDR5 memory is on its way, twice as fast as DDR4
1–10 of 74 posts
Re: DDR5 memory is on its way, twice as fast as DDR4
#2Most laptops shipped this year still has DDR3/LPDDR3 RAM
Re: DDR5 memory is on its way, twice as fast as DDR4
#3Most laptops shipped this year still has DDR3/LPDDR3 RAM
Because LPDDR4 wasn't available in sufficient quantities or not supported by the platform SkyLake only supported LPDDR3 and the current KabyLake SKUs also do not support LPDDR4.
Re: DDR5 memory is on its way, twice as fast as DDR4
#4Is the image of an DDR5 DIMM? because from the look of it it has some serious power management and storage components looks more like an NVRAM DIMM to me.
Edit: the image name has 8GB NVDIMM in it, so yeah this isn't DDR5.
Re: DDR5 memory is on its way, twice as fast as DDR4
#5Would the equivalent amount of DDR5 actually feel any different to DDR4 to the end user? It seems like hardware is getting better but basic software (web browser etc) is getting more complicated/bloated at the same rate, so things don't actually feel 10x faster than they did a few years ago.
Re: DDR5 memory is on its way, twice as fast as DDR4
#6So, it's been a while since I tinkered with hardware, but I'm making the blind assumption that although the bus speed is twice as fast as DDR4, there is also twice the read latency, as has always been the case with DDR memory, meaning the net read latency improvement is basically nil.
Of course we expect every generation of Double Data Rate memory to double the data rate. But it's always been a bit misleading to say "twice as fast".
Re: DDR5 memory is on its way, twice as fast as DDR4
#7Most laptops shipped this year still has DDR3/LPDDR3 RAM
Blame Intel.
Re: DDR5 memory is on its way, twice as fast as DDR4
#8Would the equivalent amount of DDR5 actually feel any different to DDR4 to the end user? It seems like hardware is getting better but basic software (web browser etc) is getting more complicated/bloated at the same rate, so things don't actually feel 10x faster than they did a few years ago.
Really? Go back and install Windows 7, then Windows XP, then Windows 98. Tell me the boot times and how long until a browser opens. :D
I think our expectations are just getting higher.
Re: DDR5 memory is on its way, twice as fast as DDR4
#9So, it's been a while since I tinkered with hardware, but I'm making the blind assumption that although the bus speed is twice as fast as DDR4, there is also twice the read latency, as has always been the case with DDR memory, meaning the net read latency improvement is basically nil. Of course we expect every generation of Double Data Rate memory to double the data rate. But it's always been a bit misleading to say…
Yes, I always considered that inflated bus speeds a scam.
It is like having a subway line driving trains every 2 minutes, but only 1 train in 15 taking passengers, rest going completely empty.
If you look at CAS latencies [1] then it's clear that memory speeds stagnated a long time ago:
Re: DDR5 memory is on its way, twice as fast as DDR4
#10[deleted]