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Nothing will beat a workload requiring 16GB of RAM, than a system with 16GB+ of RAM. You don't even need to benchmark to know that much.
by eloff 9y ago
Nothing will beat a workload requiring 16GB of RAM, than a system with 16GB+ of RAM. You don't even need to benchmark to know that much.
- walrus01 9y agofor comparison, write speed to RAM on DDR4-3200 is somewhere between 50000 to 60000MB/second on a fairly normal skylake workstation platform.
- dimensi0nal 9y agoPCIe latency is probably the bigger issue.
- dogma1138 9y agoThis. Which is why Intel is working on Optane DIMMs. Traversing the root complex can take upto 100 cpu cycles each way.
- Makepio 9y agoyep but Optane DIMM /NVDIMM is not for client product. It is on data center product list. Persistent Memory isn't just a concept on the textbook. It be realized now.
- dogma1138 9y agoSo was Optane at first and so were SSDs in general. DDR4 already has an optional spec for NVDIMMs, DDR5 will make it mandatory.
- x86awesome 9y agoPretty exciting news. Dudes can't wait to buy NVDIMM and plug them into their desktops.
- yyyr 9y agoVery exciting news. People cant wait to buy NVDIMMs and then plug them into their desktops.
- Makepio 9y agoPlease forget Optane, just think about intel persistent memory. If you really care about performance /latency.
- lorenzhs 9y agoNope that’s more like cache write speed. Single-threaded sequential access to RAM is typically more like 10-15GB/s for current server CPUs: https://panthema.net/2013/pmbw/results.html https://panthema.net/2013/pmbw/results.html - it’s true that workstation machines tend to have somewhat higher sequential throughout compared to the server-heavy list at that URL, but it’s more like 20GB/s, not 50-60.
- Retric 9y agoRAM is not nessisarily single threaded. Unganged Dual / quad channel memory is effectively multithreaded. So really his numbers are real world even with CPU bottlenecks. https://www.techspot.com/news/62129-ddr3-vs-ddr4-raw-bandwidth-numbers.html https://www.techspot.com/news/62129-ddr3-vs-ddr4-raw-bandwid... PS: DDR4-3200W in quad channel mode is crazy fast and should break 100GB/s though sill a long way from a 1080Ti 484 GB/s.
- DSingularity 9y agoOr a system with faster RAM or faster swap device :-D