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> but they aren't much faster than the old ones Each year the new CPU it's about 20% faster then the old one. After 4 years, it adds up. A top Intel CPU will
by 21 8y ago
> but they aren't much faster than the old ones
Each year the new CPU it's about 20% faster then the old one. After 4 years, it adds up. A top Intel CPU will now deliver twice the same single-thread performance than a 5 year old one of same price.
- gambiting 8y agoThat's demonstrably not true. A 4 year old 4790K stands literally right next to 8-th gen CPUs in terms of both single and multiple core performance. A rather large leap happened when the architecture moved to DDR4, but CPU "performance" has hugely stagnated. I don't know where you're getting the 20% from but its definitely not the case in the last 5 years.
- ed312 8y agoAs a 4790K owner, I couldn't agree more. I just got around to doing a mild overclock and honestly the chip isn't holding me back even gaming 4k@60fps.
- AmVess 8y agoSame here. I'm going to wait for Zen2 before moving on. 8c/16t at 4.5+ GHz will be a compelling upgrade.
- elabajaba 8y ago4k@60 is GPU bottlenecked, not CPU bottlenecked. It's pushing for 144fps where you'll start to be cpu bottlenecked in eg. Battlefield multiplayer or Assassins Creed. (also having a 4core/8thread cpu helps quite a bit vs 4core/4thread now that games have started pushing CPU limits again, especially with the 1% and 0.1% lows that cause stutter).
- gambiting 8y agoI've literally just upgraded from 4670K(4c/4t) to the 4790K(4c/8t) because Forza Horizon 4 was stuttering every now and then, the CPU was basically at 100% load all the time. Switching to a CPU within the same architecture but higher thread support has fixed all issues completely .
- LeifCarrotson 8y ago> the new CPU it's about 20% faster then the old one Source? I suspect you're being shown a few choice benchmarks which demonstrate some improvement, perhaps where something became newly vectorizable...but realistic and consistent benchmarking doesn't show nearly that level of improvement. One area in which you may benefit is in peripherals - an M.2 SSD and DDR4 RAM will help, and those aren't available on 5 year old motherboards. Also, power savings may be found with newer systems if you're in a laptop form factor where that matters. But let's not pretend that single-threaded performance has doubled in 5 years. Here's one article that goes back quite a ways....and 2012 SPECint comes in at about 60,000 while 2017 comes in at 83,600. https://www.karlrupp.net/2018/02/42-years-of-microprocessor-trend-data/ https://www.karlrupp.net/2018/02/42-years-of-microprocessor-...
- archi42 8y agoI doubt that number, too. Our CPU-bound workload runs "only" 20% faster on an i7-6xxx than it did on an i7-920 (calculated for equal clocks; due to the higher clock it was actually about 60% faster, which caused me to do the math because I feared a regression). That's far away from 20% per generation. But in one thing you err: After a small custom BIOS mod, my home PC now boots from nvme - with a Z68 board (Sandy Bridge era), the module sitting in a PCIe adapter card. Was just a matter of adding some UEFI module.
- tracker1 8y agoYeah, my mb had an nvme m.2 slot, but it was pciex2, so the x4 card (most seem to be) didn't work. Why I went with an adapter. The main thing lately is when I'm running a lot of containers/vms for workloads it tends to box down a little. Outside of that and 4k 3d, don't notice it ever. But the new stuff is only just starting to get better enough that I may upgrade next year sometime.
- muro 8y agoM2 SSD is available on Haswell (Xeons at least) via a PCIe Board. Thats more than 4 years old.
- tracker1 8y ago