that said DDR 4/5 support is a lot more transistor heavy than just DDR3. So in some ways 12700K needs less transistors to do the same.
#Making a cpu transistor series#
I7 -940 was higher end than 12700K is today because the 900 series had 3 channels of memory where 12700K is dual channel. what would nehalem look like on a modern node? This is hard to predict but Intel Gracemont cores are slightly more stripped down in instructions than big cores and not focused on clock speed.īest performance at equivalent thermals? Look at modern CPUs running real workloads to see what they use as different applications can have wildly different impacts. SRAM is denser than logic though logic has been scaling down better than SRAM lately - thanks Paul2).Īre you looking for equivalent performance - i.e. Wikichip has a lot of good info on transistors per mm2, but of course type of transistor matters (I e. Where is Intel spending those extra billions of transistors?Ĭlick to expand.There are way better experts to chime in here than me (I'm no expert ), but there are several ways you could try to determine an "equivalent" chip today.Īre you looking for similar die size ? Then compare Intel 45nm density to "Intel 7" or TSMC n7 and calculate however many transistors they would provide vs the same size as nehalem (on Intel 45nm). In any case that still leaves quite a large portion unaccounted for. Tack on an extra 2 billion for all the new stuff and you get 6.7 billion. The integrated GPU on the new chip probably adds another billion+ transistors too.Ī naive multiplication of 731 million by 6.5 yields ~4.7 billion transistors. Likewise with more I/O and hardware features such as h.265 encoder/decoders, IME, etc. I don’t have the latest chip on hand to benchmark but I tend to believe Geekbench figures with some margin of error, particularly as Geekbench 5 multi core tests use nearly ideal multi-core workloads.Ĭache size is 25 MB for the new chip vs 8 MB for the old chip, so more SRAM explains some of the difference. Released winter 2022.Īpproximately the same TDP for both (and higher ‘boost’ TDP for the new chip).įor 12x to 13x the number of transistors, and after 13 years of architectural improvements, Intel’s latest and greatest i7 is only 6.5x faster than their first i7.
Over 9 billion transistors, or so I heard correct me if otherwise. Intel i7-940 had 731 million transistors. I couldn’t believe how few transistors those chips had compared to modern designs! I was reminiscing about the bright and early days of multi core computing, particularly about Intel’s first ’Nehalem’ chips back in the fall of 2008.
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