Gadgetory

ddr4 memory it's fast its power efficient it's a requirement if you want to pick up a fancy new CPU that needs it and you can learn all about it here so with ddr4 available why would you want ddr3 anymore on top of all the other stuff that I just said ddr4 has four in it that's like one more than ddr3 the answer is cost at the time of making this video ddr4 is more expensive for a given capacity than ddr3 so for that reason many potential customers will want to see it justify its higher cost so welcome to our apples-to-apples comparison of ddr3 and ddr4 Coolermaster v-series semi modular power supplies feature 80 plus gold efficiency and their gold guarantee five-year warranty click now to learn more so let's introduce our test platform shall we there are no CPUs on the market that support both ddr3 and ddr4 at least consumer ones so we have to be pretty careful to reduce variables and make this comparison as fair as possible it starts with the processor so we chose two CPUs based on the scene Haswell microarchitecture from Intel the core i7 4790k and the core i7 5820k then we proceeded to disable two of the course on the 5820k and clock them both at straight 4.4 gigahertz with no turbo boost so neither of them would have any raw clock speed advantage one thing we couldn't do anything about is the difference in cache size but this is as close as we could get to a level playing field for the CPU next up is motherboards we've got two gigabyte gaming 5 motherboards the z97 X gaming 5 and the X 99 gaming 5 we were looking for feature equivalent boards to use for both chips and both of these have a very similar loadout with SATA Express 10 Gigabit M got to drive support amplified onboard audio welcome killer networking similar CPU power designs with gigabytes all digital implementation and of course a sexy matte black and red color scheme that I find myself carrying about probably far too much the x99 version does have some extras to go along with its higher price a more advanced sound processor 3 and 4 Way SLI support and some LED lighting accents including on the heatsink and the i/o shield to make it easier to plug things in in the dark but enough about that you guys want to know about the memory we're using right representing ddr3 at up to the highest J deck speed 21 33 megahertz with enhanced timings we've got a 16 gig dual channel kit of XP GV one memory we resplendent in an anodized red finish and representing ddr4 at up to the highest J deck ddr4 speed 2400 megahertz although higher speeds will be coming a 16 gig quad channel kit of a data's new ddr4 XP gz1 series with an updated aggressive looking heat spreader also featuring an anodized red finish so huge thanks to a data for providing us with these modules for testing even the brand new ddr4 modules operated flawlessly throughout the benchmarking process and for that matter so did the motherboards I'm really impressed especially with the x99 gaming 5 this one has made a lot of progress gigabytes drop in BIOS updates like that and the stability of it is much much improved over x99 at launch so yeah everything just kind of went smoothly for a change anyway speaking of the benchmarking process I guess that's what's next so I'm gonna show you three different scenarios here first is ddr3 dual channel next is the EDR for dual channel so we have a very direct apples to apples comparison between the two memory technologies at a variety of speeds and timings and finally to show a very best case scenario for modern ddr4 I threw in a set of results with the RAM overclocked to 3 gigahertz in quad-channel mode the configuration that most folks running ddr4 people processors will be running until Broadwell comes to the mainstream desktop in dual channel only sometime next year now synthetic benchmarks are where ddr4 should be able to really flex its muscles these I 264 benches are designed to show us the upper most limits of the theoretical performance of the memory subsystem of a PC in our apples-to-apples test ddr4 delivers better performance in Reed's than ddr3 but actually worse right and latency results making this a bit of a wash but in its full quad channel configuration our high speed ddr4 is untouchable here next up is real-world non-gaming results multi-threaded rendering and our 7-zip compression and decompression benchmarks are a good way to show off the performance of modern CPUs with lots of processing course and high-speed memory is needed to keep all of those cores fed so something to note here is that while the performance scaling with better memory might not look very impressive the LGA 2011 3 socket is likely to be with us for a few years and has CPUs available for it already with up to 18 course so while the extra bandwidth even in quad-channel isn't needed for this artificial quad core that we created here there are ways to kid out a board like this so that it's much more likely that that extra memory bandwidth would be used which leads to our final set of benchmarks games I only ended up running a couple of games the canned benchmark in Tomb Raider at these settings and my custom run at the end of BioShock Infinite at these settings because the results here don't leave much for me to interpret even going all the way down to ddr3 1333 megahertz so nearly the launch speed of ddr3 in dual-channel i couldn't create a situation where game performance was limited in any meaningful way by the memory subsystem on it as well based cpu with only four cores so in conclusion while it might be worthwhile from a platform point of view to invest in ddr4 for your six core or eight core processor since you don't really have a choice if you want the latest CPUs if you're a normal consumer who doesn't really need the extra course it looks like LGA 1150 with its ancient ddr3 memory still has a lot of life left in it and given how unconstrained our Haswell CPUs are even by very low speed ddr3 I think it's safe to say that the performance improvements we can expect to see from Intel's upcoming Broadwell desktop processors will be thanks to architectural improvements not the use of ddr4 guys like this video if you liked it dislike it if you disliked it leave a comment letting me know what you thought were you expecting ddr4 and an apples to apples comparison to run away with it or were you expecting exactly the results you saw today check out the link in the video description if you want to support us it says support us you click that link you can buy a cool t-shirt like this one you can give us a monthly contribution or you can change your amazon bookmark to one with our affiliate code so we get a small kickback whenever you buy toothbrushes or whatever it is you buy on Amazon thanks for watching again guys and as always don't forget to subscribe for more videos just like this one