Gadgetory

remember kids do not try this at home and go to a friend's house down clocking Ram is as simple as hopping into your bios disabling XMP profile is enabled and manually setting Ram frequency under the Advanced Settings tab the lowest we can go is 800 megahertz simple as that save settings are not a PC to reboot we can verify via CPU Z or another program that our Ram is in fact maxing out at 800 megahertz this is double data rate we're dealing with hence 400 you're seeing here the benchmarks you're about to see will contain a proper run of each scenario stocks 2800 megahertz for these dims out of the box displayed in white and under clocked to 800 megahertz displayed in orange the CPU I'll be using is an i7 6700 K overclocked to 4.4 gigahertz and the graphics code I'll be using is an EVGA gtx 1070 a CX 3.0 running at stock let's start off first with a few cpu synthetics along with an encoding benchmark via Adobe Premiere Pro first with the Cinebench we see a roughly 10% performance decrease but this is just the start don't worry folks it gets much worse than this Geekbench 4 takes things a step further this indeed is a more comprehensive benchmark and we're beginning to see the effects of slow memory take hold but in the real world how much can we expect memory frequency to play a role well let these disparities quite a large one our Adobe Premiere Pro tests seemed ok at first scrubbing detail rendering clipping even forcing GPU accelerated effects everything worked out well and without a hitch the things became very real when I began encoding exporting a 10-minute 1080p 60fps file in the YouTube h.264 preset with 800 megahertz memory resulted in abysmal render times nearly double what we should expect from a healthy i7 PC I find it interesting however that apart from serious workloads and CPU stress tests everyday use of the PC was rather fluid games loaded normally I could surf the web and open multiple tabs without issues it was all bit peculiar when seen in the context of what we seriously and purposely effed up but then the gaming benchmarks began and Wow was GTA 5 a disappointment I ran these tests in 1080p in order to leverage the CPU just a bit more it's also a very popular gaming resolution without crippling the system which was sporting an i7 6700 K 4.4 gigahertz remember in a single gtx 1070 we pulled 137 FPS on average 74 on the minimum side but the 800 megahertz ddr4 run cut these frame rates in half actually more than half 57 on average in a mere 28 FPS minimum something else I'd like to show here frame times for GTA 5 we're looking for relatively flat consistent frame draw times in this case anywhere from 5 to 15 milliseconds but we see variability in spiking all over the place with the 800 megahertz run our 28 megahertz line is also much longer because a significantly higher number of frames rendered during the exact same time period also something when I look for in a graph like this now on to battlefield 1 a very well optimized game even handle the 1.2 gigahertz CPU with ease but now with an average frame rate of 51 and a minimum of 36 we found an Achilles heel and I will say however that in game performance consisted a very minimal stuttering and a tight FPS range always a sign of great optimization it was that way without the RAM bottleneck by the way witcher 3 is our graphics intensive game of choice and it shows here while the under clocked ram did impact performance it didn't do so to the degree I expected our overall average dropped by 14 and our minimum by 16 fps still not bad for a GPU bound title but let's end on a sour note how fitting city skylines an intensely CPU dependent game suffered massively under the memory bottleneck we went from 73 to 26 FPS on average and down to a terrifying 12 frames per second during its worst segments notably when zoomed in I mean look at this performance I wish you can call it that really our graphics card is on cruise control while our CPU is being forced to slow down on behalf of very slow memory transfer rates bear in mind I did not touch cats latency and timings how do I raise those we've been an even larger heap of trouble imagine a large and powerful v8 engine capable of say 500 brake horsepower but with a very terrible fuel pump installed not enough gas makes it to each cylinder compression ratios dip and the lean mixture doesn't live up to the 500 horsepower the engines rated for in a similar fashion our CPUs clocks very high 4.4 gigahertz which I believe most anyone can attain with some even cooler on a 6700 K by the way so our CP has a lot of potential but memories frequency reduced the data transfer rate the CPU is capable of a certain processing potential but information isn't being fed to the CPU quick enough this is why typically only unlocked chipsets include support for memory frequencies higher than stop that's 21 33 megahertz in the case of ddr4 any faster and Knox Q's likely wouldn't keep up with short-term information being fed from memory down CPU pipelines and see you thought this video would be completely pointless there's always a chance to either learn or review something nevertheless I do hope you enjoyed this video or at least had an ounce or two of your curiosity satisfied if you liked this video be sure to give it a thumbs up give it a thumbs down if you look we top Zerby hate everything but light be sure to click Subscribe but we have it only stay tuned for no I didn't really think I'd get this far on the first first take I suppose stay tuned for a proper I TX PC build this time around I ordered an i-5 7600 cake hey Vee Lake processor I'll be throwing that into the Franklin OH - OH - once again but this time with a Z 270 motherboard from has rock also an ITX motherboard and either an Rx 480 or gtx 1070 not sure which one I'm gonna go with I might leave that question up to you to be answered follow me on Twitter to participate in that poll which I expect will be open for several days this is Salazar studio thanks for learning with you