WEBVTT 00:00:00.000 --> 00:00:06.080 The Ryzen 7 5800X3D is supposedly one of the best gaming processors on the market, 00:00:06.080 --> 00:00:11.280 but is that 3D on the end just a marketing gimmick to remind you of the superior way of 00:00:11.280 --> 00:00:16.960 watching movies? Or is there actual truth to it? That was a joke, 3D movies suck. 00:00:16.960 --> 00:00:24.560 But this 3D does not. The 3D actually refers to a feature that AMD calls 3DVcash, with V standing 00:00:24.560 --> 00:00:31.040 for vertical, and 3D implying that the cash actually is stacked on the CPU die to make it, you know, 00:00:31.600 --> 00:00:38.320 three-dimensional. So it's not false advertising, even if technically you could label every processor 00:00:38.320 --> 00:00:42.560 3D since our universe does in fact have three dimensions, but let's not get pedantic. 00:00:42.560 --> 00:00:50.480 Okay, so 3DVcash is CPUcash stacked vertically. But what is CPUcash? Well, it's basically just 00:00:50.480 --> 00:00:56.080 a small amount of very fast memory, like way faster than your system RAM, that sits on the 00:00:56.080 --> 00:01:02.080 CPU itself. Modern CPUs move information that is likely to be needed soon into the cash, 00:01:02.080 --> 00:01:06.000 so by the time they actually need that information, it's sitting right there for them to go ahead 00:01:06.000 --> 00:01:11.280 and act upon instead of having to wait for it to arrive from system RAM. So it's not hard to figure 00:01:11.280 --> 00:01:17.200 out that having more cash equals better, but slapping more onto a chip is actually fairly 00:01:17.200 --> 00:01:22.400 difficult. As transistor sizes have gotten smaller, manufacturing has gotten more difficult 00:01:22.400 --> 00:01:27.920 and more expensive. It's actually not uncommon for cash to use an older process node than the 00:01:27.920 --> 00:01:33.680 CPU cores do. So instead of trying to shrink the cash transistors down to cram more of them onto the 00:01:33.680 --> 00:01:41.280 CPU die, AMD decided to just build up instead and stack several layers of cash on top of each other, 00:01:41.280 --> 00:01:47.840 hence the name 3DVcash. But how much does having a cash sandwich in your PC actually make a difference 00:01:47.840 --> 00:01:55.360 in the programs you use the most? AMD markets the 5800X3D, the only consumer chip featuring 3DVcash 00:01:55.360 --> 00:02:00.560 at the time we wrote this video, as a gaming powerhouse. And it does turn out that having 00:02:00.560 --> 00:02:06.160 additional CPUcash makes a significant difference in gaming performance. Having more cash space 00:02:06.160 --> 00:02:10.880 means that the graphics card doesn't have to wait around as long for data from the CPU. 00:02:10.880 --> 00:02:16.400 Without that additional cash, your CPU needs to go back and grab data from your RAM more often, 00:02:16.400 --> 00:02:21.680 which takes time and leaves your CPU frustrated and exhausted, wondering why its creators didn't 00:02:21.680 --> 00:02:26.480 give it more cash when they dumped it into this cruel world. Indeed, benchmarks have consistently 00:02:26.480 --> 00:02:31.760 shown performance benefits across the board compared to both AMD and Intel chips that don't 00:02:31.760 --> 00:02:36.880 utilize vertical cash. And it's not surprising considering just how much more you can add 00:02:36.880 --> 00:02:42.800 by building vertically instead of horizontally. While the original 5800X contained 32 megabytes 00:02:42.800 --> 00:02:50.960 of level 3 cash, the 5800X3D increases that number to a whopping 96 megabytes. Wowie, zowie. 00:02:50.960 --> 00:02:55.200 Of course, this kind of cash design comes with its own costs. And we're not talking about the 00:02:55.200 --> 00:03:01.440 premium you pay for the CPU either. Vertical cash does require extra power and it generates more 00:03:01.440 --> 00:03:06.080 heat. And although AMD has done a pretty good job mitigating these issues, partly by packing 00:03:06.080 --> 00:03:13.200 the cash layers as close together as possible, the 5800X3D does not officially support multiplier 00:03:13.200 --> 00:03:19.040 overclocking as the cash and the CPU cores actually share voltage. So you can't change one 00:03:19.040 --> 00:03:23.760 without affecting the other. This also means boost clocks are lower than chips with more 00:03:23.760 --> 00:03:28.640 traditional cash. So while gaming performance is often better depending on exactly which game it 00:03:28.640 --> 00:03:33.760 is you're playing, other chips with more cores and higher clock speeds are still superior for 00:03:33.760 --> 00:03:40.240 other tasks. But if you do mostly use your PC for gaming, there's exciting news in that more 00:03:40.240 --> 00:03:46.800 chips using 3D Vcash are on their way as additions to the Ryzen 7000 series. And over in serverland, 00:03:46.800 --> 00:03:51.680 there are AMD Epic chips featuring the technology since server CPUs have to move 00:03:51.680 --> 00:03:57.920 so much data that a bigger cash can be beneficial. However, it's yet to be seen whether Intel answers 00:03:57.920 --> 00:04:02.960 with a similar strategy. Right now, Team Blue seems to be sticking to consistently high boost 00:04:03.440 --> 00:04:07.360 clocks instead. But you have to admit, there's something elegant about stacking chips like 00:04:07.360 --> 00:04:12.080 a can of Pringles. Truly a snack for the elite. They're not sponsoring us, why am I? And even 00:04:12.080 --> 00:04:16.400 though you're not sponsoring us, you kind of are by watching this video. So thanks for watching, 00:04:16.400 --> 00:04:19.680 like the video if you liked it, dislike it if you disliked it, check out our other videos, 00:04:19.680 --> 00:04:25.200 comment below with video suggestions, and don't forget to subscribe and follow. All of these things 00:04:25.840 --> 00:04:27.360 make us love you more.