Same boat on one machine with a 3090 being held back by the Zen 2 cores particularly the minimum FPS. I will probably move the 5800x3d rig into the computer room with VR (Flight Simulator is awesome in VR being limited severely by the 3960x). Some rumor that AMD may support DDR4 with Zen 4, lol, hopefully that will be with TRX40 as well.This review is one of the reasons I am pissed at AMD for shafting us TRX40 users and refusing to give us a Zen3 version.
I hate compromises. I want a build that gives me everything a HEDT system offers (primarily ECC, high PCIe lane counts and IOMMU, but high core counts don't hurt either) without sacrificing top of the line game performance.
I hate compromises. They drive me nuts.
That was one of the things I noticed when I upgraded from my 3700x to it. Frames are just so smooth now. There are some still occasional jitters but I can usually attribute them to something loading in. Otherwise, it's really impressive. I recently was lucky enough to use EVGA step-up to get a 3090 Ti and between that and the C2 (G-Sync) everything is so happy with each other. I haven't tried the latest Flight Sim but I'm sure it'd look great.it is the lows even momentarily, those jerky to sutter periods that makes the 5800x3d really pop out over other CPUs.
it is the lows even momentarily, those jerky to sutter periods that makes the 5800x3d really pop out over other CPUs.
That was one of the things I noticed when I upgraded from my 3700x to it. Frames are just so smooth now. There are some still occasional jitters but I can usually attribute them to something loading in. Otherwise, it's really impressive. I recently was lucky enough to use EVGA step-up to get a 3090 Ti and between that and the C2 (G-Sync) everything is so happy with each other. I haven't tried the latest Flight Sim but I'm sure it'd look great.
I started to theorize about similar performance gains years ago when I got my 4930K. It was my first processor to go beyond 4C/8T but at the time most things were still not optimized for more threads and even though, at the time, I wasn't overclocking it and it was running at slower clock speeds (3.4 GHz boost to 4.2 GHz) I noticed significantly improved performance over the 2600K (OC'd to 4.2 GHz). Both systems had nearly identical ram and other specs back then. The 1st thing I started to attribute it to was the increased cache. I knew there were other factors like instruction sets and other CPU-specific items but that was something that really stood out. It was about a year later that someone gave me some great tips for OCing the 4930K to 4.3 GHz and that thing has been a champ ever since. It's still chugging away in the cave.That makes perfect sense. These are probably moments where another CPU would be pulling data from RAM, but because the cage on this thing is so large it can just retrieve the data there instead, much more quickly.
I started to theorize about similar performance gains years ago when I got my 4930K. It was my first processor to go beyond 4C/8T but at the time most things were still not optimized for more threads and even though, at the time, I wasn't overclocking it and it was running at slower clock speeds (3.4 GHz boost to 4.2 GHz) I noticed significantly improved performance over the 2600K (OC'd to 4.2 GHz). Both systems had nearly identical ram and other specs back then. The 1st thing I started to attribute it to was the increased cache. I knew there were other factors like instruction sets and other CPU-specific items but that was something that really stood out. It was about a year later that someone gave me some great tips for OCing the 4930K to 4.3 GHz and that thing has been a champ ever since. It's still chugging away in the cave.
| L1 | L2 | L3 | |
| Ryzen 7 5800X | 32KB inst + 32KB data per core = 512KB | 512KB per core = 4MB | 32MB |
| Ryzen 7 5800X3D | 32KB inst + 32KB data per core = 512KB | 512KB per core = 4MB | 96MB |
| my Threadripper 3960x | 32KB inst + 32KB data per core = 1.5MB | 512KB per core = 12MB | 128MB |
From "that other thread"I'm wondering if I see some of those benefits on the Threadripper
From "that other thread"
Another big benefit on the 5800 is that there is only 1 CCD - nothing has to jump across infinity fabric. If you lock your TR to just the cores on a single CCD you might get at that.
Yeah, but avoiding the problem all together is a heck of a lot better than any mitigation.That is true, but I vaguely remember this being worse in the Threadripper 1xxx and 2xxx models. There was something about the newer ones that mitigated (at least partially) the infinity fabric penalty.