I upgraded to an AMD Ryzen 7 5800X3D CPU from a Ryzen 5 5600X, and it made a big difference

I’m not going to get in the habit of reviewing desktop CPUs, but after my experience this weekend with the AMD Ryzen 7 5800X3D, I thought I’d put out a little article on my findings. Fact is, I’m just impressed with how much of a difference it made to upgrade my CPU.

First a little background. Back in late 2020 when the Ryzen 5000 series launched alongside Nvidia’s 3000 series GPUs, I was able to snag an AMD Ryzen 5900x and an Nvidia RTX 3090.

Unfortunately, my 5900x had some major issues where the system would randomly reboot. With short supply, an RMA was 8 weeks, so I settled for a 5600x at that time, which was all that was left in stock.

My plan was simple though. Live with the 5600x for a while and then upgrade to the 5900x when it goes on sale in a couple of years. This was really the only upgrade option too, since what I have is the last generation of AM4 socket CPUs. But then the Ryzen 7 5800x3D comes out.

I won’t go into too much detail, but the main draw to this CPU is it’s designed for gaming. And what AMD has done is pretty unique. They added what they call 3D V-cache which includes increasing the L3 cache to 96MB and apparently, this drastically increases the performance in some games.

And for me, it sure did. I was only planning on upgrading to the 5900x for the raw processing power from 12 cores. Frankly, I wouldn’t have expected much of a difference in gaming performance, as most games barely use 6 cores, let alone 8 or 12. So the difference should have been minimal. But this was different.

Take a look at the benchmarks I tested.

For reference, both scenarios were on the same BIOS, with all the same hardware, with the exception of the CPU. And the GPU used is an RTX 3090, so any bottlenecks from the GPU can easily be ruled out.

Here’s what I got in 3DMark:

Ryzen 5 5600x + RTX 3090 Ryzen 7 5800X3D + RTX 3090
Time Spy Total – 15504
Graphics – 19392, Physics – 7258
Total – 17,196
Graphics – 19482, Physics – 10330
Fire Strike Total – 32585
Graphics – 48563, Physics – 22262
Total – 37642
Graphics – 48573, Physics – 28725

And here are a couple of games, on Ultra settings and WQHD (3440 x 1440 px) resolution:

Ryzen 5 5600x + RTX 3090 Ryzen 7 5800X3D + RTX 3090
Valheim 96 fps avg, 90 fps low 116 fps avg, 105 fps low
Horizon Zero Dawn 127 fps avg, 120 fps low 130 fps avg, 122 fps low
Jedi Fallen Order 114 fps avg, 106 fps low 133 fps avg, 120 fps low
Battlefield 5 130 fps avg, 110 fps low 160 fps avg, 144 fps low

Of course, the CPU benchmarks in 3DMark went up, but this is expected since we’re going from 6 cores to 8 cores. But the gaming benchmarks were in most cases much better than I expected from a simple increase in cores. We’re looking at a 16-23% increase in three out of the four games that I tested.

Now take this with a grain of salt – I’m not exactly testing apples to apples here since I didn’t have a 5800x to test against. That would show the true value of 3D v-Cache, as it would be the only variable. But I remember reading comparisons of the 5600x and 5800x and the results were nowhere near this drastic.

But what I’m ultimately getting at is the upgrade potential that many Ryzen 5600x owners have here. I think there are a lot of people out there that might want to upgrade their 5600x or even 5800x to this CPU, especially if the gaming performance is important to you. And considering many reviews were only comparing the 5800X3D against Intel’s high-end CPU of this generation, I think my experience upgrading from the 5600x is worth sharing.

But do your homework. I’m sure not all games are going to get affected by the change. As you can see, it barely helped with Horizon Zero Dawn for me. So keep an eye out for professional reviews that come out in the next weeks, as I’m sure we’ll get more details on just how good it does for each game. You’re paying a pretty steep premium for this CPU, so you certainly want to make sure it’s worth it.

Speaking of price, it’s $450 at this point, which is significantly higher than the 5800x which is on sale for $340. On top of that, it’s already out of stock. I’m glad I got it when I did I guess.

Follow this link for updated availability in your region and prices at the time you’re reading the article.

Needless to say, I’m keeping mine and am very happy with it. It runs a little hotter than my 5600x, but all I had to do was adjust my fan curve a little on my water cooler. So it’s a little noisier, but I can live with that.

I know this was short and sweet, but I didn’t want to go into crazy detail other than that I was happy with the upgrade. Still though, if you have any questions, I’m happy to answer them.

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