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AMD Ryzen 7 5800X3D power consumption, efficiency, test setup

AMD’s X3D CPUs are known for their efficiency, and although those efficiency gains mainly show up with the Ryzen 7 7800X3D, the 5800X3D is no slouch. Power is carefully limited on the chip, with it peaking at just 119W in our y-cruncher test. In the same test, the Core i7-14700K drew 335W.

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AMD Ryzen 7 5800X3D — (Image credit: Tom's Hardware)

Y-cruncher leverages AVX instructions, pushing the Ryzen 7 5800X3D to consume more power compared to the 7800X3D. In an all-out, non-AVX workload like Cinebench 2024, the two CPUs are in lockstep. Again, we can see the Raptor Lake competition dancing with 300W across configurations.

Blender and Handbrake tell a similar story, but efficiency is what’s important here, given how broad the performance window is for the chips in our test pool (particularly in applications). The 5800X3D is much more efficient than the 13700K and 14700K. The margins are also narrower than raw power consumption.

Test Setup

We try to minimize the differences between our test platforms to keep our results consistent, which is especially important here given that we used so many different platforms. Even with big differences, we used the same OS image that’s specifically tailored for testing and frozen to avoid updates skewing our results as we test.

In addition to standardising our OS, we standardise our BIOS settings. We test with XMP/EXPO enabled on memory kits that we’ve validated for stability on the platforms we use. We also disable VBS in the BIOS and turn on ReBAR.

Modern AMD and Intel CPUs come with sophisticated boosting algorithms, but they aren’t always covered by warranty. AMD doesn’t cover PBO, for instance, and Intel doesn’t warranty the “Extreme” power profile that’s common on motherboards. Because of the lack of warranty coverage, we test with PBO disabled and Intel’s power profile set at its default settings.

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Intel LGA 1851 (Arrow Lake and Refresh)	Row 0 - Cell 1
Motherboard	ASRock Z890 Taichi
RAM	2x16GB G.Skill Trident Z Neo RGB DDR5-7200
Intel LGA 1700 (Raptor Lake, Alder Lake)	Row 3 - Cell 1
Motherboard	MSI MPG Z790 Carbon Wi-Fi
RAM	2x16GB G.Skill Trident Z Neo RGB DDR5-7200
Intel LGA 1700 DDR4 (Raptor Lake, Alder Lake)	Row 6 - Cell 1
Motherboard	MSI MPG Z690 Edge Wi-Fi DDR4
RAM	4x8GB G.Skill Trident Z RGB DDR4-3200
AMD AM5 (Zen 5, Zen 4)	Row 9 - Cell 1
Motherboard	MSI MPG X870E Carbon Wi-Fi, Gigabyte Aorus X870E Elite X3D ICE
RAM	2x16GB G.Skill Trident Z Neo RGB DDR5-6000
AMD AM4 (Zen 3)	Row 12 - Cell 1
Motherboard	Asus Tuf Gaming X570-Pro Wi-Fi
RAM	4x8GB G.Skill Trident Z RGB DDR4-3200
All Systems	Row 15 - Cell 1
Gaming CPU	Nvidia GeForce RTX 5090 Founder’s Edition
Application GPU	Nvidia GeForce RTX 2080 Ti Founder’s Edition
Cooler	Corsair iCue Link H150i RGB
Storage	2TB Sabrent Rocket 4 Plus
PSU	MSI MPG A1000GS, Gigabyte UD1000GM PG5 V2
Other	Arctic MX-4 TIM, Windows 11 Pro, Alamengda open test bench

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Jake Roach is the Senior CPU Analyst at Tom’s Hardware, writing reviews, news, and features about the latest consumer and workstation processors.

14 Comments Comment from the forums

Makaveli

"and the processor doesn’t officially support AMD’s Precision Boost Overdrive (PBO)"
This is false I owned a 5800X3D and had zero issues running PBO -30 all core on it.
Reply
waltc3

This is AMD's way of acknowledging that due to demand outstripping supply so much presently, that even DDR4 isn't as cheap as it was, so being able to upgrade existing systems is a money-saving event of no small proportion. The whole point of the 10th Anniversary sale is strictly for people with an AM4 motherboard who are still using it (likely several million, I'd think, including a working AM4 at my home) who want to buy the fastest gaming CPU on the market for AM4, and that would be this CPU, the re-designed and re-engineered 5800x3d...;) (It's a brand-new CPU from the ground up as the original could no longer be manufactured.) Comparing it to Intel parts is really silly, I think, since none of them can drop in on an AM4 motherboard, and so if you are going to compare Intel CPUs then figure in the costs of everything else needed for the Intel CPU to run--like the mobo and the ram, for instance, etc. This release was not meant to do anything but allow existing AM4 owners to get a lot of extra mileage out of their existing AM4 parts still in service, when nothing else will do. AMD delights in treating its customers well, I think, and often goes beyond what might be expected normally for customers of previous products...;) Interesting times.
Reply
JakeRoach

Makaveli said:
"and the processor doesn’t officially support AMD’s Precision Boost Overdrive (PBO)"
This is false I owned a 5800X3D and has zero issues running PBO -30 all core on it.
It depends on your motherboard. But yes, some boards support it, so I've removed the mention from the article.
Reply
phxrider

It's overpriced, but it's perfectly priced to sell to people who already have am4 systems and can't afford a full platform upgrade and ddr5 RAM.
Reply
ohio_buckeye

waltc3 said:
This is AMD's way of acknowledging that due to demand outstripping supply so much presently, that even DDR4 isn't as cheap as it was, so being able to upgrade existing systems is a money-saving event of no small proportion. The whole point of the 10th Anniversary sale is strictly for people with an AM4 motherboard who are still using it (likely several million, I'd think, including a working AM4 at my home) who want to buy the fastest gaming CPU on the market for AM4, and that would be this CPU, the re-designed and re-engineered 5800x3d...;) (It's a brand-new CPU from the ground up as the original could no longer be manufactured.) Comparing it to Intel parts is really silly, I think, since none of them can drop in on an AM4 motherboard, and so if you are going to compare Intel CPUs then figure in the costs of everything else needed for the Intel CPU to run--like the mobo and the ram, for instance, etc. This release was not meant to do anything but allow existing AM4 owners to get a lot of extra mileage out of their existing AM4 parts still in service, when nothing else will do. AMD delights in treating its customers well, I think, and often goes beyond what might be expected normally for customers of previous products...;) Interesting times.

Don’t be mistaken here. I run AMD at home myself and have built a lot of AMD systems. But they are a company that needs money just like Intel and nvidia. If they see am5 sales taking hits due to ram pricing, this was a logical move.
Reply
Droz23

I really love the analysis. On the face of the charts for the 5800x3D from the forums is can be seen how it lags after all these years but is still competitive. The really equalizer is the resolution and the bolt on Tech for GPU's. Once the test are done above 1080P, say 1440p. The Delta's shrink massively do to binding. This lets the 5800x3D stay relevant for quite awhile. the GPU manufactures serve the AI God but still have a reason to keep face in the PC market. So the tech is getting passed down for free for the most part. As drivers get upgraded, performance increases. There is still a few years left on this CPU.
Reply
Toylander

Admin said:
AMD has re-released the Ryzen 7 5800X3D to provide some relief from high DDR5 prices, so we’re re-reviewing the CPU to see how it stacks up to current options around the same price.

AMD Ryzen 7 5800X3D re-review: Maxing out DDR4’s gaming potential : Read more
I've been ummming and amming for a while now on which way to upgrade my system, it's been a shaky path since covid, I had my 3070 RTX OC sat on the shelf for a while when gpu prices went silly, and eventually moved it from my hp twin xeon workstation to an am4 platform system. I started looking at upgrading the 8gb of ram but even ddr4 is now ridiculous and used prices higher than new… is this a worthy upgrade at the cost even if I manage to sell on my used ryzen 5 5600xt or would I be better off with the am5 platform and a better cpu for less or the same with a budget board, and then spend on the minimum of ddr5 ram. With rumours or ddr4 going back into production I question if it's worth trying to skip a generation it doesn't look like ddr5 is for the consumer market at present are AMD on to something here is
the am4 platform is in line for a series of other upgrades?
Reply
Dntknwitall

They released the chip for people looking to upgrade that are on lower DDR4 chips so obviously they will be invested in DDR4. Whoever wrote this needs to be demoted to janitorial duties. $350 for the highest DDR4 chip for gaming is not a bad deal try buying it in Canada where it is going for $600+. I just paid 300 CAD for a 10700k to replace a 10100 chip so things are very expensive in the north and not getting better. Prices do not reflect value anymore so writting articles like they do is just dumb in my opinion.
Reply
cp0x

This CPU will be back down to $250 in a few months. The retailers are being forced by AMD to set the price temporarily up to $349.99 just because that's a condition of getting any initial allocation. Stupid game by AMD that they also played with the 9950x3d2.
Reply
abufrejoval

Toylander said:
I've been ummming and amming for a while now on which way to upgrade my system, it's been a shaky path since covid, I had my 3070 RTX OC sat on the shelf for a while when gpu prices went silly, and eventually moved it from my hp twin xeon workstation to an am4 platform system. I started looking at upgrading the 8gb of ram but even ddr4 is now ridiculous and used prices higher than new… is this a worthy upgrade at the cost even if I manage to sell on my used ryzen 5 5600xt or would I be better off with the am5 platform and a better cpu for less or the same with a budget board, and then spend on the minimum of ddr5 ram. With rumours or ddr4 going back into production I question if it's worth trying to skip a generation it doesn't look like ddr5 is for the consumer market at present are AMD on to something here is
the am4 platform is in line for a series of other upgrades?
With a 9800X3D selling at €20 extra, this CPU is clearly for those who already own an AM4 system, including all the RAM they need (or can get them 2nd hand on the cheap).

Using it to build from scratch with parts from retail seems a very bad investment.

With 8GB of DDR4 on AM4 and perhaps without the ability to add another 8GB easily, you're in a tough spot for sure: you may just need to hunt around for 2nd hand parts.

Don't expect magic replacing the 5600XT with a 5800X3D, especially if your DDR4 came from Xeon times and might be as slow as DDR4-2133: the basic assumption is that a 5800X3D with DDR4-3200 is nearly as good as a 7800X with DDR5-5200 (or rather better than all the Rocket Lake contemporaries).

A lot of games aren't nearly as CPU dependent as the PC press seems to imply, while some games require eliminating quite a few more bottlenecks besides just a CPU upgrade: you really need to know where you're hurting.
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