Intel Core i7-12700 vs AMD Ryzen 7 5800X3D: Which is better?

AMD released a batch of new processors as part of its Spring Update a couple of days ago. The announcement was titled the company’s new Ryzen 7 5800X3D, an upgraded version of the Ryzen 7 5800X with more L3 cache. In this article, we will take a look at the Intel Core i7-12700 vs AMD Ryzen 7 5800X3D comparison to see which is the best CPU to buy for gaming.

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Before we take a look at the comparison, let’s first take a quick look at the specification table to see what each processor brings to the table:

XDA-Developers Video of the Day
Customize AMD Ryzen 7 5800X3D Intel Core i7-12700
CPU socket AMD AM4 LGA 1700
nuclei 8 12 (8P + 4E)
threads 16 20
lithography TSMC 7nm FinFET Intel 7 (10 nm)
Fundamental frequency 3.4 GHz 2.10 GHz (ph-core) | 1.60 GHz (ecore)
Frequency increase 4.5 GHz 4.80 GHz (V-core) | 3.60 GHz (E-core)
Not locked for overclocking? number Yes
L3 cache 96 MB 25 MB
Default TDP 105 W 65 watts
the above. Operating temperature (Tjmax) 90°C 100°C
Memory support DDR4 up to 3200MHz
up to 128 GB
DDR4 3200MT/sec | DDR5-4800MT/sec
up to 128 GB
Integrated graphics not available Intel UHD 770

Intel Core i7-12700 vs Ryzen 7 5800X3D: Performance difference

As you can see from the specs table above, the AMD Ryzen 7 5800X3D is an octa-core CPU with 16 threads. On the other hand, the Intel Core i7-12700 processor features the new hybrid Intel architecture with performance and efficiency cores. Core i7-12700 has a total of 12 cores, of which eight are performance cores and four are efficiency cores. And as we noted in our Core i7-12700 review, this hybrid core architecture allows the chip to achieve better results across different benchmarks while still facing up to some high-end parts. We haven’t had a chance to test the Ryzen 7 5800XD yet, but the new Ryzen chip will show better results, especially in games. This is due to the added L3 cache.

The AMD Ryzen 7 5800X3D, as you can see, packs 96MB L3 cache while the Intel Core i7-12700, by comparison, only packs 25MB. This will allow many applications to quickly store and pick up necessary resources from the cache rather than having to deal with any latency issues. TI will probably play a big role in driving the chip’s overall performance output, especially when it comes to gaming.

According to AMD’s internal testing, the new Ryzen 7 5800X3D performs significantly better than the Ryzen 7 5800X just for adding more cache. The additional L3 cache is said to have resulted in a massive performance increase of up to 40% over the old chip. In fact, AMD goes so far as to say that its new chip with 3D cache is the best gaming processor out there. This means that it will likely match the overall performance of even the Core i9-12900K, Alder Lake’s Halo product in the desktop space. Here, take a look:


Comparison between AMD Ryzen 7 5800X3D and Intel Core i9

But when we tested the Intel Core i7-12700 and compared performance numbers to the 12900K, we noticed that this unlocked chip came close to matching overall performance as the 12900K in games and similarly threaded tasks. Compared to the Ryzen 7 5800X3D chip, the Intel Core i7-12700 processor also has slightly faster P cores at the maximum boost frequency. It’s really not an apple-to-apple comparison when it comes to the overall CPU architecture or core clock, but the 12700 has faster boost cores up to 4.80GHz compared to the Ryzen 7 5800X3D’s 4.5GHz. AMD has lowered clock speeds on the new chip from their older counterpart, possibly due to thermal concerns. In fact, it wasn’t even unlocked for overclocking. This could mean that the Intel chip should be able to match or at least come close to the overall performance of the Ryzen 7 5800X3D.

Another thing worth noting about these chips is that the Core i7-12700 supports both DDR4 and DDR5 memory modules, while the Ryzen 7 5800X3D supports only DDR4 memory. While there is no immediate need to upgrade to the new memory standard, we think DDR5 memory performs better overall, although there are some latency issues. You can check DDR4 Memory vs DDR5 Memory to learn more about the difference in details.

No stock cooler with Ryzen 7 5800X3D

Another thing worth noting about the new AMD chip is that it is not integrated with the CPU cooler. It’s not really a surprise considering how the Ryzen 7 5800X didn’t have it either. However, the Intel Core i7-12700 processor comes with its own CPU cooler, which means you don’t have to worry about spending more on a CPU cooler. Also, the new stock Laminar RM1 should be able to handle the thermal output of the Ryzen 7 5800X3D chip without any issues since you can’t overclock it and push it beyond the stock settings.

The Ryzen 7 5800X3D has a maximum operating temperature of 90°C, while the 12700 has a maximum operating temperature of 100°C. During testing, the Core i7-12700, however, managed to stay well below acceptable limits in terms of heat. We’ll have more to talk about the thermal performance of the Ryzen 7 5800X3D once we have a chance to test it out.

Intel's new Laminar CPU cooler with blue LED light

Pricing and availability

The AMD Ryzen 7 5800X3D will go on sale starting April 20 for $449. That’s the same price the Ryzen 7 5800X was originally launched for. On the other hand, the Intel Core i7-12700 is available for only $359. You can also buy a Core i7-12700F without the integrated GPU for just $312.

    Intel Core i7-12700 . processor

    The Intel Core i7-12700 is a great CPU to consider on both the Core i5-12600K and Core i7-12700K.

Intel Core i7-12700 vs Ryzen 7 5800X3D: Which Should You Buy?

The Ryzen 7 5800X3D will probably perform better overall, but you’ll also spend about $100 extra, on top of the additional cost of a CPU cooler. Unless you’re looking to get the absolute best performance for a 4K gaming enthusiast build, we suggest you opt for a Core i7-12700 processor. Not only does it match the overall performance of the unlocked 12700K but also comes close to the 12900K CPU, but you also get a stock cooler included in the box. You can easily build a mid to high quality gaming rig without having to spend a lot of money with this processor. It’s also worth noting that AMD’s new Ryzen 7000 chipset will be available here in a few months, bringing Zen 4 processors and new features like PCIe 5.0 support.

If you want to check out your other CPU options, be sure to check out our collection of the best CPUs. You can also check out the Ryzen 6000 series chipset if you want to explore the options in the laptop space. Alternatively, you can also join our XDA Computing forums to discuss your design or get more product recommendations from the experts in our community.