Consumercarts is reader-supported. Learn more
AMD Ryzen 9 5900X vs Intel 9th Gen Intel Core i9-9900KS: Comparison
AMD Ryzen 9 5900X vs Intel 9th Gen Intel Core i9-9900KS: the l3 cache difference
The gap that matters here is l3 cache: AMD Ryzen 9 5900X 64 MB against Intel 9th Gen Intel Core i9-9900KS 16 MB, which puts AMD Ryzen 9 5900X 75% ahead. Add l2 cache to that, 6 MB on the AMD Ryzen 9 5900X versus 2 MB on the Intel 9th Gen Intel Core i9-9900KS, and the pattern holds. There is a split on tdp as well, 105 W on the AMD Ryzen 9 5900X versus 127 W on the Intel 9th Gen Intel Core i9-9900KS. They differ on integrated graphics too, No on the AMD Ryzen 9 5900X versus Yes on the Intel 9th Gen Intel Core i9-9900KS.
AMD Ryzen 9 5900X vs Intel 9th Gen Intel Core i9-9900KS: which one fits your build
Take the AMD Ryzen 9 5900X for buyers wanting a genuinely balanced high-end desktop chip strong at both gaming and heavy productivity work. Avoid it for buyers who need integrated graphics, this chip requires a discrete GPU. Take the Intel 9th Gen Intel Core i9-9900KS for enthusiasts wanting Intel's genuine all-core 5.0 GHz binning achievement for sustained multi-threaded performance. It is not the one for budget-conscious buyers, the standard i9-9900K delivers very close real-world performance for typically less.
Which is cheaper, AMD Ryzen 9 5900X or Intel 9th Gen Intel Core i9-9900KS?
Cost splits them too. Intel 9th Gen Intel Core i9-9900KS sits at $513, AMD Ryzen 9 5900X at $549, 7% more.
Where the two are identical
Everything else lines up. Efficiency cores, socket status, form factor, market segment and smt enabled read the same on both, so those are not worth weighing. They match on 2 further specifications as well.
Frequently asked questions
Do the AMD Ryzen 9 5900X and Intel 9th Gen Intel Core i9-9900KS differ on total cores?
Yes. Total Cores reads 12 on the AMD Ryzen 9 5900X versus 8 on the Intel 9th Gen Intel Core i9-9900KS.
Is the Memory Channels the same on the AMD Ryzen 9 5900X and Intel 9th Gen Intel Core i9-9900KS?
It is. Both are listed at 2, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- AMD Ryzen 9 5900X
- AMD
- Intel 9th Gen Intel Core i9-9900KS
- Intel
Product Line
- AMD Ryzen 9 5900X
- Ryzen 9
- Intel 9th Gen Intel Core i9-9900KS
- Core i9
Form Factor
- AMD Ryzen 9 5900X
- Desktop
- Intel 9th Gen Intel Core i9-9900KS
- Desktop
Model Number
- AMD Ryzen 9 5900X
- 5900X
- Intel 9th Gen Intel Core i9-9900KS
- 9900KS
Codename
- AMD Ryzen 9 5900X
- Vermeer
- Intel 9th Gen Intel Core i9-9900KS
- Coffee Lake Refresh
Release Year
- AMD Ryzen 9 5900X
- 2020
- Intel 9th Gen Intel Core i9-9900KS
- 2019
TDP
- AMD Ryzen 9 5900X
- 105 W
- Intel 9th Gen Intel Core i9-9900KS
- 127 W
iGPU
- AMD Ryzen 9 5900X
- None
- Intel 9th Gen Intel Core i9-9900KS
- Intel UHD Graphics 630
Market Segment
- AMD Ryzen 9 5900X
- Desktop
- Intel 9th Gen Intel Core i9-9900KS
- Desktop
Microarchitecture
- AMD Ryzen 9 5900X
- Zen 3, Ryzen 5000 Series
- Intel 9th Gen Intel Core i9-9900KS
- Coffee Lake Refresh, 9th Gen Intel Core
Socket
- AMD Ryzen 9 5900X
- AM4
- Intel 9th Gen Intel Core i9-9900KS
- FCLGA1151
Socket Status
- AMD Ryzen 9 5900X
- End of Life
- Intel 9th Gen Intel Core i9-9900KS
- End of Life
Process Node
- AMD Ryzen 9 5900X
- 7 nm
- Intel 9th Gen Intel Core i9-9900KS
- 14 nm
Total Cores
- AMD Ryzen 9 5900X
- 12Best
- Intel 9th Gen Intel Core i9-9900KS
- 8
Performance Cores
- AMD Ryzen 9 5900X
- 12Best
- Intel 9th Gen Intel Core i9-9900KS
- 8
Efficiency Cores
- AMD Ryzen 9 5900X
- 0
- Intel 9th Gen Intel Core i9-9900KS
- 0
Total Threads
- AMD Ryzen 9 5900X
- 24Best
- Intel 9th Gen Intel Core i9-9900KS
- 16
SMT Enabled
- AMD Ryzen 9 5900X
- Yes
- Intel 9th Gen Intel Core i9-9900KS
- Yes
P-Core Base Clock
- AMD Ryzen 9 5900X
- 3.7 GHz
- Intel 9th Gen Intel Core i9-9900KS
- 4 GHz
P-Core Boost Clock
- AMD Ryzen 9 5900X
- 4.8 GHz
- Intel 9th Gen Intel Core i9-9900KS
- 5 GHz
L2 Cache
- AMD Ryzen 9 5900X
- 6 MBBest
- Intel 9th Gen Intel Core i9-9900KS
- 2 MB-67%
L3 Cache
- AMD Ryzen 9 5900X
- 64 MBBest
- Intel 9th Gen Intel Core i9-9900KS
- 16 MB-75%
Base Power
- AMD Ryzen 9 5900X
- 105 W
- Intel 9th Gen Intel Core i9-9900KS
- 127 W
Max Turbo Power
- AMD Ryzen 9 5900X
- 142 W
- Intel 9th Gen Intel Core i9-9900KS
- 127 W
Memory Type
- AMD Ryzen 9 5900X
- DDR4
- Intel 9th Gen Intel Core i9-9900KS
- DDR4-2666
Max Memory Speed
- AMD Ryzen 9 5900X
- 3200 MT/sBest
- Intel 9th Gen Intel Core i9-9900KS
- 2666 MT/s
Memory Channels
- AMD Ryzen 9 5900X
- 2
- Intel 9th Gen Intel Core i9-9900KS
- 2
ECC Support
- AMD Ryzen 9 5900X
- Yes
- Intel 9th Gen Intel Core i9-9900KS
- No
Integrated Graphics
- AMD Ryzen 9 5900X
- No
- Intel 9th Gen Intel Core i9-9900KS
- Yes
Copilot Plus Certified
- AMD Ryzen 9 5900X
- No
- Intel 9th Gen Intel Core i9-9900KS
- No
PCIe Generation
- AMD Ryzen 9 5900X
- PCIe 4.0
- Intel 9th Gen Intel Core i9-9900KS
- 3.0
PCIe Lanes
- AMD Ryzen 9 5900X
- 24
- Intel 9th Gen Intel Core i9-9900KS
- 16-33%
Launch MSRP
- AMD Ryzen 9 5900X
- $549
- Intel 9th Gen Intel Core i9-9900KS
- $513
Retail Availability
- AMD Ryzen 9 5900X
- Boxed Retail
- Intel 9th Gen Intel Core i9-9900KS
- Retail
Which one should you pick?
Choose 5900X if you want the higher L2 cache (6 MB vs 2 MB), the higher L3 cache (64 MB vs 16 MB) and the higher memory channels (2 vs 2).
Choose 9900KS if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | AMD Ryzen 9 5900X | Intel 9th Gen Intel Core i9-9900KS |
|---|---|---|
| Amazon | $549.00 View on Amazon | |
| Consumercarts listing | $513.00 View on Consumercarts listing |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.