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AMD Ryzen 9 7900X vs Intel 9th Gen Intel Core i9-9900KS: Comparison
What is the difference between AMD Ryzen 9 7900X and Intel 9th Gen Intel Core i9-9900KS?
On l3 cache the spread is 75%, AMD Ryzen 9 7900X 64 MB against Intel 9th Gen Intel Core i9-9900KS 16 MB, so AMD Ryzen 9 7900X takes it. Add l2 cache to that, 12 MB on the AMD Ryzen 9 7900X versus 2 MB on the Intel 9th Gen Intel Core i9-9900KS, and the pattern holds. Add pcie lanes to that, 24 on the AMD Ryzen 9 7900X versus 16 on the Intel 9th Gen Intel Core i9-9900KS, and the pattern holds.
Who each one is for
Buy the AMD Ryzen 9 7900X for enthusiast desktops and streaming and gaming, though it is not the pick for budget builds and small form factor low-power systems. 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. Our rating of the AMD Ryzen 9 7900X (8.6/10): the AMD Ryzen 9 7900X is a strong all-rounder for enthusiasts who want top clock speeds for both gaming and productivity.
Which is cheaper, AMD Ryzen 9 7900X or Intel 9th Gen Intel Core i9-9900KS?
At the last price check the Intel 9th Gen Intel Core i9-9900KS was $513 and the AMD Ryzen 9 7900X $549, a 7% premium.
Where the two are identical
Where they agree, they agree completely, efficiency cores, integrated graphics, form factor, market segment and smt enabled included, so the decision does not turn on any of those. They match on 2 further specifications as well.
Frequently asked questions
Do the AMD Ryzen 9 7900X and Intel 9th Gen Intel Core i9-9900KS differ on total cores?
Yes. Total Cores reads 12 on the AMD Ryzen 9 7900X versus 8 on the Intel 9th Gen Intel Core i9-9900KS.
Is the Memory Channels the same on the AMD Ryzen 9 7900X 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
Form Factor
- AMD Ryzen 9 7900X
- Desktop
- Intel 9th Gen Intel Core i9-9900KS
- Desktop
Codename
- AMD Ryzen 9 7900X
- Raphael
- Intel 9th Gen Intel Core i9-9900KS
- Coffee Lake Refresh
Release Year
- AMD Ryzen 9 7900X
- 2022
- Intel 9th Gen Intel Core i9-9900KS
- 2019
TDP
- AMD Ryzen 9 7900X
- 170 W
- Intel 9th Gen Intel Core i9-9900KS
- 127 W
iGPU
- AMD Ryzen 9 7900X
- AMD Radeon Graphics
- Intel 9th Gen Intel Core i9-9900KS
- Intel UHD Graphics 630
Market Segment
- AMD Ryzen 9 7900X
- Desktop
- Intel 9th Gen Intel Core i9-9900KS
- Desktop
Microarchitecture
- AMD Ryzen 9 7900X
- Zen 4 (7000 series)
- Intel 9th Gen Intel Core i9-9900KS
- Coffee Lake Refresh, 9th Gen Intel Core
Socket
- AMD Ryzen 9 7900X
- AM5
- Intel 9th Gen Intel Core i9-9900KS
- FCLGA1151
Socket Status
- AMD Ryzen 9 7900X
- Current
- Intel 9th Gen Intel Core i9-9900KS
- End of Life
Process Node
- AMD Ryzen 9 7900X
- 5 nm
- Intel 9th Gen Intel Core i9-9900KS
- 14 nm
Total Cores
- AMD Ryzen 9 7900X
- 12Best
- Intel 9th Gen Intel Core i9-9900KS
- 8
Performance Cores
- AMD Ryzen 9 7900X
- 12Best
- Intel 9th Gen Intel Core i9-9900KS
- 8
Efficiency Cores
- AMD Ryzen 9 7900X
- 0
- Intel 9th Gen Intel Core i9-9900KS
- 0
Total Threads
- AMD Ryzen 9 7900X
- 24Best
- Intel 9th Gen Intel Core i9-9900KS
- 16
SMT Enabled
- AMD Ryzen 9 7900X
- Yes
- Intel 9th Gen Intel Core i9-9900KS
- Yes
P-Core Base Clock
- AMD Ryzen 9 7900X
- 4.7 GHz
- Intel 9th Gen Intel Core i9-9900KS
- 4 GHz
P-Core Boost Clock
- AMD Ryzen 9 7900X
- 5.6 GHz
- Intel 9th Gen Intel Core i9-9900KS
- 5 GHz
L2 Cache
- AMD Ryzen 9 7900X
- 12 MBBest
- Intel 9th Gen Intel Core i9-9900KS
- 2 MB-83%
L3 Cache
- AMD Ryzen 9 7900X
- 64 MBBest
- Intel 9th Gen Intel Core i9-9900KS
- 16 MB-75%
Base Power
- AMD Ryzen 9 7900X
- 170 W
- Intel 9th Gen Intel Core i9-9900KS
- 127 W
Max Turbo Power
- AMD Ryzen 9 7900X
- 230 W
- Intel 9th Gen Intel Core i9-9900KS
- 127 W
Memory Type
- AMD Ryzen 9 7900X
- DDR5Best
- Intel 9th Gen Intel Core i9-9900KS
- DDR4-2666
Max Memory Speed
- AMD Ryzen 9 7900X
- 5200 MT/sBest
- Intel 9th Gen Intel Core i9-9900KS
- 2666 MT/s
Memory Channels
- AMD Ryzen 9 7900X
- 2
- Intel 9th Gen Intel Core i9-9900KS
- 2
ECC Support
- AMD Ryzen 9 7900X
- Yes
- Intel 9th Gen Intel Core i9-9900KS
- No
Integrated Graphics
- AMD Ryzen 9 7900X
- Yes
- Intel 9th Gen Intel Core i9-9900KS
- Yes
iGPU Model
- AMD Ryzen 9 7900X
- AMD Radeon Graphics
- Intel 9th Gen Intel Core i9-9900KS
- Intel UHD Graphics 630
Copilot Plus Certified
- AMD Ryzen 9 7900X
- No
- Intel 9th Gen Intel Core i9-9900KS
- No
PCIe Generation
- AMD Ryzen 9 7900X
- PCIe 5.0
- Intel 9th Gen Intel Core i9-9900KS
- 3.0
PCIe Lanes
- AMD Ryzen 9 7900X
- 24
- Intel 9th Gen Intel Core i9-9900KS
- 16-33%
Launch MSRP
- AMD Ryzen 9 7900X
- $549
- Intel 9th Gen Intel Core i9-9900KS
- $513
Retail Availability
- AMD Ryzen 9 7900X
- Boxed Retail
- Intel 9th Gen Intel Core i9-9900KS
- Retail
Which one should you pick?
Choose 7900X if you want the higher L2 cache (12 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 7900X | Intel 9th Gen Intel Core i9-9900KS |
|---|---|---|
| Amazon | $549.00 View on Amazon | |
| Newegg | View on Newegg | |
| Best Buy | View on Best Buy | |
| 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.
Verdict
AMD Ryzen 9 7900X
8.6 / 10 Expert Rating
The AMD Ryzen 9 7900X is a strong all-rounder for enthusiasts who want top clock speeds for both gaming and productivity.