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AMD Ryzen 9 4900H vs AMD Ryzen 9 6900HX: Comparison
What is the difference between Ryzen 9 4900H and Ryzen 9 6900HX?
L3 cache is where these two genuinely part company, Ryzen 9 4900H 8 MB against Ryzen 9 6900HX 16 MB, a 50% lead for Ryzen 9 6900HX. There is a split on product line as well, Ryzen 9 on the Ryzen 9 4900H versus Ryzen on the Ryzen 9 6900HX. There is a split on form factor as well, Laptop on the Ryzen 9 4900H versus Laptops, Desktops on the Ryzen 9 6900HX. They differ on release year too, 2020 on the Ryzen 9 4900H versus 2022 on the Ryzen 9 6900HX. They differ on igpu too, AMD Radeon Vega 8 Graphics on the Ryzen 9 4900H versus AMD Radeon 680M on the Ryzen 9 6900HX. Microarchitecture is not the same on both, Zen 2, Ryzen 4000 Series "Renoir" on the Ryzen 9 4900H versus Zen 3+ on the Ryzen 9 6900HX.
Who each one is for
Take the Ryzen 9 4900H for gaming laptops of the Ryzen 4000 generation wanting strong 8-core, single-thread-focused performance. It is the wrong buy for buyers specifically wanting maximum multi-threaded ceiling from hyperthreading, the SMT-equipped Ryzen 9 4900HS delivers stronger results in heavily-threaded workloads. Buy the Ryzen 9 6900HX for mainstream desktop builds and everyday productivity, though it is the wrong buy for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads.
What Ryzen 9 4900H and Ryzen 9 6900HX have in common
Where they agree, they agree completely, total cores, performance cores, efficiency cores, total threads and p-core base clock included, so the decision does not turn on any of those. They match on 5 further specifications as well.
Frequently asked questions
Do the Ryzen 9 4900H and Ryzen 9 6900HX differ on p-core boost clock?
Yes. P-Core Boost Clock reads 4.4 GHz on the Ryzen 9 4900H versus 4.9 GHz on the Ryzen 9 6900HX.
Is the TDP the same on the Ryzen 9 4900H and Ryzen 9 6900HX?
It is. Both are listed at 45 W, so it is not a reason to pick one over the other.
Specs and benchmarks
Product Line
- AMD Ryzen 9 4900H
- Ryzen 9
- AMD Ryzen 9 6900HX
- Ryzen
Form Factor
- AMD Ryzen 9 4900H
- Laptop
- AMD Ryzen 9 6900HX
- Laptops, Desktops
Model Number
- AMD Ryzen 9 4900H
- 4900H
- AMD Ryzen 9 6900HX
- 6900HX
Codename
- AMD Ryzen 9 4900H
- Renoir
- AMD Ryzen 9 6900HX
- Rembrandt
Release Year
- AMD Ryzen 9 4900H
- 2020
- AMD Ryzen 9 6900HX
- 2022
TDP
- AMD Ryzen 9 4900H
- 45 W
- AMD Ryzen 9 6900HX
- 45 W
iGPU
- AMD Ryzen 9 4900H
- AMD Radeon Vega 8 Graphics
- AMD Ryzen 9 6900HX
- AMD Radeon 680M
Market Segment
- AMD Ryzen 9 4900H
- Laptop
- AMD Ryzen 9 6900HX
- Laptop
Microarchitecture
- AMD Ryzen 9 4900H
- Zen 2, Ryzen 4000 Series "Renoir"
- AMD Ryzen 9 6900HX
- Zen 3+
Socket
- AMD Ryzen 9 4900H
- FP6
- AMD Ryzen 9 6900HX
- FP7
Process Node
- AMD Ryzen 9 4900H
- 7 nm
- AMD Ryzen 9 6900HX
- 6 nm
Total Cores
- AMD Ryzen 9 4900H
- 8
- AMD Ryzen 9 6900HX
- 8
Performance Cores
- AMD Ryzen 9 4900H
- 8
- AMD Ryzen 9 6900HX
- 8
Efficiency Cores
- AMD Ryzen 9 4900H
- 0
- AMD Ryzen 9 6900HX
- 0
Total Threads
- AMD Ryzen 9 4900H
- 16
- AMD Ryzen 9 6900HX
- 16
SMT Enabled
- AMD Ryzen 9 4900H
- Yes
- AMD Ryzen 9 6900HX
- Yes
P-Core Base Clock
- AMD Ryzen 9 4900H
- 3.3 GHz
- AMD Ryzen 9 6900HX
- 3.3 GHz
P-Core Boost Clock
- AMD Ryzen 9 4900H
- 4.4 GHz
- AMD Ryzen 9 6900HX
- 4.9 GHz
L2 Cache
- AMD Ryzen 9 4900H
- 4 MB
- AMD Ryzen 9 6900HX
- 4 MB
L3 Cache
- AMD Ryzen 9 4900H
- 8 MB-50%
- AMD Ryzen 9 6900HX
- 16 MBBest
Memory Type
- AMD Ryzen 9 4900H
- DDR4-3200, LPDDR4-4266
- AMD Ryzen 9 6900HX
- DDR5Best
Integrated Graphics
- AMD Ryzen 9 4900H
- Yes
- AMD Ryzen 9 6900HX
- Yes
Which one should you pick?
Choose 4900H if you want the higher L2 cache (4 MB vs 4 MB).
Choose 6900HX if you want the higher L3 cache (16 MB vs 8 MB).