AMD Ryzen 9 4900H
- iGPU:
- AMD Radeon Vega 8 Graphics
- Boost/Base Clock:
- 4.4 GHz / 3.3 GHz
- Core/Thread Count:
- 8 Core (SMT Disabled)
- Cache:
- 8MB L3 + 4MB L2 + 512KB L1
- TDP:
- 45 Watts
- CPU Process Node:
- 7 Nanometers (TSMC)
- CPU Socket:
- FP6
- CPU Series:
- Zen 2, Ryzen 4000 Series "Renoir"
- Memory Support:
- DDR4-3200, LPDDR4-4266
- Form Factor:
- Laptop
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Manufacturer: AMD Last updated: September 9, 2026
AMD Ryzen 9 4900H Review
The AMD Ryzen 9 4900H is an 8-core mobile processor built on Zen 2, notable for shipping with SMT (simultaneous multithreading) disabled despite carrying the flagship Ryzen 9 badge, running a 3.3 GHz base clock that boosts to 4.4 GHz within a 45 Watt TDP.
Marketed as one of the fastest laptop CPUs of its launch window despite the unusual choice to disable SMT, this chip prioritizes single-thread and 8-core (non-hyperthreaded) performance over the maximum threading found on its sibling, the Ryzen 9 4900HS.
AMD Radeon Vega 8 Graphics
An 8-compute-unit Vega iGPU, adequate as a fallback for battery-saving switchable graphics in a gaming laptop pairing this chip with a discrete GPU.
How Is the Ryzen 9 4900H in Terms of Performance
The disabled SMT is a genuine, notable choice for a flagship-badged chip, meaning multi-threaded work that specifically benefits from hyperthreading will trail SMT-equipped 8-core siblings, while single-threaded and lightly-threaded performance remains strong given the same underlying Zen 2 cores.
Benchmarks
Cinebench R23 multi-core scores of 11,069 and single-core scores of 1,289 reflect genuinely strong performance despite the disabled SMT. Geekbench 5 multi-core scores of 7,908 confirm this chip remained one of the strongest mobile processors of its launch window.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Gaming laptops of the Ryzen 4000 generation wanting strong 8-core, single-thread-focused performance
Not for
- Buyers specifically wanting maximum multi-threaded ceiling from hyperthreading, the SMT-equipped Ryzen 9 4900HS delivers stronger results in heavily-threaded workloads
Specifications
What these specs meanIdentity
| Brand | AMD |
|---|---|
| Product Line | Ryzen 9 |
| Model Number | 4900H |
| Codename | Renoir |
| Release Year | 2020 |
Segment and platform
| Market Segment | Laptop |
|---|---|
| Microarchitecture | Zen 2, Ryzen 4000 Series "Renoir" |
| Socket | FP6 |
| Process Node | 7 nm |
Core configuration
| Total Cores | 8 |
|---|---|
| Performance Cores | 8 |
| Efficiency Cores | 0 |
| Total Threads | 16 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 3.3 GHz |
|---|---|
| P-Core Boost Clock | 4.4 GHz |
Cache
| L2 Cache | 4 MB |
|---|---|
| L3 Cache | 8 MB |
Memory
| Memory Type | DDR4-3200, LPDDR4-4266 |
|---|
Graphics and AI
| Integrated Graphics | Yes |
|---|
| Form Factor | Laptop |
|---|---|
| TDP | 45 W |
| iGPU | AMD Radeon Vega 8 Graphics |
FAQs
What are the key specifications of the AMD Ryzen 9 4900H?
The AMD Ryzen 9 4900H has 8 cores and 16 threads, a 3.3 GHz base and 4.4 GHz boost clock, 8 MB of L3 cache and a 45 W TDP. Integrated graphics: AMD Radeon Vega 8 Graphics. Socket: FP6.
Will the AMD Ryzen 9 4900H work with my current setup?
The AMD Ryzen 9 4900H lists CPU Socket is FP6. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the AMD Ryzen 9 4900H best suited to?
Best suited to: Gaming laptops of the Ryzen 4000 generation wanting strong 8-core, single-thread-focused performance.
What are the drawbacks of the AMD Ryzen 9 4900H?
Not the best fit for: Buyers specifically wanting maximum multi-threaded ceiling from hyperthreading, the SMT-equipped Ryzen 9 4900HS delivers stronger results in heavily-threaded workloads.