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AMD Ryzen 5 8640HS
A six-core, 12-thread Zen 4 Hawk Point chip with 3.5 to 4.9GHz clocks, Radeon 760M graphics and a Ryzen AI NPU rated up to 16 TOPS. Its 28W default TDP (20 to 30W configurable) is lower than the 45W Ryzen 5 8645HS, which has a higher base clock.
Pros
- Six Zen 4 cores and 12 threads on TSMC 4nm
- Boosts up to 4.9GHz from a 3.5GHz base clock
- Radeon 760M graphics with 8 compute units
- NPU rated up to 16 TOPS for on-device AI features
- Supports Precision Boost Overdrive within a 20 to 30W configurable TDP
Cons
- 3.5GHz base clock is well below the 4.3GHz of the 45W Ryzen 5 8645HS
- 16 TOPS NPU falls below the 40 TOPS Microsoft requires for Copilot+ PCs
- Zen 4 cores are a generation behind AMD's Zen 5 laptop chips
- Speed varies with each laptop's power limit and cooling
Average
Computed from specs & benchmarks via our public methodology.
Full specifications
Everything we track for the AMD Ryzen 5 8640HS
General
- Announced
- 2023
- Process
- 4 nm
- Base TDP
- 28 W
- Max TDP
- 30 W
Cores & Clocks
- Cores
- 6
- Performance cores
- 6
- Threads
- 12
- Base clock
- 3.5 GHz
- Boost clock
- 4.9 GHz
- L3 cache
- 16 MB
Integrated GPU
- iGPU
- AMD Radeon 760M
- iGPU clock
- 2,600 MHz
Memory
- Memory support
- LPDDR5X-7500 / DDR5-5600
- Max memory
- 96 GB
Benchmarks
- Geekbench 6 (single)
- 2,497Bottom 40%
- Geekbench 6 (multi)
- 10,338Bottom 39%
- Cinebench R23 (single)
- 1,711Bottom 38%
- Cinebench R23 (multi)
- 11,486Bottom 41%
- PassMark
- 19,774Bottom 42%
- PassMark (single thread)
- 3,502Bottom 37%
- 3DMark Time Spy Graphics (iGPU)
- 2,281Top 38%
Quick answers
Is the AMD Ryzen 5 8640HS good in 2026?
The AMD Ryzen 5 8640HS earns an Inno Score of 55.1/100 (“Average”) based on its specs and benchmark results. A six-core, 12-thread Zen 4 Hawk Point chip with 3.5 to 4.9GHz clocks, Radeon 760M graphics and a Ryzen AI NPU rated up to 16 TOPS. Its 28W default TDP (20 to 30W configurable) is lower than the 45W Ryzen 5 8645HS, which has a higher base clock.
Does the AMD Ryzen 5 8640HS count as "Core i7 or equivalent"?
Its PassMark CPU Mark average is 19,774 (cpubenchmark.net, retrieved Sep 26–Oct 8, 2026), which puts it in Tier B of our CPU tier checker: recent mainstream Core i7 / Ryzen 7, plus older H-series chips. Requirement pages word this differently, so check the exact wording with your department.
What are the key specs of the AMD Ryzen 5 8640HS?
Cores: 6 · Threads: 12 · Boost clock: 4.9 GHz · Base TDP: 28 W
What are the closest alternatives to the AMD Ryzen 5 8640HS?
Its closest rivals on InnoReviews are AMD Ryzen 7 PRO 250, Intel Core Ultra 5 125H, Intel Core Ultra 5 226V — open the comparison pages for a spec-by-spec breakdown.
