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InnoReviews

AMD Ryzen 5 8645HS vs AMD Ryzen 7 8840U

AMD Ryzen 5 8645HS
55.4Inno Score
VS
WINNER
AMD Ryzen 7 8840U
57.4Inno Score
59.3Single-core62.9
44.1Multi-core44.2
65.4Efficiencyspec-based73.5
64.9iGPU68.5
58.8Platformspec-based55.5
5 spec wins — AMD Ryzen 5 8645HS7 spec wins — AMD Ryzen 7 8840U

InnoReviews verdict

AMD Ryzen 7 8840U wins this laptop processor face-off, 57.4 to 55.4, pulling ahead mainly in single-core (+4) and iGPU (+4). AMD Ryzen 5 8645HS still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the AMD Ryzen 5 8645HS

  • 167% higher Max memory: 256 GB vs 96 GB
  • 80% higher Max TDP: 54 W vs 30 W
  • 30% higher Base clock: 4.3 GHz vs 3.3 GHz

Reasons to pick the AMD Ryzen 7 8840U

  • Stronger single-core score: 63 vs 59
  • Stronger iGPU score: 69 vs 65
  • 33% higher cores: 8 vs 6
  • 33% higher Performance cores: 8 vs 6
  • 33% higher threads: 16 vs 12

General

General comparison: AMD Ryzen 5 8645HS versus AMD Ryzen 7 8840U
SpecAMD Ryzen 5 8645HSAMD Ryzen 7 8840U
Announced20232023
Process4 nm4 nm
Base TDP35 W28 W+20%
Max TDP54 W+80%30 W

Cores & Clocks

Cores & Clocks comparison: AMD Ryzen 5 8645HS versus AMD Ryzen 7 8840U
SpecAMD Ryzen 5 8645HSAMD Ryzen 7 8840U
Cores68+33%
Performance cores68+33%
Threads1216+33%
Base clock4.3 GHz+30%3.3 GHz
Boost clock5 GHz5.1 GHz+2%
L3 cache16 MB16 MB

Integrated GPU

Integrated GPU comparison: AMD Ryzen 5 8645HS versus AMD Ryzen 7 8840U
SpecAMD Ryzen 5 8645HSAMD Ryzen 7 8840U
iGPUAMD Radeon 760MAMD Radeon 780M
iGPU clock2,600 MHz2,700 MHz

Memory

Memory comparison: AMD Ryzen 5 8645HS versus AMD Ryzen 7 8840U
SpecAMD Ryzen 5 8645HSAMD Ryzen 7 8840U
Memory supportLPDDR5X-7500 / DDR5-5600DDR5-5600 / LPDDR5X-7500
Max memory256 GB+167%96 GB

Benchmarks

Benchmarks comparison: AMD Ryzen 5 8645HS versus AMD Ryzen 7 8840U
SpecAMD Ryzen 5 8645HSAMD Ryzen 7 8840U
Geekbench 6 (single)2,520Top 49%—
Geekbench 6 (multi)10,300Bottom 41%—
Cinebench R23 (single)1,700+5%Top 48%1,619Bottom 43%
Cinebench R23 (multi)13,000+7%Top 47%12,191Bottom 50%
PassMark21,977Top 45%23,390+6%Top 40%
3DMark Time Spy Graphics (iGPU)2,260Top 32%2,659+18%Top 22%

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