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AMD Ryzen 5 8640U vs AMD Ryzen AI 7 345

AMD Ryzen 5 8640U
54.3Inno Score
VS
WINNER
AMD Ryzen AI 7 345
54.4Inno Score
57.8Single-core62.5
41.3Multi-core40.8
73.5Efficiencyspec-based73.5
65.1iGPU54.5
52.5Platformspec-based53.5
7 spec wins — AMD Ryzen 5 8640U7 spec wins — AMD Ryzen AI 7 345

InnoReviews verdict

This one is close to a dead heat: AMD Ryzen 5 8640U scores 54.3 against 54.4 for AMD Ryzen AI 7 345. Pick by the categories that matter to you — AMD Ryzen AI 7 345 edges ahead in single-core, or by price.

Which would you pick?

Key differences

Reasons to pick the AMD Ryzen 5 8640U

  • Stronger iGPU score: 65 vs 55
  • 200% higher Performance cores: 6 vs 2
  • 100% higher L3 cache: 16 MB vs 8 MB
  • 75% higher Base clock: 3.5 GHz vs 2 GHz
  • 61% higher 3DMark Time Spy Graphics (iGPU): 2,281 vs 1,415

Reasons to pick the AMD Ryzen AI 7 345

  • Stronger single-core score: 63 vs 58
  • 167% higher Max memory: 256 GB vs 96 GB
  • 80% higher Max TDP: 54 W vs 30 W
  • 11% higher PassMark (single thread): 3,843 vs 3,459
  • 10% higher Cinebench R23 (single): 1,818 vs 1,651

General

General comparison: AMD Ryzen 5 8640U versus AMD Ryzen AI 7 345
SpecAMD Ryzen 5 8640UAMD Ryzen AI 7 345
Announced20232026
Process4 nm4 nm
Base TDP28 W28 W
Max TDP30 W54 W+80%

Cores & Clocks

Cores & Clocks comparison: AMD Ryzen 5 8640U versus AMD Ryzen AI 7 345
SpecAMD Ryzen 5 8640UAMD Ryzen AI 7 345
Cores66
Performance cores6+200%2
Efficiency cores—4
Threads1212
Base clock3.5 GHz+75%2 GHz
Boost clock4.9 GHz+7%4.6 GHz
L3 cache16 MB+100%8 MB

Integrated GPU

Integrated GPU comparison: AMD Ryzen 5 8640U versus AMD Ryzen AI 7 345
SpecAMD Ryzen 5 8640UAMD Ryzen AI 7 345
iGPUAMD Radeon 760MAMD Radeon 840M
iGPU clock2,600 MHz2,900 MHz

Memory

Memory comparison: AMD Ryzen 5 8640U versus AMD Ryzen AI 7 345
SpecAMD Ryzen 5 8640UAMD Ryzen AI 7 345
Memory supportLPDDR5X-7500 / DDR5-5600LPDDR5X-8000 / DDR5-5600
Max memory96 GB256 GB+167%

Benchmarks

Benchmarks comparison: AMD Ryzen 5 8640U versus AMD Ryzen AI 7 345
SpecAMD Ryzen 5 8640UAMD Ryzen AI 7 345
Geekbench 6 (single)2,464Bottom 36%2,604+6%Top 47%
Geekbench 6 (multi)9,903+9%Bottom 34%9,100Bottom 27%
Cinebench R23 (single)1,651Bottom 33%1,818+10%Top 41%
Cinebench R23 (multi)10,433Bottom 33%11,461+10%Bottom 40%
PassMark19,859+2%Bottom 43%19,466Bottom 39%
PassMark (single thread)3,459Bottom 33%3,843+11%Top 37%
3DMark Time Spy Graphics (iGPU)2,281+61%Top 38%1,415Bottom 36%

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