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AMD Ryzen 9 7900X3D vs AMD Ryzen 9 9900X3D

AMD Ryzen 9 7900X3D
80.8Inno Score
VS
WINNER
AMD Ryzen 9 9900X3D
91.1Inno Score
77.8Single-core94.9
75.2Multi-core87
94.4Gamingspec-based93.8
1 spec wins — AMD Ryzen 9 7900X3D8 spec wins — AMD Ryzen 9 9900X3D

InnoReviews verdict

AMD Ryzen 9 9900X3D wins this desktop processor face-off, 91.1 to 80.8, pulling ahead mainly in single-core (+17) and multi-core (+12). AMD Ryzen 9 7900X3D 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 9 7900X3D

No decisive spec advantages — this side competes on price and preference.

Reasons to pick the AMD Ryzen 9 9900X3D

  • Stronger single-core score: 95 vs 78
  • Stronger multi-core score: 87 vs 75
  • 100% higher Max memory: 256 GB vs 128 GB
  • 20% lower process: 4 nm vs 5 nm
  • 15% higher Geekbench 6 (multi): 20,889 vs 18,128

General

General comparison: AMD Ryzen 9 7900X3D versus AMD Ryzen 9 9900X3D
SpecAMD Ryzen 9 7900X3DAMD Ryzen 9 9900X3D
Announced20232025
SocketAM5AM5
Process5 nm4 nm+20%
Base TDP120 W120 W
Max turbo power162 W—
Unlocked multiplierNoYes
Cooler includedNoNo

Cores & Clocks

Cores & Clocks comparison: AMD Ryzen 9 7900X3D versus AMD Ryzen 9 9900X3D
SpecAMD Ryzen 9 7900X3DAMD Ryzen 9 9900X3D
Cores1212
Performance cores1212
Efficiency cores00
Threads2424
Base clock4.4 GHz4.4 GHz
Boost clock5.6 GHz+2%5.5 GHz
L2 cache12 MB12 MB
L3 cache128 MB128 MB

Integrated GPU

Integrated GPU comparison: AMD Ryzen 9 7900X3D versus AMD Ryzen 9 9900X3D
SpecAMD Ryzen 9 7900X3DAMD Ryzen 9 9900X3D
iGPUAMD Radeon GraphicsAMD Radeon Graphics (2 CU RDNA 2)
iGPU clock2,200 MHz2,200 MHz

Memory

Memory comparison: AMD Ryzen 9 7900X3D versus AMD Ryzen 9 9900X3D
SpecAMD Ryzen 9 7900X3DAMD Ryzen 9 9900X3D
Memory supportDDR5-5200DDR5-5600
Max memory128 GB256 GB+100%
Memory channels22

Platform

Platform comparison: AMD Ryzen 9 7900X3D versus AMD Ryzen 9 9900X3D
SpecAMD Ryzen 9 7900X3DAMD Ryzen 9 9900X3D
PCIe version55
CPU PCIe lanes2828

Benchmarks

Benchmarks comparison: AMD Ryzen 9 7900X3D versus AMD Ryzen 9 9900X3D
SpecAMD Ryzen 9 7900X3DAMD Ryzen 9 9900X3D
Geekbench 6 (single)3,020Top 19%3,388+12%Top 3%
Geekbench 6 (multi)18,128Top 20%20,889+15%Top 10%
Cinebench R23 (single)1,908Top 32%—
Cinebench R23 (multi)26,747Top 21%—
PassMark50,198Top 13%56,050+12%Top 10%
PassMark (single thread)4,118Top 26%4,628+12%Top 11%

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