AMD Ryzen 9 7940H vs AMD Ryzen 9 7945HX3D processor comparison: performance score, cores and clock speeds, cache, TDP, integrated graphics and NPU. The better value in each row is highlighted in green.
Summary
AMD Ryzen 9 7940H offers a smaller manufacturing process (4 nm vs 5 nm) and more integrated graphics units (12 vs 2). AMD Ryzen 9 7945HX3D offers more cores (16 vs 8), more threads (32 vs 16), a higher clock speed (5.4 GHz vs 5.2 GHz), more L3 cache (128 MB vs 16 MB), and a newer PCIe version (5.0 vs 4.0).
Performance score
0
Coming soon
0
Coming soon
Key specs
Cores & Threads8/16
Cores & Threads16/32
Turbo5.2 GHz
Turbo5.4 GHz
L3 cache16 MB
L3 cache128 MB
TDPN/A
TDP55 W
iGPUAMD Radeon 780M
iGPUAMD Radeon 610M
General
SeriesRyzen 7000
SeriesRyzen 7000
CodenamePhoenix
CodenameDragon Range
CPU architectureZen 4
CPU architectureZen 4
FoundryTSMC
FoundryTSMC
Process node4 nm
Process node5 nm
Instruction setx86-64
Instruction setx86-64
Release dateJanuary 4, 2023
Release dateJuly 27, 2023
Cores and clocks
Cores & Threads8/16
Cores & Threads16/32
8× Zen 4
- Turbo clock
- 5.2 GHz
- Base clock
- 4.0 GHz
16× Zen 4
- Turbo clock
- 5.4 GHz
- Base clock
- 2.3 GHz
Cache
L3 cache16 MB
L3 cache128 MB
L2 cache8 MB
L2 cache16 MB
L1 cache512 KB
L1 cache1024 KB
TDP
TDPN/A
TDP55 W
cTDP35 - 54 W
cTDP55 - 75 W
Max temperature100 °C
Max temperature89 °C
Connectivity
Memory supportLPDDR5x-7500DDR5-5600
Memory supportDDR5-5200
Memory channels2
Memory channels2
PCIe version4.0
PCIe version5.0
PCIe lanes20
PCIe lanes28
Graphics
ModelAMD Radeon 780M
ModelAMD Radeon 610M
iGPU architectureRDNA 3
iGPU architectureRDNA 2
Compute units12
Compute units2
Clock2800 MHz
Clock2200 MHz
AI
Total TOPSN/A
No NPU
NPU TOPS10
iGPU TOPSN/A