AMD Ryzen 9 9955HX vs AMD Ryzen 9 7940HX Full Specs

Summary

16 Cores 32 Threads 2.5GHz	16 Cores 32 Threads 2.4GHz
TDP 65W	TDP 55W
Bandwidth 89.6GB/s DDR5	Bandwidth 83.2GB/s DDR5
iGPU Radeon 610M 2200MHz	iGPU Radeon 610M 2200MHz
Peak·FP32·FP16 1.13 TFLOPSFP16	Peak·FP32·FP16 1.13 TFLOPSFP16
Socket FL1	Socket FL1

Core Config

16 Cores	16 Cores
32 Threads	32 Threads

Clocks

Base Clock 2.5GHz	Base Clock 2.4GHz
Boost Clock 5.4GHz	Boost Clock 5.2GHz
Overclocking Unlocked	Overclocking Unlocked

Cache

L1i 32KB	L1i 32KB
L1d 48KB	L1d 32KB
L2 1MB	L2 1MB
L3 64MB	L3 64MB

Memory

Type DDR5	Type DDR5
Max Memory 96GB	Max Memory 64GB
ECC No	ECC No
Channels 2	Channels 2
Bus Width 128-bit	Bus Width 128-bit
Speed 5600MT/s	Speed 5200MT/s
Bandwidth 89.6GB/s	Bandwidth 83.2GB/s
Bandwidth Calculator Channels Transfer Rate5600MT/s UC·Spec·OC 89.6GB/s	Bandwidth Calculator Channels Transfer Rate5200MT/s UC·Spec·OC 83.2GB/s

Power & Thermals

TDP 65W	TDP 55W
cTDP-down 55W	cTDP-down 45W
cTDP-up 75W	cTDP-up 75W
Max Operating Temp 95°C Max	Max Operating Temp 100°C Max
Included Cooler 0	Included Cooler -

Chipset Bus

Bus Type PCIe	Bus Type PCIe
Bus Config 8 lanes	Bus Config 4 lanes
Bus Speed 32GT/s	Bus Speed 32GT/s
Bus Bandwidth 32GB/s	Bus Bandwidth 16GB/s

Expansion

PCIe PCIe 5.0 x24 94.5GB/sBandwidth

PCIe PCIe 5.0 x28 110.3GB/sBandwidth

iGPU

iGPU Radeon 610M 2200MHz	iGPU Radeon 610M 2200MHz
Shaders 128	Shaders 128
Boost Clock 2.2GHz	Boost Clock 2.2GHz
Peak·FP32·FP16 1.13 TFLOPSFP16	Peak·FP32·FP16 1.13 TFLOPSFP16

Chip

Manufacturer AMD	Manufacturer AMD
ISA x86-64	ISA x86-64
Architecture Zen 5	Architecture Zen 4
Family Ryzen 9000	Family Ryzen 7000
Branding	Branding
Codename Fire Range EldoraDie Fire Range 2CCDVariant Zen 5P-Core	Codename Dragon Range DurangoDie Dragon Range 2CCDVariant -
Market Segment Laptop	Market Segment Laptop
Release Date Jan 6, 2025	Release Date Jan 17, 2024

Fabrication

Foundry TSMC	Foundry TSMC
Other Foundries TSMCIO	Other Foundries TSMCIO
Fabrication Node N4X N6IO	Fabrication Node N5 N6IO
Die Size 141mm² 122mm²IO	Die Size 142mm² 122mm²IO
Transistor Count 16.6 Billion 3.4 BillionIO	Transistor Count 13.1 Billion 3.4 BillionIO
Transistor Density 118 MTr/mm² 28 MTr/mm²IO	Transistor Density 93 MTr/mm² 28 MTr/mm²IO

Images

Competitors

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