AMD Ryzen 7 7840U vs AMD Ryzen 9 7845HX Full Specs

Summary

8 Cores 16 Threads 3.3GHz	12 Cores 24 Threads 3GHz
TDP 28W	TDP 55W
Bandwidth 120GB/s LPDDR5X·DDR5	Bandwidth 83.2GB/s DDR5
iGPU Radeon 780M 2700MHz	iGPU Radeon 610M 2200MHz
Peak·FP32·FP16 8.29 TFLOPSFP16	Peak·FP32·FP16 1.13 TFLOPSFP16
Socket FP8	Socket FL1

Highlights

Geekbench 6 Single

Geekbench 6 Single Geekbench 6 Multi Max Bandwidth iGPU Peak iGPU FP32 iGPU FP16 NPU TOPS TDP

Ryzen 7 7840U2,304

x1

Ryzen 9 7845HX2,736

x1.19

Show Top Score

Core Config

8 Cores	12 Cores
16 Threads	24 Threads

Clocks

Base Clock 3.3GHz	Base Clock 3GHz
Boost Clock 5.1GHz	Boost Clock 5.2GHz
Overclocking Locked	Overclocking Unlocked

Cache

L1i 32KB	L1i 32KB
L1d 32KB	L1d 32KB
L2 1MB	L2 1MB
L3 16MB	L3 64MB

Memory

Type LPDDR5X·DDR5	Type DDR5
Max Memory 256GB	Max Memory 64GB
ECC No	ECC No
Channels 2	Channels 2
Bus Width 128-bit	Bus Width 128-bit
Speed 7500MT/s	Speed 5200MT/s
Bandwidth 120GB/s	Bandwidth 83.2GB/s
Bandwidth Calculator Channels Transfer Rate7500MT/s Calculated Bandwidth 120GB/s	Bandwidth Calculator Channels Transfer Rate5200MT/s Calculated Bandwidth 83.2GB/s

Power & Thermals

TDP 28W	TDP 55W
cTDP-down 15W	cTDP-down 45W
cTDP-up 30W	cTDP-up 75W
Max Operating Temp 100°C Max	Max Operating Temp 100°C Max

Chipset Bus

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

Expansion

PCIe PCIe 4.0 x20 39.4GB/sBandwidth

PCIe PCIe 5.0 x28 110.3GB/sBandwidth

iGPU

iGPU Radeon 780M 2700MHz	iGPU Radeon 610M 2200MHz
Shaders 768	Shaders 128
Boost Clock 2.7GHz	Boost Clock 2.2GHz
Peak·FP32·FP16 8.29 TFLOPSFP16	Peak·FP32·FP16 1.13 TFLOPSFP16

NPU

NPU Model Ryzen AI	NPU Model -
Performance 10 TOPS	Performance -

Chip

Manufacturer AMD	Manufacturer AMD
ISA x86-64	ISA x86-64
Architecture Zen 4	Architecture Zen 4
Family Ryzen 7000	Family Ryzen 7000
Branding	Branding
Codename Phoenix Point - -	Codename Dragon Range DurangoDie Dragon Range 2CCDVariant
Market Segment Laptop	Market Segment Laptop
Release Date May 3, 2023	Release Date Jan 4, 2023

Fabrication

Foundry TSMC	Foundry TSMC
Other Foundries -	Other Foundries TSMCIO
Fabrication Node N4 -	Fabrication Node N5 N6IO
Die Size 178mm² -	Die Size 142mm² 122mm²IO
Transistor Count 25 Billion -	Transistor Count 13.1 Billion 3.4 BillionIO
Transistor Density 140 MTr/mm² -	Transistor Density 93 MTr/mm² 28 MTr/mm²IO

Images

No images available

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Used In

Laptops Framework 13(AMD, Early 2023)

Laptops Alienware m16(R1 AMD, Early 2023)Alienware m18(R1 AMD, Early 2023)

Competitors

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AMDRyzen 9 7845HX vs CPU AMDRyzen AI Max 390 AMDRyzen 9 7845HX vs CPU AMDRyzen AI Max 385 AMDRyzen 9 7845HX vs CPU AMDRyzen AI Max+ 395 Show 12 more