AMD Ryzen 5 7645HX vs AMD Ryzen 5 8640HS

VS

AMD Ryzen 5 7645HX

AMD Ryzen 5 8640HS

We compared two laptop CPUs: AMD Ryzen 5 7645HX with 6 cores 4.0GHz and AMD Ryzen 5 8640HS with 6 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 5 7645HX 's Advantages

Newer PCIe version (5.0 vs 4.0)

Higher base frequency (4.0GHz vs 3.5GHz)

Larger L3 cache size (32MB vs 16MB)

AMD Ryzen 5 8640HS 's Advantages

Released 11 months late

Better graphics card performance

Higher specification of memory (7500 vs 5200)

Larger memory bandwidth (89.6GB/s vs 83.2GB/s)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (28W vs 75W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 7645HX +4%

1800

AMD Ryzen 5 8640HS

1724

Cinebench R23 Multi Core

AMD Ryzen 5 7645HX +7%

13954

AMD Ryzen 5 8640HS

12969

Geekbench 6 Single Core

AMD Ryzen 5 7645HX +19%

2720

AMD Ryzen 5 8640HS

2267

Geekbench 6 Multi Core

AMD Ryzen 5 7645HX +14%

11906

AMD Ryzen 5 8640HS

10369

AMD Ryzen 5 7645HX

VS

AMD Ryzen 5 8640HS

General Parameters

Jan 2023

Release Date

Dec 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Dragon Range)

Core Architecture

Hawk Point

FL1

Socket

FP8

Radeon 610M

Integrated Graphics

Radeon 760M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

-

Transistor Count

25 billions

5 nm

Manufacturing Process

4 nm

45-75 W

Power Consumption

28 W

100°C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

Die Size

178 mm²

CPU Performance

6

Performance Cores

6

12

Performance Core Threads

12

4.0 GHz

Performance Core Base Frequency

3.5 GHz

5 GHz

Performance Core Turbo Frequency

4.9 GHz

6

Total Core Count

6

12

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

35x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

32 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-5200

Memory Types

DDR5-5600, LPDDR5x-7500

64 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

1500 MHz

2200 MHz

GPU Max Dynamic Frequency

2600 MHz

128

Shader Units

384

8

Texture Units

24

4

Raster Operation Units

16

2

Execution Units

6

15 W

Power Consumption

15 W

-

Max Resolution

7680x4320 - 60 Hz

0.49 TFLOPS

Graphics Performance

4.06 TFLOPS

Miscellaneous

AMD Ryzen 5 7645HX

Official Website

AMD Ryzen 5 8640HS

5.0

PCIe Version

4.0

28

PCIe Lanes

20

Related CPU Comparisons

1

AMD Ryzen 5 7645HX vs AMD Ryzen 7 5800H

2

AMD Ryzen 5 7645HX vs Intel Core i7 14700HX

3

AMD Ryzen 5 7645HX vs AMD Ryzen 3 5300U

4

AMD Ryzen 5 7645HX vs Intel Processor U300

5

AMD Ryzen 5 7645HX vs Intel Core i5 13505H

6

AMD Ryzen 5 7645HX vs AMD Ryzen AI 7 Pro 360

7

AMD Ryzen 5 7645HX vs Intel Core i9 13980HX

8

AMD Ryzen 5 7645HX vs Intel Core i7 12800HX

9

AMD Ryzen 5 7645HX vs Intel Core i7 10510U

10

AMD Ryzen 5 7645HX vs Intel Core i5 9300HF

Related News

1

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

2

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

3

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

4

CXMT Reportedly Achieves 80% Yield in DDR5 Production

5

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

6

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

7

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

8

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

9

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

10

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes