AMD Ryzen 5 PRO 8640U vs AMD Ryzen 5 7645HX

VS

AMD Ryzen 5 PRO 8640U

AMD Ryzen 5 7645HX

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

Main Differences

AMD Ryzen 5 PRO 8640U 's Advantages

Released 1 years and 3 months late

Higher specification of memory (5600 vs 5200)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (28W vs 75W)

AMD Ryzen 5 7645HX 's Advantages

Integrated graphics card

Newer PCIe version (5.0 vs 4)

Higher base frequency (4.0GHz vs 3.5GHz)

Larger L3 cache size (32MB vs 16MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 5 PRO 8640U

1552

AMD Ryzen 5 7645HX +15%

1800

Cinebench R23 Multi Core

AMD Ryzen 5 PRO 8640U

10675

AMD Ryzen 5 7645HX +30%

13954

Geekbench 6 Single Core

AMD Ryzen 5 PRO 8640U

2519

AMD Ryzen 5 7645HX +7%

2720

Geekbench 6 Multi Core

AMD Ryzen 5 PRO 8640U

10308

AMD Ryzen 5 7645HX +15%

11906

AMD Ryzen 5 PRO 8640U

VS

AMD Ryzen 5 7645HX

General Parameters

Apr 2024

Release Date

Jan 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

-

Instruction Set

x86-64

Hawk Point

Core Architecture

Zen 4 (Dragon Range)

AMD Socket FP7

Socket

FL1

Radeon 760M

Integrated Graphics

Radeon 610M

Ryzen 5 (Zen 4 (Hawk Point))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

5 nm

28 W

Power Consumption

45-75 W

-

Peak Operating Temperature

100°C

TSMC

Foundry

-

178 mm²

Die Size

-

CPU Performance

-

Performance Cores

6

-

Performance Core Threads

12

3.5 GHz

Performance Core Base Frequency

4.0 GHz

4.9 GHz

Performance Core Turbo Frequency

5 GHz

6

Total Core Count

6

12

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

35.0

Multiplier

40x

64 KB per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

1

SMP

-

Memory Parameters

DDR5-5600

Memory Types

DDR5-5200

-

Max Memory Size

64 GB

2

Max Memory Channels

2

-

Max Memory Bandwidth

83.2 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

-

GPU Max Dynamic Frequency

2200 MHz

-

Shader Units

128

-

Texture Units

8

-

Raster Operation Units

4

-

Execution Units

2

-

Power Consumption

15 W

-

Graphics Performance

0.49 TFLOPS

Miscellaneous

-

Official Website

AMD Ryzen 5 7645HX

4

PCIe Version

5.0

20

PCIe Lanes

28

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