AMD Ryzen 5 6600H vs AMD Ryzen 5 7645HX

Last updated:

CPU comparison with benchmarks


AMD Ryzen 5 6600H CPU1 vs CPU2 AMD Ryzen 5 7645HX
AMD Ryzen 5 6600H AMD Ryzen 5 7645HX

CPU comparison

AMD Ryzen 5 6600H or AMD Ryzen 5 7645HX - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD Ryzen 5 6600H has 6 cores with 12 threads and clocks with a maximum frequency of 4.50 GHz. Up to 64 GB of memory is supported in 2 memory channels. The AMD Ryzen 5 6600H was released in Q1/2022.

The AMD Ryzen 5 7645HX has 6 cores with 12 threads and clocks with a maximum frequency of 5.00 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 5 7645HX was released in Q1/2023.
AMD Ryzen 5 (84) Family AMD Ryzen 5 (84)
AMD Ryzen 6000H/7035H (20) CPU group AMD Ryzen 7045 (6)
5 Generation 6
Rembrandt (Zen 3+) Architecture Dragon Range (Zen 4)
Mobile Segment Mobile
AMD Ryzen 5 5600H Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 5 6600H is a 6 core processor with a clock frequency of 3.30 GHz (4.50 GHz). The AMD Ryzen 5 7645HX has 6 CPU cores with a clock frequency of 4.00 GHz (5.00 GHz).
AMD Ryzen 5 6600H Characteristic AMD Ryzen 5 7645HX
6 Cores 6
12 Threads 12
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
3.30 GHz Frequency 4.00 GHz
4.50 GHz Turbo Frequency (1 Core) 5.00 GHz
3.80 GHz Turbo Frequency (All Cores) --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.
AMD Ryzen 5 6600H Characteristic AMD Ryzen 5 7645HX
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
AMD Radeon 660M GPU AMD Radeon 610M
1.40 GHz GPU frequency 0.40 GHz
1.90 GHz GPU (Turbo) 2.20 GHz
9 GPU Generation 9
6 nm Technology 6 nm
3 Max. displays 3
6 Compute units 2
384 Shader 128
Yes Hardware Raytracing Yes
No Frame Generation No
8 GB Max. GPU Memory 8 GB
12 DirectX Version 12

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
AMD Radeon 660M GPU AMD Radeon 610M
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode / Encode Codec VP8 Decode / Encode
Decode Codec AV1 Decode
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD Ryzen 5 6600H supports a maximum of 64 GB of memory in 2 memory channels. The AMD Ryzen 5 7645HX can connect up to 128 GB of memory in 2 memory channels.
AMD Ryzen 5 6600H Characteristic AMD Ryzen 5 7645HX
LPDDR5-6400, DDR5-4800 Memory DDR5-5200
64 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
76.8 GB/s Max. Bandwidth 83.2 GB/s
No ECC Yes
3.00 MB L2 Cache 6.00 MB
16.00 MB L3 Cache 32.00 MB
4.0 PCIe version 5.0
12 PCIe lanes 28
23.6 GB/s PCIe Bandwidth 110.3 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 5 6600H has a TDP of 45 W, that of the AMD Ryzen 5 7645HX is 55 W.
AMD Ryzen 5 6600H Characteristic AMD Ryzen 5 7645HX
45 W TDP (PL1 / PBP) 55 W
-- TDP (PL2) --
54 W TDP up 75 W
35 W TDP down 45 W
95 °C Tjunction max. 100 °C

Technical details

The AMD Ryzen 5 6600H has a 19.00 MB cache, while the AMD Ryzen 5 7645HX cache has a total of 38.00 MB.
AMD Ryzen 5 6600H Characteristic AMD Ryzen 5 7645HX
6 nm Technology 5 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
FP7 Socket FL1
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2022 Release date Q1/2023
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 5 6600H to help other visitors make their purchasing decisions. The average rating is 4.9 stars (7 ratings). Rate now:
Here you can rate the AMD Ryzen 5 7645HX to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
AMD Radeon 660M @ 1.90 GHz
1459 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
AMD Radeon 610M @ 2.20 GHz
443 (30%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
6C 12T @ 4.50 GHz
0 (0%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz
1802 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
6C 12T @ 3.80 GHz
0 (0%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
13824 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
6C 12T @ 4.50 GHz
1472 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz
0 (0%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
6C 12T @ 3.80 GHz
8054 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
0 (0%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
6C 12T @ 4.50 GHz
1886 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz
0 (0%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
6C 12T @ 3.80 GHz
8063 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
0 (0%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
6C 12T @ 3.80 GHz
19080 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
0 (0%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
AMD Ryzen 5 6600H AMD Ryzen 5 6600H
3.30 GHz
0 (0%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
13,824 CB R23 MC @ 51 W
270 (100%)

Devices using this processor
AMD Ryzen 5 6600H AMD Ryzen 5 7645HX
Unknown Unknown

Popular comparisons containing this CPUs

1. Intel Core i5-12500HAMD Ryzen 5 6600H Intel Core i5-12500H vs AMD Ryzen 5 6600H
2. AMD Ryzen 5 6600HAMD Ryzen 7 5800H AMD Ryzen 5 6600H vs AMD Ryzen 7 5800H
3. AMD Ryzen 5 6600HAMD Ryzen 5 5600H AMD Ryzen 5 6600H vs AMD Ryzen 5 5600H
4. Intel Core i5-12450HAMD Ryzen 5 6600H Intel Core i5-12450H vs AMD Ryzen 5 6600H
5. AMD Ryzen 7 6800HAMD Ryzen 5 6600H AMD Ryzen 7 6800H vs AMD Ryzen 5 6600H
6. AMD Ryzen 5 6600HIntel Core i5-11400H AMD Ryzen 5 6600H vs Intel Core i5-11400H
7. AMD Ryzen 5 6600HIntel Core i7-12700H AMD Ryzen 5 6600H vs Intel Core i7-12700H
8. AMD Ryzen 5 6600HAMD Ryzen 5 5600G AMD Ryzen 5 6600H vs AMD Ryzen 5 5600G
9. AMD Ryzen 5 6600HIntel Core i7-12650H AMD Ryzen 5 6600H vs Intel Core i7-12650H
10. AMD Ryzen 5 7535HSAMD Ryzen 5 6600H AMD Ryzen 5 7535HS vs AMD Ryzen 5 6600H


back to index