AMD A10-7870K vs AMD Ryzen 5 7645HX

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CPU comparison with benchmarks


AMD A10-7870K CPU1 vs CPU2 AMD Ryzen 5 7645HX
AMD A10-7870K AMD Ryzen 5 7645HX

CPU comparison

AMD A10-7870K 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 A10-7870K has 4 cores with 4 threads and clocks with a maximum frequency of 4.10 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A10-7870K was released in Q2/2015.

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 A (112) Family AMD Ryzen 5 (85)
AMD A10-7000 (7) CPU group AMD Ryzen 7045 (6)
4 Generation 6
Kaveri (Steamroller) Architecture Dragon Range (Zen 4)
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A10-7870K has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A10-7870K is 3.90 GHz (4.10 GHz) while the AMD Ryzen 5 7645HX has 6 CPU cores and 12 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 5 7645HX is at 4.00 GHz (5.00 GHz).
AMD A10-7870K Characteristic AMD Ryzen 5 7645HX
4 Cores 6
4 Threads 12
normal Core architecture normal
No Hyperthreading Yes
Yes Overclocking ? Yes
3.90 GHz Frequency 4.00 GHz
4.10 GHz Turbo Frequency (1 Core) 5.00 GHz
4.10 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 A10-7870K Characteristic AMD Ryzen 5 7645HX
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A10-7870K or AMD Ryzen 5 7645HX has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
AMD Radeon R7 - 512 (Kaveri) GPU AMD Radeon 610M
0.86 GHz GPU frequency 0.40 GHz
-- GPU (Turbo) 2.20 GHz
6 GPU Generation 9
28 nm Technology 6 nm
2 Max. displays 3
8 Compute units 2
512 Shader 128
No Hardware Raytracing Yes
No Frame Generation No
2 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 R7 - 512 (Kaveri) GPU AMD Radeon 610M
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 Decode
Decode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD A10-7870K can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 34.2 GB/s. The AMD Ryzen 5 7645HX supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 83.2 GB/s.
AMD A10-7870K Characteristic AMD Ryzen 5 7645HX
DDR3-2133 Memory DDR5-5200
Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
34.2 GB/s Max. Bandwidth 83.2 GB/s
Yes ECC Yes
-- L2 Cache 6.00 MB
4.00 MB L3 Cache 32.00 MB
3.0 PCIe version 5.0
16 PCIe lanes 28
15.8 GB/s PCIe Bandwidth 110.3 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD A10-7870K is 95 W, while the AMD Ryzen 5 7645HX has a TDP of 55 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD A10-7870K Characteristic AMD Ryzen 5 7645HX
95 W TDP (PL1 / PBP) 55 W
-- TDP (PL2) --
-- TDP up 75 W
-- TDP down 45 W
-- Tjunction max. 100 °C

Technical details

The AMD A10-7870K is manufactured in 28 nm and has 4.00 MB cache. The AMD Ryzen 5 7645HX is manufactured in 5 nm and has a 38.00 MB cache.
AMD A10-7870K Characteristic AMD Ryzen 5 7645HX
28 nm Technology 5 nm
Unknown Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
FM2+ Socket FL1
AMD-V Virtualization AMD-V, SVM
Yes AES-NI Yes
Operating systems Windows 10, Windows 11, Linux
Q2/2015 Release date Q1/2023
135 $ Release price --
show more data show more data


Rate these processors

Here you can rate the AMD A10-7870K to help other visitors make their purchasing decisions. The average rating is 4.0 stars (1 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 A10-7870K AMD A10-7870K
AMD Radeon R7 - 512 (Kaveri) @ 0.86 GHz
887 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
AMD Radeon 610M @ 2.20 GHz
443 (50%)

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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
526 (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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
1603 (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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
4682 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
66 (100%)
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz
0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
250 (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 A10-7870K AMD A10-7870K
3.90 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 A10-7870K AMD Ryzen 5 7645HX
Unknown Unknown

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