AMD Ryzen 5 7645HX vs Samsung Exynos 1280

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CPU comparison with benchmarks


AMD Ryzen 5 7645HX CPU1 vs CPU2 Samsung Exynos 1280
AMD Ryzen 5 7645HX Samsung Exynos 1280

CPU comparison

In this CPU comparison, we compare the AMD Ryzen 5 7645HX and the Samsung Exynos 1280 and use benchmarks to check which processor is faster.

We compare the AMD Ryzen 5 7645HX 6 core processor released in Q1/2023 with the Samsung Exynos 1280 which has 8 CPU cores and was introduced in Q1/2022.
AMD Ryzen 5 (86) Family Samsung Exynos (47)
AMD Ryzen 7045 (6) CPU group Samsung Exynos 1280 (1)
6 Generation 6
Dragon Range (Zen 4) Architecture Cortex-A78/-A55
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 5 7645HX is a 6 core processor with a clock frequency of 4.00 GHz (5.00 GHz). The processor can compute 12 threads at the same time. The Samsung Exynos 1280 clocks with 2.40 GHz, has 8 CPU cores and can calculate 8 threads in parallel.

AMD Ryzen 5 7645HX Characteristic Samsung Exynos 1280
6 Cores 8
12 Threads 8
normal Core architecture hybrid (big.LITTLE)
Yes Hyperthreading No
Yes Overclocking ? No
4.00 GHz (5.00 GHz)
6x Zen 4
A-Core 2.40 GHz
2x Cortex-A78
-- B-Core 2.00 GHz
6x Cortex-A55

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD Ryzen 5 7645HX Characteristic Samsung Exynos 1280
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

AMD Radeon 610M GPU ARM Mali-G68 MP4
0.40 GHz GPU frequency --
2.20 GHz GPU (Turbo) --
9 GPU Generation Vallhall 2
6 nm Technology 6 nm
3 Max. displays 1
2 Compute units 4
128 Shader 64
Yes Hardware Raytracing No
No Frame Generation No
8 GB Max. GPU Memory --
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 610M GPU ARM Mali-G68 MP4
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 / Encode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 128 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 5 7645HX, while the Samsung Exynos 1280 supports a maximum of GB of memory with a maximum memory bandwidth of -- enabled.

AMD Ryzen 5 7645HX Characteristic Samsung Exynos 1280
DDR5-5200 Memory LPDDR4X
128 GB Max. Memory
2 (Dual Channel) Memory channels 4 (Quad Channel)
83.2 GB/s Max. Bandwidth --
Yes ECC No
6.00 MB L2 Cache --
32.00 MB L3 Cache --
5.0 PCIe version --
28 PCIe lanes --
110.3 GB/s PCIe Bandwidth --

Thermal Management

The AMD Ryzen 5 7645HX has a TDP of 55 W. The TDP of the Samsung Exynos 1280 is --. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen 5 7645HX Characteristic Samsung Exynos 1280
55 W TDP (PL1 / PBP) --
-- TDP (PL2) --
75 W TDP up --
45 W TDP down --
100 °C Tjunction max. --

Technical details

The AMD Ryzen 5 7645HX has 38.00 MB cache and is manufactured in 5 nm. The cache of Samsung Exynos 1280 is at 0.00 MB. The processor is manufactured in 5 nm.

AMD Ryzen 5 7645HX Characteristic Samsung Exynos 1280
5 nm Technology 5 nm
Chiplet Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) Armv8-A (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 ISA extensions --
FL1 Socket --
AMD-V, SVM Virtualization None
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Android
Q1/2023 Release date Q1/2022
-- Release price --
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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:
Here you can rate the Samsung Exynos 1280 to help other visitors make their purchasing decisions. The average rating is 4.3 stars (14 ratings). Rate now:


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 7645HX AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz
1802 (100%)
Samsung Exynos 1280 Samsung Exynos 1280
8C 8T @ 2.40 GHz
0 (0%)

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 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
13824 (100%)
Samsung Exynos 1280 Samsung Exynos 1280
8C 8T @ 2.40 GHz
0 (0%)

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 7645HX AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz
0 (0%)
Samsung Exynos 1280 Samsung Exynos 1280
8C 8T @ 2.40 GHz
741 (100%)

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 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
0 (0%)
Samsung Exynos 1280 Samsung Exynos 1280
8C 8T @ 2.40 GHz
1855 (100%)

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 7645HX AMD Ryzen 5 7645HX
6C 12T @ 5.00 GHz
0 (0%)
Samsung Exynos 1280 Samsung Exynos 1280
8C 8T @ 2.40 GHz
845 (100%)

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 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
0 (0%)
Samsung Exynos 1280 Samsung Exynos 1280
8C 8T @ 2.40 GHz
1829 (100%)

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 7645HX AMD Ryzen 5 7645HX
AMD Radeon 610M @ 2.20 GHz
443 (100%)
Samsung Exynos 1280 Samsung Exynos 1280
ARM Mali-G68 MP4 @ 0.00 GHz
0 (0%)

AnTuTu 9 Benchmark

The AnTuTu 9 benchmark is very well suited to measuring the performance of a smartphone. AnTuTu 9 is quite heavy on 3D graphics and can now also use the "Metal" graphics interface. In AnTuTu, memory and UX (user experience) are also tested by simulating browser and app usage. AnTuTu version 9 can compare any ARM CPU running on Android or iOS. Devices may not be directly comparable when benchmarked on different operating systems.

In the AnTuTu 9 benchmark, the single-core performance of a processor is only slightly weighted. The rating is made up of the multi-core performance of the processor, the speed of the working memory, and the performance of the internal graphics.
AMD Ryzen 5 7645HX AMD Ryzen 5 7645HX
6C 12T @ 4.00 GHz
0 (0%)
Samsung Exynos 1280 Samsung Exynos 1280
8C 8T @ 2.40 GHz
419640 (100%)

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 7645HX AMD Ryzen 5 7645HX
13,824 CB R23 MC @ 51 W
270 (100%)
Samsung Exynos 1280 Samsung Exynos 1280
2.40 GHz
0 (0%)

Devices using this processor

AMD Ryzen 5 7645HX Samsung Exynos 1280
Unknown Unknown

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