AMD Ryzen 5 8645HS vs AMD Ryzen 5 PRO 3400GE

Last updated:

CPU comparison with benchmarks


AMD Ryzen 5 8645HS CPU1 vs CPU2 AMD Ryzen 5 PRO 3400GE
AMD Ryzen 5 8645HS AMD Ryzen 5 PRO 3400GE

CPU comparison

AMD Ryzen 5 8645HS or AMD Ryzen 5 PRO 3400GE - 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 8645HS has 6 cores with 12 threads and clocks with a maximum frequency of 5.00 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 5 8645HS was released in Q1/2024.

The AMD Ryzen 5 PRO 3400GE has 4 cores with 8 threads and clocks with a maximum frequency of 4.00 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The AMD Ryzen 5 PRO 3400GE was released in Q3/2019.
AMD Ryzen 5 (86) Family AMD Ryzen 5 PRO (28)
AMD Ryzen 8040 (20) CPU group AMD Ryzen 3000G (8)
7 Generation 2
Hawk Point (Zen 4) Architecture Picasso (Zen+)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 5 8645HS has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the AMD Ryzen 5 8645HS is 4.30 GHz (5.00 GHz) while the AMD Ryzen 5 PRO 3400GE has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 5 PRO 3400GE is at 3.30 GHz (4.00 GHz).

AMD Ryzen 5 8645HS Characteristic AMD Ryzen 5 PRO 3400GE
6 Cores 4
12 Threads 8
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
4.30 GHz Frequency 3.30 GHz
5.00 GHz Turbo Frequency (1 Core) 4.00 GHz
-- Turbo Frequency (All Cores) --

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 8645HS Characteristic AMD Ryzen 5 PRO 3400GE
AMD Ryzen™ AI AI hardware --
AMD Ryzen™ AI (XDNA) @ 16 TOPS AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The AMD Ryzen 5 8645HS or AMD Ryzen 5 PRO 3400GE 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 760M GPU AMD Radeon RX Vega 11 (Raven Ridge)
0.80 GHz GPU frequency 1.30 GHz
2.60 GHz GPU (Turbo) --
10 GPU Generation 8
4 nm Technology 14 nm
4 Max. displays 3
8 Compute units 11
512 Shader 704
Yes Hardware Raytracing No
AMD FSR Frame Generation No
32 GB Max. GPU Memory 2 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 760M GPU AMD Radeon RX Vega 11 (Raven Ridge)
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 Codec VP9 Decode / Encode
Decode Codec VP8 Decode / Encode
Decode / Encode Codec AV1 No
Decode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD Ryzen 5 8645HS can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The AMD Ryzen 5 PRO 3400GE supports up to 64 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 46.9 GB/s.

AMD Ryzen 5 8645HS Characteristic AMD Ryzen 5 PRO 3400GE
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 Memory DDR4-2933
256 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 46.9 GB/s
Yes ECC Yes
6.00 MB L2 Cache 2.00 MB
16.00 MB L3 Cache 4.00 MB
4.0 PCIe version 3.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 19.7 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD Ryzen 5 8645HS is 45 W, while the AMD Ryzen 5 PRO 3400GE has a TDP of 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD Ryzen 5 8645HS Characteristic AMD Ryzen 5 PRO 3400GE
45 W TDP (PL1 / PBP) 35 W
-- TDP (PL2) --
54 W TDP up --
35 W TDP down 25 W
100 °C Tjunction max. 95 °C

Technical details

The AMD Ryzen 5 8645HS is manufactured in 4 nm and has 22.00 MB cache. The AMD Ryzen 5 PRO 3400GE is manufactured in 12 nm and has a 6.00 MB cache.

AMD Ryzen 5 8645HS Characteristic AMD Ryzen 5 PRO 3400GE
4 nm Technology 12 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
FP8 Socket AM4 (PGA 1331)
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2024 Release date Q3/2019
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 5 8645HS to help other visitors make their purchasing decisions. The average rating is 4.2 stars (9 ratings). Rate now:
Here you can rate the AMD Ryzen 5 PRO 3400GE to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD Ryzen 5 8645HS (100%)
AMD Ryzen 5 PRO 3400GE (47%)
⌀ Multi core performance in 2 CPU benchmarks
AMD Ryzen 5 8645HS (100%)
AMD Ryzen 5 PRO 3400GE (35%)

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 8645HS AMD Ryzen 5 8645HS
6C 12T @ 5.00 GHz
1802 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 4.00 GHz
919 (51%)

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 8645HS AMD Ryzen 5 8645HS
6C 12T @ 4.30 GHz
7768 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 3.30 GHz
2897 (37%)

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 8645HS AMD Ryzen 5 8645HS
6C 12T @ 5.00 GHz
2478 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 4.00 GHz
1075 (43%)

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 8645HS AMD Ryzen 5 8645HS
6C 12T @ 4.30 GHz
10357 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 3.30 GHz
3412 (33%)

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 8645HS AMD Ryzen 5 8645HS
AMD Radeon 760M @ 2.60 GHz
2663 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
AMD Radeon RX Vega 11 (Raven Ridge) @ 1.30 GHz
1830 (69%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
AMD Ryzen 5 8645HS AMD Ryzen 5 8645HS
6C 12T @ 5.00 GHz
99 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 4.00 GHz
0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
AMD Ryzen 5 8645HS AMD Ryzen 5 8645HS
6C 12T @ 5.00 GHz
702 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 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 8645HS AMD Ryzen 5 8645HS
6C 12T @ 4.30 GHz
0 (0%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 3.30 GHz
8280 (100%)

AI performance (NPU)

The performance values of the processor's AI unit. The isolated NPU performance is given here, the total AI performance (NPU+CPU+iGPU) can be higher.

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. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
AMD Ryzen 5 8645HS AMD Ryzen 5 8645HS
6C 12T @ 4.30 GHz
16 (100%)
AMD Ryzen 5 PRO 3400GE AMD Ryzen 5 PRO 3400GE
4C 8T @ 3.30 GHz
0 (0%)

Devices using this processor

AMD Ryzen 5 8645HS AMD Ryzen 5 PRO 3400GE
Unknown Lenovo ThinkCentre M75q-1 Tiny
HP Inc. EliteDesk 705 G5 DM

Popular comparisons containing this CPUs

1. AMD Ryzen 5 PRO 3400GEAMD Ryzen 5 PRO 4650GE AMD Ryzen 5 PRO 3400GE vs AMD Ryzen 5 PRO 4650GE
2. AMD Ryzen 5 PRO 3400GEAMD Ryzen 5 PRO 4650G AMD Ryzen 5 PRO 3400GE vs AMD Ryzen 5 PRO 4650G
3. AMD Ryzen 5 PRO 3400GEIntel Core i5-1135G7 AMD Ryzen 5 PRO 3400GE vs Intel Core i5-1135G7
4. AMD Ryzen 7 PRO 4750GEAMD Ryzen 5 PRO 3400GE AMD Ryzen 7 PRO 4750GE vs AMD Ryzen 5 PRO 3400GE
5. AMD Ryzen 5 PRO 3400GEAMD Ryzen 3 PRO 4350GE AMD Ryzen 5 PRO 3400GE vs AMD Ryzen 3 PRO 4350GE
6. AMD Ryzen 5 PRO 3400GEAMD Ryzen 5 PRO 5650GE AMD Ryzen 5 PRO 3400GE vs AMD Ryzen 5 PRO 5650GE
7. AMD Ryzen 7 8845HSAMD Ryzen 5 8645HS AMD Ryzen 7 8845HS vs AMD Ryzen 5 8645HS
8. AMD Ryzen 5 PRO 3400GEAMD Ryzen 5 2400G AMD Ryzen 5 PRO 3400GE vs AMD Ryzen 5 2400G
9. AMD Ryzen 5 PRO 3400GEIntel Core i5-9500T AMD Ryzen 5 PRO 3400GE vs Intel Core i5-9500T
10. Intel Core Ultra 5 125HAMD Ryzen 5 8645HS Intel Core Ultra 5 125H vs AMD Ryzen 5 8645HS


back to index