AMD Ryzen 5 PRO 5645 vs Intel Celeron J3455E

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CPU comparison with benchmarks


AMD Ryzen 5 PRO 5645 CPU1 vs CPU2 Intel Celeron J3455E
AMD Ryzen 5 PRO 5645 Intel Celeron J3455E

CPU comparison

In this CPU comparison, we compare the AMD Ryzen 5 PRO 5645 and the Intel Celeron J3455E and use benchmarks to check which processor is faster.

We compare the AMD Ryzen 5 PRO 5645 6 core processor released in Q3/2022 with the Intel Celeron J3455E which has 4 CPU cores and was introduced in Q3/2019.
AMD Ryzen 5 (84) Family Intel Celeron (165)
AMD Ryzen 5000U (13) CPU group Intel Celeron J3000 (4)
4 Generation 7
Cezanne (Zen 3) Architecture Apollo Lake
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 5 PRO 5645 is a 6 core processor with a clock frequency of 3.70 GHz (4.60 GHz). The processor can compute 12 threads at the same time. The Intel Celeron J3455E clocks with 1.50 GHz (2.30 GHz), has 4 CPU cores and can calculate 4 threads in parallel.

AMD Ryzen 5 PRO 5645 Characteristic Intel Celeron J3455E
6 Cores 4
12 Threads 4
normal Core architecture normal
Yes Hyperthreading No
Yes Overclocking ? No
3.70 GHz Frequency 1.50 GHz
4.60 GHz Turbo Frequency (1 Core) 2.30 GHz
-- Turbo Frequency (All Cores) 2.20 GHz

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 PRO 5645 Characteristic Intel Celeron J3455E
-- AI hardware --
-- AI specifications --

Internal Graphics

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.

no iGPU GPU Intel HD Graphics 500
GPU frequency 0.25 GHz
-- GPU (Turbo) 0.70 GHz
-- GPU Generation 9
Technology 14 nm
Max. displays 3
-- Compute units 12
-- Shader 96
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 8 GB
-- 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.

no iGPU GPU Intel HD Graphics 500
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode
No Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

Up to 64 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 5 PRO 5645, while the Intel Celeron J3455E supports a maximum of 8 GB of memory with a maximum memory bandwidth of 29.9 GB/s enabled.

AMD Ryzen 5 PRO 5645 Characteristic Intel Celeron J3455E
LPDDR4-4266, DDR4-3200 Memory LPDDR4-2400, LPDDR3-1866, DDR3L-1866
64 GB Max. Memory 8 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth 29.9 GB/s
No ECC No
3.00 MB L2 Cache --
32.00 MB L3 Cache 2.00 MB
4.0 PCIe version 2.0
-- PCIe lanes 6
-- PCIe Bandwidth 3.0 GB/s

Thermal Management

The AMD Ryzen 5 PRO 5645 has a TDP of 65 W. The TDP of the Intel Celeron J3455E is 10 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen 5 PRO 5645 Characteristic Intel Celeron J3455E
65 W TDP (PL1 / PBP) 10 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
95 °C Tjunction max. 105 °C

Technical details

The AMD Ryzen 5 PRO 5645 has 35.00 MB cache and is manufactured in 7 nm. The cache of Intel Celeron J3455E is at 2.00 MB. The processor is manufactured in 14 nm.

AMD Ryzen 5 PRO 5645 Characteristic Intel Celeron J3455E
7 nm Technology 14 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4.1, SSE4.2
AM4 (PGA 1331) Socket BGA 1296
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Linux
Q3/2022 Release date Q3/2019
-- Release price --
show more data show more data


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Here you can rate the Intel Celeron J3455E 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 1 CPU benchmarks
AMD Ryzen 5 PRO 5645 (100%)
Intel Celeron J3455E (21%)
⌀ Multi core performance in 2 CPU benchmarks
AMD Ryzen 5 PRO 5645 (100%)
Intel Celeron J3455E (15%)

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 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz
1570 (100%)
Intel Celeron J3455E Intel Celeron J3455E
4C 4T @ 2.30 GHz
331 (21%)

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 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz
7089 (100%)
Intel Celeron J3455E Intel Celeron J3455E
4C 4T @ 2.20 GHz
1224 (17%)

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 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz
19544 (100%)
Intel Celeron J3455E Intel Celeron J3455E
4C 4T @ 2.20 GHz
2255 (12%)

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 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz
0 (0%)
Intel Celeron J3455E Intel Celeron J3455E
4C 4T @ 2.30 GHz
292 (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 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz
0 (0%)
Intel Celeron J3455E Intel Celeron J3455E
4C 4T @ 2.20 GHz
874 (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 PRO 5645 AMD Ryzen 5 PRO 5645
@ 0.00 GHz
0 (0%)
Intel Celeron J3455E Intel Celeron J3455E
Intel HD Graphics 500 @ 0.70 GHz
134 (100%)

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 Ryzen 5 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz
0 (0%)
Intel Celeron J3455E Intel Celeron J3455E
4C 4T @ 2.30 GHz
50 (100%)

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 Ryzen 5 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz
0 (0%)
Intel Celeron J3455E Intel Celeron J3455E
4C 4T @ 2.20 GHz
93 (100%)

Devices using this processor

AMD Ryzen 5 PRO 5645 Intel Celeron J3455E
Unknown Unknown

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