AMD EPYC 7401 vs Intel Celeron 3855U

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CPU comparison with benchmarks


AMD EPYC 7401 CPU1 vs CPU2 Intel Celeron 3855U
AMD EPYC 7401 Intel Celeron 3855U

CPU comparison

AMD EPYC 7401 or Intel Celeron 3855U - 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 EPYC 7401 has 24 cores with 48 threads and clocks with a maximum frequency of 3.00 GHz. Up to GB of memory is supported in 8 memory channels. The AMD EPYC 7401 was released in Q3/2017.

The Intel Celeron 3855U has 2 cores with 2 threads and clocks with a maximum frequency of 1.60 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Celeron 3855U was released in Q4/2015.
AMD EPYC (129) Family Intel Celeron (165)
AMD EPYC 7001 (12) CPU group Intel Celeron 3000 (10)
1 Generation 7
Naples (Zen) Architecture Kaby Lake U
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD EPYC 7401 has 24 CPU cores and can calculate 48 threads in parallel. The clock frequency of the AMD EPYC 7401 is 2.00 GHz (3.00 GHz) while the Intel Celeron 3855U has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the Intel Celeron 3855U is at 1.60 GHz.

AMD EPYC 7401 Characteristic Intel Celeron 3855U
24 Cores 2
48 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.00 GHz Frequency 1.60 GHz
3.00 GHz Turbo Frequency (1 Core) --
2.80 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 EPYC 7401 Characteristic Intel Celeron 3855U
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The AMD EPYC 7401 or Intel Celeron 3855U 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.

no iGPU GPU Intel HD Graphics 510
GPU frequency 0.30 GHz
-- GPU (Turbo) 0.90 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 32 GB
-- DirectX Version 12.0

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 510
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

Memory & PCIe

The AMD EPYC 7401 can use up to GB of memory in 8 memory channels. The maximum memory bandwidth is 170.6 GB/s. The Intel Celeron 3855U supports up to 32 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 34.1 GB/s.

AMD EPYC 7401 Characteristic Intel Celeron 3855U
DDR4-2400, DDR4-2666 Memory LPDDR3-1866, DDR4-2133, DDR3L-1600
Max. Memory 32 GB
8 (Octa Channel) Memory channels 2 (Dual Channel)
170.6 GB/s Max. Bandwidth 34.1 GB/s
Yes ECC No
-- L2 Cache --
64.00 MB L3 Cache 2.00 MB
3.0 PCIe version 2.0
128 PCIe lanes 10
126.1 GB/s PCIe Bandwidth 5.0 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD EPYC 7401 is 170 W, while the Intel Celeron 3855U has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD EPYC 7401 Characteristic Intel Celeron 3855U
170 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 10 W
-- Tjunction max. 100 °C

Technical details

The AMD EPYC 7401 is manufactured in 14 nm and has 64.00 MB cache. The Intel Celeron 3855U is manufactured in 14 nm and has a 2.00 MB cache.

AMD EPYC 7401 Characteristic Intel Celeron 3855U
14 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
SP3 Socket --
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2017 Release date Q4/2015
1450 $ Release price 107 $
show more data show more data


Rate these processors

Here you can rate the AMD EPYC 7401 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the Intel Celeron 3855U to help other visitors make their purchasing decisions. The average rating is 2.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD EPYC 7401 (100%)
Intel Celeron 3855U (52%)
⌀ Multi core performance in 2 CPU benchmarks
AMD EPYC 7401 (100%)
Intel Celeron 3855U (5%)

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 EPYC 7401 AMD EPYC 7401
24C 48T @ 3.00 GHz
844 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
430 (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 EPYC 7401 AMD EPYC 7401
24C 48T @ 2.80 GHz
14101 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
848 (6%)

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 EPYC 7401 AMD EPYC 7401
24C 48T @ 3.00 GHz
132 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
68 (52%)

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 EPYC 7401 AMD EPYC 7401
24C 48T @ 2.80 GHz
3156 (100%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
127 (4%)

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 EPYC 7401 AMD EPYC 7401
24C 48T @ 3.00 GHz
0 (0%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
361 (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 EPYC 7401 AMD EPYC 7401
24C 48T @ 2.80 GHz
0 (0%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
632 (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 EPYC 7401 AMD EPYC 7401
@ 0.00 GHz
0 (0%)
Intel Celeron 3855U Intel Celeron 3855U
Intel HD Graphics 510 @ 0.90 GHz
173 (100%)

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 EPYC 7401 AMD EPYC 7401
24C 48T @ 2.80 GHz
0 (0%)
Intel Celeron 3855U Intel Celeron 3855U
2C 2T @ 1.60 GHz
1265 (100%)

Devices using this processor

AMD EPYC 7401 Intel Celeron 3855U
Unknown Unknown

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