Intel Xeon w7-3445 vs Intel Celeron 3955U

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CPU comparison with benchmarks


Intel Xeon w7-3445 CPU1 vs CPU2 Intel Celeron 3955U
Intel Xeon w7-3445 Intel Celeron 3955U

CPU comparison

Intel Xeon w7-3445 or Intel Celeron 3955U - 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 Intel Xeon w7-3445 has 20 cores with 40 threads and clocks with a maximum frequency of 4.80 GHz. Up to 4096 GB of memory is supported in 8 memory channels. The Intel Xeon w7-3445 was released in Q1/2023.

The Intel Celeron 3955U has 2 cores with 2 threads and clocks with a maximum frequency of 2.00 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Celeron 3955U was released in Q4/2015.
Intel Xeon W (83) Family Intel Celeron (165)
Intel Xeon W-3400 (8) CPU group Intel Celeron 3000 (10)
12 Generation 7
Sapphire Rapids-WS Architecture Kaby Lake U
Desktop / Server Segment Mobile
Intel Xeon W-3345 Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Xeon w7-3445 is a 20 core processor with a clock frequency of 2.60 GHz (4.80 GHz). The Intel Celeron 3955U has 2 CPU cores with a clock frequency of 2.00 GHz.

Intel Xeon w7-3445 Characteristic Intel Celeron 3955U
20 Cores 2
40 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.60 GHz Frequency 2.00 GHz
4.80 GHz Turbo Frequency (1 Core) --
3.40 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.

Intel Xeon w7-3445 Characteristic Intel Celeron 3955U
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

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 Intel Xeon w7-3445 supports a maximum of 4096 GB of memory in 8 memory channels. The Intel Celeron 3955U can connect up to 32 GB of memory in 2 memory channels.

Intel Xeon w7-3445 Characteristic Intel Celeron 3955U
DDR5-4800 Memory LPDDR3-1866, DDR4-2133, DDR3L-1600
4096 GB Max. Memory 32 GB
8 (Octa Channel) Memory channels 2 (Dual Channel)
307.2 GB/s Max. Bandwidth 34.1 GB/s
Yes ECC No
-- L2 Cache --
52.50 MB L3 Cache 2.00 MB
5.0 PCIe version 3.0
112 PCIe lanes 12
441.1 GB/s PCIe Bandwidth 11.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Xeon w7-3445 has a TDP of 270 W, that of the Intel Celeron 3955U is 15 W.

Intel Xeon w7-3445 Characteristic Intel Celeron 3955U
270 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
324 W TDP up --
-- TDP down 10 W
94 °C Tjunction max. 100 °C

Technical details

The Intel Xeon w7-3445 has a 52.50 MB cache, while the Intel Celeron 3955U cache has a total of 2.00 MB.

Intel Xeon w7-3445 Characteristic Intel Celeron 3955U
10 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512, AMX ISA extensions SSE4.1, SSE4.2
LGA 4677 Socket --
VT-x, VT-x EPT, VT-d, VT-rp, vPro Enterprise Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 11, Windows Server, Linux Operating systems Windows 10, Linux
Q1/2023 Release date Q4/2015
1989 $ Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Xeon w7-3445 to help other visitors make their purchasing decisions. The average rating is 4.5 stars (2 ratings). Rate now:
Here you can rate the Intel Celeron 3955U 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 1 CPU benchmarks
Intel Xeon w7-3445 (100%)
Intel Celeron 3955U (22%)
⌀ Multi core performance in 0 CPU benchmarks
Intel Xeon w7-3445 (0%)
Intel Celeron 3955U (0%)

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.
Intel Xeon w7-3445 Intel Xeon w7-3445
20C 40T @ 4.80 GHz
1996 (100%)
Intel Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
445 (22%)

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.
Intel Xeon w7-3445 Intel Xeon w7-3445
20C 40T @ 4.80 GHz
0 (0%)
Intel Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
514 (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.
Intel Xeon w7-3445 Intel Xeon w7-3445
20C 40T @ 3.40 GHz
0 (0%)
Intel Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
1018 (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.
Intel Xeon w7-3445 Intel Xeon w7-3445
20C 40T @ 3.40 GHz
0 (0%)
Intel Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
780 (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.
Intel Xeon w7-3445 Intel Xeon w7-3445
@ 0.00 GHz
0 (0%)
Intel Celeron 3955U Intel Celeron 3955U
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.
Intel Xeon w7-3445 Intel Xeon w7-3445
20C 40T @ 3.40 GHz
0 (0%)
Intel Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
1488 (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.
Intel Xeon w7-3445 Intel Xeon w7-3445
20C 40T @ 4.80 GHz
0 (0%)
Intel Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
85 (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.
Intel Xeon w7-3445 Intel Xeon w7-3445
20C 40T @ 3.40 GHz
0 (0%)
Intel Celeron 3955U Intel Celeron 3955U
2C 2T @ 2.00 GHz
159 (100%)

Devices using this processor

Intel Xeon w7-3445 Intel Celeron 3955U
Unknown Unknown

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