Intel Core Ultra 7 155U vs Intel Xeon D-2143IT

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CPU comparison with benchmarks


Intel Core Ultra 7 155U CPU1 vs CPU2 Intel Xeon D-2143IT
Intel Core Ultra 7 155U Intel Xeon D-2143IT

CPU comparison

In this CPU comparison, we compare the Intel Core Ultra 7 155U and the Intel Xeon D-2143IT and use benchmarks to check which processor is faster.

We compare the Intel Core Ultra 7 155U 12 core processor released in Q4/2023 with the Intel Xeon D-2143IT which has 8 CPU cores and was introduced in Q1/2018.
Intel Core Ultra 7 (9) Family Intel Xeon D (79)
Intel Core Ultra 100U (7) CPU group Intel Xeon D-2100 (13)
1 Generation 2
Meteor Lake U Architecture Skylake
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core Ultra 7 155U is a 12 core processor with a clock frequency of 1.70 GHz (4.80 GHz). The processor can compute 14 threads at the same time. The Intel Xeon D-2143IT clocks with 2.20 GHz (3.00 GHz), has 8 CPU cores and can calculate 16 threads in parallel.

Intel Core Ultra 7 155U Characteristic Intel Xeon D-2143IT
12 Cores 8
14 Threads 16
hybrid (big.LITTLE) Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
1.70 GHz (4.80 GHz)
2x Redwood Cove
A-Core 2.20 GHz (3.00 GHz)
1.20 GHz (3.80 GHz)
8x Crestmont
B-Core --
0.70 GHz (2.10 GHz)
2x Crestmont
C-Core --

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.

Intel Core Ultra 7 155U Characteristic Intel Xeon D-2143IT
Intel AI engine AI hardware --
Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) 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.

Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) GPU no iGPU
0.60 GHz GPU frequency --
1.95 GHz GPU (Turbo) --
-- GPU Generation --
5 nm Technology
4 Max. displays
64 Compute units --
512 Shader --
Yes Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory --
12.2 DirectX Version --

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.

Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode Codec VP9 No
Decode Codec VP8 No
Decode / Encode Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

Up to 96 GB of memory in a maximum of 2 memory channels is supported by the Intel Core Ultra 7 155U, while the Intel Xeon D-2143IT supports a maximum of 512 GB of memory with a maximum memory bandwidth of 68.2 GB/s enabled.

Intel Core Ultra 7 155U Characteristic Intel Xeon D-2143IT
LPDDR5X-7500, DDR5-5600 Memory DDR4-2133
96 GB Max. Memory 512 GB
2 (Dual Channel) Memory channels 4 (Quad Channel)
120.0 GB/s Max. Bandwidth 68.2 GB/s
No ECC Yes
12.00 MB L2 Cache 11.00 MB
-- L3 Cache --
4.0 PCIe version 3.0
20 PCIe lanes 32
39.4 GB/s PCIe Bandwidth 31.5 GB/s

Thermal Management

The Intel Core Ultra 7 155U has a TDP of 15 W. The TDP of the Intel Xeon D-2143IT is 65 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core Ultra 7 155U Characteristic Intel Xeon D-2143IT
15 W TDP (PL1 / PBP) 65 W
57 W TDP (PL2) --
28 W TDP up --
12 W TDP down --
110 °C Tjunction max. --

Technical details

The Intel Core Ultra 7 155U has 12.00 MB cache and is manufactured in 7 nm. The cache of Intel Xeon D-2143IT is at 11.00 MB. The processor is manufactured in 14 nm.

Intel Core Ultra 7 155U Characteristic Intel Xeon D-2143IT
7 nm Technology 14 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
BGA 2049 Socket BGA 2518
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 11, Linux Operating systems Windows 10, Linux
Q4/2023 Release date Q1/2018
-- Release price 606 $
show more data show more data


Rate these processors

Here you can rate the Intel Core Ultra 7 155U to help other visitors make their purchasing decisions. The average rating is 4.0 stars (10 ratings). Rate now:
Here you can rate the Intel Xeon D-2143IT to help other visitors make their purchasing decisions. The average rating is 3.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core Ultra 7 155U (100%)
Intel Xeon D-2143IT (43%)
⌀ Multi core performance in 1 CPU benchmarks
Intel Core Ultra 7 155U (100%)
Intel Xeon D-2143IT (58%)

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 Core Ultra 7 155U Intel Core Ultra 7 155U
12C 14T @ 4.80 GHz
2354 (100%)
Intel Xeon D-2143IT Intel Xeon D-2143IT
8C 16T @ 3.00 GHz
1022 (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.
Intel Core Ultra 7 155U Intel Core Ultra 7 155U
12C 14T @ 1.70 GHz
9716 (100%)
Intel Xeon D-2143IT Intel Xeon D-2143IT
8C 16T @ 2.20 GHz
5621 (58%)

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 Core Ultra 7 155U Intel Core Ultra 7 155U
12C 14T @ 4.80 GHz
0 (0%)
Intel Xeon D-2143IT Intel Xeon D-2143IT
8C 16T @ 3.00 GHz
853 (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 Core Ultra 7 155U Intel Core Ultra 7 155U
12C 14T @ 1.70 GHz
0 (0%)
Intel Xeon D-2143IT Intel Xeon D-2143IT
8C 16T @ 2.20 GHz
5964 (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 Core Ultra 7 155U Intel Core Ultra 7 155U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.95 GHz
1935 (100%)
Intel Xeon D-2143IT Intel Xeon D-2143IT
@ 0.00 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.
Intel Core Ultra 7 155U Intel Core Ultra 7 155U
12C 14T @ 1.70 GHz
0 (0%)
Intel Xeon D-2143IT Intel Xeon D-2143IT
8C 16T @ 2.20 GHz
12482 (100%)

Devices using this processor

Intel Core Ultra 7 155U Intel Xeon D-2143IT
Unknown Unknown

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