Intel Celeron 2955U vs Intel Core i5-11400T

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CPU comparison with benchmarks


Intel Celeron 2955U CPU1 vs CPU2 Intel Core i5-11400T
Intel Celeron 2955U Intel Core i5-11400T

CPU comparison

Intel Celeron 2955U or Intel Core i5-11400T - 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 Celeron 2955U has 2 cores with 2 threads and clocks with a maximum frequency of 1.40 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Celeron 2955U was released in Q3/2013.

The Intel Core i5-11400T has 6 cores with 12 threads and clocks with a maximum frequency of 3.70 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Core i5-11400T was released in Q1/2021.
Intel Celeron (165) Family Intel Core i5 (328)
Intel Celeron 2000 (7) CPU group Intel Core i 11000 (22)
4 Generation 11
Haswell U Architecture Rocket Lake S
Mobile Segment Desktop / Server
-- Predecessor Intel Core i5-10400T
-- Successor Intel Core i5-12400T

CPU Cores and Base Frequency

The Intel Celeron 2955U has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the Intel Celeron 2955U is 1.40 GHz while the Intel Core i5-11400T has 6 CPU cores and 12 threads can calculate simultaneously. The clock frequency of the Intel Core i5-11400T is at 1.30 GHz (3.70 GHz).

Intel Celeron 2955U Characteristic Intel Core i5-11400T
2 Cores 6
2 Threads 12
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.40 GHz Frequency 1.30 GHz
-- Turbo Frequency (1 Core) 3.70 GHz
-- Turbo Frequency (All Cores) 3.30 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.

Intel Celeron 2955U Characteristic Intel Core i5-11400T
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Celeron 2955U or Intel Core i5-11400T 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.

Intel HD Graphics (Haswell GT1) GPU Intel UHD Graphics 730
0.20 GHz GPU frequency 0.35 GHz
1.00 GHz GPU (Turbo) 1.20 GHz
7.5 GPU Generation 12
22 nm Technology 14 nm
3 Max. displays 3
10 Compute units 24
80 Shader 192
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 64 GB
11.1 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.

Intel HD Graphics (Haswell GT1) GPU Intel UHD Graphics 730
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 Decode
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Celeron 2955U can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 25.6 GB/s. The Intel Core i5-11400T supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s.

Intel Celeron 2955U Characteristic Intel Core i5-11400T
LPDDR3-1600, DDR3L-1600 Memory DDR4-3200
16 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth 51.2 GB/s
No ECC No
-- L2 Cache 3.00 MB
2.00 MB L3 Cache 12.00 MB
2.0 PCIe version 4.0
10 PCIe lanes 20
5.0 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Celeron 2955U is 15 W, while the Intel Core i5-11400T has a TDP of 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Celeron 2955U Characteristic Intel Core i5-11400T
15 W TDP (PL1 / PBP) 35 W
-- TDP (PL2) 84 W @ 28 s
-- TDP up --
-- TDP down 25 W
100 °C Tjunction max. 100 °C

Technical details

The Intel Celeron 2955U is manufactured in 22 nm and has 2.00 MB cache. The Intel Core i5-11400T is manufactured in 14 nm and has a 15.00 MB cache.

Intel Celeron 2955U Characteristic Intel Core i5-11400T
22 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
BGA 1168 Socket LGA 1200
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q3/2013 Release date Q1/2021
-- Release price 182 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

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 Celeron 2955U Intel Celeron 2955U
2C 2T @ 1.40 GHz
317 (25%)
Intel Core i5-11400T Intel Core i5-11400T
6C 12T @ 3.70 GHz
1252 (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 Celeron 2955U Intel Celeron 2955U
2C 2T @ 1.40 GHz
632 (11%)
Intel Core i5-11400T Intel Core i5-11400T
6C 12T @ 3.30 GHz
5856 (100%)

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 Celeron 2955U Intel Celeron 2955U
2C 2T @ 1.40 GHz
284 (16%)
Intel Core i5-11400T Intel Core i5-11400T
6C 12T @ 3.70 GHz
1767 (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 Celeron 2955U Intel Celeron 2955U
2C 2T @ 1.40 GHz
515 (8%)
Intel Core i5-11400T Intel Core i5-11400T
6C 12T @ 3.30 GHz
6179 (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 Celeron 2955U Intel Celeron 2955U
Intel HD Graphics (Haswell GT1) @ 1.00 GHz
160 (35%)
Intel Core i5-11400T Intel Core i5-11400T
Intel UHD Graphics 730 @ 1.20 GHz
461 (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 Celeron 2955U Intel Celeron 2955U
2C 2T @ 1.40 GHz
866 (6%)
Intel Core i5-11400T Intel Core i5-11400T
6C 12T @ 3.30 GHz
13356 (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 Celeron 2955U Intel Celeron 2955U
2C 2T @ 1.40 GHz
56 (100%)
Intel Core i5-11400T Intel Core i5-11400T
6C 12T @ 3.70 GHz
0 (0%)

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 Celeron 2955U Intel Celeron 2955U
2C 2T @ 1.40 GHz
106 (100%)
Intel Core i5-11400T Intel Core i5-11400T
6C 12T @ 3.30 GHz
0 (0%)

Devices using this processor

Intel Celeron 2955U Intel Core i5-11400T
Unknown Unknown

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