Intel Core i9-11900 vs Intel Celeron 5205U

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CPU comparison with benchmarks


Intel Core i9-11900 CPU1 vs CPU2 Intel Celeron 5205U
Intel Core i9-11900 Intel Celeron 5205U

CPU comparison

Intel Core i9-11900 or Intel Celeron 5205U - 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 Core i9-11900 has 8 cores with 16 threads and clocks with a maximum frequency of 5.20 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i9-11900 was released in Q1/2021.

The Intel Celeron 5205U has 2 cores with 2 threads and clocks with a maximum frequency of 1.90 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Celeron 5205U was released in Q4/2019.
Intel Core i9 (78) Family Intel Celeron (165)
Intel Core i 11000 (22) CPU group Intel Celeron 5000 (2)
11 Generation 10
Rocket Lake S Architecture Comet Lake U
Desktop / Server Segment Mobile
Intel Core i9-10900 Predecessor Intel Celeron 4205U
Intel Core i9-12900 Successor --

CPU Cores and Base Frequency

The Intel Core i9-11900 has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the Intel Core i9-11900 is 2.50 GHz (5.20 GHz) while the Intel Celeron 5205U has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the Intel Celeron 5205U is at 1.90 GHz.

Intel Core i9-11900 Characteristic Intel Celeron 5205U
8 Cores 2
16 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
2.50 GHz Frequency 1.90 GHz
5.20 GHz Turbo Frequency (1 Core) --
3.80 GHz Turbo Frequency (All Cores) --

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 i9-11900 Characteristic Intel Celeron 5205U
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core i9-11900 or Intel Celeron 5205U 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 UHD Graphics 750 GPU Intel UHD Graphics (Comet Lake)
0.35 GHz GPU frequency 0.30 GHz
1.30 GHz GPU (Turbo) 0.90 GHz
12 GPU Generation 9.5
14 nm Technology 14 nm
3 Max. displays 3
32 Compute units 24
256 Shader 192
No Hardware Raytracing No
No Frame Generation No
64 GB Max. GPU Memory 32 GB
12 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 UHD Graphics 750 GPU Intel UHD Graphics (Comet Lake)
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode Codec VP8 Decode / Encode
Decode Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core i9-11900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The Intel Celeron 5205U supports up to 64 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s.

Intel Core i9-11900 Characteristic Intel Celeron 5205U
DDR4-3200 Memory LPDDR3-2133, DDR4-2400
128 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth 38.4 GB/s
No ECC No
4.00 MB L2 Cache --
16.00 MB L3 Cache 2.00 MB
4.0 PCIe version 2.0
20 PCIe lanes 12
39.4 GB/s PCIe Bandwidth 6.0 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Core i9-11900 is 65 W, while the Intel Celeron 5205U has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i9-11900 Characteristic Intel Celeron 5205U
65 W TDP (PL1 / PBP) 15 W
224 W @ 56 s TDP (PL2) --
-- TDP up --
-- TDP down 12.5 W
100 °C Tjunction max. 100 °C

Technical details

The Intel Core i9-11900 is manufactured in 14 nm and has 20.00 MB cache. The Intel Celeron 5205U is manufactured in 14 nm and has a 2.00 MB cache.

Intel Core i9-11900 Characteristic Intel Celeron 5205U
14 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 ISA extensions SSE4.1, SSE4.2
LGA 1200 Socket BGA 1528
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2021 Release date Q4/2019
439 $ Release price 128 $
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 Core i9-11900 Intel Core i9-11900
8C 16T @ 5.20 GHz
1831 (100%)
Intel Celeron 5205U Intel Celeron 5205U
2C 2T @ 1.90 GHz
457 (25%)

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 i9-11900 Intel Core i9-11900
8C 16T @ 3.80 GHz
9674 (100%)
Intel Celeron 5205U Intel Celeron 5205U
2C 2T @ 1.90 GHz
840 (9%)

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 i9-11900 Intel Core i9-11900
8C 16T @ 5.20 GHz
2148 (100%)
Intel Celeron 5205U Intel Celeron 5205U
2C 2T @ 1.90 GHz
385 (18%)

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 i9-11900 Intel Core i9-11900
8C 16T @ 3.80 GHz
10040 (100%)
Intel Celeron 5205U Intel Celeron 5205U
2C 2T @ 1.90 GHz
636 (6%)

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 i9-11900 Intel Core i9-11900
Intel UHD Graphics 750 @ 1.30 GHz
666 (100%)
Intel Celeron 5205U Intel Celeron 5205U
Intel UHD Graphics (Comet Lake) @ 0.90 GHz
361 (54%)

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 i9-11900 Intel Core i9-11900
8C 16T @ 3.80 GHz
22830 (100%)
Intel Celeron 5205U Intel Celeron 5205U
2C 2T @ 1.90 GHz
1455 (6%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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 Core i9-11900 Intel Core i9-11900
8C 16T @ 5.20 GHz
1630 (100%)
Intel Celeron 5205U Intel Celeron 5205U
2C 2T @ 1.90 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i9-11900 Intel Core i9-11900
8C 16T @ 2.50 GHz
6293 (100%)
Intel Celeron 5205U Intel Celeron 5205U
2C 2T @ 1.90 GHz
0 (0%)

Devices using this processor

Intel Core i9-11900 Intel Celeron 5205U
Unknown Unknown

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