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Intel Core i3-4005U vs Intel Celeron N2840

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CPU comparison with benchmarks


Intel Core i3-4005U CPU1 vs CPU2 Intel Celeron N2840
Intel Core i3-4005U Intel Celeron N2840

CPU comparison

Intel Core i3-4005U or Intel Celeron N2840 - 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 i3-4005U has 2 cores with 4 threads and clocks with a maximum frequency of 1.70 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core i3-4005U was released in Q3/2013.

The Intel Celeron N2840 has 2 cores with 2 threads and clocks with a maximum frequency of 2.58 GHz. The CPU supports up to 8 GB of memory in 2 memory channels. The Intel Celeron N2840 was released in Q2/2014.
Intel Core i3 (205) Family Intel Celeron (165)
Intel Core i 4000U (26) CPU group Intel Celeron J1000/N2000 (17)
4 Generation 6
Haswell U Architecture Bay Trail
Notebook Segment Notebook
-- Predecessor --
Intel Core i3-5005U Successor --

CPU Cores and Base Frequency

The Intel Core i3-4005U has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i3-4005U is 1.70 GHz while the Intel Celeron N2840 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the Intel Celeron N2840 is at 2.16 GHz (2.58 GHz).
Intel Core i3-4005U Characteristic Intel Celeron N2840
2 Cores 2
4 Threads 2
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
1.70 GHz Frequency 2.16 GHz
-- Turbo Frequency (1 Core) 2.58 GHz
-- Turbo Frequency (All Cores) 2.58 GHz

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 Core i3-4005U Characteristic Intel Celeron N2840
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Core i3-4005U or Intel Celeron N2840 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 4400 GPU Intel HD Graphics (Bay Trail GT1)
0.20 GHz GPU frequency 0.31 GHz
0.95 GHz GPU (Turbo) 0.79 GHz
7.5 GPU Generation 7
22 nm Technology 22 nm
3 Max. displays 2
20 Compute units 4
160 Shader 32
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 2 GB
11.1 DirectX Version 11.2

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 4400 GPU Intel HD Graphics (Bay Trail GT1)
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode Codec JPEG Decode

Memory & PCIe

The Intel Core i3-4005U can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 25.6 GB/s. The Intel Celeron N2840 supports up to 8 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.
Intel Core i3-4005U Characteristic Intel Celeron N2840
DDR3-1600 Memory DDR3-1333
16 GB Max. Memory 8 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
3.00 MB L3 Cache 1.00 MB
2.0 PCIe version 2.0
10 PCIe lanes 4
5.0 GB/s PCIe Bandwidth 2.0 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Core i3-4005U is 15 W, while the Intel Celeron N2840 has a TDP of 7.5 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Core i3-4005U Characteristic Intel Celeron N2840
15 W TDP (PL1 / PBP) 7.5 W
-- TDP (PL2) --
-- TDP up --
-- TDP down 4.5 W
-- Tjunction max. 100 °C

Technical details

The Intel Core i3-4005U is manufactured in 22 nm and has 3.00 MB cache. The Intel Celeron N2840 is manufactured in 22 nm and has a 1.00 MB cache.
Intel Core i3-4005U Characteristic Intel Celeron N2840
22 nm Technology 22 nm
Monolithic 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
BGA 1168 Socket BGA 1170
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2013 Release date Q2/2014
-- Release price 107 $
show more data show more data


Rate these processors

Here you can rate the Intel Core i3-4005U to help other visitors make their purchasing decisions. The average rating is 4.1 stars (17 ratings). Rate now:
Here you can rate the Intel Celeron N2840 to help other visitors make their purchasing decisions. The average rating is 1.6 stars (16 ratings). Rate now:

Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
Intel Core i3-4005U (100%)
Intel Celeron N2840 (53%)
⌀ Multi core performance in 5 CPU benchmarks
Intel Core i3-4005U (100%)
Intel Celeron N2840 (40%)

Geekbench 6 (Single-Core)

Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.
Intel Core i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
522 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
194 (37%)

Geekbench 6 (Multi-Core)

The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.
Intel Core i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
1105 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
335 (30%)

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 i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
416 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
251 (60%)

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 i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
956 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
460 (48%)

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 i3-4005U Intel Core i3-4005U
Intel HD Graphics 4400 @ 0.95 GHz
304 (100%)
Intel Celeron N2840 Intel Celeron N2840
Intel HD Graphics (Bay Trail GT1) @ 0.79 GHz
51 (17%)

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 i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
1654 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
584 (35%)

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 i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
456 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.16 GHz
184 (40%)

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 Core i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
67 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
42 (63%)

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 Core i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
171 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
81 (47%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 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 i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
156 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 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 Core i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
392 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-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 i3-4005U Intel Core i3-4005U
2C 4T @ 1.70 GHz
148 (100%)
Intel Celeron N2840 Intel Celeron N2840
2C 2T @ 2.58 GHz
0 (0%)

Devices using this processor
Intel Core i3-4005U Intel Celeron N2840
Unknown Unknown

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