Intel Pentium 4405U vs Intel Core i7-3520M

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CPU comparison with benchmarks


Intel Pentium 4405U CPU1 vs CPU2 Intel Core i7-3520M
Intel Pentium 4405U Intel Core i7-3520M

CPU comparison

Intel Pentium 4405U or Intel Core i7-3520M - 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 Pentium 4405U has 2 cores with 4 threads and clocks with a maximum frequency of 2.10 GHz. Up to 32 GB of memory is supported in 2 memory channels. The Intel Pentium 4405U was released in Q3/2015.

The Intel Core i7-3520M has 2 cores with 4 threads and clocks with a maximum frequency of 3.60 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-3520M was released in Q2/2012.
Intel Pentium (150) Family Intel Core i7 (298)
Intel Pentium 4000 (2) CPU group Intel Core i 3000M (29)
6 Generation 3
Skylake U Architecture Ivy Bridge H
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Pentium 4405U is a 2 core processor with a clock frequency of 2.10 GHz. The Intel Core i7-3520M has 2 CPU cores with a clock frequency of 2.90 GHz (3.60 GHz).

Intel Pentium 4405U Characteristic Intel Core i7-3520M
2 Cores 2
4 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
2.10 GHz Frequency 2.90 GHz
-- Turbo Frequency (1 Core) 3.60 GHz
-- Turbo Frequency (All Cores) 3.40 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 Pentium 4405U Characteristic Intel Core i7-3520M
-- AI hardware --
-- AI specifications --

Internal Graphics

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.

Intel HD Graphics 510 GPU Intel HD Graphics 4000
0.30 GHz GPU frequency 0.65 GHz
0.95 GHz GPU (Turbo) 1.25 GHz
9 GPU Generation 7
14 nm Technology 22 nm
3 Max. displays 3
12 Compute units 16
96 Shader 128
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 2 GB
12.0 DirectX Version 11.0

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.

Intel HD Graphics 510 GPU Intel HD Graphics 4000
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode Codec VP9 No
Decode / Encode 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 Pentium 4405U supports a maximum of 32 GB of memory in 2 memory channels. The Intel Core i7-3520M can connect up to 32 GB of memory in 2 memory channels.

Intel Pentium 4405U Characteristic Intel Core i7-3520M
DDR4-2133 Memory DDR3L-1333, DDR3L-1600, DDR3-1333, DDR3-1600
32 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
34.1 GB/s Max. Bandwidth 25.6 GB/s
No ECC No
-- L2 Cache --
2.00 MB L3 Cache 4.00 MB
2.0 PCIe version 3.0
10 PCIe lanes 16
5.0 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Pentium 4405U has a TDP of 15 W, that of the Intel Core i7-3520M is 35 W.

Intel Pentium 4405U Characteristic Intel Core i7-3520M
15 W TDP (PL1 / PBP) 35 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Pentium 4405U has a 2.00 MB cache, while the Intel Core i7-3520M cache has a total of 4.00 MB.

Intel Pentium 4405U Characteristic Intel Core i7-3520M
14 nm Technology 22 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, AVX
BGA 1356 Socket BGA 1023
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2015 Release date Q2/2012
-- Release price 346 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Pentium 4405U (66%)
Intel Core i7-3520M (100%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Pentium 4405U (72%)
Intel Core i7-3520M (100%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
492 (66%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.60 GHz
740 (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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
1236 (77%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.40 GHz
1613 (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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
445 (65%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.60 GHz
685 (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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
972 (67%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.40 GHz
1446 (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 Pentium 4405U Intel Pentium 4405U
Intel HD Graphics 510 @ 0.95 GHz
182 (57%)
Intel Core i7-3520M Intel Core i7-3520M
Intel HD Graphics 4000 @ 1.25 GHz
320 (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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
2100 (73%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.40 GHz
2862 (100%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
0 (0%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.60 GHz
621 (100%)

Cinebench R23 (Multi-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 multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
0 (0%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.40 GHz
1273 (100%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
0 (0%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.40 GHz
663 (100%)

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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
0 (0%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 2.90 GHz
835 (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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
89 (100%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.60 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 Pentium 4405U Intel Pentium 4405U
2C 4T @ 2.10 GHz
227 (100%)
Intel Core i7-3520M Intel Core i7-3520M
2C 4T @ 3.40 GHz
0 (0%)

Devices using this processor

Intel Pentium 4405U Intel Core i7-3520M
Unknown Unknown

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