Intel Core M-5Y51 vs Intel Core M-5Y31

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CPU comparison with benchmarks


Intel Core M-5Y51 CPU1 vs CPU2 Intel Core M-5Y31
Intel Core M-5Y51 Intel Core M-5Y31

CPU comparison

In this CPU comparison, we compare the Intel Core M-5Y51 and the Intel Core M-5Y31 and use benchmarks to check which processor is faster.

We compare the Intel Core M-5Y51 2 core processor released in Q4/2014 with the Intel Core M-5Y31 which has 2 CPU cores and was introduced in Q4/2014.
Intel Core M (16) Family Intel Core M (16)
Intel Core M 5 (7) CPU group Intel Core M 5 (7)
5 Generation 5
Broadwell Y Architecture Broadwell Y
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core M-5Y51 is a 2 core processor with a clock frequency of 1.10 GHz (2.60 GHz). The processor can compute 4 threads at the same time. The Intel Core M-5Y31 clocks with 0.90 GHz (2.40 GHz), has 2 CPU cores and can calculate 4 threads in parallel.

Intel Core M-5Y51 Characteristic Intel Core M-5Y31
2 Cores 2
4 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
1.10 GHz Frequency 0.90 GHz
2.60 GHz Turbo Frequency (1 Core) 2.40 GHz
2.00 GHz Turbo Frequency (All Cores) 1.80 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 Core M-5Y51 Characteristic Intel Core M-5Y31
-- AI hardware --
-- 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 HD Graphics 5300 GPU Intel HD Graphics 5300
0.30 GHz GPU frequency 0.30 GHz
0.90 GHz GPU (Turbo) 0.85 GHz
8 GPU Generation 8
14 nm Technology 14 nm
3 Max. displays 3
24 Compute units 24
192 Shader 192
No Hardware Raytracing No
No Frame Generation No
16 GB Max. GPU Memory 16 GB
11.2 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 5300 GPU Intel HD Graphics 5300
Decode Codec h265 / HEVC (8 bit) Decode
Decode Codec h265 / HEVC (10 bit) Decode
Decode / Encode Codec h264 Decode / Encode
Decode Codec VP9 Decode
Decode Codec VP8 Decode
No Codec AV1 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 16 GB of memory in a maximum of 2 memory channels is supported by the Intel Core M-5Y51, while the Intel Core M-5Y31 supports a maximum of 16 GB of memory with a maximum memory bandwidth of 25.6 GB/s enabled.

Intel Core M-5Y51 Characteristic Intel Core M-5Y31
DDR3L-1600 Memory DDR3L-1600
16 GB Max. Memory 16 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth 25.6 GB/s
No ECC No
-- L2 Cache --
4.00 MB L3 Cache 4.00 MB
2.0 PCIe version 2.0
12 PCIe lanes 12
6.0 GB/s PCIe Bandwidth 6.0 GB/s

Thermal Management

The Intel Core M-5Y51 has a TDP of 4.5 W. The TDP of the Intel Core M-5Y31 is 4.5 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core M-5Y51 Characteristic Intel Core M-5Y31
4.5 W TDP (PL1 / PBP) 4.5 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core M-5Y51 has 4.00 MB cache and is manufactured in 14 nm. The cache of Intel Core M-5Y31 is at 4.00 MB. The processor is manufactured in 14 nm.

Intel Core M-5Y51 Characteristic Intel Core M-5Y31
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 ISA extensions SSE4.1, SSE4.2, AVX2
BGA 1234 Socket BGA 1234
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Operating systems
Q4/2014 Release date Q4/2014
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 4 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 M-5Y51 Intel Core M-5Y51
2C 4T @ 2.60 GHz
669 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
2C 4T @ 2.40 GHz
612 (91%)

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 M-5Y51 Intel Core M-5Y51
2C 4T @ 2.00 GHz
1272 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
2C 4T @ 1.80 GHz
1162 (91%)

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 M-5Y51 Intel Core M-5Y51
2C 4T @ 2.60 GHz
782 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
2C 4T @ 2.40 GHz
722 (92%)

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 M-5Y51 Intel Core M-5Y51
2C 4T @ 2.00 GHz
1427 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
2C 4T @ 1.80 GHz
1280 (90%)

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 M-5Y51 Intel Core M-5Y51
Intel HD Graphics 5300 @ 0.90 GHz
346 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
Intel HD Graphics 5300 @ 0.85 GHz
326 (94%)

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 M-5Y51 Intel Core M-5Y51
2C 4T @ 2.00 GHz
2161 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
2C 4T @ 1.80 GHz
1959 (91%)

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 M-5Y51 Intel Core M-5Y51
2C 4T @ 2.60 GHz
107 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
2C 4T @ 2.40 GHz
98 (92%)

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 M-5Y51 Intel Core M-5Y51
2C 4T @ 2.00 GHz
208 (100%)
Intel Core M-5Y31 Intel Core M-5Y31
2C 4T @ 1.80 GHz
187 (90%)

Devices using this processor

Intel Core M-5Y51 Intel Core M-5Y31
Unknown Unknown

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