Core M 5Y51

Details and Benchmarks for Intel Core M 5Y51

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core M 5Y51 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,693 Rank: 1111
Rank Name Score Visual
1107 Core i5-2400 4,695
+0%
1108 Xeon E3-1280 4,695
+0%
1109 Core i5-3380M 4,694
+0%
1110 Core i3-4330T 4,694
+0%
1111 Core M 5Y51 4,693
1112 Celeron G3930T 4,693
+0%
1113 Xeon W3570 4,690
-0.1%
1114 Core i5-3570S 4,690
-0.1%
1115 Core i3-3240 4,689
-0.1%
1116 Core i7 940 4,688
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core M 5Y51 based on multi-threaded benchmark results.

4,385 Rank: 1489
Rank Name Score Visual
1485 Celeron G1840 4,389
+0.1%
1486 Core i7-920XM 4,389
+0.1%
1487 Core i5-2540M 4,387
+0%
1488 Xeon L5520 4,386
+0%
1489 Core M 5Y51 4,385
1490 Pentium G2120 4,385
+0%
1491 A10-5750M 4,385
+0%
1492 Athlon II X4 605e 4,385
+0%
1493 Xeon X5472 4,384
+-0%
1494 A6-3670 4,384
+-0%

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Singlecore Score

Single-core performance score for Core M 5Y51 based on single-threaded benchmark results.

4,898 Rank: 1006
Rank Name Score Visual
1002 Xeon Silver 4109T 4,901
+0.1%
1003 Core i3-6167U 4,901
+0.1%
1004 Core i3-7130U 4,900
+0%
1005 Core i7-4600U 4,899
+0%
1006 Core M 5Y51 4,898
1007 Pentium Gold G5420T 4,897
+-0%
1008 Ryzen 3 2300U 4,897
+-0%
1009 Core i5-2500S 4,895
-0.1%
1010 FX-4170 4,895
-0.1%
1011 Core i5-2560M 4,894
-0.1%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core M 5Y51 based on integer math, floating point math, and prime number computation benchmarks.

-- Rank: --

Number Crunching score not yet available.

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Data Processing

Aggregated score for Core M 5Y51 based on data encryption, data compression, and string sorting benchmarks.

-- Rank: --

Data Processing score not yet available.

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Physics & Compute

Aggregated score for Core M 5Y51 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

-- Rank: --

Physics & Compute score not yet available.

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Core M 5Y51 Details

The Core M 5Y51 represents a refinement of Intel's low-power mobile computing strategy, building upon the foundation laid by its predecessors with a focus on efficiency and integrated performance. Released in the early 2010s, this processor is now considered outdated by modern standards, but its design reflects a period when Intel prioritized thermal constraints in ultrabooks and compact devices. Built on the 14 nm Broadwell microarchitecture, the Core M 5Y51 is designed for mobile use, offering a balance between performance and power consumption that was relevant at the time of its launch.

This dual-core processor features a base clock speed of 1.1 GHz, which can boost up to 2.6 GHz under load, thanks to Intel Turbo Boost Technology 2.0. It supports simultaneous multithreading, allowing it to handle four threads concurrently, which improves multitasking efficiency. The chip includes a 4 MiB L3 cache and 512 KiB of L2 cache, supporting faster data access for demanding applications. With a TDP of just 4.5 W—down from the 6 W peak—the Core M 5Y51 is engineered for passive cooling, making it ideal for fanless systems.

Integrated into the processor is the Intel HD Graphics 5300 GPU, capable of running at a maximum frequency of 900 MHz. This graphics unit supports up to four displays and is suitable for basic multimedia tasks and light gaming, though it falls far short of modern discrete solutions. The processor supports up to 16 GB of DDR3L or DDR4 memory, with a maximum bandwidth of 16 GB/s, ensuring adequate performance for general productivity and web browsing.

In benchmark testing, the Core M 5Y51 achieves an overall score of 4,693, placing it at rank #1111 among 2060 processors. Its single-core score of 4,898 ranks it at #1006, indicating relatively strong performance in tasks that rely on a single core. However, its multicore score of 4,385 places it at #1489, suggesting that it is less competitive in heavily threaded workloads. This gap between single-core and multicore performance highlights its design focus on efficiency over raw parallel processing power.

When compared to contemporary CPUs, the Core M 5Y51 holds its own in single-threaded applications, competing with modern low-power processors like the Core i3-7130U and Core i5-450M. However, it trails significantly behind high-end processors such as the Ryzen Threadripper PRO 9995WX and Core Ultra 9 285K, which dominate the top 50 in all three scoring categories. The processor is most suitable for lightweight mobile workloads, including web browsing, office applications, and media playback.

As of March 2026, the Core M 5Y51 is best suited for users requiring a compact, low-power system with minimal heat output. While it is no longer competitive in high-performance computing or modern gaming, its efficiency and integrated graphics make it a viable option for basic computing tasks in fanless or ultra-slim devices. Its legacy lies in demonstrating Intel's early commitment to low-power mobile computing, paving the way for future generations of energy-efficient processors.
Frequently Compared

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AMD Ryzen 9 7900X3D 27 views

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Intel Core M 5Y51

Main Specifications

Designer: Intel
Name: Core M 5Y51
Family: Core
Series: 5000
Model Number: 5Y51
Cores: 2
Threads: 4
Base Frequency: 1100 MHz
Turbo Frequency (1 core): 2600 MHz
Clock Multiplier: 11x (locked)
Microarchitecture: Broadwell
Core Name: Broadwell
Core Family: 06
Core Model: 3D
Target Segment: Mobile
Max CPUs: 1
TDP: 4.5 W

Cache Specifications

L1 Instruction Cache: 64 KiB (8-way set associative)
L1 Data Cache: 64 KiB (8-way set associative)
L2 Cache: 512 MiB (8-way set associative)
L3 Cache: 4 MiB

Memory Specifications

Maximum Memory: 16 GB

Integrated Graphics

GPU: Intel HD Graphics 5300
GPU Max Frequency: 900 MHz

Physical Specifications

Process: 14 nm
Die Area: 82 mm²
Transistor Count: 1.30 billion
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 BMI1 BMI2 AES CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST TXT vPro VT-x VT-d EPT IPT Flex Memory MWT ATT FMA
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