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Intel Core M-5Y70

Intel 5Y70

The Intel Core M-5Y70 is an ULV (ultra-low voltage) dual-core SoC based on the Broadwell architecture launched in September 2014. Thanks to its TDP of just 4.5 W (configurable), the CPU is suited also for passively cooled tablets and 2-in-1 notebooks. In addition to two CPU cores with Hyper-Threading clocked at 1.1 - 2.6 GHz, the chip integrates an HD Graphics 5300 GPU and a dual-channel LPDDR3/DDR3L(-RS) memory controller up to 25.6 GB/s. The Core M is manufactured in a 14 nm process with FinFET transistors.

Architecture

Broadwell represents the "Tick" in Intel's Tick-Tock model, which means a shrink of its predecessor Haswell. The new 14 nm manufacturing process with three-dimensional FinFET transistors allows not only improvements in energy efficiency, but also a significantly smaller die size fit for more compact packages and devices.

Further advantages result from the revised microarchitecture of Broadwell. Due to its improved branch prediction, bigger buffer sizes (1500 instead of 1000 entries in the L2 TLB) and other tweaks, the performance per clock has been increased by more than 5 percent over its predecessor. There are also some new instruction set extensions designed for cryptographic applications.

Performance 

The Core M-5Y70 offers a very wide turbo range from 1.1 - 2.6 GHz; however, the actual frequency is largely limited by the TDP. While the CPU is similar to a Core i5-4200U (Haswell, 15 W) in short benchmarks, its performance begins to degrade under continuous full load. Accordingly, the main purpose of Broadwell's higher power efficiency is to reduce power consumption instead of improving raw performance.

Overall, the Core M-5Y70 is sufficient for office and multimedia purposes as well as more demanding applications.

Graphics

The integrated HD Graphics 5300 offers 24 Execution Units (EUs) clocked at 100 - 850 MHz. Similar to the CPU core, the GPU architecture (Intel Gen 8) has been thoroughly revised for improved performance-per-clock. However, the GPU frequency is also limited by the TDP, which prevents significant performance boosts over the older HD 4200 under continuous 3D load. Only a few games as of 2014 are playable in low settings and XGA resolution.

Broadwell is the first Intel chip to fully support DirectX 11.2 as well as OpenCL 1.3/2.0 and OpenGL 4.3. Video will output natively via DisplayPort 1.2 or HDMI 1.4a. However, the new HDMI 2.0 standard is not officially supported.

Power Consumption

With a TDP of only 4.5 W, the Core M-5Y70 draws noticeably less power than the Haswell Y-series (11.5 W). However, the TDP can be set to different values such as 3.5 or 6 W, affacting clock rates and performance. The CPU can be passively cooled even in thin tablets.

SeriesIntel Core M
CodenameBroadwell
Series: Core M Broadwell
Intel Core M-5Y71 (compare)1200 - 2900 MHz2 / 44 MB
Intel Core M-5Y51 (compare)1100 - 2600 MHz2 / 44 MB
» Intel Core M-5Y701100 - 2600 MHz2 / 44 MB
Intel Core M-5Y31 (compare)900 - 2400 MHz2 / 44 MB
Intel Core M-5Y10c (compare)800 - 2000 MHz2 / 44 MB
Intel Core M-5Y10a (compare)800 - 2000 MHz2 / 44 MB
Intel Core M-5Y10 (compare)800 - 2000 MHz2 / 44 MB
Clock Rate1100 - 2600 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache4 MB
Number of Cores / Threads2 / 4
Max. Power Consumption (TDP = Thermal Design Power)4.5 Watt
Transistor Count1300 Million
Manufacturing Technology14 nm
Die Size82 mm2
Max. Temperature95 °C
SocketBGA
FeaturesHD Graphics 5300 (100 - 850 MHz), Dual-Channel DDR3L(-RS)/LPDDR3 Memory Controller (max. 800 MHz, 25.6 GB/s), HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, vPro
GPUIntel HD Graphics 5300 (100 - 850 MHz)
64 Bit64 Bit support
Announcement Date09/05/2014
Product Link (external)Intel Core M 5Y70

Benchmarks

Cinebench R15 - CPU Multi 64Bit
min: 180     avg: 182     median: 182 (8%)     max: 184 Points
Cinebench R15 - CPU Single 64Bit
min: 90     avg: 91     median: 91 (47%)     max: 92 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 1.89     avg: 2.2     median: 2.1 (9%)     max: 2.65 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.06     avg: 1.1     median: 1.1 (50%)     max: 1.13 Points
Cinebench R10 - Rendering Single 32Bit
min: 3629     avg: 3741     median: 3741 (47%)     max: 3853 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 5977     avg: 6375     median: 6375 (13%)     max: 6773 Points
3DMark 11 - Performance Physics 1280x720
min: 2320     avg: 2370.7     median: 2373 (14%)     max: 2419 points
3DMark - Ice Storm Standard Physics 1280x720
min: 20946     avg: 22530.7     median: 22277 (14%)     max: 24369 Points
3DMark - Cloud Gate Standard Physics 1280x720
min: 1531     avg: 1993.3     median: 2207 (6%)     max: 2242 Points
3DMark - Fire Strike Physics 1920x1080
min: 2464     avg: 2575.3     median: 2602 (12%)     max: 2660 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 3795     avg: 4150     median: 4150 (13%)     max: 4505 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 2249     avg: 2378     median: 2378 (51%)     max: 2507 Points
Mozilla Kraken 1.1 - Total Score *
min: 1586.4     avg: 1869.7     median: 1799.9 (3%)     max: 2222.8 ms
Sunspider - 1.0 Total Score *
min: 104.7     avg: 140.1     median: 120.6 (3%)     max: 195.1 ms
Octane V2 - Total Score
min: 11188     avg: 17293.3     median: 16925 (35%)     max: 23767 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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