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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 compare1.2 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core M-5Y51 compare1.1 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core M-5Y70 « 1.1 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core M-5Y31 compare0.9 - 2.4 GHz2 / 4 cores4 MB L3
Intel Core M-5Y10c compare0.8 - 2 GHz2 / 4 cores4 MB L3
Intel Core M-5Y10a compare0.8 - 2 GHz2 / 4 cores4 MB L3
Intel Core M-5Y10 compare0.8 - 2 GHz2 / 4 cores4 MB L3
Clock Rate1100 - 2600 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache4 MB
Number of Cores / Threads2 / 4
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
Architecturex86
Announcement Date09/05/2014
Product Link (external)ark.intel.com

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 1.89     avg: 2.2     median: 2.1 (3%)     max: 2.65 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 1.06     avg: 1.1     median: 1.1 (27%)     max: 1.13 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 5977     avg: 6375     median: 6375 (5%)     max: 6773 points
3DMark 11 - 3DM11 Performance Physics
min: 2320     avg: 2371     median: 2373 (6%)     max: 2419 Points
3DMark - 3DMark Ice Storm Physics
min: 20946     avg: 22531     median: 22277 (18%)     max: 24369 Points
3DMark - 3DMark Ice Storm Unlimited Physics
35144 Points (30%)
3DMark - 3DMark Fire Strike Standard Physics
min: 2464     avg: 2575     median: 2602 (5%)     max: 2660 Points
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
min: 3795     avg: 4150     median: 4150 (7%)     max: 4505 points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 1586     avg: 1870     median: 1800 (2%)     max: 2223 ms
Sunspider - Sunspider 1.0 Total Score *
min: 104.7     avg: 140.1     median: 120.6 (1%)     max: 195.1 ms
Octane V2 - Octane V2 Total Score
min: 11188     avg: 17293     median: 16925 (15%)     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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Reviews for the Intel Core M-5Y70 processor

Lenovo Yoga 3 Pro 13 80HE004LGE Convertible Review

Lenovo Yoga 3 Pro 13 80HE004LGE Convertible Review

A lot of room for improvements. Lenovo charges around 1,000 Euros ($1112) for the Yoga 3 Pro. You will get a thin and attractive 13.3-inch convertible with a fo...
Intel Core M-5Y70 | Intel HD Graphics 5300 | 13.30" | 1.2 kg
Intel Core M-5Y70 "Broadwell" Review

Intel Core M-5Y70 "Broadwell" Review

Performance goes up, energy consumption goes down? After a several-month delay, Intel has finally released the fifth incarnation of their "Core" architecture, c...
Intel Core M-5Y70 | Intel HD Graphics 5300 | 13.30" | 1.2 kg
HP Envy x2-j001ng Convertible Review

HP Envy x2-j001ng Convertible Review

Broadwell, the second. Following the Yoga 3, HP's Envy x2 is one of the first devices on the market that is based on Intel's new Broadwell technology. HP has cr...
Intel Core M-5Y70 | Intel HD Graphics 5300 | 13.30" | 1.8 kg
Lenovo Yoga 3 Pro Convertible Review

Lenovo Yoga 3 Pro Convertible Review

Often imitated, never duplicated. Lenovo was a first-mover in the 360-degree hinge segment, but they’re not content to rest on their laurels. Instead, the compa...
Intel Core M-5Y70 | Intel HD Graphics 5300 | 13.30" | 1.2 kg
First Impressions: Lenovo Yoga 3 Pro in Review

First Impressions: Lenovo Yoga 3 Pro in Review

Hello Broadwell! Intel introduces the next generation of CPU technology. Lenovo’s brand-new Yoga 3 Pro Convertible is one of the first devices with the new Core...
Intel Core M-5Y70 | Intel HD Graphics 5300 | 13.30" | 1.2 kg

Lenovo ThinkPad Helix 2-20CHS02A00: Intel HD Graphics 5300, 11.60", 1.4 kg
  External Review » Lenovo ThinkPad Helix 2-20CHS02A00

HP Envy X2-j001ng: Intel HD Graphics 5300, 13.30", 1.8 kg
  External Review » HP Envy X2-j001ng

Lenovo Yoga 3 Pro: Intel HD Graphics 5300, 13.30", 1.2 kg
  External Review » Lenovo Yoga 3 Pro

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Other CPUs of the series Core M

» Intel Core M-5Y71
   2x 1.2 GHz - 2.9 GHz
» Intel Core M-5Y51
   2x 1.1 GHz - 2.6 GHz
» Intel Core M-5Y70
   2x 1.1 GHz - 2.6 GHz
» Intel Core M-5Y31
   2x 0.9 GHz - 2.4 GHz
» Intel Core M-5Y10c
   2x 0.8 GHz - 2 GHz
» Intel Core M-5Y10a
   2x 0.8 GHz - 2 GHz
» Intel Core M-5Y10
   2x 0.8 GHz - 2 GHz

Surrounding CPUs

+ AMD A10-5745M
   4x 2.1 GHz - 2.9 GHz
+ AMD A8-5550M
   4x 2.1 GHz - 3.1 GHz
+ AMD A8-5557M
   4x 2.1 GHz - 3.1 GHz
+ Intel Core m3-6Y30
   2x 0.9 GHz - 2.2 GHz
+ Intel Core M-5Y51
   2x 1.1 GHz - 2.6 GHz
» Intel Core M-5Y70
   2x 1.1 GHz - 2.6 GHz
- Intel Celeron 4205U
   2x 1.8 GHz
- Intel Celeron 3867U
   2x 1.8 GHz
- Intel Celeron 3865U
   2x 1.8 GHz
- AMD FX-7500
   4x 2.1 GHz - 3.3 GHz
- Qualcomm Snapdragon 850
   8x 2.75 GHz - 2.96 GHz