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Intel Core M-5Y71

Intel 5Y71

The Intel Core M-5Y71 is an ULV (ultra-low voltage) dual-core SoC based on the Broadwell architecture launched in late 2014. Thanks to its TDP of just 4.5 W (configurable), the CPU is suited for passively cooled tablets and 2-in-1 notebooks. In addition to two CPU cores with Hyper-Threading clocked at 1.2 - 2.9 GHz, the chip also integrates an HD Graphics 5300 GPU and a dual-channel LPDDR3/DDR3L(-RS) memory controller up to 25.6 GB/s. The chip 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-5Y71 offers a very wide turbo range from 1.2 - 2.9 GHz. However, the actual frequency is largely limited by the TDP. While the CPU is similar to a Core i7-4500U (Haswell, 15 W) in short benchmarks, its performance will begin 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-5Y71 will be 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 300 - 900 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. Current games as of 2014 will be 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 supported.

Power Consumption

With a TDP of only 4.5 W, the Core M-5Y71 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, affecting clock rates and performance (6 W: 1.4 GHz base clock, 3.5 W: 0.6 GHz base clock). The CPU can be passively cooled even in thin tablets.

SeriesIntel Core M
CodenameBroadwell

Series: Core M Broadwell

Intel Core M-5Y71 « 1.2 - 2.9 GHz2 / 4 cores4 MB L3
Intel Core M-5Y51 compare1.1 - 2.6 GHz2 / 4 cores4 MB L3
Intel Core M-5Y70 compare1.1 - 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 Rate1200 - 2900 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
SocketFCBGA1234
FeaturesHD Graphics 5300 (300 - 900 MHz), Dual-Channel DDR3L(-RS)/LPDDR3 Memory Controller (max. 800 MHz, 25.6 GB/s), HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, TSX-NI, vPro
GPUIntel HD Graphics 5300 (300 - 900 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date12/01/2014
Product Link (external)ark.intel.com

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 1.57     avg: 2.1     median: 2.1 (3%)     max: 2.64 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 0.66     avg: 1.1     median: 1.1 (28%)     max: 1.35 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 4909     avg: 6396     median: 6518 (5%)     max: 7640 points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 6212     avg: 8483     median: 8459 (6%)     max: 10802 Points
X264 HD Benchmark 4.0 - x264 Pass 2
min: 11.13     avg: 12.3     median: 11.5 (4%)     max: 14.43 fps
TrueCrypt - TrueCrypt Serpent
min: 0.144     avg: 0.1     median: 0.1 (4%)     max: 0.147 GB/s
TrueCrypt - TrueCrypt Twofish
min: 0.253     avg: 0.3     median: 0.3 (4%)     max: 0.255 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
min: 2296     avg: 2714     median: 2503 (5%)     max: 3343 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 13.11     avg: 13.2     median: 13.2 (3%)     max: 13.36 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 685     avg: 745     median: 774 (3%)     max: 776 s
3DMark 11 - 3DM11 Performance Physics
min: 1978     avg: 2519     median: 2522.5 (7%)     max: 3051 Points
3DMark - 3DMark Ice Storm Physics
min: 16771     avg: 25704     median: 25421.5 (21%)     max: 35200 Points
3DMark - 3DMark Cloud Gate Physics
min: 1552     avg: 2007     median: 2122.5 (5%)     max: 2230 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 2423     avg: 2925     median: 2946 (5%)     max: 3385 Points
Geekbench 3 - Geekbench 3 32 Bit Multi-Core
min: 4207     avg: 4278     median: 4277.5 (8%)     max: 4348 points
Geekbench 3 - Geekbench 3 32 Bit Single-Core
min: 2441     avg: 2467     median: 2467 (48%)     max: 2493 points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 2360     avg: 2552     median: 2552 (3%)     max: 2744 ms
Sunspider - Sunspider 1.0 Total Score *
min: 102.7     avg: 116.3     median: 108.1 (1%)     max: 138.1 ms
Octane V2 - Octane V2 Total Score
min: 13528     avg: 13618     median: 13618 (12%)     max: 13708 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-5Y71 processor

Dell Latitude 12 Rugged Tablet Review

Dell Latitude 12 Rugged Tablet Review

Tough. Rugged devices sometimes have to operate under the most adverse conditions. Dell's Latitude 12 Rugged tablet presents itself as a robust workhorse with s...
Intel Core M-5Y71 | Intel HD Graphics 5300 | 11.60" | 1.8 kg
Toshiba Portege Z20t-B Convertible Review

Toshiba Portege Z20t-B Convertible Review

Expensive runtime wonder. Toshiba charges a steep price of 2000 Euros (~$2138) for the top configuration of its latest business convertible – in return the user...
Intel Core M-5Y71 | Intel HD Graphics 5300 | 12.50" | 1.5 kg
Asus Transformer Book T300 Chi Convertible Review

Asus Transformer Book T300 Chi Convertible Review

Find your inner Zen with the Chi. The runaway success of the lauded Zenbook Ultrabooks and Transformer tablets have prompted Asus to create a whole new family o...
Intel Core M-5Y71 | Intel HD Graphics 5300 | 12.50" | 1.4 kg
Lenovo ThinkPad Helix 2 Tablet Review

Lenovo ThinkPad Helix 2 Tablet Review

No more fans. Core-M makes it possible: The new ThinkPad Helix 2 is available without a fan for the first time, but is still supposed to provide sufficient perf...
Intel Core M-5Y71 | Intel HD Graphics 5300 | 11.60" | 1.3 kg

Asus UX305FA-FB033H: Intel HD Graphics 5300, 13.30", 1.2 kg
  External Review » Asus UX305FA-FB033H

HP EliteBook Folio 1020, Core M-5Y71: Intel HD Graphics 5300, 12.50", 1.7 kg
  External Review » HP EliteBook Folio 1020, Core M-5Y71

Lenovo ThinkPad Helix-20CG0019GE: Intel HD Graphics 5300, 11.60", 1.4 kg
  External Review » Lenovo ThinkPad Helix-20CG0019GE

Dell Latitude 12 Rugged Tablet: Intel HD Graphics 5300, 11.60", 1.8 kg
  External Review » Dell Latitude 12 Rugged Tablet

Toshiba Portege Z20t-B-10C: Intel HD Graphics 5300, 12.50", 1.5 kg
  External Review » Toshiba Portege Z20t-B-10C

Lenovo ThinkPad Helix-20CG001BMH: Intel HD Graphics 5300, 11.60", 1.7 kg
  External Review » Lenovo ThinkPad Helix-20CG001BMH

Asus Zenbook UX305FA-FB033H: Intel HD Graphics 5300, 13.30", 1.2 kg
  External Review » Asus Zenbook UX305FA-FB033H

Toshiba Portege Z20t-B-10: Intel HD Graphics 5300, 12.50", 1.5 kg
  External Review » Toshiba Portege Z20t-B-10

HP Elite x2 1011 G1-L8D67UT: Intel HD Graphics 5300, 11.60", 0.9 kg
  External Review » HP Elite x2 1011 G1-L8D67UT

Asus Transformer Book T300 Chi: Intel HD Graphics 5300, 12.50", 1.4 kg
  External Review » Asus Transformer Book T300 Chi

Lenovo ThinkPad Helix 2: Intel HD Graphics 5300, 11.60", 1.3 kg
  External Review » Lenovo ThinkPad Helix 2

Toshiba Portege Z20t-B2112: Intel HD Graphics 5300, 12.50", 1.5 kg
  External Review » Toshiba Portege Z20t-B2112

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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

+ Intel Pentium Silver N5000
   4x 1.1 GHz - 2.7 GHz
+ Intel Core i5-430M
   2x 2.26 GHz - 2.53 GHz
+ AMD A10-5750M
   4x 2.5 GHz - 3.5 GHz
+ AMD A10-5757M
   4x 2.5 GHz - 3.5 GHz
+ Intel Core i7-2637M
   2x 1.7 GHz - 2.8 GHz
» Intel Core M-5Y71
   2x 1.2 GHz - 2.9 GHz
- AMD Phenom II X2 X640 BE
   2x 3.2 GHz
- AMD Phenom II X4 X940 BE
   4x 2.4 GHz
- Intel Core i7-2657M
   2x 1.6 GHz - 2.7 GHz
- Intel Core i7-3689Y
   2x 1.5 GHz - 2.6 GHz
- Intel Pentium 2020M
   2x 2.4 GHz