Intel Core M-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.
Series | Intel Core M |
Codename | Broadwell |
Series: Core M Broadwell | |
Clock Rate | 1200 - 2900 MHz |
Level 1 Cache | 128 KB |
Level 2 Cache | 512 KB |
Level 3 Cache | 4 MB |
Number of Cores / Threads | 2 / 4 |
Power Consumption (TDP = Thermal Design Power) | 4.5 Watt |
Transistor Count | 1300 Million |
Manufacturing Technology | 14 nm |
Die Size | 82 mm2 |
Max. Temperature | 95 °C |
Socket | FCBGA1234 |
Features | HD 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 |
GPU | Intel HD Graphics 5300 (300 - 900 MHz) |
64 Bit | 64 Bit support |
Architecture | x86 |
Announcement Date | 12/01/2014 |
| |
Product Link (external) | Intel Core M 5Y71 |
Benchmarks
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 124 avg: 177 median: 187 (4%) max: 209 Points
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Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 62 avg: 90.5 median: 96 (35%) max: 108 Points
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Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 1.57 avg: 2.1 median: 2.1 (4%) max: 2.64 Points
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Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 0.66 avg: 1.1 median: 1.1 (36%) max: 1.35 Points
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Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 2341 avg: 3582 median: 3778 (34%) max: 4430 points
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Intel Core i7-940 -1%
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Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 4909 avg: 6396 median: 6518 (11%) max: 7640 points
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Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 6212 avg: 8483 median: 8459 (8%) max: 10802 Points
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Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 3117 avg: 4737 median: 5026.5 (38%) max: 5778 Points
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Intel Xeon X5670 -3%
Intel Core i7-960 2%
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wPrime 2.10 - wPrime 2.0 1024m *
633 s (7%)
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VIA C3-M C3-M-1200 1236%
wPrime 2.10 - wPrime 2.0 32m *
17.8 s (4%)
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min: 2327 avg: 2376 median: 2376 (15%) max: 2425 points
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X264 HD Benchmark 4.0 - x264 Pass 2
min: 11.13 avg: 12.3 median: 11.5 (5%) max: 14.43 fps
Intel Pentium 4 2.4 GHz -85%
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X264 HD Benchmark 4.0 - x264 Pass 1
min: 81.93 avg: 86.1 median: 85.1 (25%) max: 91.19 fps
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AMD Phenom II X4 905e 2%
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TrueCrypt - TrueCrypt Serpent
min: 0.144 avg: 0.1 median: 0.1 (6%) max: 0.147 GB/s
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TrueCrypt - TrueCrypt Twofish
min: 0.253 avg: 0.3 median: 0.3 (7%) max: 0.255 GB/s
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TrueCrypt - TrueCrypt AES
min: 1.5 avg: 1.5 median: 1.5 (6%) max: 1.6 GB/s
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3DMark 06 - CPU - 3DMark 06 - CPU
min: 2296 avg: 2714 median: 2503 (14%) max: 3343 Points
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Intel Core 2 Duo (Desktop) E6850 -2%
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Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 13.109 avg: 13.2 median: 13.2 (3%) max: 13.36 s
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Intel Core i7-940 0%
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VIA C3-M C3-M-1200 3408%
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 30.012 avg: 30.2 median: 30.3 (1%) max: 30.329 s
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Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 685.138 avg: 745 median: 774.5 (3%) max: 776.339 s
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VIA C3-M C3-M-1200 2922%
3DMark 11 - 3DM11 Performance Physics
min: 1978 avg: 2519 median: 2522.5 (10%) max: 3051 Points
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3DMark - 3DMark Ice Storm Physics
min: 16771 avg: 25704 median: 25421.5 (16%) max: 35200 Points
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3DMark - 3DMark Ice Storm Extreme Physics
23600 Points (25%)
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3DMark - 3DMark Ice Storm Unlimited Physics
38906 Points (40%)
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3DMark - 3DMark Cloud Gate Physics
min: 1552 avg: 2007 median: 2122.5 (5%) max: 2230 Points
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3DMark - 3DMark Fire Strike Standard Physics
min: 2423 avg: 2925 median: 2946 (7%) max: 3385 Points
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Geekbench 2 - 32 Bit - Geekbench Stream
6909 Points (56%)
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Geekbench 2 - 32 Bit - Geekbench Memory
5593 Points (51%)
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Geekbench 2 - 32 Bit - Geekbench Floating Point
4769 Points (9%)
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Geekbench 2 - 32 Bit - Geekbench Integer
5624 Points (11%)
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Geekbench 2 - 32 Bit - Geekbench Total Score
5447 Points (14%)
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AMD Phenom II X4 905e -5%
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Geekbench 3 - Geekbench 3 32 Bit Multi-Core
min: 4207 avg: 4278 median: 4277.5 (8%) max: 4348 points
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Geekbench 3 - Geekbench 3 32 Bit Single-Core
min: 2441 avg: 2467 median: 2467 (51%) max: 2493 points
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Geekbench 3 - Geekbench 3 64 Bit Multi-Core
4637 points (7%)
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Geekbench 3 - Geekbench 3 64 Bit Single-Core
2680 points (55%)
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Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 2360.3 avg: 2552 median: 2552.4 (4%) max: 2744.4 ms
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Sunspider - Sunspider 1.0 Total Score *
min: 102.7 avg: 116 median: 108.1 (1%) max: 138.1 ms
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Octane V2 - Octane V2 Total Score
min: 13528 avg: 13618 median: 13618 (22%) max: 13708 Points
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- Range of benchmark values for this graphics card

- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
v1.16
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Reviews for the Intel Core M 5Y71 processor
Asus Transformer Book T300 Chi (Intel HD Graphics 5300, 12.50")
» Asus Transformer Book T300 Chi Convertible Review - Review
» Asus Transformer Book T300 Chi - External Review
Asus UX305FA-FB033H (Intel HD Graphics 5300, 13.30")
» Asus UX305FA-FB033H - External Review
Asus Zenbook UX305FA-FB033H (Intel HD Graphics 5300, 13.30")
» Asus Zenbook UX305FA-FB033H - External Review
Dell Latitude 12 Rugged Tablet (Intel HD Graphics 5300, 11.60")
» Dell Latitude 12 Rugged Tablet Review - Review
» Dell Latitude 12 Rugged Tablet - External Review
HP Elite x2 1011 G1-L8D67UT (Intel HD Graphics 5300, 11.60")
» HP Elite x2 1011 G1-L8D67UT - External Review
HP EliteBook Folio 1020, Core M-5Y71 (Intel HD Graphics 5300, 12.50")
» HP EliteBook Folio 1020, Core M-5Y71 - External Review
Lenovo ThinkPad Helix 2 (Intel HD Graphics 5300, 11.60")
» Lenovo ThinkPad Helix 2 Tablet Review - Review
» Lenovo ThinkPad Helix 2 - External Review
Lenovo ThinkPad Helix-20CG0019GE (Intel HD Graphics 5300, 11.60")
» Lenovo ThinkPad Helix-20CG0019GE - External Review
Lenovo ThinkPad Helix-20CG001BMH (Intel HD Graphics 5300, 11.60")
» Lenovo ThinkPad Helix-20CG001BMH - External Review
Toshiba Portege Z20t-B-10 (Intel HD Graphics 5300, 12.50")
» Toshiba Portege Z20t-B-10 - External Review
Toshiba Portege Z20t-B-10C (Intel HD Graphics 5300, 12.50")
» Toshiba Portege Z20t-B Convertible Review - Review
» Toshiba Portege Z20t-B-10C - External Review
Toshiba Portege Z20t-B2112 (Intel HD Graphics 5300, 12.50")
» Toshiba Portege Z20t-B2112 - External Review
Other CPUs of the series Core M
Surrounding CPUs