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Intel Pentium 3805U

Intel 3805U

The Intel Pentium 3805U is an entry-level, ULV (ultra low voltage) dual-core processor based on the Broadwell architecture, which has been launched in January 2015. In addition to two CPU cores clocked at 1.9 GHz (no Turbo or Hyper-Threading), the chip also integrates an HD Graphics GPU and a dual-channel DDR3(L)-1600 memory controller. The CPU is manufactured in a 14 nm process with FinFET transistors.


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.


Thanks to its improved architecture and the slightly higher clock rate, the Pentium 3805U should end up 15 - 20 percent faster than the Pentium 3556U (1.7 GHz, Haswell). Thus, the CPU has sufficient power for office and multimedia purposes as well as most applications.


The integrated HD Graphics (Broadwell) offers 12 Execution Units (EUs) clocked at 100 - 800 MHz. Similar to the CPU core, the GPU architecture (Intel Gen 8) has been thoroughly revised for improved performance-per-clock. We expect the HD Graphics (Broadwell) to beat the HD Graphics (Haswell) (10 EUs) as well as the HD Graphics 4200 (20 EUs), both part of the Haswell generation. Nevertheless, most games as of 2015 should be playable only in very low settings.

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

The Pentium 3805U is rated at a TDP of 15 W (10 W cTDP Down) including the graphics card, memory controller, VRMs and the integrated chipset. Therefore, the CPU is suited even for small subnotebooks 11-inches and greater.

SeriesIntel Pentium

Series: Pentium Broadwell

Intel Pentium 3825U compare1.9 GHz2 / 4 cores2 MB L3
Intel Pentium 3805U « 1.9 GHz2 / 2 cores2 MB L3
Clock Rate1900 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache2 MB
Number of Cores / Threads2 / 2
Power Consumption (TDP = Thermal Design Power)15 Watt
Transistor Count1300 Million
Manufacturing Technology14 nm
Die Size82 mm2
Max. Temperature105 °C
FeaturesDDR3(L)-1600 Memory Controller, Virtualization, Wireless Display, Quick Sync
GPUIntel HD Graphics (Broadwell) (100 - 800 MHz)
64 Bit64 Bit support
Starting Price$161 U.S.
Announcement Date01/05/2015


Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
1.8 Points (3%)
- 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 Pentium 3805U processor

Lenovo G70-80-80FF00A9GE: Intel HD Graphics (Broadwell), 17.30", 2.9 kg
  External Review » Lenovo G70-80-80FF00A9GE

Lenovo Yoga 500-15-80N6001JGE: Intel HD Graphics (Broadwell), 15.60", 1.8 kg
  External Review » Lenovo Yoga 500-15-80N6001JGE

Medion Akoya E7416T: Intel HD Graphics (Broadwell), 17.30", 3 kg
  External Review » Medion Akoya E7416T

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Other CPUs of the series Pentium

» Intel Pentium Gold 5405U
   2x 2.3 GHz
» Intel Pentium 4405U
   2x 2.1 GHz
» Intel Pentium 3560M
   2x 2.4 GHz
» Intel Pentium 2030M
   2x 2.5 GHz
» Intel Pentium 3550M
   2x 2.3 GHz
» Intel Pentium 2020M
   2x 2.4 GHz
» Intel Pentium 3825U
   2x 1.9 GHz
» Intel Pentium B980
   2x 2.4 GHz
» Intel Pentium 4405Y
   2x 1.5 GHz
» Intel Pentium B970
   2x 2.3 GHz
» Intel Pentium N4200
   4x 1.1 GHz - 2.5 GHz
» Intel Pentium B960
   2x 2.2 GHz
» Intel Pentium 3805U
   2x 1.9 GHz
» Intel Pentium B950
   2x 2.1 GHz
» Intel Pentium P6300
   2x 2.27 GHz
» Intel Pentium 2127U
   2x 1.9 GHz
» Intel Pentium B940
   2x 2 GHz
» Intel Pentium 3558U
   2x 1.7 GHz
» Intel Pentium 3556U
   2x 1.7 GHz
» Intel Pentium 2117U
   2x 1.8 GHz
» Intel Pentium P6200
   2x 2.13 GHz
» Intel Pentium P6100
   2x 2 GHz
» Intel Pentium N3540
   4x 2.16 GHz - 2.66 GHz
» Intel Pentium N3710
   4x 1.6 GHz - 2.56 GHz
» Intel Pentium P6000
   2x 1.86 GHz
» Intel Pentium J2900
   4x 2.41 GHz - 2.67 GHz
» Intel Pentium N3530
   4x 2.16 GHz - 2.58 GHz
» Intel Pentium N3700
   4x 1.6 GHz - 2.4 GHz
» Intel Pentium J2850
   4x 2.4 GHz
» Intel Pentium N3520
   4x 2.17 GHz - 2.42 GHz
» Intel Pentium N3510
   4x 2 GHz
» Intel Pentium 997
   2x 1.6 GHz
» Intel Pentium 987
   2x 1.5 GHz
» Intel Pentium 3561Y
   2x 1.2 GHz
» Intel Pentium 3560Y
   2x 1.2 GHz
» Intel Pentium 2129Y
   2x 1.1 GHz
» Intel Pentium 977
   2x 1.4 GHz
» Intel Pentium 967
   2x 1.3 GHz
» Intel Pentium U5600
   2x 1.33 GHz
» Intel Pentium 957
   2x 1.2 GHz
» Intel Pentium U5400
   2x 1.2 GHz
» Intel Pentium SU2700
   1x 1.3 GHz

Surrounding CPUs

+ Intel Celeron 1020M
   2x 2.1 GHz
+ Intel Core i3-350M
   2x 2.26 GHz
+ Intel Pentium Gold 4410Y
   2x 1.5 GHz
+ Intel Celeron 3965Y
   2x 1.5 GHz
+ Intel Pentium B960
   2x 2.2 GHz
» Intel Pentium 3805U
   2x 1.9 GHz
- AMD Phenom II X2 N640
   2x 2.9 GHz
- Intel Core 2 Extreme X7800
   2x 2.6 GHz
- Intel Core 2 Duo T7800
   2x 2.6 GHz
- Intel Core 2 Duo P8700
   2x 2.53 GHz
- Intel Core i3-4020Y
   2x 1.5 GHz
> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Intel Pentium 3805U Notebook Processor
Klaus Hinum (Update: 2014-10-10)