Pentium 3805U

Details and Benchmarks for Intel Pentium 3805U

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Pentium 3805U based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,241 Rank: 1611
Rank Name Score Visual
1607 A8-3820 4,244
+0.1%
1608 Celeron G540 4,242
+0%
1609 Pentium E5500 4,242
+0%
1610 Pentium G645T 4,242
+0%
1611 Pentium 3805U 4,241
1612 Athlon II X2 B24 4,241
+0%
1613 Athlon II X2 250 4,240
+-0%
1614 Athlon II X2 215 4,239
+-0%
1615 Celeron 4205U 4,239
+-0%
1616 Atom C3558 4,237
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Pentium 3805U based on multi-threaded benchmark results.

4,313 Rank: 1717
Rank Name Score Visual
1713 Core i5-2415M 4,314
+0%
1714 Celeron 2957U 4,314
+0%
1715 Core M 5Y71 4,313
+0%
1716 Athlon II X4 631 4,313
+0%
1717 Pentium 3805U 4,313
1718 A4-3420 4,313
+0%
1719 Core i5-8200Y 4,313
+0%
1720 Athlon 5150 4,313
+0%
1721 Celeron 3965Y 4,312
+-0%
1722 Pentium P6200 4,312
+-0%

View full ranking →

Singlecore Score

Single-core performance score for Pentium 3805U based on single-threaded benchmark results.

4,193 Rank: 1583
Rank Name Score Visual
1579 Celeron G540 4,196
+0.1%
1580 Pentium B960 4,195
+0%
1581 Celeron J4005 4,195
+0%
1582 Celeron 3865U 4,195
+0%
1583 Pentium 3805U 4,193
1584 Pentium G645T 4,192
+-0%
1585 A10-6700T 4,191
+-0%
1586 Athlon II X3 440 4,191
+-0%
1587 Celeron G1820TE 4,191
+-0%
1588 Athlon II X2 245 4,190
-0.1%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Pentium 3805U based on integer math, floating point math, and prime number computation benchmarks.

4,502 Rank: 1519
Rank Name Score Visual
1515 Core i5-4202Y 4,503
+0%
1516 Celeron 2950M 4,503
+0%
1517 Phenom II X3 700e 4,503
+0%
1518 Phenom II X2 560 4,502
+0%
1519 Pentium 3805U 4,502
1520 Celeron 2980U 4,502
+0%
1521 A6-5357M 4,502
+0%
1522 Celeron 3955U 4,501
+-0%
1523 Core i7-2610UE 4,501
+-0%
1524 Athlon II X3 435 4,501
+-0%

View full ranking →

Data Processing

Aggregated score for Pentium 3805U based on data encryption, data compression, and string sorting benchmarks.

4,457 Rank: 1615
Rank Name Score Visual
1611 A6-5350M 4,458
+0%
1612 E2-3200 4,458
+0%
1613 Celeron N3350 4,457
+0%
1614 Xeon W3503 4,457
+0%
1615 Pentium 3805U 4,457
1616 A6-9220 4,457
+0%
1617 A4-3300 4,457
+0%
1618 Pentium E5300 4,457
+0%
1619 Celeron E3400 4,457
+0%
1620 Pentium E5200 4,457
+0%

View full ranking →

Physics & Compute

Aggregated score for Pentium 3805U based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,483 Rank: 1516
Rank Name Score Visual
1512 Pentium B970 4,483
+0%
1513 A6-7400K 4,483
+0%
1514 Celeron G530 4,483
+0%
1515 Phenom II X2 560 4,483
+0%
1516 Pentium 3805U 4,483
1517 A6-3420M 4,483
+0%
1518 Celeron 2980U 4,483
+0%
1519 Core i3-380M 4,483
+0%
1520 Core i3-370M 4,483
+0%
1521 Athlon 5350 4,483
+0%

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Pentium 3805U Details

Built on Intel's Broadwell-U microarchitecture and fabricated on a 14 nm process, the Pentium 3805U represents a mid-tier mobile processor from 2015. Despite its age—now over a decade old—this dual-core, two-thread CPU remains relevant in legacy systems or low-power devices where integrated graphics and power efficiency are priorities. Launched with a modest MSRP of $161, the Pentium 3805U was designed for mainstream mobile computing, offering a balance between performance and thermal constraints. Its 15 W TDP makes it ideal for thin and light laptops, and it is packaged in a BGA1168 form factor, meaning it is soldered directly to the motherboard and not user-replaceable.

The processor operates at a base frequency of 1.9 GHz, with a maximum turbo frequency of 2.8 GHz, providing a modest boost under load. With 2 MB of L3 cache and a dual-channel DDR3L/DDR3 memory interface, it supports up to 16 GB of memory at a rated speed of 1600 MT/s, delivering a maximum memory bandwidth of 25.6 GB/s. While its 14 nm manufacturing process was advanced for its time, the lack of simultaneous multithreading and limited cache size restricts its ability to handle modern multitasking efficiently.

Integrated into the Pentium 3805U is Intel HD Graphics, which supports a maximum GPU frequency of 800 MHz and can drive up to three displays simultaneously. This makes it suitable for basic multimedia consumption and light creative work, though it falls short of handling modern gaming or GPU-intensive applications. The processor supports a range of Intel technologies, including AES-NI for encryption, AVX2 for vector processing, and virtualization features like VT-x and EPT, which enhance performance in virtualized environments.

Benchmarking reveals that the Pentium 3805U holds an overall score of 4241, placing it #1611 out of 2060 processors in the database. Its single-core performance scores 4193, ranking #1583, while its multicore score reaches 4313, placing it #1715. This indicates that the CPU performs better in single-threaded workloads than in multi-threaded ones, a trend common among older processors with limited core counts. It competes closely with other Intel Pentium and Celeron models from the same era, such as the Celeron 2957U and Pentium P6200, but trails behind more capable processors like the Core i7-2640M.

As of March 2026, the Pentium 3805U is best suited for basic office tasks, web browsing, and media playback in older or budget-oriented laptops. While it is no longer competitive in the modern computing landscape—especially when compared to top-tier processors like the Ryzen 9 9950X3D or Core Ultra 9 285K—it remains a functional option in devices where power efficiency and cost-effectiveness outweigh raw performance.
Frequently Compared

AMD Ryzen 7 2700X 26 views

Intel Core i9-9920X 23 views

AMD Ryzen Threadripper 2920X 22 views

AMD Phenom 9750 21 views

Intel Celeron G530 21 views

Intel Atom Z520 21 views

Intel Xeon W3505 20 views

AMD Ryzen 9 3900X 19 views

AMD Ryzen 9 PRO 3900 18 views

AMD Ryzen 5 3500X 18 views

Intel Pentium 3805U

Main Specifications

Designer: Intel
Name: Pentium 3805U
Model Number: 3805U
Cores: 2
Threads: 2
Base Frequency: 1900 MHz
Clock Multiplier: 19x (locked)
Core Name: Broadwell-U
Socket: FCBGA1168
Package: FC-BGA1168
Target Segment: Mobile
Max CPUs: 1
TDP: 15 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 1.907 MiB

Memory Specifications

Supported Memory Type: DDR3L 1333/1600 LPDDR3 1333/1600
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 12
PCIe Configuration: 4x1 2x4

Integrated Graphics

GPU: HD Graphics
GPU Designer: Intel
GPU Max Frequency: 800 MHz

Physical Specifications

Process: 14 nm
Die Area: 82 mm²
Manufacturer: Intel
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX2 AES ADX x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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