Pentium J2900 vs Pentium 3805U

Place in the ranking	2677	2632
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Pentium	Intel Pentium
Power efficiency	4.67	7.47
Architecture codename	Broadwell-U (2015)	Bay Trail-D (2013)
Release date	1 March 2015 (9 years ago)	1 November 2013 (11 years ago)
Launch price (MSRP)	$161	$94

Detailed specifications

Pentium 3805U and Pentium J2900 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	4 (Quad-Core)
Threads	2	4
Base clock speed	1.9 GHz	2.41 GHz
Boost clock speed	1.9 GHz	2.66 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	224 KB
L2 cache	256K (per core)	2 MB
L3 cache	2 MB (shared)	2 MB L2 Cache
Chip lithography	14 nm	22 nm
Die size	82 mm²	no data
Maximum core temperature	105 °C	105 °C
Maximum case temperature (TCase)	105 °C	no data
Number of transistors	1300 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium 3805U and Pentium J2900 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA1168	FCBGA1170
Power consumption (TDP)	15 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 3805U and Pentium J2900. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Smart Response	-	no data
PAE	no data	36 Bit
FDI	+	-
Fast Memory Access	+	no data
RST	no data	-

Security technologies

Pentium 3805U and Pentium J2900 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-
OS Guard	-	no data
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 3805U and Pentium J2900 are enumerated here.

AMD-V	+	-
VT-d	+	-
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 3805U and Pentium J2900. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	16 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	21.3 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for 5th Generation Intel Processors	Intel HD Graphics for Intel Atom Processor Z3700 Series
Quick Sync Video	+	+
Clear Video	+	no data
Graphics max frequency	800 MHz	896 MHz
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Pentium 3805U and Pentium J2900 integrated GPUs.

Number of displays supported	3	2
eDP	+	no data
DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by Pentium 3805U and Pentium J2900 integrated GPUs, sometimes API versions are included.

DirectX

11.2/12

11.2

Peripherals

Specifications and connection of peripherals supported by Pentium 3805U and Pentium J2900.

PCIe version	2.0	2.0
PCI Express lanes	12	4
USB revision	no data	3.0 and 2.0
Total number of SATA ports	no data	2
Number of USB ports	no data	5

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Pentium 3805U 0.74

Pentium J2900 0.79
+6.8%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Pentium 3805U 1178

Pentium J2900 1250
+6.1%

Gaming performance

Pros & cons summary

Performance score	0.74	0.79
Recency	1 March 2015	1 November 2013
Physical cores	2	4
Threads	2	4
Chip lithography	14 nm	22 nm
Power consumption (TDP)	15 Watt	10 Watt

Pentium 3805U has an age advantage of 1 year, and a 57.1% more advanced lithography process.

Pentium J2900, on the other hand, has a 6.8% higher aggregate performance score, 100% more physical cores and 100% more threads, and 50% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Pentium 3805U and Pentium J2900.

Should you still have questions on choice between Pentium 3805U and Pentium J2900, ask them in Comments section, and we shall answer.