Athlon II X4 631 vs Pentium 3805U

Primary details

Comparing Pentium 3805U and Athlon II X4 631 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2656	2241
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Pentium	no data
Power efficiency	4.68	1.27
Architecture codename	Broadwell-U (2015)	Llano (2011−2012)
Release date	1 March 2015 (9 years ago)	17 August 2011 (13 years ago)
Launch price (MSRP)	$161	no data

Detailed specifications

Pentium 3805U and Athlon II X4 631 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	2.6 GHz
Boost clock speed	1.9 GHz	2.6 GHz
Bus rate	5 GT/s	no data
L1 cache	64K (per core)	128 KB (per core)
L2 cache	256K (per core)	1 MB (per core)
L3 cache	2 MB (shared)	0 KB
Chip lithography	14 nm	32 nm
Die size	82 mm2	228 mm2
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	105 °C	no data
Number of transistors	1300 Million	1,178 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium 3805U and Athlon II X4 631 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	FM1
Power consumption (TDP)	15 Watt	100 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 3805U and Athlon II X4 631. 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)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Smart Response	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Pentium 3805U and Athlon II X4 631 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 3805U and Athlon II X4 631 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 3805U and Athlon II X4 631. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	16 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

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

Graphics interfaces

Available interfaces and connections of Pentium 3805U and Athlon II X4 631 integrated GPUs.

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

Graphics API support

APIs supported by Pentium 3805U and Athlon II X4 631 integrated GPUs, sometimes API versions are included.

DirectX

11.2/12

no data

Peripherals

Specifications and connection of peripherals supported by Pentium 3805U and Athlon II X4 631.

PCIe version	2.0	no data
PCI Express lanes	12	no data

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.

---

Pros & cons summary

---

Performance score	0.77	1.39
Recency	1 March 2015	17 August 2011
Physical cores	2	4
Threads	2	4
Chip lithography	14 nm	32 nm
Power consumption (TDP)	15 Watt	100 Watt

---

Should you still have questions on choice between Pentium 3805U and Athlon II X4 631, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---