Celeron 3965U vs Pentium 4405U

Primary details

Comparing Pentium 4405U and Celeron 3965U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2262	2417
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Pentium	Intel Celeron
Power efficiency	8.35	6.84
Architecture codename	Skylake (2015−2016)	Kaby Lake-U (2017)
Release date	1 September 2015 (9 years ago)	3 January 2017 (7 years ago)
Launch price (MSRP)	$161	$107

Detailed specifications

Pentium 4405U and Celeron 3965U 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)	2 (Dual-core)
Threads	4	2
Base clock speed	2.1 GHz	2.2 GHz
Boost clock speed	2.1 GHz	2.2 GHz
Bus type	OPI	OPI
Bus rate	4 GT/s	4 GT/s
Multiplier	21	22
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	2 MB	2 MB (shared)
Chip lithography	14 nm	14 nm
Die size	98.57 mm2	98.7 mm2
Maximum core temperature	100 °C	100 °C
Number of transistors	1750 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium 4405U and Celeron 3965U 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 (Uniprocessor)	1 (Uniprocessor)
Socket	FCBGA1356	FCBGA1356,FPBGA1356
Power consumption (TDP)	15 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 4405U and Celeron 3965U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
My WiFi	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
Smart Response	+	+

Security technologies

Pentium 4405U and Celeron 3965U technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	+
MPX	-	+
Identity Protection	+	-
SGX	Yes with Intel® ME	Yes with Intel® ME
OS Guard	-	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 4405U and Celeron 3965U are enumerated here.

AMD-V	+	+
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 4405U and Celeron 3965U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3, DDR4
Maximum memory size	32 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	34.134 GB/s	34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 510	Intel HD Graphics 610
Max video memory	32 GB	32 GB
Quick Sync Video	+	+
Clear Video	+	+
Clear Video HD	+	+
Graphics max frequency	950 MHz	900 MHz

Graphics interfaces

Available interfaces and connections of Pentium 4405U and Celeron 3965U integrated GPUs.

Number of displays supported	3	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
DVI	+	+

Graphics image quality

Maximum display resolutions supported by Pentium 4405U and Celeron 3965U integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	+
Max resolution over HDMI 1.4	4096x2304@24Hz	4096x2304@24Hz
Max resolution over eDP	4096x2304@60Hz	4096x2304@60Hz
Max resolution over DisplayPort	4096x2304@60Hz	4096x2304@60Hz
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Pentium 4405U and Celeron 3965U integrated GPUs, sometimes API versions are included.

DirectX	12	12
OpenGL	4.4	4.4

Peripherals

Specifications and connection of peripherals supported by Pentium 4405U and Celeron 3965U.

PCIe version	2.0	2.0
PCI Express lanes	10	10

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	1.33	1.09
Integrated graphics card	1.61	1.85
Recency	1 September 2015	3 January 2017
Threads	4	2

---

Should you still have questions on choice between Pentium 4405U and Celeron 3965U, 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.

---