Celeron 4205U vs 3865U

Place in performance ranking	2433	2409
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Celeron
Architecture codename	Kaby Lake-U	Whiskey Lake-U (2018−2019)
Release date	3 January 2017 (7 years old)	23 January 2019 (5 years old)
Launch price (MSRP)	$107	$107
Current price	$296 (2.8x MSRP)	$452 (4.2x MSRP)

Technical specs

Celeron 3865U and Celeron 4205U 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	2	2
Base clock speed	1.8 GHz	1.8 GHz
Boost clock speed	1.8 GHz	1.8 GHz
L1 cache	64K (per core)	128 KB
L2 cache	256K (per core)	512 KB
L3 cache	2 MB (shared)	2 MB
Chip lithography	14 nm	14 nm
Die size	98.7 mm²	no data
Maximum core temperature	100 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No

Compatibility

Information on Celeron 3865U and Celeron 4205U 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	FCBGA1356,FPBGA1356	FCBGA1528
Power consumption (TDP)	15 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 3865U and Celeron 4205U. 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	+	no data
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
My WiFi	+	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	+	-
TSX	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	-	no data
Smart Response	+	+
Status	Discontinued	Discontinued

Security technologies

Celeron 3865U and Celeron 4205U technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	+
MPX	+	no data
Identity Protection	no data	+
SGX	Yes with Intel® ME	Yes with Intel® ME
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 3865U and Celeron 4205U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 3865U and Celeron 4205U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4, DDR3	DDR3, DDR4
Maximum memory size	32 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	34.1 GB/s	37.5 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 610	Intel® UHD Graphics for 8th Generation Intel® Processors
Max video memory	32 GB	32 GB
Quick Sync Video	+	+
Clear Video	+	+
Clear Video HD	+	+
Graphics max frequency	900 MHz	900 MHz

Graphics interfaces

Available interfaces and connections of Celeron 3865U and Celeron 4205U integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Celeron 3865U and Celeron 4205U 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

Graphics API support

APIs supported by Celeron 3865U and Celeron 4205U integrated GPUs, sometimes API versions are included.

DirectX	12	12
OpenGL	4.4	4.5

Peripherals

Specifications and connection of peripherals supported by Celeron 3865U and Celeron 4205U.

PCIe version	2.0	2.0
PCI Express lanes	10	12

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.

Celeron 3865U 0.85

Celeron 4205U 0.88
+3.5%

4205U outperforms 3865U by 4% based on our aggregated benchmark results.

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.

Benchmark coverage: 68%

Celeron 3865U 1316

Celeron 4205U 1363
+3.6%

4205U outperforms 3865U by 4% in Passmark.

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

Celeron 3865U 392
+11.4%

Celeron 4205U 352

3865U outperforms 4205U by 11% in GeekBench 5 Single-Core.

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

Celeron 3865U 691
+15.6%

Celeron 4205U 598

3865U outperforms 4205U by 16% in GeekBench 5 Multi-Core.