Core Ultra 7 155U vs Celeron M U3400

Primary details

Comparing Celeron M U3400 and Core Ultra 7 155U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	667
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron M	Intel Meteor Lake-U
Architecture codename	Arrandale (2010−2011)	Meteor Lake-P
Release date	24 May 2010 (13 years ago)	14 December 2023 (less than a year ago)

Detailed specifications

Celeron M U3400 and Core Ultra 7 155U 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)	12 (Dodeca-Core)
Threads	2	14
Base clock speed	no data	1.7 GHz
Boost clock speed	1.06 GHz	4.8 GHz
Bus support	2500 MHz	no data
L1 cache	no data	112 KB (per core)
L2 cache	512 KB	2 MB (per core)
L3 cache	2 MB	12 MB (shared)
Chip lithography	32 nm	7 nm
Die size	81+114 mm2	no data
Number of transistors	382+177 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Celeron M U3400 and Core Ultra 7 155U 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	no data	1
Socket	BGA1288	FCBGA2049
Power consumption (TDP)	18 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron M U3400 and Core Ultra 7 155U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	no data	+
AVX	no data	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Hyper-Threading Technology	no data	+
TSX	no data	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	+	+
SIPP	no data	-
Turbo Boost Max 3.0	no data	-
Fast Memory Access	+	no data
Status	no data	Launched

Security technologies

Celeron M U3400 and Core Ultra 7 155U technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron M U3400 and Core Ultra 7 155U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron M U3400 and Core Ultra 7 155U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5
Maximum memory size	no data	96 GB
Max memory channels	no data	2
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® Graphics
Quick Sync Video	no data	+
Graphics max frequency	no data	1.95 GHz

Graphics interfaces

Available interfaces and connections of Celeron M U3400 and Core Ultra 7 155U integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Celeron M U3400 and Core Ultra 7 155U integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	no data	3840x2400 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Celeron M U3400 and Core Ultra 7 155U integrated GPUs, sometimes API versions are included.

DirectX	no data	12.2
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Celeron M U3400 and Core Ultra 7 155U.

PCIe version	no data	4.0
PCI Express lanes	no data	20
PCI support	no data	4.0

Pros & cons summary

---

Recency	24 May 2010	14 December 2023
Physical cores	2	12
Threads	2	14
Chip lithography	32 nm	7 nm
Power consumption (TDP)	18 Watt	15 Watt

---

Should you still have questions on choice between Celeron M U3400 and Core Ultra 7 155U, 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.

---