Mobile Sempron SI-40 vs Celeron M U3400

Primary details

Comparing Celeron M U3400 and Mobile Sempron SI-40 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron M	AMD Mobile Sempron
Architecture codename	Arrandale (2010−2011)	Sable (2008−2009)
Release date	24 May 2010 (14 years ago)	4 July 2008 (16 years ago)

Detailed specifications

Celeron M U3400 and Mobile Sempron SI-40 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)	1 (Single-Core)
Threads	2	1
Boost clock speed	1.06 GHz	2 GHz
Bus rate	2500 MHz	1800 MHz
L2 cache	512 KB	512 KB
L3 cache	2 MB	no data
Chip lithography	32 nm	65 nm
Die size	81+114 mm2	no data
Maximum core temperature	105 °C	100 °C
Number of transistors	382+177 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Celeron M U3400 and Mobile Sempron SI-40 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.

Socket	BGA1288	S1g2
Power consumption (TDP)	18 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron M U3400 and Mobile Sempron SI-40. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	65 nm, 1.075 - 1.125V
Enhanced SpeedStep (EIST)	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
Fast Memory Access	+	no data

Security technologies

Celeron M U3400 and Mobile Sempron SI-40 technologies aimed at improving security, for example, by protecting against hacks.

EDB

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron M U3400 and Mobile Sempron SI-40 are enumerated here.

VT-x

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron M U3400 and Mobile Sempron SI-40. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

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.

---

---

Pros & cons summary

---

Recency	24 May 2010	4 July 2008
Physical cores	2	1
Threads	2	1
Chip lithography	32 nm	65 nm
Power consumption (TDP)	18 Watt	25 Watt

---

Should you still have questions on choice between Celeron M U3400 and Mobile Sempron SI-40, 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.

---