Pentium U5400 vs Pentium 957

Primary details

Comparing Pentium 957 and Pentium U5400 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 Pentium	Intel Pentium
Architecture codename	Sandy Bridge (2011−2013)	Arrandale (2010−2011)
Release date	13 June 2011 (13 years ago)	25 May 2010 (14 years ago)
Launch price (MSRP)	$134	no data

Detailed specifications

Pentium 957 and Pentium U5400 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	1.2 GHz	1.2 GHz
Boost clock speed	1.2 GHz	1.2 GHz
Bus type	DMI 2.0	DMI 1.0
Bus rate	4 × 5 GT/s	1 × 2.5 GT/s
Multiplier	12	9
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	2 MB (shared)	3 MB (shared)
Chip lithography	32 nm	32 nm
Die size	131 mm2	81+114 mm2
Maximum core temperature	100 °C	105 °C
Number of transistors	504 million	384 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Pentium 957 and Pentium U5400 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	FCBGA1023	BGA1288
Power consumption (TDP)	17 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 957 and Pentium U5400. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
FMA	+	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	-	no data
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
Demand Based Switching	-	no data
PAE	no data	36 Bit
FDI	+	+
Fast Memory Access	+	+

Security technologies

Pentium 957 and Pentium U5400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 957 and Pentium U5400 are enumerated here.

VT-d	-	-
VT-x	-	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 957 and Pentium U5400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	8.01 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	21.335 GB/s	12.799 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics (Sandy Bridge)	Intel® HD Graphics for Previous Generation Intel® Processors
Clear Video	no data	+
Graphics max frequency	800 MHz	500 MHz

Graphics interfaces

Available interfaces and connections of Pentium 957 and Pentium U5400 integrated GPUs.

Number of displays supported	2	2
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Peripherals

Specifications and connection of peripherals supported by Pentium 957 and Pentium U5400.

PCIe version	2.0	2.0
PCI Express lanes	16	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Recency	13 June 2011	25 May 2010
Power consumption (TDP)	17 Watt	18 Watt

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