Pentium U5400 vs Atom Z3770

Place in the ranking	2934	3064
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	no data	Intel Pentium
Power efficiency	5.44	1.84
Architecture codename	Bay Trail-T (2013−2014)	Arrandale (2010−2011)
Release date	27 September 2013 (11 years ago)	25 May 2010 (14 years ago)
Launch price (MSRP)	$37	no data

Detailed specifications

Atom Z3770 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	4 (Quad-Core)	2 (Dual-core)
Threads	4	2
Base clock speed	1.46 GHz	1.2 GHz
Boost clock speed	2.39 GHz	1.2 GHz
Bus type	no data	DMI 1.0
Bus rate	no data	1 × 2.5 GT/s
Multiplier	no data	9
L1 cache	64K (per core)	64K (per core)
L2 cache	512K (per core)	256K (per core)
L3 cache	0 KB	3 MB (shared)
Chip lithography	22 nm	32 nm
Die size	no data	81+114 mm²
Maximum core temperature	90 °C	105 °C
Number of transistors	no data	384 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Atom Z3770 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	1 (Uniprocessor)
Socket	UTFCBGA1380	BGA1288
Power consumption (TDP)	8 Watt	18 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom Z3770 and Pentium U5400. You'll probably need this information if you require some particular technology.

AES-NI	+	-
FMA	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	no data	-
Hyper-Threading Technology	no data	-
Idle States	no data	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+
PAE	no data	36 Bit
FDI	no data	+
Fast Memory Access	no data	+

Security technologies

Atom Z3770 and Pentium U5400 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	-
EDB	no data	+
Secure Key	+	no data
Identity Protection	+	-
Anti-Theft	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom Z3770 and Pentium U5400 are enumerated here.

VT-d	no data	-
VT-x	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom Z3770 and Pentium U5400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	4 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	17.1 GB/s	12.799 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for Intel Atom Processor Z3700 Series	Intel HD Graphics for Previous Generation Intel Processors
Quick Sync Video	+	-
Clear Video	no data	+
Clear Video HD	+	no data
Graphics max frequency	667 MHz	500 MHz

Graphics interfaces

Available interfaces and connections of Atom Z3770 and Pentium U5400 integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Atom Z3770 and Pentium U5400.

PCIe version	no data	2.0
PCI Express lanes	no data	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.

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.

Atom Z3770 0.46
+31.4%

Pentium U5400 0.35

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.

Atom Z3770 736
+33.3%

Pentium U5400 552

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Atom Z3770 1189

Pentium U5400 1286
+8.1%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Atom Z3770 3961
+52.4%

Pentium U5400 2599

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

Atom Z3770 2212
+96.4%

Pentium U5400 1126

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Atom Z3770 26.55
+110%

Pentium U5400 55.75

Gaming performance

Pros & cons summary

Performance score	0.46	0.35
Recency	27 September 2013	25 May 2010
Physical cores	4	2
Threads	4	2
Chip lithography	22 nm	32 nm
Power consumption (TDP)	8 Watt	18 Watt

Atom Z3770 has a 31.4% higher aggregate performance score, an age advantage of 3 years, 100% more physical cores and 100% more threads, a 45.5% more advanced lithography process, and 125% lower power consumption.

The Atom Z3770 is our recommended choice as it beats the Pentium U5400 in performance tests.

Should you still have questions on choice between Atom Z3770 and Pentium U5400, ask them in Comments section, and we shall answer.