Intel Atom Z3775 vs Intel Core i7-660UM

Comparative analysis of Intel Atom Z3775 and Intel Core i7-660UM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Compatibility, Advanced Technologies, Virtualization, Graphics interfaces, Peripherals, Security & Reliability. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

Intel Atom Z3775

Intel Core i7-660UM

Differences

Reasons to consider the Intel Atom Z3775

2 more cores, run more applications at once: 4 vs 2
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm

Number of cores	4 vs 2
Manufacturing process technology	22 nm vs 32 nm

Reasons to consider the Intel Core i7-660UM

2x more maximum memory size: 8 GB vs 4 GB
Around 83% better performance in PassMark - Single thread mark: 925 vs 505
Around 82% better performance in PassMark - CPU mark: 1284 vs 704

Specifications (specs)
Maximum frequency	2.40 GHz vs 2.39 GHz
Maximum memory size	8 GB vs 4 GB
Benchmarks
PassMark - Single thread mark	925 vs 505
PassMark - CPU mark	1284 vs 704

Compare benchmarks

CPU 1: Intel Atom Z3775
CPU 2: Intel Core i7-660UM

PassMark - Single thread mark

CPU 1

CPU 2

505

925

PassMark - CPU mark

CPU 1

CPU 2

704

1284

Name	Intel Atom Z3775	Intel Core i7-660UM
PassMark - Single thread mark	505	925
PassMark - CPU mark	704	1284
Geekbench 4 - Single Core	1072
Geekbench 4 - Multi-Core	2997
GFXBench 4.0 - T-Rex (Frames)	1295
GFXBench 4.0 - T-Rex (Fps)	1295

Compare specifications (specs)

	Intel Atom Z3775	Intel Core i7-660UM
Essentials
Architecture codename	Bay Trail	Arrandale
Launch date	Q1'14	1 September 2010
Place in performance rating	2376	2368
Processor Number	Z3775	i7-660UM
Series	Intel® Atom™ Processor Z Series	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	1.46 GHz	1.33 GHz
Manufacturing process technology	22 nm	32 nm
Maximum frequency	2.39 GHz	2.40 GHz
Number of cores	4	2
Number of threads	4	4
Bus Speed		2.5 GT/s DMI
Die size		81 mm2
Front-side bus (FSB)		2500 MHz
L2 cache		512 KB
L3 cache		4096 KB
Maximum core temperature		105°C
Transistor count		382 million
Memory
Max memory channels	2	2
Maximum memory bandwidth	17.1 GB/s	12.8 GB/s
Maximum memory size	4 GB	8 GB
Supported memory types	LPDDR3 1066	DDR3 800
Graphics
Graphics base frequency	311 MHz	166 MHz
Graphics max frequency	778 MHz	500 MHz
Processor graphics	Intel HD Graphics	Intel HD Graphics
Graphics max dynamic frequency		500 MHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® Flexible Display Interface (Intel® FDI)
Compatibility
Low Halogen Options Available
Package Size	17mm x 17mm	BGA 34mm x 28mm
Scenario Design Power (SDP)	2 W
Sockets supported	UTFCBGA1380	BGA1288
Max number of CPUs in a configuration		1
Thermal Design Power (TDP)		18 Watt
Advanced Technologies
Intel 64
Intel® AES New Instructions
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions		Intel® SSE4.1, Intel® SSE4.2
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)		36-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
Graphics interfaces
Number of displays supported		2
Peripherals
Max number of PCIe lanes		16
PCI Express revision		2.0
PCIe configurations		1x16
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)