Intel Core i7-2655LE vs Intel Core i7-5557U

Comparative analysis of Intel Core i7-2655LE and Intel Core i7-5557U processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization, Graphics image quality, Graphics API support. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Core i7-2655LE

Intel Core i7-5557U

Differences

Reasons to consider the Intel Core i7-2655LE

Around 4% higher maximum memory size: 16.6 GB vs 16 GB
Around 12% lower typical power consumption: 25 Watt vs 28 Watt

Maximum memory size	16.6 GB vs 16 GB
Thermal Design Power (TDP)	25 Watt vs 28 Watt

Reasons to consider the Intel Core i7-5557U

Around 17% higher clock speed: 3.40 GHz vs 2.90 GHz
Around 5% higher maximum core temperature: 105°C vs 100 C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
Around 56% better performance in PassMark - Single thread mark: 1916 vs 1231
Around 55% better performance in PassMark - CPU mark: 3096 vs 1999

Specifications (specs)
Maximum frequency	3.40 GHz vs 2.90 GHz
Maximum core temperature	105°C vs 100 C
Manufacturing process technology	14 nm vs 32 nm
Benchmarks
PassMark - Single thread mark	1916 vs 1231
PassMark - CPU mark	3096 vs 1999

Compare benchmarks

CPU 1: Intel Core i7-2655LE
CPU 2: Intel Core i7-5557U

PassMark - Single thread mark

CPU 1

CPU 2

1231

1916

PassMark - CPU mark

CPU 1

CPU 2

1999

3096

Name	Intel Core i7-2655LE	Intel Core i7-5557U
PassMark - Single thread mark	1231	1916
PassMark - CPU mark	1999	3096
Geekbench 4 - Single Core		827
Geekbench 4 - Multi-Core		1802
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.936
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		43.279
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.279
CompuBench 1.5 Desktop - Video Composition (Frames/s)		1.13
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		2.964
GFXBench 4.0 - Car Chase Offscreen (Frames)		1425
GFXBench 4.0 - Manhattan (Frames)		1545
GFXBench 4.0 - T-Rex (Frames)		2859
GFXBench 4.0 - Car Chase Offscreen (Fps)		1425
GFXBench 4.0 - Manhattan (Fps)		1545
GFXBench 4.0 - T-Rex (Fps)		2859

Compare specifications (specs)

	Intel Core i7-2655LE	Intel Core i7-5557U
Essentials
Architecture codename	Sandy Bridge	Broadwell
Launch date	Q1'11	6 January 2015
Place in performance rating	1997	2010
Processor Number	i7-2655LE	i7-5557U
Series	Legacy Intel® Core™ Processors	5th Generation Intel® Core™ i7 Processors
Status	Launched	Launched
Vertical segment	Embedded	Mobile
Launch price (MSRP)		$426
Price now		$705
Value for money (0-100)		2.06
Performance
64 bit support
Base frequency	2.20 GHz	3.10 GHz
Bus Speed	5 GT/s DMI	5 GT/s DMI2
Manufacturing process technology	32 nm	14 nm
Maximum core temperature	100 C	105°C
Maximum frequency	2.90 GHz	3.40 GHz
Number of cores	2	2
Number of threads	4	4
Die size		133 mm
L1 cache		128 KB
L2 cache		512 KB
L3 cache		4 MB
Maximum case temperature (TCase)		105 °C
Transistor count		1900 Million
Memory
Max memory channels	2	2
Maximum memory size	16.6 GB	16 GB
Supported memory types	DDR3 1066/1333	DDR3L 1333/1600, LPDDR3 1600/1866
Maximum memory bandwidth		25.6 GB/s
Graphics
Graphics base frequency	650 MHz	300 MHz
Graphics max dynamic frequency	1.00 GHz	1.10 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics	Intel® HD Graphics 3000	Intel® Iris® Graphics 6100
Device ID		0x162B
Graphics max frequency		1.1 GHz
Intel® Clear Video technology
Max video memory		16 GB
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported	2	3
SDVO
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Package Size	31mm x 24mm (FCBGA1023)	40mm x24mm x 1.3mm
Sockets supported	FCBGA1023	FCBGA1168
Thermal Design Power (TDP)	25 Watt	28 Watt
Configurable TDP-down		23 W
Max number of CPUs in a configuration		1
Peripherals
Max number of PCIe lanes	16	12
PCI Express revision	2.0	2.0
PCIe configurations	1x16, 2x8, 1x8+2x4	4x1, 2x4
Security & Reliability
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Execute Disable Bit (EDB)
Intel® OS Guard
Intel® Secure Key technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Flexible Display interface (FDI)
Intel® Advanced Vector Extensions (AVX)
Intel® Smart Response technology
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)
Graphics image quality
Max resolution over DisplayPort		3840x2160@60Hz
Max resolution over HDMI 1.4		2560x1600@60Hz
Graphics API support
DirectX		11.2/12
OpenGL		4.3