Intel Core i7-2655LE vs Intel Celeron 2957U

Comparative analysis of Intel Core i7-2655LE and Intel Celeron 2957U processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (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 Celeron 2957U

Differences

Reasons to consider the Intel Core i7-2655LE

2 more threads: 4 vs 2
Around 107% higher clock speed: 2.90 GHz vs 1.4 GHz
Around 4% higher maximum memory size: 16.6 GB vs 16 GB
Around 57% better performance in PassMark - Single thread mark: 1231 vs 784
2.3x better performance in PassMark - CPU mark: 1999 vs 860

Specifications (specs)
Number of threads	4 vs 2
Maximum frequency	2.90 GHz vs 1.4 GHz
Maximum memory size	16.6 GB vs 16 GB
Benchmarks
PassMark - Single thread mark	1231 vs 784
PassMark - CPU mark	1999 vs 860

Reasons to consider the Intel Celeron 2957U

A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 67% lower typical power consumption: 15 Watt vs 25 Watt

Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	15 Watt vs 25 Watt

Compare benchmarks

CPU 1: Intel Core i7-2655LE
CPU 2: Intel Celeron 2957U

PassMark - Single thread mark

CPU 1

CPU 2

1231

784

PassMark - CPU mark

CPU 1

CPU 2

1999

860

Name	Intel Core i7-2655LE	Intel Celeron 2957U
PassMark - Single thread mark	1231	784
PassMark - CPU mark	1999	860
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		6.97
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		107.823
CompuBench 1.5 Desktop - Video Composition (Frames/s)		4.97
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		5.777
GFXBench 4.0 - Car Chase Offscreen (Frames)		524
GFXBench 4.0 - Manhattan (Frames)		1874
GFXBench 4.0 - T-Rex (Frames)		3071
GFXBench 4.0 - Car Chase Offscreen (Fps)		524
GFXBench 4.0 - Manhattan (Fps)		1874
GFXBench 4.0 - T-Rex (Fps)		3071

Compare specifications (specs)

	Intel Core i7-2655LE	Intel Celeron 2957U
Essentials
Architecture codename	Sandy Bridge	Haswell
Launch date	Q1'11	1 January 2014
Place in performance rating	1901	1908
Processor Number	i7-2655LE	2957U
Series	Legacy Intel® Core™ Processors	Intel® Celeron® Processor 2000 Series
Status	Launched	Launched
Vertical segment	Embedded	Mobile
Launch price (MSRP)		$107
Performance
64 bit support
Base frequency	2.20 GHz	1.40 GHz
Bus Speed	5 GT/s DMI	5 GT/s DMI2
Manufacturing process technology	32 nm	22 nm
Maximum core temperature	100 C	100°C
Maximum frequency	2.90 GHz	1.4 GHz
Number of cores	2	2
Number of threads	4	2
L1 cache		128 KB
L2 cache		512 KB
L3 cache		2 MB
Memory
Max memory channels	2	2
Maximum memory size	16.6 GB	16 GB
Supported memory types	DDR3 1066/1333	DDR3L 1333/1600, LPDDR3 1333/1600
Maximum memory bandwidth		25.6 GB/s
Graphics
Graphics base frequency	650 MHz	200 MHz
Graphics max dynamic frequency	1.00 GHz	1.00 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 HD Graphics
Graphics max frequency		1 GHz
Intel® Clear Video technology
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 x 24mm x 1.5mm
Sockets supported	FCBGA1023	FCBGA1168
Thermal Design Power (TDP)	25 Watt	15 Watt
Max number of CPUs in a configuration		1
Peripherals
Max number of PCIe lanes	16	10
PCI Express revision	2.0	2.0
PCIe configurations	1x16, 2x8, 1x8+2x4	4x1, 1x4, 1x2
Integrated IDE
Integrated LAN
Max number of SATA 6 Gb/s Ports		2
Number of USB ports		4
PCI support
Total number of SATA ports		2
UART
USB revision		3.0
Security & Reliability
Intel® Identity Protection technology
Intel® Trusted Execution technology (TXT)
Anti-Theft technology
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 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)
General-Purpose Input/Output (GPIO)
HD Audio
Intel® Active Management technology (AMT)
Intel® ME Firmware Version		9.5
Intel® Rapid Storage technology (RST)
Intel® Smart Response technology
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Matrix Storage
Smart Connect
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™)