Intel Pentium 987 vs Intel Core i5-2557M

Comparative analysis of Intel Pentium 987 and Intel Core i5-2557M 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, 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).

Intel Pentium 987

Intel Core i5-2557M

Differences

Reasons to consider the Intel Pentium 987

CPU is newer: launch date 11 month(s) later
2x more maximum memory size: 16.38 GB vs 8.01 GB

Launch date	1 June 2012 vs 19 June 2011
Maximum memory size	16.38 GB vs 8.01 GB

Reasons to consider the Intel Core i5-2557M

2 more threads: 4 vs 2
Around 80% higher clock speed: 2.70 GHz vs 1.5 GHz
Around 50% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 73% better performance in PassMark - Single thread mark: 1081 vs 625
2.6x better performance in PassMark - CPU mark: 1713 vs 657
Around 48% better performance in Geekbench 4 - Single Core: 371 vs 251
Around 78% better performance in Geekbench 4 - Multi-Core: 790 vs 445

Specifications (specs)
Number of threads	4 vs 2
Maximum frequency	2.70 GHz vs 1.5 GHz
L3 cache	3072 KB vs 2048 KB
Benchmarks
PassMark - Single thread mark	1081 vs 625
PassMark - CPU mark	1713 vs 657
Geekbench 4 - Single Core	371 vs 251
Geekbench 4 - Multi-Core	790 vs 445

Compare benchmarks

CPU 1: Intel Pentium 987
CPU 2: Intel Core i5-2557M

PassMark - Single thread mark

CPU 1

CPU 2

625

1081

PassMark - CPU mark

CPU 1

CPU 2

657

1713

Geekbench 4 - Single Core

CPU 1

CPU 2

251

371

Geekbench 4 - Multi-Core

CPU 1

CPU 2

445

790

Name	Intel Pentium 987	Intel Core i5-2557M
PassMark - Single thread mark	625	1081
PassMark - CPU mark	657	1713
Geekbench 4 - Single Core	251	371
Geekbench 4 - Multi-Core	445	790
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		1.507
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		21.434
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.176
CompuBench 1.5 Desktop - Video Composition (Frames/s)		0.642
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		1.649

Compare specifications (specs)

	Intel Pentium 987	Intel Core i5-2557M
Essentials
Architecture codename	Sandy Bridge	Sandy Bridge
Launch date	1 June 2012	19 June 2011
Launch price (MSRP)	$134	$250
Place in performance rating	3054	3057
Processor Number	987	i5-2557M
Series	Legacy Intel® Pentium® Processor	Legacy Intel® Core™ Processors
Status	Launched	Launched
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	1.50 GHz	1.70 GHz
Bus Speed	5 DMI	5 GT/s DMI
Die size	131 mm	149 mm
L1 cache	128 KB	128 KB
L2 cache	512 KB	512 KB
L3 cache	2048 KB	3072 KB
Manufacturing process technology	32 nm	32 nm
Maximum core temperature	100 °C	100 C
Maximum frequency	1.5 GHz	2.70 GHz
Number of cores	2	2
Number of threads	2	4
Transistor count	504 million	624 Million
Memory
Max memory channels	2	2
Maximum memory bandwidth	21.3 GB/s	21.3 GB/s
Maximum memory size	16.38 GB	8.01 GB
Supported memory types	DDR3 1066/1333	DDR3 1066/1333
Graphics
Graphics base frequency	350 MHz	350 MHz
Graphics max dynamic frequency	1.00 GHz	1.20 GHz
Graphics max frequency	1 GHz	1.2 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	Intel® HD Graphics 3000
Device ID		0x116
Graphics interfaces
CRT
DisplayPort
eDP
HDMI
Number of displays supported	2	2
SDVO
Wireless Display (WiDi) support
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	31.0mm x 24.0mm (BGA1023)	31.0mm x 24.0mm (BGA1023)
Sockets supported	FCBGA1023	FCBGA1023
Thermal Design Power (TDP)	17 Watt	17 Watt
Peripherals
Max number of PCIe lanes	16	16
PCI Express revision	2.0	2.0
PCIe configurations	1x16, 2x8, 1x8 2x4	1x16, 2x8, 1x8 2x4
Security & Reliability
Anti-Theft technology
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Intel® Identity Protection technology
Advanced Technologies
4G WiMAX Wireless
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® AVX
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® My WiFi technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)