Intel Core i7-4578U vs Intel Core i7-620UM

Comparative analysis of Intel Core i7-4578U and Intel Core i7-620UM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, 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 - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - T-Rex (Frames/s).

Intel Core i7-4578U

Intel Core i7-620UM

Differences

Reasons to consider the Intel Core i7-4578U

CPU is newer: launch date 4 year(s) 6 month(s) later
Around 64% higher clock speed: 3.50 GHz vs 2.13 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
2x more maximum memory size: 16 GB vs 8 GB
2.3x better performance in PassMark - Single thread mark: 1934 vs 859
2.8x better performance in PassMark - CPU mark: 3104 vs 1091

Specifications (specs)
Launch date	21 July 2014 vs 4 January 2010
Maximum frequency	3.50 GHz vs 2.13 GHz
Manufacturing process technology	22 nm vs 32 nm
Maximum memory size	16 GB vs 8 GB
Benchmarks
PassMark - Single thread mark	1934 vs 859
PassMark - CPU mark	3104 vs 1091

Reasons to consider the Intel Core i7-620UM

Around 5% higher maximum core temperature: 105°C vs 100 °C
Around 56% lower typical power consumption: 18 Watt vs 28 Watt

Maximum core temperature	105°C vs 100 °C
Thermal Design Power (TDP)	18 Watt vs 28 Watt

Compare benchmarks

CPU 1: Intel Core i7-4578U
CPU 2: Intel Core i7-620UM

PassMark - Single thread mark

CPU 1

CPU 2

1934

859

PassMark - CPU mark

CPU 1

CPU 2

3104

1091

Name	Intel Core i7-4578U	Intel Core i7-620UM
PassMark - Single thread mark	1934	859
PassMark - CPU mark	3104	1091
Geekbench 4 - Single Core	788
Geekbench 4 - Multi-Core	1697
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.408
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	43.106
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.123
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	2.835
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.297

Compare specifications (specs)

	Intel Core i7-4578U	Intel Core i7-620UM
Essentials
Architecture codename	Haswell	Arrandale
Launch date	21 July 2014	4 January 2010
Launch price (MSRP)	$426	$278
Place in performance rating	2512	2465
Processor Number	i7-4578U	i7-620UM
Series	4th Generation Intel® Core™ i7 Processors	Legacy Intel® Core™ Processors
Status	Launched	Discontinued
Vertical segment	Mobile	Mobile
Performance
64 bit support
Base frequency	3.00 GHz	1.06 GHz
Bus Speed	5 GT/s DMI2	2.5 GT/s DMI
Die size	181 mm	81 mm2
L1 cache	128 KB
L2 cache	512 KB	512 KB
L3 cache	4 MB	4096 KB
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	100 °C	105°C
Maximum frequency	3.50 GHz	2.13 GHz
Number of cores	2	2
Number of threads	4	4
Transistor count	1300 Million	382 million
Front-side bus (FSB)		2500 MHz
Memory
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	12.8 GB/s
Maximum memory size	16 GB	8 GB
Supported memory types	DDR3L-1333, 1600; LPDDR3-1333, 1600	DDR3 800
Graphics
Device ID	0xA2E
Graphics base frequency	200 MHz	166 MHz
Graphics max dynamic frequency	1.20 GHz	500 MHz
Graphics max frequency	1.2 GHz	500 MHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	2 GB
Processor graphics	Intel® Iris® Graphics 5100	Intel HD Graphics
Intel® Clear Video technology
Graphics interfaces
DisplayPort
eDP
HDMI
Number of displays supported	3	2
VGA
Wireless Display (WiDi) support
Graphics image quality
Max resolution over DisplayPort	3200x2000@60Hz
Max resolution over HDMI 1.4	3200x2000@60Hz
Max resolution over VGA	N / A
Graphics API support
DirectX	11.2/12
OpenGL	4.3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	40mm x 24mm x 1.5mm	BGA 34mm x 28mm
Sockets supported	FCBGA1168	BGA1288
Thermal Design Power (TDP)	28 Watt	18 Watt
Peripherals
Max number of PCIe lanes	12	16
PCI Express revision	2	2.0
PCIe configurations	4x1, 2x4	1x16
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
Intel® Fast Memory Access
Intel® Flex Memory Access
Physical Address Extensions (PAE)		36-bit
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)