Intel Core i7-4578U vs Intel Core i7-2820QM

Comparative analysis of Intel Core i7-4578U and Intel Core i7-2820QM 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 i7-2820QM

Differences

Reasons to consider the Intel Core i7-4578U

CPU is newer: launch date 3 year(s) 6 month(s) later
Around 3% higher clock speed: 3.50 GHz vs 3.40 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 32 nm
Around 61% lower typical power consumption: 28 Watt vs 45 Watt
Around 30% better performance in PassMark - Single thread mark: 1930 vs 1487
Around 28% better performance in Geekbench 4 - Single Core: 788 vs 617

Specifications (specs)
Launch date	21 July 2014 vs 3 January 2011
Maximum frequency	3.50 GHz vs 3.40 GHz
Manufacturing process technology	22 nm vs 32 nm
Thermal Design Power (TDP)	28 Watt vs 45 Watt
Benchmarks
PassMark - Single thread mark	1930 vs 1487
Geekbench 4 - Single Core	788 vs 617

Reasons to consider the Intel Core i7-2820QM

2 more cores, run more applications at once: 4 vs 2
4 more threads: 8 vs 4
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
2x more maximum memory size: 32 GB vs 16 GB
Around 41% better performance in PassMark - CPU mark: 4379 vs 3103
Around 32% better performance in Geekbench 4 - Multi-Core: 2236 vs 1697
Around 68% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 4.053 vs 2.408
Around 52% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 65.357 vs 43.106
Around 42% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 1.591 vs 1.123
Around 40% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 3.98 vs 2.835
Around 55% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.459 vs 0.297

Specifications (specs)
Number of cores	4 vs 2
Number of threads	8 vs 4
L1 cache	256 KB vs 128 KB
L2 cache	1024 KB vs 512 KB
L3 cache	8192 KB vs 4 MB
Maximum memory size	32 GB vs 16 GB
Benchmarks
PassMark - CPU mark	4379 vs 3103
Geekbench 4 - Multi-Core	2236 vs 1697
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	4.053 vs 2.408
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	65.357 vs 43.106
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.591 vs 1.123
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	3.98 vs 2.835
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.459 vs 0.297

Compare benchmarks

CPU 1: Intel Core i7-4578U
CPU 2: Intel Core i7-2820QM

PassMark - Single thread mark

CPU 1

CPU 2

1930

1487

PassMark - CPU mark

CPU 1

CPU 2

3103

4379

Geekbench 4 - Single Core

CPU 1

CPU 2

788

617

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1697

2236

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

CPU 1

CPU 2

2.408

4.053

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

CPU 1

CPU 2

43.106

65.357

CompuBench 1.5 Desktop - Video Composition (Frames/s)

CPU 1

CPU 2

1.123

1.591

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

CPU 1

CPU 2

2.835

3.98

CompuBench 1.5 Desktop - T-Rex (Frames/s)

CPU 1

CPU 2

0.297

0.459

Name	Intel Core i7-4578U	Intel Core i7-2820QM
PassMark - Single thread mark	1930	1487
PassMark - CPU mark	3103	4379
Geekbench 4 - Single Core	788	617
Geekbench 4 - Multi-Core	1697	2236
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	2.408	4.053
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	43.106	65.357
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.123	1.591
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	2.835	3.98
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.297	0.459

Compare specifications (specs)

	Intel Core i7-4578U	Intel Core i7-2820QM
Essentials
Architecture codename	Haswell	Sandy Bridge
Launch date	21 July 2014	3 January 2011
Launch price (MSRP)	$426	$568
Place in performance rating	2512	2519
Processor Number	i7-4578U	i7-2820QM
Series	4th Generation Intel® Core™ i7 Processors	Legacy Intel® Core™ Processors
Status	Launched	Launched
Vertical segment	Mobile	Mobile
Price now		$251.04
Value for money (0-100)		7.79
Performance
64 bit support
Base frequency	3.00 GHz	2.30 GHz
Bus Speed	5 GT/s DMI2	5 GT/s DMI
Die size	181 mm	216 mm
L1 cache	128 KB	256 KB
L2 cache	512 KB	1024 KB
L3 cache	4 MB	8192 KB
Manufacturing process technology	22 nm	32 nm
Maximum core temperature	100 °C	100 C
Maximum frequency	3.50 GHz	3.40 GHz
Number of cores	2	4
Number of threads	4	8
Transistor count	1300 Million	995 Million
Memory
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	25.6 GB/s
Maximum memory size	16 GB	32 GB
Supported memory types	DDR3L-1333, 1600; LPDDR3-1333, 1600	DDR3 1066/1333/1600
Graphics
Device ID	0xA2E	0x116
Graphics base frequency	200 MHz	650 MHz
Graphics max dynamic frequency	1.20 GHz	1.30 GHz
Graphics max frequency	1.2 GHz	1.3 GHz
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 3000
Graphics interfaces
DisplayPort
eDP
HDMI
Number of displays supported	3	2
VGA
Wireless Display (WiDi) support
CRT
SDVO
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	37.5 x 37.5mm (rPGA988B); 31.0 x 24.0mm (BGA1224)
Sockets supported	FCBGA1168	FCPGA988, FCBGA1224
Thermal Design Power (TDP)	28 Watt	45 Watt
Peripherals
Max number of PCIe lanes	12	16
PCI Express revision	2	2.0
PCIe configurations	4x1, 2x4	1x16, 2x8, 1x8+2x4
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Secure Key technology
Intel® Trusted Execution technology (TXT)
Anti-Theft technology
Advanced Technologies
Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® AVX
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
4G WiMAX Wireless
Intel® Demand Based Switching
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® My WiFi technology
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)