Intel Atom E3845 vs Intel Pentium 4-M 2.40

Comparative analysis of Intel Atom E3845 and Intel Pentium 4-M 2.40 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 - Ocean Surface Simulation (Frames/s), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), CompuBench 1.5 Desktop - Face Detection (mPixels/s).

Intel Atom E3845

Intel Pentium 4-M 2.40

Differences

Reasons to consider the Intel Atom E3845

CPU is newer: launch date 10 year(s) 8 month(s) later
3 more cores, run more applications at once: 4 vs 1
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 130 nm
32x more L1 cache, more data can be stored in the L1 cache for quick access later
4x more L2 cache, more data can be stored in the L2 cache for quick access later
3.5x lower typical power consumption: 10 Watt vs 35 Watt
Around 10% better performance in PassMark - Single thread mark: 536 vs 487
4.9x better performance in PassMark - CPU mark: 1052 vs 213

Specifications (specs)
Launch date	October 2013 vs January 2003
Number of cores	4 vs 1
Manufacturing process technology	22 nm vs 130 nm
L1 cache	64 KB (per core) vs 8 KB
L2 cache	512 KB (per core) vs 512 KB
Thermal Design Power (TDP)	10 Watt vs 35 Watt
Benchmarks
PassMark - Single thread mark	536 vs 487
PassMark - CPU mark	1052 vs 213

Reasons to consider the Intel Pentium 4-M 2.40

Around 26% higher clock speed: 2.4 GHz vs 1.91 GHz
Around -350% higher maximum core temperature: 100°C vs -40°C to 110°C

Maximum frequency	2.4 GHz vs 1.91 GHz
Maximum core temperature	100°C vs -40°C to 110°C

Compare benchmarks

CPU 1: Intel Atom E3845
CPU 2: Intel Pentium 4-M 2.40

PassMark - Single thread mark

CPU 1

CPU 2

536

487

PassMark - CPU mark

CPU 1

CPU 2

1052

213

Name	Intel Atom E3845	Intel Pentium 4-M 2.40
PassMark - Single thread mark	536	487
PassMark - CPU mark	1052	213
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	9.495
GFXBench 4.0 - T-Rex (Frames)	1041
GFXBench 4.0 - T-Rex (Fps)	1041
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.787

Compare specifications (specs)

	Intel Atom E3845	Intel Pentium 4-M 2.40
Essentials
Architecture codename	Bay Trail	Northwood
Launch date	October 2013	January 2003
Place in performance rating	3031	3028
Processor Number	E3845
Series	Intel® Atom™ Processor E Series	Legacy Intel® Pentium® Processor
Status	Launched	Discontinued
Vertical segment	Embedded	Mobile
Performance
64 bit support
Base frequency	1.91 GHz	2.40 GHz
L1 cache	64 KB (per core)	8 KB
L2 cache	512 KB (per core)	512 KB
Manufacturing process technology	22 nm	130 nm
Maximum core temperature	-40°C to 110°C	100°C
Maximum frequency	1.91 GHz	2.4 GHz
Number of cores	4	1
Number of threads	4
Bus Speed		400 MHz FSB
Die size		131 mm2
Maximum case temperature (TCase)		100 °C
Transistor count		55 million
VID voltage range		1.3V
Memory
ECC memory support
Max memory channels	2
Maximum memory size	8 GB
Supported memory types	DDR3L 1333	DDR1, DDR2
Graphics
Graphics base frequency	542 MHz
Graphics max frequency	792 MHz
Intel® Quick Sync Video
Processor graphics	Intel HD Graphics
Graphics interfaces
Number of displays supported	2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	25mm x 27mm	35mm x 35mm
Sockets supported	FCBGA1170	PPGA478
Thermal Design Power (TDP)	10 Watt	35 Watt
Peripherals
Integrated IDE
Integrated LAN
Max number of PCIe lanes	4
PCI Express revision	2.0
PCIe configurations	x4, x2, x1
Total number of SATA ports	2
UART
USB revision	2.0, 3.0
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
HD Audio
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® vPro™ Platform Eligibility
FSB parity
Idle States
Intel® Demand Based Switching
Intel® Turbo Boost technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)