Intel Atom E3845 vs AMD Phenom II X3 P820

Comparative analysis of Intel Atom E3845 and AMD Phenom II X3 P820 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), Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Atom E3845

AMD Phenom II X3 P820

Differences

Reasons to consider the Intel Atom E3845

CPU is newer: launch date 3 year(s) 4 month(s) later
1 more cores, run more applications at once: 4 vs 3
1 more threads: 4 vs 3
Around 6% higher clock speed: 1.91 GHz vs 1.8 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 22 nm vs 45 nm
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
2.5x lower typical power consumption: 10 Watt vs 25 Watt

Launch date	October 2013 vs 12 May 2010
Number of cores	4 vs 3
Number of threads	4 vs 3
Maximum frequency	1.91 GHz vs 1.8 GHz
Manufacturing process technology	22 nm vs 45 nm
L2 cache	512 KB (per core) vs 1.5 MB
Thermal Design Power (TDP)	10 Watt vs 25 Watt

Reasons to consider the AMD Phenom II X3 P820

Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 34% better performance in PassMark - Single thread mark: 717 vs 536
Around 1% better performance in PassMark - CPU mark: 1068 vs 1058

Specifications (specs)
L1 cache	384 KB vs 64 KB (per core)
Benchmarks
PassMark - Single thread mark	717 vs 536
PassMark - CPU mark	1068 vs 1058

Compare benchmarks

CPU 1: Intel Atom E3845
CPU 2: AMD Phenom II X3 P820

PassMark - Single thread mark

CPU 1

CPU 2

536

717

PassMark - CPU mark

CPU 1

CPU 2

1058

1068

Name	Intel Atom E3845	AMD Phenom II X3 P820
PassMark - Single thread mark	536	717
PassMark - CPU mark	1058	1068
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
Geekbench 4 - Single Core		227
Geekbench 4 - Multi-Core		640

Compare specifications (specs)

	Intel Atom E3845	AMD Phenom II X3 P820
Essentials
Architecture codename	Bay Trail	Champlain
Launch date	October 2013	12 May 2010
Place in performance rating	3026	2978
Processor Number	E3845
Series	Intel® Atom™ Processor E Series	3x AMD Phenom II
Status	Launched
Vertical segment	Embedded	Laptop
Performance
64 bit support
Base frequency	1.91 GHz
L1 cache	64 KB (per core)	384 KB
L2 cache	512 KB (per core)	1.5 MB
Manufacturing process technology	22 nm	45 nm
Maximum core temperature	-40°C to 110°C
Maximum frequency	1.91 GHz	1.8 GHz
Number of cores	4	3
Number of threads	4	3
Front-side bus (FSB)		3600 MHz
Memory
ECC memory support
Max memory channels	2
Maximum memory size	8 GB
Supported memory types	DDR3L 1333
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
Package Size	25mm x 27mm
Sockets supported	FCBGA1170	S1
Thermal Design Power (TDP)	10 Watt	25 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
VirusProtect
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™)