Intel Pentium E5400 vs Intel Pentium D 820

Comparative analysis of Intel Pentium E5400 and Intel Pentium D 820 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, 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 - Bitcoin Mining (mHash/s).

Intel Pentium E5400

Intel Pentium D 820

Differences

Reasons to consider the Intel Pentium E5400

CPU is newer: launch date 3 year(s) 8 month(s) later
Around 16% higher maximum core temperature: 74.1°C vs 64.1°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 90 nm
4.6x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 46% lower typical power consumption: 65 Watt vs 95 Watt
Around 78% better performance in Geekbench 4 - Single Core: 318 vs 179
Around 77% better performance in Geekbench 4 - Multi-Core: 543 vs 307

Specifications (specs)
Launch date	January 2009 vs May 2005
Maximum core temperature	74.1°C vs 64.1°C
Manufacturing process technology	45 nm vs 90 nm
L1 cache	64 KB (per core) vs 28 KB
Thermal Design Power (TDP)	65 Watt vs 95 Watt
Benchmarks
Geekbench 4 - Single Core	318 vs 179
Geekbench 4 - Multi-Core	543 vs 307

Reasons to consider the Intel Pentium D 820

Around 4% higher clock speed: 2.8 GHz vs 2.7 GHz

Maximum frequency	2.8 GHz vs 2.7 GHz
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: Intel Pentium E5400
CPU 2: Intel Pentium D 820

Geekbench 4 - Single Core

CPU 1

CPU 2

318

179

Geekbench 4 - Multi-Core

CPU 1

CPU 2

543

307

Name	Intel Pentium E5400	Intel Pentium D 820
PassMark - Single thread mark	1081
PassMark - CPU mark	989
Geekbench 4 - Single Core	318	179
Geekbench 4 - Multi-Core	543	307
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.302
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	13.111
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.076
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	2.098

Compare specifications (specs)

	Intel Pentium E5400	Intel Pentium D 820
Essentials
Architecture codename	Wolfdale	Smithfield
Launch date	January 2009	May 2005
Launch price (MSRP)	$55
Place in performance rating	3127	3302
Price now	$19.99
Processor Number	E5400	820
Series	Legacy Intel® Pentium® Processor	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Value for money (0-100)	23.54
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.70 GHz	2.80 GHz
Bus Speed	800 MHz FSB	800 MHz FSB
Die size	82 mm2	206 mm2
L1 cache	64 KB (per core)	28 KB
L2 cache	2048 KB (shared)	2048 KB
Manufacturing process technology	45 nm	90 nm
Maximum core temperature	74.1°C	64.1°C
Maximum frequency	2.7 GHz	2.8 GHz
Number of cores	2	2
Transistor count	228 million	230 million
VID voltage range	0.8500V-1.3625V	1.200V-1.400V
Front-side bus (FSB)		800 MHz
Number of threads		2
Memory
Supported memory types	DDR1, DDR2, DDR3	DDR1, DDR2, DDR3
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	LGA775	PLGA775
Thermal Design Power (TDP)	65 Watt	95 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
FSB parity
Physical Address Extensions (PAE)		32-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)