Intel Core 2 Duo E8400 vs Intel Pentium D 950

Comparative analysis of Intel Core 2 Duo E8400 and Intel Pentium D 950 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, 3DMark Fire Strike - Physics Score, 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 - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

Intel Core 2 Duo E8400

Intel Pentium D 950

Differences

Reasons to consider the Intel Core 2 Duo E8400

CPU is newer: launch date 2 year(s) 0 month(s) later
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
4.6x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
2x lower typical power consumption: 65 Watt vs 130 Watt
Around 78% better performance in PassMark - Single thread mark: 1237 vs 695
Around 76% better performance in PassMark - CPU mark: 1201 vs 681
Around 92% better performance in Geekbench 4 - Single Core: 422 vs 220
Around 90% better performance in Geekbench 4 - Multi-Core: 738 vs 389

Specifications (specs)
Launch date	January 2008 vs January 2006
Manufacturing process technology	45 nm vs 65 nm
L1 cache	128 KB vs 28 KB
L2 cache	6144 KB vs 4096 KB
Thermal Design Power (TDP)	65 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark	1237 vs 695
PassMark - CPU mark	1201 vs 681
Geekbench 4 - Single Core	422 vs 220
Geekbench 4 - Multi-Core	738 vs 389

Reasons to consider the Intel Pentium D 950

Around 13% higher clock speed: 3.4 GHz vs 3 GHz

Maximum frequency	3.4 GHz vs 3 GHz
Max number of CPUs in a configuration	2 vs 1

Compare benchmarks

CPU 1: Intel Core 2 Duo E8400
CPU 2: Intel Pentium D 950

PassMark - Single thread mark

CPU 1

CPU 2

1237

695

PassMark - CPU mark

CPU 1

CPU 2

1201

681

Geekbench 4 - Single Core

CPU 1

CPU 2

422

220

Geekbench 4 - Multi-Core

CPU 1

CPU 2

738

389

Name	Intel Core 2 Duo E8400	Intel Pentium D 950
PassMark - Single thread mark	1237	695
PassMark - CPU mark	1201	681
Geekbench 4 - Single Core	422	220
Geekbench 4 - Multi-Core	738	389
3DMark Fire Strike - Physics Score	2400
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.33
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	26.311
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.099
CompuBench 1.5 Desktop - Video Composition (Frames/s)	0.68
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	2.408

Compare specifications (specs)

	Intel Core 2 Duo E8400	Intel Pentium D 950
Essentials
Architecture codename	Wolfdale	Presler
Launch date	January 2008	January 2006
Place in performance rating	3020	3036
Price now	$129.95
Processor Number	E8400	950
Series	Legacy Intel® Core™ Processors	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Value for money (0-100)	4.87
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.00 GHz	3.40 GHz
Bus Speed	1333 MHz FSB	800 MHz FSB
Die size	107 mm2	162 mm2
L1 cache	128 KB	28 KB
L2 cache	6144 KB	4096 KB
Manufacturing process technology	45 nm	65 nm
Maximum case temperature (TCase)	72 °C
Maximum core temperature	72.4°C	C1+D0=63.4°C, B1=68.6°C
Maximum frequency	3 GHz	3.4 GHz
Number of cores	2	2
Transistor count	410 million	376 million
VID voltage range	0.8500V-1.3625V	1.200V-1.3375V
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	130 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring
Physical Address Extensions (PAE)		32-bit
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)