Intel Core 2 Duo T8100 vs Intel Pentium D 840 EE

Comparative analysis of Intel Core 2 Duo T8100 and Intel Pentium D 840 EE processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Memory. 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).

Intel Core 2 Duo T8100

Intel Pentium D 840 EE

Differences

Reasons to consider the Intel Core 2 Duo T8100

CPU is newer: launch date 2 year(s) 8 month(s) later
Around 50% higher maximum core temperature: 105°C vs 69.8°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 90 nm
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
3.7x lower typical power consumption: 35 Watt vs 130 Watt

Launch date	10 January 2008 vs May 2005
Maximum core temperature	105°C vs 69.8°C
Manufacturing process technology	45 nm vs 90 nm
L2 cache	3072 KB vs 2048 KB
Thermal Design Power (TDP)	35 Watt vs 130 Watt

Reasons to consider the Intel Pentium D 840 EE

Around 52% higher clock speed: 3.2 GHz vs 2.1 GHz

Maximum frequency	3.2 GHz vs 2.1 GHz

Compare benchmarks

CPU 1: Intel Core 2 Duo T8100
CPU 2: Intel Pentium D 840 EE

Name	Intel Core 2 Duo T8100	Intel Pentium D 840 EE
PassMark - Single thread mark	837
PassMark - CPU mark	779
Geekbench 4 - Single Core	295
Geekbench 4 - Multi-Core	512
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.23
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	15.035
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.075

Compare specifications (specs)

	Intel Core 2 Duo T8100	Intel Pentium D 840 EE
Essentials
Architecture codename	Penryn	Smithfield
Launch date	10 January 2008	May 2005
Launch price (MSRP)	$209
Place in performance rating	3170	not rated
Price now	$999.99
Processor Number	T8100	840
Series	Legacy Intel® Core™ Processors	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Value for money (0-100)	0.38
Vertical segment	Mobile	Desktop
Performance
64 bit support
Base frequency	2.10 GHz	3.20 GHz
Bus Speed	800 MHz FSB	800 MHz FSB
Die size	107 mm2	206 mm2
Front-side bus (FSB)	800 MHz
L2 cache	3072 KB	2048 KB
Manufacturing process technology	45 nm	90 nm
Maximum core temperature	105°C	69.8°C
Maximum frequency	2.1 GHz	3.2 GHz
Number of cores	2	2
Number of threads	2
Transistor count	410 million	230 million
VID voltage range	1.000V-1.250V	1.200-1.400V
L1 cache		28 KB
Compatibility
Low Halogen Options Available
Package Size	35mm x 35mm	37.5mm x 37.5mm
Sockets supported	PGA478, BGA479	PLGA775
Thermal Design Power (TDP)	35 Watt	130 Watt
Max number of CPUs in a configuration		2
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® AES New Instructions
Physical Address Extensions (PAE)		32-bit
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Memory
Supported memory types		DDR1, DDR2, DDR3