Intel Atom D2550 vs Intel Pentium D 945

Comparative analysis of Intel Atom D2550 and Intel Pentium D 945 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Advanced Technologies, Virtualization, Security & Reliability. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Atom D2550

Intel Pentium D 945

Differences

Reasons to consider the Intel Atom D2550

CPU is newer: launch date 5 year(s) 6 month(s) later
Around 58% higher maximum core temperature: 100 °C vs 63.4°C
A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 65 nm
4.6x more L1 cache, more data can be stored in the L1 cache for quick access later
9.5x lower typical power consumption: 10 Watt vs 95 Watt

Launch date	5 January 2012 vs July 2006
Maximum core temperature	100 °C vs 63.4°C
Manufacturing process technology	32 nm vs 65 nm
L1 cache	64 KB (per core) vs 28 KB
Thermal Design Power (TDP)	10 Watt vs 95 Watt

Reasons to consider the Intel Pentium D 945

Around 83% higher clock speed: 3.4 GHz vs 1.86 GHz
4x more L2 cache, more data can be stored in the L2 cache for quick access later
2.3x better performance in Geekbench 4 - Single Core: 220 vs 95
Around 44% better performance in Geekbench 4 - Multi-Core: 389 vs 271

Specifications (specs)
Maximum frequency	3.4 GHz vs 1.86 GHz
L2 cache	4096 KB vs 1024 KB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
Geekbench 4 - Single Core	220 vs 95
Geekbench 4 - Multi-Core	389 vs 271

Compare benchmarks

CPU 1: Intel Atom D2550
CPU 2: Intel Pentium D 945

Geekbench 4 - Single Core

CPU 1

CPU 2

220

Geekbench 4 - Multi-Core

CPU 1

CPU 2

271

389

Name	Intel Atom D2550	Intel Pentium D 945
PassMark - Single thread mark	322
PassMark - CPU mark	409
Geekbench 4 - Single Core	95	220
Geekbench 4 - Multi-Core	271	389

Compare specifications (specs)

	Intel Atom D2550	Intel Pentium D 945
Essentials
Architecture codename	Cedarview	Presler
Launch date	5 January 2012	July 2006
Place in performance rating	3275	3270
Processor Number	D2550	945
Series	Intel® Atom™ Processor D Series	Legacy Intel® Pentium® Processor
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	1.86 GHz	3.40 GHz
Die size	66 mm	162 mm2
L1 cache	64 KB (per core)	28 KB
L2 cache	1024 KB	4096 KB
Manufacturing process technology	32 nm	65 nm
Maximum core temperature	100 °C	63.4°C
Maximum frequency	1.86 GHz	3.4 GHz
Number of cores	2	2
Number of threads	4
Transistor count	176 million	376 million
VID voltage range	0.91V -1.21V	1.200V-1.3375V
Bus Speed		800 MHz FSB
Memory
Max memory channels	1
Maximum memory bandwidth	6.4 GB/s
Maximum memory size	4 GB
Supported memory types	DDR3 800/1066	DDR1, DDR2, DDR3
Graphics
Graphics base frequency	640 MHz
Processor graphics	Integrated
Graphics interfaces
Number of displays supported	2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	2
Package Size	22mm X 22 mm	37.5mm x 37.5mm
Sockets supported	FCBGA559	PLGA775
Thermal Design Power (TDP)	10 Watt	95 Watt
Peripherals
Max number of PCIe lanes	4
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Intel 64
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE)	36-bit	32-bit
FSB parity
Idle States
Intel® AES New Instructions
Intel® Demand Based Switching
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® Virtualization Technology for Itanium (VT-i)
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)