Atom D2550 vs Core 2 Quad Q8400s

Primary details

Comparing Core 2 Quad Q8400s and Atom D2550 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Atom
Architecture codename	Yorkfield (2007−2009)	Cedarview (2011−2012)
Release date	19 April 2009 (15 years ago)	1 November 2011 (13 years ago)

Detailed specifications

Core 2 Quad Q8400s and Atom D2550 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	2 (Dual-core)
Threads	4	4
Base clock speed	2.66 GHz	1.86 GHz
Boost clock speed	0.67 GHz	1.87 GHz
Bus rate	1333 MHz	no data
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	4 MB (shared)	512K (per core)
L3 cache	0 KB	0 KB
Chip lithography	45 nm	32 nm
Die size	2x 82 mm2	66 mm2
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	76 °C	no data
Number of transistors	456 million	176 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Quad Q8400s and Atom D2550 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCLGA775,LGA775	FCBGA559
Power consumption (TDP)	65 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400s and Atom D2550. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE2, Intel® SSE3, Intel® SSSE3
Enhanced SpeedStep (EIST)	+	-
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	-	no data
PAE	no data	36 Bit

Security technologies

Core 2 Quad Q8400s and Atom D2550 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q8400s and Atom D2550 are enumerated here.

VT-d	no data	-
VT-x	+	-
VT-i	no data	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400s and Atom D2550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3
Maximum memory size	no data	4 GB
Max memory channels	no data	1
Maximum memory bandwidth	no data	6.4 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

Intel Graphics Media Accelerator (GMA) 3650

Graphics interfaces

Available interfaces and connections of Core 2 Quad Q8400s and Atom D2550 integrated GPUs.

Number of displays supported

no data

2

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8400s and Atom D2550.

PCIe version	2.0	no data
PCI Express lanes	no data	4

Pros & cons summary

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Recency	19 April 2009	1 November 2011
Physical cores	4	2
Chip lithography	45 nm	32 nm
Power consumption (TDP)	65 Watt	10 Watt

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Should you still have questions on choice between Core 2 Quad Q8400s and Atom D2550, ask them in Comments section, and we shall answer.

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