Atom D510 vs i7-820QM

Primary details

Comparing Core i7-820QM and Atom D510 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2390	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	no data
Power efficiency	2.35	no data
Architecture codename	Clarksfield (2009−2010)	Pineview (2009−2011)
Release date	24 June 2009 (15 years ago)	21 December 2009 (14 years ago)
Launch price (MSRP)	$546	$97

Detailed specifications

Core i7-820QM and Atom D510 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	8	4
Base clock speed	1.73 GHz	1.66 GHz
Boost clock speed	3.06 GHz	1.67 GHz
Bus type	DMI 1.0	no data
Bus rate	2.5 GT/s	no data
Multiplier	13	no data
L1 cache	256 KB	64 KB (per core)
L2 cache	1 MB	512 KB (per core)
L3 cache	8 MB (shared)	0 KB
Chip lithography	45 nm	45 nm
Die size	296 mm2	66 mm2
Maximum core temperature	100 °C	100 °C
Number of transistors	774 million	176 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-820QM and Atom D510 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 (Uniprocessor)	1
Socket	FCPGA988,PGA988	FCBGA559
Power consumption (TDP)	45 Watt	13 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-820QM and Atom D510. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® SSE2, Intel® SSE3, Intel® SSSE3
vPro	+	no data
Enhanced SpeedStep (EIST)	+	-
Turbo Boost Technology	1.0	-
Hyper-Threading Technology	+	+
Idle States	+	-
Thermal Monitoring	+	-
Demand Based Switching	no data	-
PAE	36 Bit	32 Bit

Security technologies

Core i7-820QM and Atom D510 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-820QM and Atom D510 are enumerated here.

VT-d	+	-
VT-x	+	-
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-820QM and Atom D510. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1066, DDR3-1333	DDR2
Maximum memory size	8 GB	4 GB
Max memory channels	2	1
Maximum memory bandwidth	21.335 GB/s	6.4 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

None

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core i7-820QM and Atom D510.

PCIe version	2	no data
PCI Express lanes	16	no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Recency	24 June 2009	21 December 2009
Physical cores	4	2
Threads	8	4
Power consumption (TDP)	45 Watt	13 Watt

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Should you still have questions on choice between Core i7-820QM and Atom D510, ask them in Comments section, and we shall answer.

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