Core 2 Duo E6600 vs Core i5-660

Primary details

Comparing Core i5-660 and Core 2 Duo E6600 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2012	2673
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.10	3.46
Market segment	Desktop processor	Desktop processor
Series	no data	Core 2 Duo (Desktop)
Architecture codename	Clarkdale (2010−2011)	Conroe (2006−2007)
Release date	7 January 2010 (14 years ago)	no data
Launch price (MSRP)	$70	no data
Current price	$83 (1.2x MSRP)	$30

Cost-effectiveness evaluation

Performance per price, higher is better.

Core 2 Duo E6600 has 3360% better value for money than i5-660.

Detailed specifications

Core i5-660 and Core 2 Duo E6600 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	2 (Dual-core)	2 (Dual-core)
Threads	4	2
Base clock speed	3.33 GHz	no data
Boost clock speed	3.6 GHz	2.4 GHz
Bus support	no data	1066 MHz
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	no data
L3 cache	4 MB (shared)	no data
Chip lithography	32 nm	65 nm
Die size	81 mm2	no data
Maximum core temperature	73 °C	no data
Number of transistors	382 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core i5-660 and Core 2 Duo E6600 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	no data
Socket	FCLGA1156	no data
Power consumption (TDP)	73 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-660 and Core 2 Duo E6600. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	-	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data
FDI	+	no data
Status	Discontinued	no data

Security technologies

Core i5-660 and Core 2 Duo E6600 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 i5-660 and Core 2 Duo E6600 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-660 and Core 2 Duo E6600. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	16.38 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	no data
Clear Video HD	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-660 and Core 2 Duo E6600 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-660 and Core 2 Duo E6600.

PCIe version	2.0	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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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Core i5-660 outperforms Core 2 Duo E6600 by 161% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	1.54	0.59
Threads	4	2
Chip lithography	32 nm	65 nm
Power consumption (TDP)	73 Watt	65 Watt

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Should you still have questions on choice between Core i5-660 and Core 2 Duo E6600, ask them in Comments section, and we shall answer.

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