Core 2 Duo T6600 vs Core i5-4278U

Primary details

Comparing Core i5-4278U and Core 2 Duo T6600 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2010	2873
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i5	Intel Core 2 Duo
Power efficiency	5.99	1.35
Architecture codename	Haswell (2013−2015)	Penryn (2008−2011)
Release date	21 July 2014 (10 years ago)	6 January 2009 (15 years ago)
Launch price (MSRP)	$315	no data

Detailed specifications

Core i5-4278U and Core 2 Duo T6600 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	2.6 GHz	2.2 GHz
Boost clock speed	3.1 GHz	2.2 GHz
Bus rate	5 GT/s	800 MHz
L1 cache	128 KB	128 KB
L2 cache	512 KB	2 MB
L3 cache	3 MB	2 MB L2 Cache
Chip lithography	22 nm	45 nm
Die size	181 mm2	107 mm2
Maximum core temperature	100 °C	90 °C
Number of transistors	1300 Million	410 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	1V-1.25V

Compatibility

Information on Core i5-4278U and Core 2 Duo T6600 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	FCBGA1168	PGA478
Power consumption (TDP)	28 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-4278U and Core 2 Duo T6600. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	-
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	+	-
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	no data	-
FSB parity	no data	-

Security technologies

Core i5-4278U and Core 2 Duo T6600 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	no data
Identity Protection	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-4278U and Core 2 Duo T6600 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-4278U and Core 2 Duo T6600. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	no data
Maximum memory size	16 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel Iris Graphics 5100	no data
Max video memory	2 GB	no data
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.1 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-4278U and Core 2 Duo T6600 integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	-
HDMI	+	-

Graphics image quality

Maximum display resolutions supported by Core i5-4278U and Core 2 Duo T6600 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	3280x2000@60Hz	no data
Max resolution over DisplayPort	3200x2000@60Hz	no data

Graphics API support

APIs supported by Core i5-4278U and Core 2 Duo T6600 integrated GPUs, sometimes API versions are included.

DirectX	11.2/12	no data
OpenGL	4.3	no data

Peripherals

Specifications and connection of peripherals supported by Core i5-4278U and Core 2 Duo T6600.

PCIe version	2	no data
PCI Express lanes	12	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.

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Pros & cons summary

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Performance score	1.84	0.52
Recency	21 July 2014	6 January 2009
Threads	4	2
Chip lithography	22 nm	45 nm
Power consumption (TDP)	28 Watt	35 Watt

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Should you still have questions on choice between Core i5-4278U and Core 2 Duo T6600, ask them in Comments section, and we shall answer.

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