Core i5-3427U vs Core i7-965

Primary details

Comparing Core i7-965 and Core i5-3427U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1743	2079
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.45	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Core i5
Architecture codename	Bloomfield (2008−2010)	Ivy Bridge (2012−2013)
Release date	November 2008 (15 years ago)	1 June 2012 (12 years ago)
Launch price (MSRP)	$1,509	$225
Current price	$150 (0.1x MSRP)	$319 (1.4x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-965 and Core i5-3427U 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	3.2 GHz	1.8 GHz
Boost clock speed	3.46 GHz	2.8 GHz
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	256K (per core)
L3 cache	8 MB (shared)	3 MB (shared)
Chip lithography	45 nm	22 nm
Die size	263 mm2	118 mm2
Maximum core temperature	68 °C	105 °C
Number of transistors	731 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No

Compatibility

Information on Core i7-965 and Core i5-3427U 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	FCLGA1366	FCBGA1023
Power consumption (TDP)	130 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-965 and Core i5-3427U. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i7-965 and Core i5-3427U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-965 and Core i5-3427U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-965 and Core i5-3427U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3/L/-RS 1333/1600
Maximum memory size	24 GB	32 GB
Max memory channels	3	2
Maximum memory bandwidth	25.6 GB/s	25.6 GB/s
ECC memory support	-	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel HD Graphics 4000
Quick Sync Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.15 GHz
InTru 3D	no data	+

Graphics interfaces

Available interfaces and connections of Core i7-965 and Core i5-3427U integrated GPUs.

Number of displays supported	no data	3
eDP	no data	+
DisplayPort	no data	+
HDMI	no data	+
SDVO	no data	+
CRT	no data	+

Peripherals

Specifications and connection of peripherals supported by Core i7-965 and Core i5-3427U.

PCIe version	no data	2.0
PCI Express lanes	no data	16

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 i7-965 outperforms Core i5-3427U by 51% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	2.21	1.46
Physical cores	4	2
Threads	8	4
Cost	$1509	$225
Chip lithography	45 nm	22 nm
Power consumption (TDP)	130 Watt	17 Watt

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Should you still have questions on choice between Core i7-965 and Core i5-3427U, ask them in Comments section, and we shall answer.

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