i7-2649M vs i7-4771

Primary details

Comparing Core i7-4771 and Core i7-2649M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1310	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.50	no data
Market segment	Desktop processor	Laptop
Series	no data	Intel Core i7
Power efficiency	5.06	no data
Architecture codename	Haswell (2013−2015)	Sandy Bridge (2011−2013)
Release date	1 September 2013 (11 years ago)	3 January 2011 (13 years ago)
Launch price (MSRP)	$450	$346

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-4771 and Core i7-2649M 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	3.5 GHz	2.3 GHz
Boost clock speed	3.9 GHz	3.2 GHz
Bus type	no data	DMI 2.0
Bus rate	5 GT/s	4 × 5 GT/s
Multiplier	no data	23
L1 cache	64 KB (per core)	128 KB
L2 cache	256 KB (per core)	512 KB
L3 cache	8 MB (shared)	4 MB
Chip lithography	22 nm	32 nm
Die size	177 mm2	149 mm2
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	1,400 million	624 Million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-4771 and Core i7-2649M 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 (Uniprocessor)
Socket	FCLGA1150	FCBGA1023
Power consumption (TDP)	84 Watt	25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4771 and Core i7-2649M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® AVX
AES-NI	+	+
FMA	-	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	+
Turbo Boost Technology	2.0	+
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	+
SIPP	+	-
Demand Based Switching	no data	-
FDI	+	+
Fast Memory Access	no data	+

Security technologies

Core i7-4771 and Core i7-2649M technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4771 and Core i7-2649M are enumerated here.

AMD-V	-	+
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4771 and Core i7-2649M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	32 GB	8.01 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel HD Graphics 4600	Intel HD Graphics 3000
Max video memory	2 GB	no data
Quick Sync Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.2 GHz	1.1 GHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Core i7-4771 and Core i7-2649M integrated GPUs.

Number of displays supported	3	2
eDP	+	+
DisplayPort	+	+
HDMI	+	+
DVI	+	no data
VGA	+	no data
SDVO	no data	+
CRT	no data	+

Graphics image quality

Maximum display resolutions supported by Core i7-4771 and Core i7-2649M integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	3840x2160@60Hz	no data
Max resolution over DisplayPort	3840x2160@60Hz	no data
Max resolution over VGA	1920x1200@60Hz	no data

Graphics API support

APIs supported by Core i7-4771 and Core i7-2649M 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 i7-4771 and Core i7-2649M.

PCIe version	Up to 3.0	2.0
PCI Express lanes	16	16

Pros & cons summary

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Integrated graphics card	1.84	0.66
Recency	1 September 2013	3 January 2011
Physical cores	4	2
Threads	8	4
Chip lithography	22 nm	32 nm
Power consumption (TDP)	84 Watt	25 Watt

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Should you still have questions on choice between Core i7-4771 and Core i7-2649M, ask them in Comments section, and we shall answer.

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