i7-4771 vs i7-5775R

Primary details

Comparing Core i7-5775R and Core i7-4771 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1247	1312
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.54
Market segment	Desktop processor	Desktop processor
Series	Intel Core i7	no data
Power efficiency	6.97	5.06
Architecture codename	Broadwell (2015−2019)	Haswell (2013−2015)
Release date	15 May 2015 (9 years ago)	1 September 2013 (11 years ago)
Launch price (MSRP)	no data	$450

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-5775R and Core i7-4771 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)	4 (Quad-Core)
Threads	8	8
Base clock speed	3.3 GHz	3.5 GHz
Boost clock speed	3.8 GHz	3.9 GHz
Bus type	DMI 2.0	no data
Bus rate	5 GT/s	5 GT/s
Multiplier	33	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	6 MB (shared)	8 MB (shared)
Chip lithography	14 nm	22 nm
Die size	182 mm2	177 mm2
Maximum case temperature (TCase)	72 °C	72 °C
Number of transistors	no data	1,400 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-5775R and Core i7-4771 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	FCBGA1364	FCLGA1150
Power consumption (TDP)	65 Watt	84 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-5775R and Core i7-4771. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
eDRAM	128 MB	no data
My WiFi	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	+	+
Thermal Monitoring	+	+
SIPP	-	+
FDI	+	+

Security technologies

Core i7-5775R and Core i7-4771 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
Identity Protection	+	+
OS Guard	+	+
Anti-Theft	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-5775R and Core i7-4771 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-5775R and Core i7-4771. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3L-1333, DDR3L-1600, DDR3L-1866	DDR3
Maximum memory size	32 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	29.86 GB/s	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel Iris Pro Graphics 6200	Intel HD Graphics 4600
Max video memory	32 GB	2 GB
Quick Sync Video	+	+
Clear Video	+	no data
Clear Video HD	+	+
Graphics max frequency	1.15 GHz	1.2 GHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Core i7-5775R and Core i7-4771 integrated GPUs.

Number of displays supported	3	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
DVI	+	+
VGA	+	+

Graphics image quality

Maximum display resolutions supported by Core i7-5775R and Core i7-4771 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096x2304@24Hz	4096x2304@24Hz
Max resolution over eDP	3840x2160@60Hz	3840x2160@60Hz
Max resolution over DisplayPort	3840x2160@60Hz	3840x2160@60Hz
Max resolution over VGA	1920x1200@60Hz	1920x1200@60Hz

Graphics API support

APIs supported by Core i7-5775R and Core i7-4771 integrated GPUs, sometimes API versions are included.

DirectX	11.2	11.2/12
OpenGL	4.3	4.3

Peripherals

Specifications and connection of peripherals supported by Core i7-5775R and Core i7-4771.

PCIe version	3.0	Up to 3.0
PCI Express lanes	16	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.

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Pros & cons summary

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Performance score	4.79	4.49
Integrated graphics card	3.95	1.84
Recency	15 May 2015	1 September 2013
Chip lithography	14 nm	22 nm
Power consumption (TDP)	65 Watt	84 Watt

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Should you still have questions on choice between Core i7-5775R and Core i7-4771, ask them in Comments section, and we shall answer.

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