Xeon E3-1275 v3 vs i7-4771

Primary details

Comparing Core i7-4771 and Xeon E3-1275 v3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1325	1315
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.57	1.60
Market segment	Desktop processor	Server
Power efficiency	5.06	5.13
Architecture codename	Haswell (2013−2015)	Haswell-WS (2013−2014)
Release date	1 September 2013 (11 years ago)	2 June 2013 (11 years ago)
Launch price (MSRP)	$450	$531

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1275 v3 has 181% better value for money than i7-4771.

Detailed specifications

Core i7-4771 and Xeon E3-1275 v3 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	3.5 GHz	3.5 GHz
Boost clock speed	3.9 GHz	3.9 GHz
Bus rate	5 GT/s	5 GT/s
L1 cache	64 KB (per core)	64 KB (per core)
L2 cache	256 KB (per core)	256 KB (per core)
L3 cache	8 MB (shared)	8192 KB (shared)
Chip lithography	22 nm	22 nm
Die size	177 mm2	160 mm2
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	1,400 million	1,400 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i7-4771 and Xeon E3-1275 v3 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	FCLGA1150	FCLGA1150
Power consumption (TDP)	84 Watt	84 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4771 and Xeon E3-1275 v3. 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	+	+
Enhanced SpeedStep (EIST)	+	+
My WiFi	+	no data
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	+
SIPP	+	+
FDI	+	+
Fast Memory Access	no data	+

Security technologies

Core i7-4771 and Xeon E3-1275 v3 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 i7-4771 and Xeon E3-1275 v3 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-4771 and Xeon E3-1275 v3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3, DDR4
Maximum memory size	32 GB	32 GB
Max memory channels	2	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	Intel HD Graphics 4600	Intel HD P4600
Max video memory	2 GB	no data
Quick Sync Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.2 GHz	1.25 GHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Core i7-4771 and Xeon E3-1275 v3 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i7-4771 and Xeon E3-1275 v3 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 Xeon E3-1275 v3 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 Xeon E3-1275 v3.

PCIe version	Up to 3.0	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	4.49	4.55
Recency	1 September 2013	2 June 2013

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Should you still have questions on choice between Core i7-4771 and Xeon E3-1275 v3, ask them in Comments section, and we shall answer.

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