Xeon E3-1246 v3 vs E3-1275 v6

Primary details

Comparing Xeon E3-1275 v6 and Xeon E3-1246 v3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1013	1193
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.44	1.30
Market segment	Server	Server
Series	Intel Xeon E3	no data
Architecture codename	Kaby Lake (2016−2019)	no data
Release date	28 March 2017 (7 years ago)	1 April 2014 (10 years ago)
Launch price (MSRP)	$339	no data
Current price	$459 (1.4x MSRP)	$425

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1275 v6 has 242% better value for money than Xeon E3-1246 v3.

Detailed specifications

Xeon E3-1275 v6 and Xeon E3-1246 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	3.8 GHz	3.5 GHz
Boost clock speed	4.2 GHz	3.9 GHz
Bus support	8 GT/s	no data
L1 cache	256 KB	no data
L2 cache	1 MB	no data
L3 cache	8 MB	8 MB Intel® Smart Cache
Chip lithography	14 nm	22 nm
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon E3-1275 v6 and Xeon E3-1246 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	FCLGA1151	FCLGA1150
Power consumption (TDP)	73 Watt	84 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1275 v6 and Xeon E3-1246 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	+	no data
vPro	+	no data
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	no data	+
FDI	no data	+
Fast Memory Access	no data	+
Status	Launched	Discontinued

Security technologies

Xeon E3-1275 v6 and Xeon E3-1246 v3 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
MPX	+	no data
Identity Protection	no data	+
SGX	Yes with Intel® ME	no data
OS Guard	+	+
Anti-Theft	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1275 v6 and Xeon E3-1246 v3 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1275 v6 and Xeon E3-1246 v3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400, DDR3L-1866	DDR3L-1333, DDR3L-1600
Maximum memory size	64 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	37.5 GB/s	25.6 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics P630	no data
Max video memory	64 GB	1.7 GB
Quick Sync Video	+	+
Clear Video	+	no data
Clear Video HD	+	+
Graphics max frequency	1.15 GHz	1.2 GHz
Execution Units	no data	20
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Xeon E3-1275 v6 and Xeon E3-1246 v3 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E3-1275 v6 and Xeon E3-1246 v3 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2160@24Hz	3840x2160@60Hz
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	3840x2160@60Hz
Max resolution over VGA	N/A	2880x1800@60Hz

Graphics API support

APIs supported by Xeon E3-1275 v6 and Xeon E3-1246 v3 integrated GPUs, sometimes API versions are included.

DirectX	12	11.2
OpenGL	4.4	4.3

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1275 v6 and Xeon E3-1246 v3.

PCIe version	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.

E3-1275 v6 outperforms E3-1246 v3 by 28% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	6.01	4.70
Recency	28 March 2017	1 April 2014
Chip lithography	14 nm	22 nm
Power consumption (TDP)	73 Watt	84 Watt

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Should you still have questions on choice between Xeon E3-1275 v6 and Xeon E3-1246 v3, ask them in Comments section, and we shall answer.

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