Xeon E3-1240 v5 vs E3-1285 v6

Primary details

Comparing Xeon E3-1285 v6 and Xeon E3-1240 v5 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1150	1189
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.61	3.95
Market segment	Server	Server
Series	Intel Xeon E3	Intel Xeon E3
Power efficiency	6.60	6.15
Architecture codename	Kaby Lake-DT (2017)	Skylake-DT (2015)
Release date	1 August 2017 (7 years ago)	19 October 2015 (9 years ago)
Launch price (MSRP)	$450	$282

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1285 v6 has 42% better value for money than Xeon E3-1240 v5.

Detailed specifications

Xeon E3-1285 v6 and Xeon E3-1240 v5 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	4.1 GHz	3.5 GHz
Boost clock speed	4.5 GHz	3.9 GHz
Bus type	DMI 3.0	DMI 3.0
Bus rate	8 GT/s	4 × 8 GT/s
Multiplier	41	35
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	8 MB (shared)	8 MB (shared)
Chip lithography	14 nm	14 nm
Die size	160 mm2	122 mm2
Number of transistors	1,400 million	1,750 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Xeon E3-1285 v6 and Xeon E3-1240 v5 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 (Uniprocessor)
Socket	LGA-1151	FCLGA1151,FCLGA2011
Power consumption (TDP)	79 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1285 v6 and Xeon E3-1240 v5. 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)	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	+
Thermal Monitoring	+	+

Security technologies

Xeon E3-1285 v6 and Xeon E3-1240 v5 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
MPX	+	+
SGX	Yes with Intel® ME	Yes with both Intel® SPS and Intel® ME
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1285 v6 and Xeon E3-1240 v5 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1285 v6 and Xeon E3-1240 v5. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400, DDR3L-1866	DDR4-1866/2133, DDR3L-1333/1600
Maximum memory size	64 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	34.134 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics P630	N/A
Max video memory	64 GB	no data
Quick Sync Video	+	-
Clear Video	+	-
Clear Video HD	+	-
Graphics max frequency	1.15 GHz	no data
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Xeon E3-1285 v6 and Xeon E3-1240 v5 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E3-1285 v6 and Xeon E3-1240 v5 integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	-
Max resolution over HDMI 1.4	4096x2160@24Hz	N/A
Max resolution over eDP	4096x2304@60Hz	N/A
Max resolution over DisplayPort	4096x2304@60Hz	N/A
Max resolution over VGA	N/A	N/A

Graphics API support

APIs supported by Xeon E3-1285 v6 and Xeon E3-1240 v5 integrated GPUs, sometimes API versions are included.

DirectX	12	N/A
OpenGL	4.4	N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1285 v6 and Xeon E3-1240 v5.

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.

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Pros & cons summary

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Performance score	5.51	5.20
Recency	1 August 2017	19 October 2015
Power consumption (TDP)	79 Watt	80 Watt

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Should you still have questions on choice between Xeon E3-1285 v6 and Xeon E3-1240 v5, ask them in Comments section, and we shall answer.

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