EPYC 7281 vs Xeon E3-1240 v6

Primary details

Comparing Xeon E3-1240 v6 and EPYC 7281 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1134	530
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	7.61	5.19
Market segment	Server	Server
Series	Intel Xeon E3	AMD EPYC
Power efficiency	7.15	7.58
Architecture codename	Kaby Lake (2016−2019)	Naples (2017−2018)
Release date	28 March 2017 (7 years ago)	20 June 2017 (7 years ago)
Launch price (MSRP)	$272	$650

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1240 v6 has 47% better value for money than EPYC 7281.

Detailed specifications

Xeon E3-1240 v6 and EPYC 7281 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)	16 (Hexadeca-Core)
Threads	8	32
Base clock speed	3.7 GHz	2.1 GHz
Boost clock speed	4.1 GHz	2.1 GHz
Bus type	DMI 3.0	no data
Bus rate	8 GT/s	no data
Multiplier	37	21
L1 cache	256 KB	1.5 MB
L2 cache	1 MB	8 MB
L3 cache	8 MB	32 MB (shared)
Chip lithography	14 nm	14 nm
Die size	no data	213 mm2
Number of transistors	no data	19200 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	-	+

Compatibility

Information on Xeon E3-1240 v6 and EPYC 7281 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)	2 (Multiprocessor)
Socket	FCLGA1151	TR4
Power consumption (TDP)	72 Watt	155 W, 170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1240 v6 and EPYC 7281. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-
Status	Discontinued	no data

Security technologies

Xeon E3-1240 v6 and EPYC 7281 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
MPX	+	-
SGX	Yes with both Intel® SPS and Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1240 v6 and EPYC 7281 are enumerated here.

AMD-V	-	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1240 v6 and EPYC 7281. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400, DDR3L-1866	DDR4 Eight-channel
Maximum memory size	64 GB	2 TiB
Max memory channels	2	8
Maximum memory bandwidth	38.397 GB/s	170.671 GB/s
ECC memory support	+	+

Graphics image quality

Maximum display resolutions supported by Xeon E3-1240 v6 and EPYC 7281 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	N/A	no data
Max resolution over eDP	N/A	no data
Max resolution over DisplayPort	N/A	no data
Max resolution over VGA	N/A	no data

Graphics API support

APIs supported by Xeon E3-1240 v6 and EPYC 7281 integrated GPUs, sometimes API versions are included.

DirectX	N/A	no data
OpenGL	N/A	no data

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1240 v6 and EPYC 7281.

PCIe version	3.0	3.0
PCI Express lanes	16	128

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.

Pros & cons summary

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Performance score	5.66	14.16
Recency	28 March 2017	20 June 2017
Physical cores	4	16
Threads	8	32
Power consumption (TDP)	72 Watt	155 Watt

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Should you still have questions on choice between Xeon E3-1240 v6 and EPYC 7281, ask them in Comments section, and we shall answer.

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