Xeon E3-1205 v6 vs E3-1265L v3

Primary details

Comparing Xeon E3-1265L v3 and Xeon E3-1205 v6 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1430	1504
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.83	5.04
Market segment	Server	Server
Series	no data	Intel Xeon E3
Power efficiency	8.23	5.20
Architecture codename	Haswell-WS (2013−2014)	Kaby Lake (2016−2019)
Release date	2 June 2013 (11 years ago)	28 March 2017 (7 years ago)
Launch price (MSRP)	$710	$193

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E3-1205 v6 has 507% better value for money than Xeon E3-1265L v3.

Detailed specifications

Xeon E3-1265L v3 and Xeon E3-1205 v6 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	4
Base clock speed	2.5 GHz	3 GHz
Boost clock speed	3.7 GHz	3 GHz
Bus type	no data	DMI 3.0
Bus rate	5 GT/s	8 GT/s
Multiplier	no data	30
L1 cache	64 KB (per core)	256 KB
L2 cache	256 KB (per core)	1 MB
L3 cache	8192 KB (shared)	8 MB
Chip lithography	22 nm	14 nm
Die size	160 mm2	no data
Number of transistors	1,400 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	0.55V-1.52V

Compatibility

Information on Xeon E3-1265L v3 and Xeon E3-1205 v6 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 (Uniprocessor)
Socket	FCLGA1150	FCLGA1151
Power consumption (TDP)	45 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1265L v3 and Xeon E3-1205 v6. 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	no data
Hyper-Threading Technology	+	-
TSX	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	+	-
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Xeon E3-1265L v3 and Xeon E3-1205 v6 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1265L v3 and Xeon E3-1205 v6 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1265L v3 and Xeon E3-1205 v6. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR4-2400, DDR3L-1866
Maximum memory size	32 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	38.397 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 4th Generation Intel® Processors	Intel HD Graphics P630
Max video memory	no data	1.7 GB
Quick Sync Video	+	+
Clear Video	no data	+
Clear Video HD	+	+
Graphics max frequency	1.2 GHz	1 GHz
InTru 3D	+	+

Graphics interfaces

Available interfaces and connections of Xeon E3-1265L v3 and Xeon E3-1205 v6 integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Xeon E3-1265L v3 and Xeon E3-1205 v6 integrated GPUs, including resolutions over different interfaces.

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

Graphics API support

APIs supported by Xeon E3-1265L v3 and Xeon E3-1205 v6 integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.4

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1265L v3 and Xeon E3-1205 v6.

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	4.06	3.71
Recency	2 June 2013	28 March 2017
Threads	8	4
Chip lithography	22 nm	14 nm
Power consumption (TDP)	45 Watt	65 Watt

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Should you still have questions on choice between Xeon E3-1265L v3 and Xeon E3-1205 v6, ask them in Comments section, and we shall answer.

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