Xeon E3-1265L v3: specs and benchmarks

Summary

Intel started Xeon E3-1265L v3 sales 2 June 2013 at a recommended price of $710. This is a Haswell-WS architecture desktop processor primarily aimed at office systems. It has 4 cores and 8 threads, and is based on 22 nm manufacturing technology, with a maximum frequency of 3700 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA1150 processor with a TDP of 45 Watt. It supports DDR3, DDR4 memory.

Primary details

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

Place in the ranking	1446
Place by popularity	not in top-100
Cost-effectiveness evaluation	0.88
Market segment	Server
Power efficiency	8.18	of 100.00 (Core Ultra 7 164U)
Architecture codename	Haswell-WS (2013−2014)
Release date	2 June 2013 (11 years ago)
Launch price (MSRP)	$710	of 17,906 (Xeon Platinum 8280L)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	4 (Quad-Core)
Threads	8
Base clock speed	2.5 GHz	of 4.7 GHz (FX-9590)
Boost clock speed	3.7 GHz	of 6.2 GHz (Core i9-14900KS)
Bus rate	5 GT/s
L1 cache	64 KB (per core)	of 80 KB (EPYC 9965)
L2 cache	256 KB (per core)
L3 cache	8192 KB (shared)	of 1152 MB (EPYC 9684X)
Chip lithography	22 nm	of 3 nm (Apple M3 Max 16-Core)
Die size	160 mm2
Number of transistors	1,400 million	of 135,240 million (EPYC 9684X)
64 bit support	+
Windows 11 compatibility	-

Compatibility

Information on Xeon E3-1265L v3 compatibility with other computer components and devices: 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	of 8 (Opteron 842)
Socket	FCLGA1150
Power consumption (TDP)	45 Watt	of 500 Watt (Xeon 6960P)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon E3-1265L v3. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+
AVX	+
vPro	+
Enhanced SpeedStep (EIST)	+
Turbo Boost Technology	2.0
Hyper-Threading Technology	+
TSX	+
Idle States	+
Thermal Monitoring	+
Flex Memory Access	+
SIPP	+
FDI	+
Fast Memory Access	+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT	+
EDB	+
Secure Key	+
Identity Protection	+
OS Guard	+
Anti-Theft	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon E3-1265L v3's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR3, DDR4
Maximum memory size	32 GB	of 6 TiB (EPYC 9124)
Max memory channels	2	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	25.6 GB/s	of 460.8 GB/s (EPYC 9124)
ECC memory support	+

Graphics specifications

General parameters of a GPU integrated into Xeon E3-1265L v3.

Integrated graphics card	Intel HD Graphics for 4th Generation Intel Processors
Quick Sync Video	+
Clear Video HD	+
Graphics max frequency	1.2 GHz
InTru 3D	+

Graphics interfaces

Available interfaces and connections of Xeon E3-1265L v3's integrated GPU.

Number of displays supported

3

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5.0 (Core i9-12900K)
PCI Express lanes	16	of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon E3-1265L v3. Overall benchmark performance 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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Closest competitors

Xeon E3-1265L v3's performance relative to its closest rivals among server CPUs.

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