INTEL

Intel Xeon E3-1265L v4

Intel processor specifications and benchmark scores

4
Cores
8
Threads
3.3
GHz Boost
35W
TDP
🖥️Integrated GPU 🛡️ECC Memory

Intel Xeon E3-1265L v4 Specifications

⚙️

Xeon E3-1265L v4 Core Configuration

Processing cores and threading

The Intel Xeon E3-1265L v4 features 4 physical cores and 8 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
4
Threads
8
SMP CPUs
1
⏱️

E3-1265L v4 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Xeon E3-1265L v4 benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Xeon E3-1265L v4 by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.3 GHz
Boost Clock
3.3 GHz
Multiplier
23x
💾

Intel's Xeon E3-1265L v4 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the E3-1265L v4 processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Xeon E3-1265L v4's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
256 KB (per core)
L3 Cache
6 MB (shared)
L4 Cache
128 MB (shared)
🏗️

Broadwell Architecture & Process

Manufacturing and design details

The Intel Xeon E3-1265L v4 is built on Intel's 14 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in E3-1265L v4 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Broadwell
Codename
Broadwell-DT
Process Node
14 nm
Foundry
Intel
Die Size
182 mm²
Generation
Xeon E3 (Broadwell-DT)
🔢

Broadwell Instruction Set Features

Supported CPU instructions and extensions

The Xeon E3-1265L v4 by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.1
SSE4.2
AVX
AVX2
FMA3
AES-NI
F16C
BMI1
BMI2
Intel 64
VT-x
VT-d
🔌

E3-1265L v4 Power & Thermal

TDP and power specifications

The Intel Xeon E3-1265L v4 has a TDP (Thermal Design Power) of 35W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
35W
🔧

Intel Socket 1150 Platform & Socket

Compatibility information

The Xeon E3-1265L v4 uses the Intel Socket 1150 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 1150
PCIe
Gen 3, 16 Lanes(CPU only)
Package
FC-LGA14C
DDR5

Intel Socket 1150 Memory Support

RAM compatibility and speeds

Memory support specifications for the E3-1265L v4 define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Xeon E3-1265L v4 determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR3
Memory Bus
Dual-channel
Memory Bandwidth
29.9 GB/s
ECC Memory
Supported
🖥️

Intel's Xeon E3-1265L v4 Integrated Graphics

Built-in GPU specifications

The Intel Xeon E3-1265L v4 includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the E3-1265L v4 provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
Intel Iris Pro P6300
Graphics Model
Intel Iris Pro P6300
📦

Xeon E3-1265L v4 Product Information

Release and pricing details

The Intel Xeon E3-1265L v4 is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Xeon E3-1265L v4 by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Jun 2015
Launch Price
$417
Market
Server/Workstation
Status
End-of-life
Part Number
SR2B3

Xeon E3-1265L v4 Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Xeon E3-1265L v4 performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #1032 of 1788
595
4%
Max: 14,978

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how Intel Xeon E3-1265L v4 handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance.

cinebench_cinebench_r15_singlecore #1023 of 1245
84
4%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Xeon E3-1265L v4.

cinebench_cinebench_r20_multicore #1032 of 1788
2,482
4%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Xeon E3-1265L v4.

cinebench_cinebench_r20_singlecore #1033 of 1784
350
4%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Xeon E3-1265L v4 after thermal limits kick in.

cinebench_cinebench_r23_multicore #1032 of 1788
5,910
4%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Xeon E3-1265L v4 maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #1031 of 1788
834
4%
Max: 20,979

About Intel Xeon E3-1265L v4

The Intel Xeon E3-1265L v4 is built on Intel's Broadwell-DT microarchitecture, representing the fourth generation of the Xeon E3 processor family. Manufactured using a 14 nm process, this chip delivers improved power efficiency and thermal performance over its predecessors. Designed for entry-level workstations and compact server environments, the E3-1265L supports ECC memory and integrated Intel vPro technology for enhanced reliability and remote management. It features four physical cores and eight threads, enabling efficient multitasking and solid performance in business-critical applications. The processor operates on Intel Socket 1150, making it compatible with select C226 and newer chipsets. As part of the Xeon lineup, the Intel Xeon E3-1265L v4 maintains a balance between professional features and energy-efficient operation.

Performance-wise, the Intel Xeon E3-1265L v4 demonstrates consistent results across widely used benchmarking tools. In Cinebench R23, it achieves a multicore score of 5,910 points and a single-core score of 834, reflecting its capability in both parallelized and single-threaded workloads. The R20 benchmarks show a multicore score of 2,482 and a single-core score of 350, aligning with expectations for a low-power workstation CPU of its era. With a base clock of 2.30 GHz and a turbo boost up to 3.30 GHz, it handles moderate computational loads with reliability. Its 6 MB of shared L3 cache contributes to smooth data access across threads and applications. The Intel Xeon E3-1265L v4 delivers predictable performance suitable for office productivity, light virtualization, and CAD applications.

Priced at $417 at launch, the Intel Xeon E3-1265L v4 occupies a mid-tier position within the Xeon E3 lineup, targeting budget-conscious professional environments. This price bracket makes it accessible for small businesses and technical workstations requiring ECC memory support without the cost of higher-end Xeon variants. Its 35W TDP further enhances its value by reducing long-term operational costs in always-on systems. The energy efficiency allows for quieter cooling solutions, ideal for office settings where noise levels matter. While newer processors offer higher performance, the E3-1265L remains relevant for systems prioritizing stability and longevity. The Intel Xeon E3-1265L v4 continues to be a viable option in legacy deployments and specialized embedded applications.

When building around this processor, ideal pairings include motherboards with the Intel C226 chipset that support ECC DDR3L memory for maximum system reliability. For business desktops, combining the E3-1265L with fast SSD storage and discrete graphics such as the NVIDIA Quadro series enhances productivity in design and engineering tasks. Its low thermal output allows compatibility with compact, low-profile cooling solutions, making it suitable for small form factor workstations. Systems leveraging Intel vPro can benefit from remote diagnostics and maintenance, especially in distributed office environments. The Intel Xeon E3-1265L v4 pairs well with professional software suites that benefit from multi-threading and error-correcting memory. This combination ensures a balanced, dependable platform for sustained business operations.

The AMD Equivalent of Xeon E3-1265L v4

Looking for a similar processor from AMD? The AMD Ryzen 5 1400 offers comparable performance and features in the AMD lineup.

AMD Ryzen 5 1400

AMD • 4 Cores

View Specs Compare

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