Xeon E3-1275 v5

Details and Benchmarks for Intel Xeon E3-1275 v5

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Xeon E3-1275 v5 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,350 Rank: 583
Rank Name Score Visual
579 Xeon E3-1241 v3 5,365
+0.3%
580 Ryzen 5 PRO 1500 5,362
+0.2%
581 Core i3-9300 5,358
+0.1%
582 Xeon Gold 5120T 5,355
+0.1%
583 Xeon E3-1275 v5 5,350
584 Core i5-7500 5,349
+-0%
585 Xeon E5-2687W v4 5,346
-0.1%
586 Core i5-10400 5,345
-0.1%
587 Core i7-9850HE 5,342
-0.1%
588 Xeon E5-1630 v4 5,340
-0.2%

View full ranking →

Multicore Score

Multicore performance score for Xeon E3-1275 v5 based on multi-threaded benchmark results.

4,820 Rank: 817
Rank Name Score Visual
813 Core i5-6600T 4,827
+0.1%
814 Core i5-1035G4 4,826
+0.1%
815 Core i5-6402P 4,825
+0.1%
816 Core i3-10100 4,825
+0.1%
817 Xeon E3-1275 v5 4,820
818 Ryzen 5 7520U 4,820
+0%
819 Xeon W-2123 4,819
+-0%
820 Pentium Gold G4600 4,819
+-0%
821 Core i7-6700HQ 4,819
+-0%
822 Core i5-7442EQ 4,819
+-0%

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Singlecore Score

Single-core performance score for Xeon E3-1275 v5 based on single-threaded benchmark results.

5,704 Rank: 413
Rank Name Score Visual
409 Xeon E-2276M 5,707
+0.1%
410 Ryzen 3 4100 5,707
+0.1%
411 Ryzen 5 2600E 5,705
+0%
412 Core i7-5775R 5,705
+0%
413 Xeon E3-1275 v5 5,704
414 Core i7-8705G 5,703
+-0%
415 Intel Core i7-4960HQ 5,703
+-0%
416 Core i7-10850H 5,703
+-0%
417 Xeon Gold 6346 5,702
+-0%
418 Core i7-1065G7 5,701
-0.1%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Xeon E3-1275 v5 based on integer math, floating point math, and prime number computation benchmarks.

4,707 Rank: 647
Rank Name Score Visual
643 Xeon E3-1280 v5 4,709
+0%
644 Xeon E5-2623 v4 4,709
+0%
645 Xeon E3-1276 v3 4,708
+0%
646 Ryzen 5 3400G 4,707
+0%
647 Xeon E3-1275 v5 4,707
648 Xeon E3-1260L v5 4,707
+0%
649 Xeon E3-1240 v5 4,707
+0%
650 Xeon W3680 4,707
+0%
651 Core i7-4870HQ 4,707
+0%
652 Core i5-1038NG7 4,707
+0%

View full ranking →

Data Processing

Aggregated score for Xeon E3-1275 v5 based on data encryption, data compression, and string sorting benchmarks.

4,724 Rank: 636
Rank Name Score Visual
632 Core i5-1145G7 4,730
+0.1%
633 Ryzen 7 PRO 2700U 4,728
+0.1%
634 Core i7-8809G 4,727
+0.1%
635 Core i5-1145G7E 4,727
+0.1%
636 Xeon E3-1275 v5 4,724
637 Ryzen 5 PRO 3500U 4,723
+-0%
638 Core i5-10300H 4,723
+-0%
639 Ryzen 7 2700U 4,722
+-0%
640 Core i7-980X 4,722
+-0%
641 Xeon E3-1260L v5 4,721
-0.1%

View full ranking →

Physics & Compute

Aggregated score for Xeon E3-1275 v5 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,763 Rank: 634
Rank Name Score Visual
630 Core i7-3930K 4,766
+0.1%
631 Core i7-4850HQ 4,766
+0.1%
632 Core i5-5675C 4,765
+0%
633 Xeon E3-1245 v5 4,764
+0%
634 Xeon E3-1275 v5 4,763
635 Core i7-4860HQ 4,763
+0%
636 Xeon E3-1230 v6 4,761
+-0%
637 Xeon D-1539 4,761
+-0%
638 Core i7-4770HQ 4,761
+-0%
639 Core i5-7600K 4,760
-0.1%

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Xeon E3-1275 v5 Details

Built on Intel's Skylake microarchitecture at a 14 nm process, the Xeon E3-1275 v5 is a server and workstation processor that was launched in October 2015. Though now over eight years old, it remains notable for its robust feature set, including support for ECC memory, hardware virtualization, and advanced instruction sets. The chip is designed for embedded and small form-factor workstations, offering a balance of performance and power efficiency with an 80 W TDP. It operates at a base frequency of 3.6 GHz and can boost up to 4.0 GHz on a single core, leveraging Intel's Turbo Boost 2.0 technology to deliver strong performance under load.

The Xeon E3-1275 v5 features four cores with eight threads thanks to Intel Hyper-Threading, allowing it to handle multithreaded workloads efficiently. It includes 8 MB of L3 cache and 1 MB of L2 cache, with 0.125 MB of L1 cache per core. The processor uses the FCLGA-1151 socket and supports dual-channel DDR3L-1600 and DDR4-2133 memory, achieving a maximum memory bandwidth of 34.1 GB/s. It also supports up to 64 GB of RAM, which is suitable for many professional applications. The integrated HD Graphics P530 GPU runs at a base frequency of 400 MHz and can boost to 1.15 GHz, providing decent graphics performance for light multimedia and office tasks.

The Xeon E3-1275 v5 supports a wide range of technologies, including AVX, AVX2, AES-NI, and Intel VT-x/VT-d, making it suitable for virtualization, encryption, and scientific computing. It also includes features like Intel Secure Key, TXT, and vPro, enhancing security and manageability. Despite its age, the processor performs competitively in its segment, scoring 5,350 in the overall Passmark benchmark, placing it at #583 of 2060 processors. In single-core performance, it achieves a score of 5,704, ranking #413, which indicates strong per-core efficiency. However, its multicore performance at 4,820 places it at #817 of 2060, showing it lags behind modern multi-core processors.

When compared to contemporary CPUs, the Xeon E3-1275 v5 holds its own against some mid-range desktop processors like the Core i5-6402P and Core i3-10100 in multicore tasks, though it is outpaced by modern high-performance chips. Its single-core performance is particularly strong, placing it ahead of several newer Intel and AMD processors. This makes it a viable option for workloads that benefit from high clock speeds and strong single-threaded performance, such as legacy software, certain professional applications, or embedded systems.

As of March 2026, the Xeon E3-1275 v5 remains a capable processor for niche use cases where its combination of ECC support, virtualization, and integrated graphics is essential. While it is no longer competitive with the latest consumer or workstation CPUs, its reliability and feature set make it a solid choice for legacy systems, small-scale servers, or industrial applications where long-term support and stability are more important than raw performance.
Frequently Compared

AMD EPYC 7352 23 views

AMD Ryzen Threadripper 3970X 18 views

AMD EPYC 7452 18 views

AMD Ryzen 3 PRO 2200GE 17 views

AMD Ryzen 9 PRO 3900 17 views

AMD Ryzen 5 PRO 3500U 17 views

AMD EPYC 7302P 17 views

Intel Xeon W-3245 17 views

Intel Core i7-9850H 17 views

AMD Ryzen Embedded R1505G 15 views

Intel Xeon E3-1275 v5

Main Specifications

Designer: Intel
Name: Xeon E3-1275 v5
Family: Xeon
Series: E3-1200
Model Number: E3-1275
Cores: 4
Threads: 8
Base Frequency: 3600 MHz
Turbo Frequency (1 core): 4000 MHz
Turbo Frequency (2 cores): 3900 MHz
Turbo Frequency (3 cores): 3800 MHz
Turbo Frequency (4 cores): 3700 MHz
Clock Multiplier: 36x (locked)
Microarchitecture: Skylake
Core Name: Skylake
Core Family: 6
Core Model: 94
Socket: LGA-1151
Package: FCLGA-1151
Chipset: Sunrise
Target Segment: Embedded
Max CPUs: 1
TDP: 80 W
Release Price: $350.00

Cache Specifications

L1 Cache: 256 KiB
L1 Instruction Cache: 128 KiB (8-way set associative)
L1 Data Cache: 128 KiB (8-way set associative)
L2 Cache: 1 MiB (4-way set associative)
L3 Cache: 8 MiB

Memory Specifications

Supported Memory Type: DDR3L-1600 and DDR4-2133
Memory Channels: 2
Maximum Memory: 64 GB
Maximum Bandwidth: 31.79 GB/s
ECC Support: Yes

Integrated Graphics

GPU: HD Graphics P530
GPU Designer: Intel
GPU Max Frequency: 1150 MHz
Execution Units: 24

Physical Specifications

Process: 14 nm
Die Area: 122 mm²
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST TXT vPro VT-x VT-d EPT MPX SGX Secure Key SMEP TSX TBT 1.0
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