Xeon E3-1275 v3

Details and Benchmarks for Intel Xeon E3-1275 v3

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 v3 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,001 Rank: 871
Rank Name Score Visual
867 Core i5-7400T 5,008
+0.1%
868 Ryzen 5 1400 5,008
+0.1%
869 Core i7 970 5,006
+0.1%
870 Xeon D-1541 5,002
+0%
871 Xeon E3-1275 v3 5,001
872 Core i5-4570R 4,999
+-0%
873 Core i5-7300HQ 4,997
-0.1%
874 Ryzen 7 2700U 4,997
-0.1%
875 Ryzen 5 PRO 2500U 4,996
-0.1%
876 Core i3-4350 4,996
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Xeon E3-1275 v3 based on multi-threaded benchmark results.

4,898 Rank: 728
Rank Name Score Visual
724 Ryzen 3 3200G 4,899
+0%
725 Core i7-4960HQ 4,899
+0%
726 Core i7-7920HQ 4,898
+0%
727 Core i5-10210U 4,898
+0%
728 Xeon E3-1275 v3 4,898
729 Core i7-5700HQ 4,898
+0%
730 Core i7-6785R 4,897
+-0%
731 Core i7-5950HQ 4,894
-0.1%
732 Core i7-8565U 4,894
-0.1%
733 Xeon E3-1230 v3 4,894
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Xeon E3-1275 v3 based on single-threaded benchmark results.

5,070 Rank: 898
Rank Name Score Visual
894 Ryzen 5 3500U 5,074
+0.1%
895 Core i7-4700HQ 5,074
+0.1%
896 Core i5-6260U 5,070
+0%
897 Celeron G4930 5,070
+0%
898 Xeon E3-1275 v3 5,070
899 Xeon E3-1275 V2 5,068
+-0%
900 Core i5-6300HQ 5,067
-0.1%
901 Xeon Silver 4208 5,065
-0.1%
902 Xeon Silver 4214 5,063
-0.1%
903 Xeon Silver 4116T 5,063
-0.1%

View full ranking →

Workload Scores

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

Number Crunching

Aggregated score for Xeon E3-1275 v3 based on integer math, floating point math, and prime number computation benchmarks.

4,696 Rank: 682
Rank Name Score Visual
678 Ryzen 3 2300X 4,698
+0%
679 Ryzen 5 7520U 4,698
+0%
680 Xeon E3-1230 V5 4,696
+0%
681 Xeon D-1528 4,696
+0%
682 Xeon E3-1275 v3 4,696
683 Xeon E3-1246 v3 4,696
+0%
684 Core i7-4860HQ 4,696
+0%
685 Xeon E5-2630L v2 4,696
+0%
686 Core i7-4770K 4,695
+-0%
687 Core i5-1035G4 4,694
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon E3-1275 v3 based on data encryption, data compression, and string sorting benchmarks.

4,697 Rank: 682
Rank Name Score Visual
678 Core i5-9400H 4,699
+0%
679 Xeon E3-1241 v3 4,698
+0%
680 Xeon E3-1270 v3 4,698
+0%
681 Xeon E3-1280 v2 4,698
+0%
682 Xeon E3-1275 v3 4,697
683 Xeon E5-1630 v4 4,696
+-0%
684 Core i7-4770K 4,696
+-0%
685 Xeon E3-1275 V2 4,696
+-0%
686 Core i5-8259U 4,695
+-0%
687 Core i7-8705G 4,695
+-0%

View full ranking →

Physics & Compute

Aggregated score for Xeon E3-1275 v3 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,725 Rank: 694
Rank Name Score Visual
690 Xeon E3-1505M v5 4,726
+0%
691 Core i7-4770K 4,726
+0%
692 Core i7-4790 4,726
+0%
693 Xeon E3-1241 v3 4,726
+0%
694 Xeon E3-1275 v3 4,725
695 Xeon E3-1280 v3 4,725
+0%
696 Xeon E3-1220 v5 4,724
+-0%
697 Core i7-6820EQ 4,724
+-0%
698 Core i5-6600 4,724
+-0%
699 Xeon E3-1246 v3 4,724
+-0%

View full ranking →

Xeon E3-1275 v3 Details

For users seeking a reliable, multi-threaded processor with ECC memory support and integrated graphics, the Intel Xeon E3-1275 v3 remains a compelling option despite its age. Released in June 2013, this server/workstation processor is built on Intel’s Haswell-WS architecture and operates at a base frequency of 3.4 GHz, with a turbo boost up to 3.8 GHz. It features four cores and four threads, thanks to Intel Hyper-Threading, and is manufactured on a 22 nm process node. The chip includes 8 MB of L3 cache, 0.061 MiB of L1 cache, and 0.244 MiB of L2 cache, enabling efficient data handling for demanding workloads. With a TDP of 77 W and a dual-channel DDR3-1333/1600 memory interface, it delivers solid performance while maintaining reasonable power efficiency for its time.

The Xeon E3-1275 v3 is designed for professional environments where data integrity and system reliability are crucial. Its support for ECC memory helps prevent data corruption in critical applications such as virtualization, CAD, and scientific computing. The processor also supports Intel’s virtualization technologies, including VT-x, VT-d, and EPT, which enhance the performance and security of virtual machines. Additionally, it features Intel’s integrated HD P4600 graphics, offering decent visual performance with a base frequency of 650 MHz and a burst frequency of 1150 MHz, supporting up to three displays. This makes it suitable for workstations that require both computational power and visual output without a discrete GPU.

In benchmark testing, the Xeon E3-1275 v3 scores 5001 overall, ranking #871 out of 2060 processors, with a single-core score of 5070 (#896) and a multicore score of 4898 (#726). These results place it behind modern consumer and server processors but still ahead of many older models, including the Core i7-6785R and Xeon E3-1230 v3. The multicore performance is particularly strong, outperforming several newer CPUs like the Core i7-8565U and Core i7-5950HQ. This indicates that while it may not lead in single-threaded tasks, its multi-threaded capabilities make it a viable choice for workloads that benefit from parallel processing.

As of March 2026, the Xeon E3-1275 v3 stands as a legacy processor that continues to serve niche markets. Its strengths lie in ECC memory support, virtualization features, and integrated graphics, making it ideal for small business servers, entry-level workstations, and retro builds. However, its age and lack of modern instruction sets like AVX-512 limit its relevance in high-performance computing. For users needing a stable, cost-effective solution for non-demanding tasks, the Xeon E3-1275 v3 remains a functional, if outdated, option.
Frequently Compared

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AMD Ryzen Threadripper 1900X 3 views

AMD Ryzen 3 PRO 2200GE 1 view

AMD Ryzen 9 PRO 3900 1 view

AMD Ryzen 5 PRO 3500U 1 view

Intel Xeon Silver 4214 1 view

Intel Xeon Silver 4116T 1 view

Intel Xeon Silver 4114 1 view

Intel Xeon Silver 4112 1 view

Intel Intel Celeron J3060 1 view

Intel Xeon E3-1275 v3

Main Specifications

Designer: Intel
Name: Xeon E3-1275 v3
Model Number: i5-3570K
Cores: 4
Threads: 4
Base Frequency: 3400 MHz
Clock Multiplier: 35x (locked)
Core Name: Haswell-WS
Socket: FCLGA1155
Package: FC-LGA12C
Target Segment: Workstation
Max CPUs: 1
TDP: 77 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 7.629 MiB

Memory Specifications

Supported Memory Type: DDR3 1333/1600
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 40
PCIe Configuration: up to 1x16, 2x8, 1x8 & 2x4

Integrated Graphics

GPU: HD Graphics 4000
GPU Designer: Intel
GPU Max Frequency: 1150 MHz

Physical Specifications

Process: 22 nm
Die Area: 160 mm²
Manufacturer: Intel
Word Size: 64-bit

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 EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT SSE4a SHA AMD-Vi AMD-V SenseMI TSX SMT Flex Memory FMA
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