Xeon E3-1240

Details and Benchmarks for Intel Xeon E3-1240

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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 E3-1240 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,093 Rank: 799
Rank Name Score Visual
795 Pentium Gold G5400 5,097
+0.1%
796 EPYC 7301 5,097
+0.1%
797 Xeon Silver 4208 5,096
+0.1%
798 Ryzen 3 1300X 5,094
+0%
799 Xeon E3-1240 5,093
800 Core i7-4930K 5,091
+-0%
801 Core i7-4980HQ 5,091
+-0%
802 Core i5-9400T 5,088
-0.1%
803 Core i5-4570 5,086
-0.1%
804 Ryzen 7 3750H 5,084
-0.2%

View full ranking →

Multicore Score

Multicore performance score for Xeon E3-1240 based on multi-threaded benchmark results.

4,891 Rank: 738
Rank Name Score Visual
734 Core i7-1065G7 4,893
+0%
735 Xeon Silver 4109T 4,892
+0%
736 Xeon X5690 4,892
+0%
737 Xeon E5-1660 v2 4,892
+0%
738 Xeon E3-1240 4,891
739 Core i5-1035G1 4,890
+-0%
740 Xeon E3-1535M V5 4,890
+-0%
741 Xeon E3-1545M v5 4,888
-0.1%
742 Core i7-970 4,888
-0.1%
743 Xeon E5-2650L v2 4,887
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Xeon E3-1240 based on single-threaded benchmark results.

5,227 Rank: 784
Rank Name Score Visual
780 Xeon E5-2695 v4 5,232
+0.1%
781 Core i7-6560U 5,232
+0.1%
782 Core i7-7Y75 5,230
+0.1%
783 Core i5-6440HQ 5,229
+0%
784 Xeon E3-1240 5,227
785 Ryzen 7 3750H 5,226
+-0%
786 Ryzen Embedded V1807B 5,226
+-0%
787 Xeon E3-1505M v6 5,226
+-0%
788 Xeon E3-1245 v5 5,226
+-0%
789 Xeon Platinum 8160 5,226
+-0%

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 E3-1240 based on integer math, floating point math, and prime number computation benchmarks.

4,628 Rank: 895
Rank Name Score Visual
891 Core i7-3610QM 4,629
+0%
892 Xeon E3-1265L v2 4,629
+0%
893 Xeon W3580 4,629
+0%
894 Core i5-3450 4,628
+0%
895 Xeon E3-1240 4,628
896 Xeon E3-1245 4,628
+0%
897 Ryzen 3 PRO 2200GE 4,627
+-0%
898 Core i3-8100T 4,627
+-0%
899 Core i7-4702MQ 4,627
+-0%
900 Core i5-7500T 4,626
+-0%

View full ranking →

Data Processing

Aggregated score for Xeon E3-1240 based on data encryption, data compression, and string sorting benchmarks.

4,656 Rank: 780
Rank Name Score Visual
776 Core i7-3920XM 4,657
+0%
777 Core i7-2600 4,657
+0%
778 Core i3-9300 4,656
+0%
779 Core i7-6700HQ 4,656
+0%
780 Xeon E3-1240 4,656
781 Core i7-3740QM 4,656
+0%
782 Core i7-4980HQ 4,656
+0%
783 Xeon E3-1245 4,656
+0%
784 Xeon E-2124G 4,655
+-0%
785 Core i5-7600K 4,655
+-0%

View full ranking →

Physics & Compute

Aggregated score for Xeon E3-1240 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,627 Rank: 893
Rank Name Score Visual
889 Ryzen 3 PRO 3200G 4,628
+0%
890 Ryzen 5 2400GE 4,628
+0%
891 Ryzen 7 PRO 3700U 4,627
+0%
892 Core i5-7260U 4,627
+0%
893 Xeon E3-1240 4,627
894 Core i5-3570 4,626
+-0%
895 Xeon X5660 4,626
+-0%
896 Core i7-7660U 4,625
+-0%
897 Core i5-7360U 4,625
+-0%
898 Core i5-7287U 4,625
+-0%

View full ranking →

Xeon E3-1240 Details

For users requiring reliable, server-grade performance in a compact workstation environment, the Intel Xeon E3-1240 stands as a capable, albeit dated, option. Launched in April 2011, this processor belongs to the Sandy Bridge architecture family and is designed for server and workstation applications. While it's now over a decade old, its robust feature set—particularly ECC memory support and virtualization technologies—makes it suitable for mission-critical systems where data integrity and stability are paramount.

Built on a 32 nm process, the Xeon E3-1240 features four cores with Hyper-Threading, effectively delivering eight threads for improved multitasking and parallel workloads. It operates at a base frequency of 3.3 GHz, with a turbo boost up to 3.7 GHz, and includes 8 MB of L3 cache to enhance data access speeds. The chip is packaged in LGA1155 and consumes 80 W of power, requiring adequate cooling due to its relatively high thermal envelope for a desktop-class processor.

Memory support is handled via dual-channel DDR3-1066/1333, with a maximum capacity of 32 GB and a bandwidth of 21 GB/s. The processor supports PCIe 2.0, offering up to 20 lanes of connectivity, which is sufficient for many storage and expansion needs. It also supports a range of advanced features, including Intel VT-x and VT-d for virtualization, AES-NI for encryption, and AVX and AVX2 for high-performance computing.

Despite lacking integrated graphics, the Xeon E3-1240's performance in benchmark testing remains notable. It achieves an overall score of 5093, placing it at #799 among 2060 processors, with a single-core score of 5227 (#784) and a multicore score of 4891 (#738). While it trails behind modern high-end CPUs, it competes closely with several mid-tier and older-generation processors, including the Core i7-1065G7 and Xeon Silver 4109T. Its strength lies in single-threaded performance, which is among the top tier for its era, though multicore performance shows more modest gains.

As of March 2026, the Xeon E3-1240 is best suited for legacy server environments, small business workstations, or retro computing projects where cost-effective, reliable processing is needed. While it no longer competes with contemporary high-performance CPUs, its combination of ECC support, virtualization features, and stable architecture continues to make it a practical choice in niche markets where modern upgrades are not feasible.
Frequently Compared

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Intel Xeon E3-1240

Main Specifications

Designer: Intel
Name: Xeon E3-1240
Model Number: E3-1240
Cores: 4
Threads: 8
Base Frequency: 3300 MHz
Clock Multiplier: 33x (locked)
Core Name: Sandy Bridge
Socket: LGA1155
Package: FC-LGA10
Target Segment: Server
Max CPUs: 1
TDP: 80 W

Cache Specifications

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

Memory Specifications

Supported Memory Type: DDR3 1066/1333
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 21 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 20
PCIe Configuration: up to 1x16, 2x8, 1x8 & 2x4

Integrated Graphics

GPU: HD Graphics 2500
GPU Designer: Intel
GPU Max Frequency: 1100 MHz

Physical Specifications

Process: 32 nm
Die Area: 216 mm²
Manufacturer: Intel
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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