Core i5-2405S

Details and Benchmarks for Intel Core i5-2405S

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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 Core i5-2405S based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,687 Rank: 1117
Rank Name Score Visual
1113 Xeon W3570 4,690
+0.1%
1114 Core i5-3570S 4,690
+0.1%
1115 Core i3-3240 4,689
+0%
1116 Core i7 940 4,688
+0%
1117 Core i5-2405S 4,687
1118 Ryzen 3 3200U 4,687
+0%
1119 Core i5-3330 4,686
+-0%
1120 Core i5-5350U 4,686
+-0%
1121 Celeron G5900 4,685
+-0%
1122 FX-4300 4,684
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i5-2405S based on multi-threaded benchmark results.

4,547 Rank: 1164
Rank Name Score Visual
1160 Core i7-6498DU 4,548
+0%
1161 Intel Core i7-740QM 4,548
+0%
1162 Core i7-4610M 4,548
+0%
1163 Core i5-7Y57 4,547
+0%
1164 Core i5-2405S 4,547
1165 Core i7-4558U 4,544
-0.1%
1166 Xeon X5470 4,543
-0.1%
1167 Pentium 967 4,540
-0.2%
1168 Xeon Bronze 3104 4,537
-0.2%
1169 Intel Core i3-7020U 4,537
-0.2%

View full ranking →

Singlecore Score

Single-core performance score for Core i5-2405S based on single-threaded benchmark results.

4,780 Rank: 1081
Rank Name Score Visual
1077 Core i3-6100E 4,786
+0.1%
1078 Celeron G3920 4,786
+0.1%
1079 Xeon E3-1505L v5 4,782
+0%
1080 Xeon E3-1240 V2 4,780
+0%
1081 Core i5-2405S 4,780
1082 Xeon E5-2643 v2 4,778
+-0%
1083 Core i7-2860QM 4,777
-0.1%
1084 Core i5-7300U 4,777
-0.1%
1085 Core i7-3687U 4,777
-0.1%
1086 Xeon W-2102 4,776
-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 Core i5-2405S based on integer math, floating point math, and prime number computation benchmarks.

4,584 Rank: 1010
Rank Name Score Visual
1006 Xeon E5530 4,586
+0%
1007 A10 PRO-7850B 4,586
+0%
1008 Athlon X4 860K 4,585
+0%
1009 Pentium Gold G5500 4,584
+0%
1010 Core i5-2405S 4,584
1011 Phenom II X6 1090T 4,584
+0%
1012 Athlon X4 840 4,584
+0%
1013 Core i7-2670QM 4,583
+-0%
1014 Core i3-7300 4,583
+-0%
1015 Core i5-2300 4,583
+-0%

View full ranking →

Data Processing

Aggregated score for Core i5-2405S based on data encryption, data compression, and string sorting benchmarks.

4,548 Rank: 1062
Rank Name Score Visual
1058 Core i3-4360 4,549
+0%
1059 Core i5-2500S 4,549
+0%
1060 A10 PRO-7850B 4,549
+0%
1061 Athlon X4 870K 4,549
+0%
1062 Core i5-2405S 4,548
1063 Phenom II X4 B60 4,548
+0%
1064 Core i7-6567U 4,547
+-0%
1065 Core i3-4170 4,547
+-0%
1066 Phenom II X4 B55 4,547
+-0%
1067 Athlon X4 860K 4,547
+-0%

View full ranking →

Physics & Compute

Aggregated score for Core i5-2405S based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,589 Rank: 988
Rank Name Score Visual
984 Core i5-2320 4,590
+0%
985 Xeon X5550 4,590
+0%
986 Core i3-7100T 4,589
+0%
987 Xeon X5570 4,589
+0%
988 Core i5-2405S 4,589
989 Core i7-2720QM 4,588
+-0%
990 Core i3-7101E 4,588
+-0%
991 Core i7-960 4,588
+-0%
992 Pentium Silver N6005 4,588
+-0%
993 Core i3-7100H 4,587
+-0%

View full ranking →

Core i5-2405S Details

As of March 2026, the Intel Core i5-2405S remains a relic of the early Sandy Bridge era, a processor launched in 2011 that has long since been superseded by modern architectures. While it once represented a solid mid-range offering for mainstream desktops, the i5-2405S now sits firmly in the past, offering performance that is dwarfed by today’s top-tier CPUs. Still, it holds historical significance as a representative of Intel’s transition to more efficient and powerful designs during the early 2010s.

Built on a 32 nm process and based on the Sandy Bridge microarchitecture, the Core i5-2405S features four cores and four threads, operating at a base frequency of 2.5 GHz with a turbo boost up to 3.3 GHz. It integrates Intel HD 3000 graphics, which supports up to two displays and operates at a base frequency of 850 MHz with a burst frequency of 1100 MHz. The processor is designed for the FCLGA1155 socket and carries a 65 W TDP, making it energy-efficient for its time. It supports dual-channel DDR3 memory up to 1333 MHz, with a maximum capacity of 32 GB and a peak memory bandwidth of 21 GB/s.

Despite its age, the i5-2405S supports a range of modern instruction sets, including AVX, AVX2, SSE4.1, SSE4.2, AES-NI, and Intel’s virtualization technologies like VT-x and EPT. These features were cutting-edge at launch and remain relevant for legacy software and virtualization use cases. However, its single-core performance is now notably outdated, ranking at #1080 out of 2060 in single-core benchmarks, with a score of 4780. Its multicore performance, at #1163 with a score of 4547, reflects its ability to handle multithreaded tasks, though it falls far short of contemporary processors.

In the broader context of modern CPUs, the i5-2405S is positioned well below the current top tier. The highest-performing CPUs today, such as the Ryzen Threadripper PRO 9995WX or Core Ultra 9 285K, achieve overall scores exceeding 8,000, while the i5-2405S’s score of 4687 places it near the lower end of mid-range systems from its generation. It competes with older mobile and desktop chips like the Core i5-3330 and Celeron G5900, both of which are more powerful due to architectural improvements and higher clock speeds.

Given its age and performance limitations, the Core i5-2405S is best suited for legacy systems, light office tasks, or as a low-cost upgrade for older machines where modern performance is not required. While it lacks the power for gaming, content creation, or intensive workloads, it remains a reliable option for basic computing needs. For users seeking modern efficiency and performance, upgrading to a current-generation processor is strongly recommended, but the i5-2405S still holds value in niche scenarios where compatibility and cost are paramount.
Frequently Compared

AMD Ryzen 7 PRO 2700X 7 views

AMD Ryzen Threadripper 2950X 4 views

Intel Xeon D-1520 3 views

AMD Ryzen Threadripper 1900X 2 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 4210 1 view

Intel Xeon Silver 4116T 1 view

Intel Core i5-2405S

Main Specifications

Designer: Intel
Name: Core i5-2405S
Model Number: i5-2405S
Cores: 4
Threads: 4
Base Frequency: 2500 MHz
Clock Multiplier: 25x (locked)
Core Name: Sandy Bridge
Socket: FCLGA1155, LGA1155
Package: FC-LGA10
Target Segment: Desktop
Max CPUs: 1
TDP: 65 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 5.722 MiB

Memory Specifications

Supported Memory Type: DDR3 1066/1333
Memory Channels: 2
Maximum Memory: 0 GB
Maximum Bandwidth: 21 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 16
PCIe Configuration: Up to 1x16, 2x8, 1x8+2x4

Integrated Graphics

GPU: HD Graphics 3000
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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