Intel Core i5-2405S Review
Introduction
The latest in the LGA1155 line of CPUs is the i5-2405S. Whilst many processors get bigger and better with more speed, ever tinier nm processes etc, this is squarely aimed at the energy efficient, low-power end of the market.
With a TDP of only 65W and a clock speed of 2.5GHz this is either a serious attempt to lower the energy consumption of businesses or, like the famed 65W E6800, a potential powerhouse.
Let’s find out which one it is shall we.
Technical Specifications
A quick glance through the specification table and we see that this is pretty much a standard Core i5 processor. We have four non-HT cores, a bit of Turbo performance boost, all very standard fare.
The big change with the i5-2405S compared to, for example, the Core i5-2500K we use in our Sandy Bridge bench rig is the much tighter multiplier restrictions that limit overclocking potential and the obvious reduction from a TDP of 95W to 65W.
| Status | Launched |
| Launch Date | Q2’11 |
| Processor Number | i5-2405S |
| # of Cores | 4 |
| # of Threads | 4 |
| Clock Speed | 2.5 GHz |
| Max Turbo Frequency | 3.3 GHz |
| Bus/Core Ratio | 25 |
| DMI | 5 GT/s |
| Instruction Set | 64-bit |
| Instruction Set Extensions | SSE4.1/4.2, AVX |
| Embedded Options Available | No |
| Lithography | 32 nm |
| Max TDP | 65 W |
| Recommended Channel Price | $205.00 |
| # of Memory Channels | 2 |
| Max Memory Bandwidth | 21 GB/s |
| ECC Memory Supported | No |
| Processor Graphics | Intel® HD Graphics 3000 |
| Graphics Base Frequency | 850 MHz |
| Graphics Max Dynamic Frequency | 1.1 GHz |
| Intel® Quick Sync Video | Yes |
| Intel® InTru™ 3D Technology, | Yes |
| Intel® Insider™ | Yes |
| Intel® Wireless Display | No |
| Intel® Flexible Display Interface (Intel® FDI) | Yes |
| Intel® Clear Video HD Technology | Yes |
| Dual Display Capable | Yes |
| Max CPU Configuration | 1 |
| TCASE | 69.1°C |
| Package Size | 37.5mm x 37.5mm |
| Sockets Supported | FCLGA1155, LGA1155 |
| Low Halogen Options Available | Yes |
| Intel® Turbo Boost Technology | 2.0 |
| Intel® vPro Technology | No |
| Intel® Hyper-Threading Technology | No |
| Intel® Virtualization Technology (VT-x) | Yes |
| Intel® Virtualization Technology for Directed I/O (VT-d) | No |
| Intel® Trusted Execution Technology | No |
| AES New Instructions | Yes |
| Intel® 64 | Yes |
| Idle States | Yes |
| Enhanced Intel SpeedStep® Technology | Yes |
| Thermal Monitoring Technologies | Yes |
| Intel® Fast Memory Access | Yes |
| Intel® Flex Memory Access | Yes |
| Execute Disable Bit | Yes |
