| Product | Core i3-5157U | Core i3-4000M |
| Brand | Intel | Intel |
| Street Price (Approx) | ~ $315 Search low Core i3-5157U price (Amazon) | ~ $69 Search low Core i3-4000M price (Amazon) |
| # CPU Cores | 2 | 2 |
| Frequency (GHz) | 2.5 GHz | 2.4 GHz |
| Cache (MB) | 3 | |
| TDP (Watts) | 28 W | 37 W |
| Product Segment | Mobile | Mobile |
| Status | Released | Released |
| Announced On | 2015-01-01 | 2013-10-01 |
| Technicals | Core i3-5157U | Core i3-4000M |
| Dimensions (2D) | 40x40 mm | 37.5x37.5 mm |
| Conflict Free? | 1 | 1 |
| # CPU Cores | 2 | 2 |
| Threads/Core | 4 | 4 |
| Frequency (GHz) | 2.5 GHz | 2.4 GHz |
| Cache (MB) | 3 | |
| Instructions Width (bits) | 64 | 64 |
| Instructions Extensions | SSE4.1/4.2, AVX 2.0 | SSE4.1/4.2, AVX 2.0 |
| Lithography Process (nm) | 14 nm | 22 nm |
| TDP (Watts) | 28 W | 37 W |
| TDP Down (W) | 23 | |
| TDP Frequency (W) | 0.6 | |
| Max RAM | 16 GB | 32 GB |
| RAM Types | DDR3L 1333/1600, LPDDR3 1600/1866 | DDR3L 1333/1600 |
| # Memory Channels | 2 | 2 |
| Memory Bandwidth (GB/Sec) | 25.6GB/s | 25.6GB/s |
| Max CPU Temp. | 105 | 100 |
| Max CPU / Package | 1 | 1 |
| PCI-E Version | 2 | 2 |
| PCI-E Configurations | 4x1, 2x4 | 1x16 or 2x8 or 1x8 2x4 |
| PCI-E Max Lanes # | 12 | 16 |
| Compatible Sockets | FCBGA1168 | FCPGA946 |
| Intel Turbo Boost Version |
| Intel V-Pro | No | No |
| Intel Hyper-Thread | Yes | Yes |
| Intel Virtualization (VTX) | Yes | Yes |
| Intel Directed I/O (VTD) | Yes | No |
| Intel Ext. Page Tables (EPT) | Yes | Yes |
| Intel TSX Sync. Extensions | No | No |
| Intel 64 | Yes | Yes |
| Idle States | Yes | |
| Thermal MonitoringTech. | Yes | Yes |
| Flex Memory | Yes | |
| Intel ID Protect | Yes | Yes |
| Intel SIPP | No | |
| Intel SMB Advantage | Yes | |
| Smart Response Technology | Yes | |
| Intel AES New Instructions | Yes | No |
| Intel Secure Key | Yes | Yes |
| Intel OS Guard | Yes | |
| Trusted Execution | No | No |
| Execution Disable | Yes | Yes |