In depth comparison and review of Intel Core i7 3840QM (3rd Gen) and Intel Core i5 2540M (2nd Gen). Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.
| GENERAL | Intel Core i7 3840QM (3rd Gen) | Intel Core i5 2540M (2nd Gen) |
|---|
| Product Type | Processor (mobile) | Processor |
|---|
| PROCESSOR | Intel Core i7 3840QM (3rd Gen) | Intel Core i5 2540M (2nd Gen) |
|---|
| Type | Intel Core i7 3840QM (3rd Gen) | Intel Core i5 2540M (2nd Gen) |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | PGA988 Socket | BGA1023 Socket |
| Manufacturing Process | 22 nm | 32 nm |
| Thermal Design Power | 45 W | 35 W |
| Thermal Specification | 105 °C | 100 °C |
| PCI Express Revision | 3.0 | 2.0 |
| PCI Express Configurations | 1x16, 2x8, 1x8+2x4 | 1x16, 2x8, 1x8+2x4 |
| PCI Express Lanes Qty | 16 | 16 |
| Architecture Features | Enhanced SpeedStep technology, Hyper-Threading Technology, integrated memory controller, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, 4G WiMAX Wireless Technology, Intel My WiFi Technology, Intel Anti-Theft Technology, Intel Advanced Vector Extensions (AVX), Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Idle States, Intel VT-x with Extended Page Tables (EPT) | Enhanced SpeedStep technology, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, 4G WiMAX Wireless Technology, Intel My WiFi Technology, Intel Anti-Theft Technology, Intel Advanced Vector Extensions (AVX), Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Intel Smart Cache, Idle States, Intel VT-x with Extended Page Tables (EPT), Intel Identity Protection Technology |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Dual-Core |
|---|---|---|
| Number of Threads | 8 threads | 4 threads |
| Clock Speed (Frequency) | 2.8 GHz | 2.6 GHz |
| Max Turbo Speed | 3.8 GHz | 3.3 GHz |
| 64-bit Computing | - | Yes |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 3 MB |
|---|---|---|
| Cache Memory Details | L3 - 8 MB | L3 - 3 MB |
| Installed Size | 8 MB | 3 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Core i7 3840QM (3rd Gen) | Intel Core i5 2540M (2nd Gen) |
|---|
| Type | Intel HD Graphics 4000 | Intel HD Graphics 3000 |
|---|---|---|
| Base Frequency | 650 MHz | 650 MHz |
| Max Dynamic Frequency | 1.3 GHz | 1.3 GHz |
| Features | Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Intel Wireless Display (WiDi), Intel Insider, Triple Display Capable | Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Intel Wireless Display (WiDi) |
| EXPANSION & CONNECTIVITY | Intel Core i7 3840QM (3rd Gen) | Intel Core i5 2540M (2nd Gen) |
|---|
| Compatible Slots | - | 1 x processor |
|---|
| MISCELLANEOUS | Intel Core i7 3840QM (3rd Gen) | Intel Core i5 2540M (2nd Gen) |
|---|
| Included Accessories | - | Heat sink |
|---|---|---|
| Compliant Standards | Halogen-free | Halogen-free |
| Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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