In depth comparison and review of Intel Core i7 3540M (3rd Gen) and Intel Core 2 Quad Q8400. 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 3540M (3rd Gen) | Intel Core 2 Quad Q8400 |
|---|
| Product Type | Processor (mobile) | Processor |
|---|
| PROCESSOR | Intel Core i7 3540M (3rd Gen) | Intel Core 2 Quad Q8400 |
|---|
| Type | Intel Core i7 3540M (3rd Gen) | Intel Core 2 Quad Q8400 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | PGA988 Socket | LGA775 Socket |
| Manufacturing Process | 22 nm | 45 nm |
| Thermal Design Power | 35 W | 95 W |
| Thermal Specification | - | 71.4 °C |
| PCI Express Revision | 3.0 | - |
| PCI Express Configurations | 1x16, 2x8, 1x8+2x4 | - |
| PCI Express Lanes Qty | 16 | - |
| Architecture Features | Enhanced SpeedStep technology, integrated memory controller, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 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 AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Idle States, Intel VT-x with Extended Page Tables (EPT) | Enhanced SpeedStep technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Enhanced Halt State (C1E), Intel Thermal Monitor 2 |
| PERFORMANCE |
|---|
| Number of Cores | Dual-Core | Quad-Core |
|---|---|---|
| Number of Threads | 4 threads | - |
| Clock Speed (Frequency) | 3 GHz | 2.66 GHz |
| Max Turbo Speed | 3.7 GHz | - |
| Bus Speed | - | 1333 MHz |
| 64-bit Computing | - | Yes |
| CACHE MEMORY |
|---|
| Cache | 4 MB | 4 MB |
|---|---|---|
| Cache Memory Details | L3 - 4 MB | L2 - 4 MB |
| Installed Size | 4 MB | 4 MB |
| INTEGRATED GRAPHICS (GPU) | Intel Core i7 3540M (3rd Gen) | Intel Core 2 Quad Q8400 |
|---|
| Type | Intel HD Graphics 4000 | - |
|---|---|---|
| Base Frequency | 650 MHz | - |
| Max Dynamic Frequency | 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 | - |
| EXPANSION & CONNECTIVITY | Intel Core i7 3540M (3rd Gen) | Intel Core 2 Quad Q8400 |
|---|
| Compatible Slots | - | 1 x processor - LGA775 Socket |
|---|
| MISCELLANEOUS | Intel Core i7 3540M (3rd Gen) | Intel Core 2 Quad Q8400 |
|---|
| Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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