In depth comparison and review of Intel Core i7 3840QM (3rd Gen) and Intel Pentium G645. 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 Pentium G645 |
|---|
| Product Type | Processor (mobile) | Processor |
|---|
| PROCESSOR | Intel Core i7 3840QM (3rd Gen) | Intel Pentium G645 |
|---|
| Type | Intel Core i7 3840QM (3rd Gen) | Intel Pentium G645 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | PGA988 Socket | LGA1155 Socket |
| Manufacturing Process | 22 nm | 32 nm |
| Thermal Design Power | 45 W | 65 W |
| Thermal Specification | 105 °C | 69.1 °C |
| PCI Express Revision | 3.0 | 2.0 |
| PCI Express Configurations | 1x16, 2x8, 1x8+2x4 | - |
| PCI Express Lanes Qty | 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, integrated memory controller, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Thermal Monitoring Technologies, Idle States, Intel VT-x with Extended Page Tables (EPT) |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Dual-Core |
|---|---|---|
| Number of Threads | 8 threads | 2 threads |
| Clock Speed (Frequency) | 2.8 GHz | 2.9 GHz |
| Max Turbo Speed | 3.8 GHz | - |
| 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 Pentium G645 |
|---|
| Type | Intel HD Graphics 4000 | Intel HD Graphics with Dynamic Frequency |
|---|---|---|
| Base Frequency | 650 MHz | 850 MHz |
| Max Dynamic Frequency | 1.3 GHz | 1.1 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 |
| MISCELLANEOUS | Intel Core i7 3840QM (3rd Gen) | Intel Pentium G645 |
|---|
| Compliant Standards | Halogen-free | - |
|---|---|---|
| Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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