In depth comparison and review of Intel Pentium G645 and Intel Core i7 2820QM (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 Pentium G645 | Intel Core i7 2820QM (2nd Gen) |
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Product Type | Processor | Processor (mobile) |
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PROCESSOR | Intel Pentium G645 | Intel Core i7 2820QM (2nd Gen) |
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Type | Intel Pentium G645 | Intel Core i7 2820QM (2nd Gen) |
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ARCHITECTURE |
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Processor Qty | 1 | 1 |
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Packaging Type | - | 988-pin Micro FCPGA |
Compatible Processor Socket | LGA1155 Socket | - |
Manufacturing Process | 32 nm | 32 nm |
Thermal Design Power | 65 W | 45 W |
Thermal Specification | 69.1 °C | 100 °C |
PCI Express Revision | 2.0 | 2.0 |
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, 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) | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel vPro Technology |
PERFORMANCE |
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Number of Cores | Dual-Core | Quad-Core |
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Number of Threads | 2 threads | 8 threads |
Clock Speed (Frequency) | 2.9 GHz | 2.3 GHz |
Max Turbo Speed | - | 3.4 GHz |
64-bit Computing | - | Yes |
CACHE MEMORY |
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Cache | 3 MB | 8 MB |
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Cache Memory Details | L3 - 3 MB | L3 - 8 MB |
Installed Size | 3 MB | 8 MB |
INTEGRATED GRAPHICS (GPU) | Intel Pentium G645 | Intel Core i7 2820QM (2nd Gen) |
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Type | Intel HD Graphics with Dynamic Frequency | - |
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Base Frequency | 850 MHz | - |
Max Dynamic Frequency | 1.1 GHz | - |
Features | Dual Display Capable, Intel FDI | - |
EXPANSION & CONNECTIVITY | Intel Pentium G645 | Intel Core i7 2820QM (2nd Gen) |
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Compatible Slots | - | 1 x processor |
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MISCELLANEOUS | Intel Pentium G645 | Intel Core i7 2820QM (2nd Gen) |
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Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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