Celeron 787 vs i7-975
Primary details
Comparing Core i7-975 and Celeron 787 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1830 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.10 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Core i7 (Desktop) | Intel Celeron |
| Power efficiency | 1.60 | no data |
| Architecture codename | Bloomfield (2008−2010) | Sandy Bridge (2011−2013) |
| Release date | 2 June 2009 (15 years ago) | 1 July 2011 (13 years ago) |
| Launch price (MSRP) | $476 | $107 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-975 and Celeron 787 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 1 (Single-Core) |
| Threads | 8 | 1 |
| Base clock speed | 3.33 GHz | 1.3 GHz |
| Boost clock speed | 3.6 GHz | 1.3 GHz |
| Bus type | no data | DMI 2.0 |
| Bus rate | 1333 MHz | 4 × 5 GT/s |
| Multiplier | no data | 13 |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 8 MB (shared) | 1.5 MB (shared) |
| Chip lithography | 45 nm | 32 nm |
| Die size | 263 mm2 | 131 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 68 °C | no data |
| Number of transistors | 731 million | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-975 and Celeron 787 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 (Uniprocessor) |
| Socket | FCLGA1366 | FCBGA1023 |
| Power consumption (TDP) | 130 Watt | 17 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-975 and Celeron 787. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | Intel® SSE4.1, Intel® SSE4.2 |
| FMA | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 1.0 | - |
| Hyper-Threading Technology | + | - |
| Idle States | + | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | - | - |
| PAE | 36 Bit | no data |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Core i7-975 and Celeron 787 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-975 and Celeron 787 are enumerated here.
| VT-d | no data | - |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-975 and Celeron 787. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 24 GB | 16 GB |
| Max memory channels | 3 | 2 |
| Maximum memory bandwidth | 25.6 GB/s | 21.335 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel® HD Graphics for 2nd Generation Intel® Processors |
| Graphics max frequency | no data | 950 MHz |
Graphics interfaces
Available interfaces and connections of Core i7-975 and Celeron 787 integrated GPUs.
| Number of displays supported | no data | 2 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| SDVO | no data | + |
| CRT | no data | + |
Peripherals
Specifications and connection of peripherals supported by Core i7-975 and Celeron 787.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Recency | 2 June 2009 | 1 July 2011 |
| Physical cores | 4 | 1 |
| Threads | 8 | 1 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 130 Watt | 17 Watt |
i7-975 has 300% more physical cores and 700% more threads.
Celeron 787, on the other hand, has an age advantage of 2 years, a 40.6% more advanced lithography process, and 664.7% lower power consumption.
We couldn't decide between Core i7-975 and Celeron 787. We've got no test results to judge.
Note that Core i7-975 is a desktop processor while Celeron 787 is a notebook one.
Should you still have questions on choice between Core i7-975 and Celeron 787, ask them in Comments section, and we shall answer.
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