i7-975 Extreme Edition vs Atom Z620
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Atom | Intel Core i7EE |
| Designer | Intel | Intel |
| Manufacturer | Intel | no data |
| Architecture codename | Lincroft (2010−2011) | Nehalem (2008−2010) |
| Release date | 4 May 2010 (16 years ago) | 2 June 2009 (16 years ago) |
Detailed specifications
Basic parameters of Atom Z620 and Core i7-975 Extreme Edition: 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 | 1 (Single-Core) | 4 (Quad-Core) |
| Threads | 1 | 8 |
| Boost clock speed | 0.9 GHz | 3.33 GHz |
| Bus type | cDMI | QPI |
| Bus rate | 400 MT/s | 6.4 GT/s |
| Multiplier | 9 | 25 |
| L1 cache | 64K (per core) | no data |
| L2 cache | 512 KB (per core) | 1 MB |
| L3 cache | 0 KB | 8 MB |
| Chip lithography | 45 nm | 45 nm |
| Die size | 65.2526 mm2 | 263 mm2 |
| Number of transistors | 140 million | 731 Million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Atom Z620 and Core i7-975 Extreme Edition 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 (Uniprocessor) | 1 (Uniprocessor) |
| Socket | Intel BGA 518 | no data |
| Power consumption (TDP) | 1 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z620 and Core i7-975 Extreme Edition. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z620 and Core i7-975 Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2 | no data |
| Maximum memory size | 2 GB | 24 GB |
| Max memory channels | 1 | no data |
| Maximum memory bandwidth | 3.2 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | PowerVR SGX535 | no data |
Pros & cons summary
| Recency | 4 May 2010 | 2 June 2009 |
| Physical cores | 1 | 4 |
| Threads | 1 | 8 |
| Power consumption (TDP) | 1 Watt | 130 Watt |
Atom Z620 has an age advantage of 11 months, and 12900% lower power consumption.
i7-975 Extreme Edition, on the other hand, has 300% more physical cores and 700% more threads.
We couldn't decide between Intel Atom Z620 and Intel Core i7-975 Extreme Edition. We've got no test results to judge.
Be aware that Atom Z620 is a notebook processor while Core i7-975 Extreme Edition is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
