i7-2655QM vs Atom Z515
Primary details
Comparing Atom Z515 and Core i7-2655QM 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 | Laptop |
Series | Intel Atom | Intel Core i7 |
Architecture codename | Silverthorne (2008−2010) | Sandy Bridge (2011−2013) |
Release date | 8 April 2009 (15 years ago) | 4 September 2011 (13 years ago) |
Detailed specifications
Atom Z515 and Core i7-2655QM 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 | 1 (Single-Core) | 4 (Quad-Core) |
Threads | 2 | 8 |
Base clock speed | 1.2 GHz | no data |
Boost clock speed | 1.2 GHz | 2.1 GHz |
Bus type | FSB | DMI 2.0 |
Bus rate | 400 MT/s | 4 × 5 GT/s |
Multiplier | 12 | 21 |
L1 cache | 56 KB (per core) | 256 KB |
L2 cache | 512 KB (per core) | 1 MB |
L3 cache | 0 KB | 6 MB |
Chip lithography | 45 nm | 32 nm |
Die size | 24.18 mm2 | 216 mm2 |
Maximum core temperature | 90 °C | no data |
Number of transistors | 47 million | 1160 Million |
64 bit support | - | + |
Windows 11 compatibility | - | - |
Compatibility
Information on Atom Z515 and Core i7-2655QM 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 | PBGA441 | no data |
Power consumption (TDP) | 1.4 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z515 and Core i7-2655QM. You'll probably need this information if you require some particular technology.
Instruction set extensions | Intel® SSE2, Intel® SSE3, Intel® SSSE3 | no data |
AES-NI | - | + |
FMA | - | + |
AVX | - | + |
vPro | no data | + |
Enhanced SpeedStep (EIST) | + | + |
Turbo Boost Technology | - | no data |
Hyper-Threading Technology | + | no data |
Idle States | + | no data |
Thermal Monitoring | + | - |
Demand Based Switching | + | no data |
FSB parity | - | no data |
Security technologies
Atom Z515 and Core i7-2655QM technologies aimed at improving security, for example, by protecting against hacks.
TXT | - | + |
EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom Z515 and Core i7-2655QM are enumerated here.
VT-d | - | + |
VT-x | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z515 and Core i7-2655QM. Depending on the motherboard, higher memory frequencies may be supported.
Supported memory types | unknown | no data |
Maximum memory size | no data | 16 GB |
Maximum memory bandwidth | no data | 21.335 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
Integrated graphics card | On certain motherboards (Chipset feature) | Intel HD Graphics 3000 |
Pros & cons summary
Recency | 8 April 2009 | 4 September 2011 |
Physical cores | 1 | 4 |
Threads | 2 | 8 |
Chip lithography | 45 nm | 32 nm |
Power consumption (TDP) | 1 Watt | 45 Watt |
Atom Z515 has 4400% lower power consumption.
i7-2655QM, on the other hand, has an age advantage of 2 years, 300% more physical cores and 300% more threads, and a 40.6% more advanced lithography process.
We couldn't decide between Atom Z515 and Core i7-2655QM. We've got no test results to judge.
Should you still have questions on choice between Atom Z515 and Core i7-2655QM, ask them in Comments section, and we shall answer.
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