Atom D510 vs Core i7-820QM
Primary details
Comparing Core i7-820QM and Atom D510 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2288 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i7 | no data |
| Architecture codename | Clarksfield (2009−2010) | Pineview (2009−2011) |
| Release date | 23 September 2009 (14 years ago) | December 2009 (14 years ago) |
| Launch price (MSRP) | $546 | $97 |
| Current price | $529 (1x MSRP) | $209 (2.2x MSRP) |
Detailed specifications
Core i7-820QM and Atom D510 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) | 2 (Dual-core) |
| Threads | 8 | 4 |
| Base clock speed | 1.73 GHz | 1.66 GHz |
| Boost clock speed | 3.06 GHz | 1.67 GHz |
| Bus support | 2500 MHz | no data |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 512 KB (per core) |
| L3 cache | 8 MB (shared) | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | 296 mm2 | 66 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | 774 million | 176 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-820QM and Atom D510 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 |
| Socket | FCPGA988,PGA988 | FCBGA559 |
| Power consumption (TDP) | 45 Watt | 13 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-820QM and Atom D510. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| AES-NI | - | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | - |
| Turbo Boost Technology | 1.0 | - |
| Hyper-Threading Technology | + | + |
| Idle States | + | - |
| Thermal Monitoring | + | - |
| Demand Based Switching | no data | - |
| PAE | 36 Bit | 32 Bit |
| Status | Discontinued | Discontinued |
Security technologies
Core i7-820QM and Atom D510 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-820QM and Atom D510 are enumerated here.
| VT-d | + | - |
| VT-x | + | - |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-820QM and Atom D510. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1066, DDR3-1333 | DDR2 |
| Maximum memory size | 8 GB | 4 GB |
| Max memory channels | 2 | 1 |
| Maximum memory bandwidth | 21 GB/s | 6.4 GB/s |
| ECC memory support | - | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | None | Intel GMA 3150 |
Peripherals
Specifications and connection of peripherals supported by Core i7-820QM and Atom D510.
| PCIe version | 2 | no data |
| PCI Express lanes | 16 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Core i7-820QM outperforms Atom D510 by 337% in Passmark.
Pros & cons summary
| Physical cores | 4 | 2 |
| Threads | 8 | 4 |
| Cost | $546 | $97 |
| Power consumption (TDP) | 45 Watt | 13 Watt |
We couldn't decide between Core i7-820QM and Atom D510. We've got no test results to judge.
Should you still have questions on choice between Core i7-820QM and Atom D510, ask them in Comments section, and we shall answer.
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