i5-2520M vs i7-3970X Extreme Edition
Aggregate performance score
Core i7-3970X Extreme Edition outperforms Core i5-2520M by a whopping 313% based on our aggregate benchmark results.
Primary details
Comparing Core i7-3970X Extreme Edition and Core i5-2520M processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1111 | 2200 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | Intel Core i7EE | Intel Core i5 |
| Power efficiency | 3.67 | 3.80 |
| Architecture codename | Sandy Bridge (2011−2013) | Sandy Bridge (2011−2013) |
| Release date | 12 November 2012 (11 years ago) | 1 February 2011 (13 years ago) |
| Launch price (MSRP) | no data | $225 |
Detailed specifications
Core i7-3970X Extreme Edition and Core i5-2520M 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 | 6 (Hexa-Core) | 2 (Dual-core) |
| Threads | 12 | 4 |
| Base clock speed | no data | 2.5 GHz |
| Boost clock speed | 3.5 GHz | 3.2 GHz |
| Bus type | DMI 2.0 | DMI 2.0 |
| Bus rate | 5 GT/s | 4 × 5 GT/s |
| Multiplier | 35 | 25 |
| L1 cache | no data | 128 KB |
| L2 cache | 1,536 KB | 512 KB |
| L3 cache | 15 MB | 3 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | no data | 149 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | no data | 624 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core i7-3970X Extreme Edition and Core i5-2520M 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 | no data | PPGA988 |
| Power consumption (TDP) | 150 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-3970X Extreme Edition and Core i5-2520M. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| My WiFi | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | no data | - |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Core i7-3970X Extreme Edition and Core i5-2520M technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Identity Protection | - | + |
| Anti-Theft | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-3970X Extreme Edition and Core i5-2520M are enumerated here.
| AMD-V | - | + |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-3970X Extreme Edition and Core i5-2520M. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3 |
| Maximum memory size | 64 GB | 16 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21.335 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics 3000 |
| Quick Sync Video | - | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.3 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Core i7-3970X Extreme Edition and Core i5-2520M 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 i7-3970X Extreme Edition and Core i5-2520M.
| PCIe version | 2.00 | 2.0 |
| PCI Express lanes | 40 | 16 |
Pros & cons summary
| Performance score | 6.03 | 1.46 |
| Recency | 12 November 2012 | 1 February 2011 |
| Physical cores | 6 | 2 |
| Threads | 12 | 4 |
| Power consumption (TDP) | 150 Watt | 35 Watt |
i7-3970X Extreme Edition has a 313% higher aggregate performance score, an age advantage of 1 year, and 200% more physical cores and 200% more threads.
i5-2520M, on the other hand, has 328.6% lower power consumption.
The Core i7-3970X Extreme Edition is our recommended choice as it beats the Core i5-2520M in performance tests.
Note that Core i7-3970X Extreme Edition is a desktop processor while Core i5-2520M is a notebook one.
Should you still have questions on choice between Core i7-3970X Extreme Edition and Core i5-2520M, ask them in Comments section, and we shall answer.
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