i7-3612QE vs Xeon E5645
Aggregate performance score
Xeon E5645 outperforms Core i7-3612QE by a minimal 2% based on our aggregate benchmark results.
Primary details
Comparing Xeon E5645 and Core i7-3612QE processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1600 | 1614 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.28 | no data |
| Market segment | Server | Laptop |
| Power efficiency | 3.76 | 8.39 |
| Architecture codename | Westmere-EP (2010−2011) | Ivy Bridge (2012−2013) |
| Release date | 16 March 2010 (14 years ago) | 29 April 2012 (12 years ago) |
| Launch price (MSRP) | $294 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5645 and Core i7-3612QE 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) | 4 (Quad-Core) |
| Threads | 12 | 8 |
| Base clock speed | 2.4 GHz | 2.1 GHz |
| Boost clock speed | 2.67 GHz | 3.1 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 256 KB (per core) |
| L3 cache | 12 MB (shared) | 6144 KB (shared) |
| Chip lithography | 32 nm | 22 nm |
| Die size | 239 mm2 | 160 mm2 |
| Maximum core temperature | 76 °C | no data |
| Number of transistors | 1,170 million | 1,400 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon E5645 and Core i7-3612QE 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 | 2 | 1 |
| Socket | FCLGA1366,LGA1366 | Intel BGA1023 |
| Power consumption (TDP) | 80 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5645 and Core i7-3612QE. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| AES-NI | + | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | + |
| Idle States | + | no data |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
Security technologies
Xeon E5645 and Core i7-3612QE technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5645 and Core i7-3612QE are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5645 and Core i7-3612QE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | unknown Dual-channel |
| Maximum memory size | 288 GB | no data |
| Max memory channels | 3 | no data |
| Maximum memory bandwidth | 32 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD 4000 |
Peripherals
Specifications and connection of peripherals supported by Xeon E5645 and Core i7-3612QE.
| PCIe version | 2.0 | 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.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
Pros & cons summary
| Performance score | 3.30 | 3.22 |
| Recency | 16 March 2010 | 29 April 2012 |
| Physical cores | 6 | 4 |
| Threads | 12 | 8 |
| Chip lithography | 32 nm | 22 nm |
| Power consumption (TDP) | 80 Watt | 35 Watt |
Xeon E5645 has a 2.5% higher aggregate performance score, and 50% more physical cores and 50% more threads.
i7-3612QE, on the other hand, has an age advantage of 2 years, a 45.5% more advanced lithography process, and 128.6% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Xeon E5645 and Core i7-3612QE.
Be aware that Xeon E5645 is a server/workstation processor while Core i7-3612QE is a notebook one.
Should you still have questions on choice between Xeon E5645 and Core i7-3612QE, ask them in Comments section, and we shall answer.
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