i7-820QM vs Xeon X3470
Aggregate performance score
Xeon X3470 outperforms Core i7-820QM by an impressive 84% based on our aggregate benchmark results.
Primary details
Comparing Xeon X3470 and Core i7-820QM processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1869 | 2366 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | no data | Intel Core i7 |
| Architecture codename | no data | Clarksfield (2009−2010) |
| Release date | 1 July 2009 (15 years ago) | 24 June 2009 (15 years ago) |
| Launch price (MSRP) | no data | $546 |
Detailed specifications
Xeon X3470 and Core i7-820QM 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) | 4 (Quad-Core) |
| Threads | 8 | 8 |
| Base clock speed | 2.93 GHz | 1.73 GHz |
| Boost clock speed | 3.6 GHz | 3.06 GHz |
| Bus type | no data | DMI 1.0 |
| Bus rate | no data | 2.5 GT/s |
| Multiplier | no data | 13 |
| L1 cache | no data | 256 KB |
| L2 cache | no data | 1 MB |
| L3 cache | 8 MB Intel® Smart Cache | 8 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | no data | 296 mm2 |
| Maximum core temperature | 73 °C | 100 °C |
| Number of transistors | no data | 774 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon X3470 and Core i7-820QM 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 (Uniprocessor) |
| Socket | FCLGA1156,LGA1156 | FCPGA988,PGA988 |
| Power consumption (TDP) | 95 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon X3470 and Core i7-820QM. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | Intel® SSE4.2 |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 1.0 | 1.0 |
| Hyper-Threading Technology | + | + |
| Idle States | + | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | + | no data |
| PAE | 36 Bit | 36 Bit |
| Status | Discontinued | Discontinued |
Security technologies
Xeon X3470 and Core i7-820QM technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon X3470 and Core i7-820QM are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon X3470 and Core i7-820QM. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-800, DDR3-1066, DDR3-1333 | DDR3-1066, DDR3-1333 |
| Maximum memory size | 32 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 21 GB/s | 21.335 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | None |
Peripherals
Specifications and connection of peripherals supported by Xeon X3470 and Core i7-820QM.
| PCIe version | 2.0 | 2 |
| PCI Express lanes | 16 | 16 |
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 | 2.14 | 1.16 |
| Power consumption (TDP) | 95 Watt | 45 Watt |
Xeon X3470 has a 84.5% higher aggregate performance score.
i7-820QM, on the other hand, has 111.1% lower power consumption.
The Xeon X3470 is our recommended choice as it beats the Core i7-820QM in performance tests.
Be aware that Xeon X3470 is a server/workstation processor while Core i7-820QM is a notebook one.
Should you still have questions on choice between Xeon X3470 and Core i7-820QM, ask them in Comments section, and we shall answer.
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