Atom Z3770 vs Xeon E5-2666 V3
Primary details
Comparing Xeon E5-2666 V3 and Atom Z3770 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 779 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Architecture codename | Haswell-EP (2014) | Bay Trail-T (2013−2014) |
| Release date | 13 November 2014 (9 years ago) | 27 September 2013 (10 years ago) |
| Launch price (MSRP) | no data | $37 |
| Current price | $59 | $118 (3.2x MSRP) |
Detailed specifications
Xeon E5-2666 V3 and Atom Z3770 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 | 10 (Deca-Core) | 4 (Quad-Core) |
| Threads | 20 | 4 |
| Base clock speed | 2.9 GHz | 1.46 GHz |
| Boost clock speed | 3.5 GHz | 2.39 GHz |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 256K (per core) | 512K (per core) |
| L3 cache | 25 MB (shared) | 0 KB |
| Chip lithography | 22 nm | 22 nm |
| Die size | 356 mm2 | no data |
| Maximum core temperature | no data | 90 °C |
| Number of transistors | 2,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Xeon E5-2666 V3 and Atom Z3770 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 | 2011-3 | UTFCBGA1380 |
| Power consumption (TDP) | 135 Watt | 8 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-2666 V3 and Atom Z3770. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | no data |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | + | no data |
| Status | no data | Discontinued |
Security technologies
Xeon E5-2666 V3 and Atom Z3770 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| Secure Key | no data | + |
| Identity Protection | no data | + |
| Anti-Theft | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-2666 V3 and Atom Z3770 are enumerated here.
| VT-d | + | no data |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5-2666 V3 and Atom Z3770. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR42133 MHz Quad-channel | DDR3 |
| Maximum memory size | no data | 4 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 17.1 GB/s |
| ECC memory support | no data | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for Intel Atom® Processor Z3700 Series |
| Quick Sync Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 667 MHz |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-2666 V3 and Atom Z3770.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 40 | 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%
Xeon E5-2666 V3 outperforms Atom Z3770 by 1844% in Passmark.
Pros & cons summary
| Recency | 13 November 2014 | 27 September 2013 |
| Physical cores | 10 | 4 |
| Threads | 20 | 4 |
| Power consumption (TDP) | 135 Watt | 8 Watt |
We couldn't decide between Xeon E5-2666 V3 and Atom Z3770. We've got no test results to judge.
Be aware that Xeon E5-2666 V3 is a server/workstation processor while Atom Z3770 is a notebook one.
Should you still have questions on choice between Xeon E5-2666 V3 and Atom Z3770, ask them in Comments section, and we shall answer.
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