Atom E660 vs Xeon Silver 4208
Primary details
Comparing Xeon Silver 4208 and Atom E660 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 920 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 25.13 | no data |
| Market segment | Server | Laptop |
| Series | Intel Xeon Silver | no data |
| Architecture codename | Cascade Lake (2019−2020) | Tunnel Creek (2010) |
| Release date | 2 April 2019 (5 years ago) | 14 September 2010 (13 years ago) |
| Launch price (MSRP) | $417 | $54 |
| Current price | $238 (0.6x MSRP) | $54 (1x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon Silver 4208 and Atom E660 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 | 8 (Octa-Core) | 1 (Single-Core) |
| Threads | 16 | 2 |
| Base clock speed | 2.1 GHz | no data |
| Boost clock speed | 3.2 GHz | 1.3 GHz |
| L1 cache | 512 KB | 64 KB (per core) |
| L2 cache | 8 MB | 512 KB (per core) |
| L3 cache | 11 MB | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | no data | 26 mm2 |
| Maximum core temperature | 78 °C | no data |
| Number of transistors | no data | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Xeon Silver 4208 and Atom E660 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 (Multiprocessor) | 1 |
| Socket | FCLGA3647 | Intel BGA 676 |
| Power consumption (TDP) | 85 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Silver 4208 and Atom E660. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | no data |
| AVX | + | no data |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | + |
| TSX | + | no data |
| Turbo Boost Max 3.0 | - | no data |
| Status | Launched | no data |
Security technologies
Xeon Silver 4208 and Atom E660 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Silver 4208 and Atom E660 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4208 and Atom E660. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR2 |
| Maximum memory size | 1 TB | no data |
| Max memory channels | 6 | no data |
| Maximum memory bandwidth | 115.212 GB/s | no data |
| ECC memory support | + | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel GMA 600 |
Peripherals
Specifications and connection of peripherals supported by Xeon Silver 4208 and Atom E660.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 48 | 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 Silver 4208 outperforms Atom E660 by 4072% in Passmark.
Pros & cons summary
| Recency | 2 April 2019 | 14 September 2010 |
| Physical cores | 8 | 1 |
| Threads | 16 | 2 |
| Cost | $417 | $54 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 85 Watt | 3 Watt |
We couldn't decide between Xeon Silver 4208 and Atom E660. We've got no test results to judge.
Be aware that Xeon Silver 4208 is a server/workstation processor while Atom E660 is a notebook one.
Should you still have questions on choice between Xeon Silver 4208 and Atom E660, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
