i5-661 vs Xeon E5 1680 v4
Aggregate performance score
Xeon E5 1680 v4 outperforms Core i5-661 by a whopping 477% based on our aggregate benchmark results.
Primary details
Comparing Xeon E5-1680 v4 and Core i5-661 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 854 | 2107 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.95 | 0.08 |
| Market segment | Server | Desktop processor |
| Series | Intel Xeon E5 | no data |
| Power efficiency | 6.05 | 1.69 |
| Architecture codename | Broadwell-EP (2016) | Clarkdale (2010−2011) |
| Release date | 20 June 2016 (8 years ago) | 7 January 2010 (14 years ago) |
| Launch price (MSRP) | $1,723 | $252 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon E5 1680 v4 has 2338% better value for money than i5-661.
Detailed specifications
Xeon E5-1680 v4 and Core i5-661 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) | 2 (Dual-core) |
| Threads | 16 | 4 |
| Base clock speed | 3.4 GHz | 3.33 GHz |
| Boost clock speed | 4 GHz | 3.6 GHz |
| Bus type | DMI 2.0 | no data |
| Bus rate | 5 GT/s | 2.5 GT/s |
| Multiplier | 34 | no data |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 2 MB | 256 KB (per core) |
| L3 cache | 20 MB (shared) | 4 MB (shared) |
| Chip lithography | 14 nm | 32 nm |
| Die size | 246.24 mm2 | 81 mm2 |
| Maximum core temperature | no data | 70 °C |
| Maximum case temperature (TCase) | 70 °C | no data |
| Number of transistors | 3200 Million | 382 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon E5-1680 v4 and Core i5-661 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 |
| Socket | FCLGA2011 | FCLGA1156 |
| Power consumption (TDP) | 140 Watt | 87 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-1680 v4 and Core i5-661. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2 | Intel® SSE4.2 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | 1.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | - |
| Flex Memory Access | - | no data |
| Demand Based Switching | + | - |
| PAE | 46 Bit | 36 Bit |
| Turbo Boost Max 3.0 | + | no data |
| FDI | no data | + |
Security technologies
Xeon E5-1680 v4 and Core i5-661 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| Identity Protection | + | - |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-1680 v4 and Core i5-661 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5-1680 v4 and Core i5-661. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400 | DDR3 |
| Maximum memory size | 1.5 TB | 16.38 GB |
| Max memory channels | 4 | 2 |
| Maximum memory bandwidth | 76.8 GB/s | 21 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for Previous Generation Intel® Processors |
| Clear Video HD | no data | + |
Graphics interfaces
Available interfaces and connections of Xeon E5-1680 v4 and Core i5-661 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-1680 v4 and Core i5-661.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 40 | 16 |
Pros & cons summary
| Performance score | 9.29 | 1.61 |
| Recency | 20 June 2016 | 7 January 2010 |
| Physical cores | 8 | 2 |
| Threads | 16 | 4 |
| Chip lithography | 14 nm | 32 nm |
| Power consumption (TDP) | 140 Watt | 87 Watt |
Xeon E5 1680 v4 has a 477% higher aggregate performance score, an age advantage of 6 years, 300% more physical cores and 300% more threads, and a 128.6% more advanced lithography process.
i5-661, on the other hand, has 60.9% lower power consumption.
The Xeon E5 1680 v4 is our recommended choice as it beats the Core i5-661 in performance tests.
Be aware that Xeon E5 1680 v4 is a server/workstation processor while Core i5-661 is a desktop one.
Should you still have questions on choice between Xeon E5 1680 v4 and Core i5-661, ask them in Comments section, and we shall answer.
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