Core 2 Quad Q8400s vs Xeon E5-2650 v4
Primary details
Comparing Xeon E5-2650 v4 and Core 2 Quad Q8400s processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 883 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.58 | no data |
| Market segment | Server | Desktop processor |
| Series | Intel Xeon E5 | no data |
| Power efficiency | 7.70 | no data |
| Architecture codename | Broadwell-EP (2016) | Yorkfield (2007−2009) |
| Release date | 20 June 2016 (8 years ago) | 19 April 2009 (15 years ago) |
| Launch price (MSRP) | $1,166 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E5-2650 v4 and Core 2 Quad Q8400s 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 | 12 (Dodeca-Core) | 4 (Quad-Core) |
| Threads | 24 | 4 |
| Base clock speed | 2.2 GHz | 2.66 GHz |
| Boost clock speed | 2.9 GHz | 0.67 GHz |
| Bus type | QPI | no data |
| Bus rate | 2 × 9.6 GT/s | 1333 MHz |
| Multiplier | 22 | no data |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 3 MB | 4 MB (shared) |
| L3 cache | 30 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | 306.18 mm2 | 2x 82 mm2 |
| Maximum core temperature | 80 °C | no data |
| Maximum case temperature (TCase) | no data | 76 °C |
| Number of transistors | 4700 Million | 456 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.85V-1.3625V |
Compatibility
Information on Xeon E5-2650 v4 and Core 2 Quad Q8400s 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 | FCLGA2011 | FCLGA775,LGA775 |
| Power consumption (TDP) | 105 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-2650 v4 and Core 2 Quad Q8400s. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2 | no data |
| AES-NI | + | - |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | + | - |
| TSX | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | - | no data |
| Demand Based Switching | + | - |
| PAE | 46 Bit | no data |
Security technologies
Xeon E5-2650 v4 and Core 2 Quad Q8400s technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| Secure Key | + | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-2650 v4 and Core 2 Quad Q8400s are enumerated here.
| VT-d | + | no data |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5-2650 v4 and Core 2 Quad Q8400s. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400 | DDR1, DDR2, DDR3 |
| Maximum memory size | 1.5 TB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 76.8 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-2650 v4 and Core 2 Quad Q8400s.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 40 | no data |
Pros & cons summary
| Recency | 20 June 2016 | 19 April 2009 |
| Physical cores | 12 | 4 |
| Threads | 24 | 4 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 105 Watt | 65 Watt |
Xeon E5-2650 v4 has an age advantage of 7 years, 200% more physical cores and 500% more threads, and a 221.4% more advanced lithography process.
Core 2 Quad Q8400s, on the other hand, has 61.5% lower power consumption.
We couldn't decide between Xeon E5-2650 v4 and Core 2 Quad Q8400s. We've got no test results to judge.
Be aware that Xeon E5-2650 v4 is a server/workstation processor while Core 2 Quad Q8400s is a desktop one.
Should you still have questions on choice between Xeon E5-2650 v4 and Core 2 Quad Q8400s, ask them in Comments section, and we shall answer.
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