Core 2 Quad Q8400 vs Xeon E3-1285 v3
Aggregate performance score
Xeon E3-1285 v3 outperforms Core 2 Quad Q8400 by a whopping 237% based on our aggregate benchmark results.
Primary details
Comparing Xeon E3-1285 v3 and Core 2 Quad Q8400 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1338 | 2266 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Power efficiency | 4.95 | 1.30 |
| Architecture codename | Haswell-WS (2013−2014) | Yorkfield (2007−2009) |
| Release date | 2 June 2013 (11 years ago) | 19 April 2009 (15 years ago) |
Detailed specifications
Xeon E3-1285 v3 and Core 2 Quad Q8400 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 | 4 |
| Base clock speed | 3.6 GHz | 2.66 GHz |
| Boost clock speed | 4 GHz | 0.67 GHz |
| Bus rate | 5 GT/s | 1333 MHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 4 MB (shared) |
| L3 cache | 8192 KB (shared) | 0 KB |
| Chip lithography | 22 nm | 45 nm |
| Die size | 160 mm2 | 2x 82 mm2 |
| Maximum case temperature (TCase) | no data | 71 °C |
| Number of transistors | 1,400 million | 456 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.85V-1.3625V |
Compatibility
Information on Xeon E3-1285 v3 and Core 2 Quad Q8400 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 |
| Socket | FCLGA1150 | FCLGA775,LGA775 |
| Power consumption (TDP) | 84 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E3-1285 v3 and Core 2 Quad Q8400. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, 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 |
| SIPP | + | - |
| Demand Based Switching | no data | - |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| FSB parity | no data | - |
Security technologies
Xeon E3-1285 v3 and Core 2 Quad Q8400 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| Secure Key | + | no data |
| Identity Protection | + | - |
| OS Guard | + | no data |
| Anti-Theft | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E3-1285 v3 and Core 2 Quad Q8400 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 E3-1285 v3 and Core 2 Quad Q8400. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR4 | DDR1, DDR2, DDR3 |
| Maximum memory size | 32 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 25.6 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD P4600 | On certain motherboards (Chipset feature) |
| Quick Sync Video | + | - |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.3 GHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Xeon E3-1285 v3 and Core 2 Quad Q8400 integrated GPUs.
| Number of displays supported | 3 | no data |
Peripherals
Specifications and connection of peripherals supported by Xeon E3-1285 v3 and Core 2 Quad Q8400.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 16 | 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.
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 | 4.41 | 1.31 |
| Recency | 2 June 2013 | 19 April 2009 |
| Threads | 8 | 4 |
| Chip lithography | 22 nm | 45 nm |
| Power consumption (TDP) | 84 Watt | 95 Watt |
Xeon E3-1285 v3 has a 236.6% higher aggregate performance score, an age advantage of 4 years, 100% more threads, a 104.5% more advanced lithography process, and 13.1% lower power consumption.
The Xeon E3-1285 v3 is our recommended choice as it beats the Core 2 Quad Q8400 in performance tests.
Be aware that Xeon E3-1285 v3 is a server/workstation processor while Core 2 Quad Q8400 is a desktop one.
Should you still have questions on choice between Xeon E3-1285 v3 and Core 2 Quad Q8400, ask them in Comments section, and we shall answer.
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