Xeon E5-1428L vs Core 2 Extreme QX9650
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1685 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | no data | 6.34 |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Yorkfield (2007−2009) | Sandy Bridge-EN (2012) |
| Release date | November 2007 (18 years ago) | 14 May 2012 (13 years ago) |
Detailed specifications
Core 2 Extreme QX9650 and Xeon E5-1428L 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) | 6 (Hexa-Core) |
| Threads | 4 | 12 |
| Base clock speed | 3 GHz | 1.8 GHz |
| Boost clock speed | 3 GHz | 1.8 GHz |
| Bus rate | 1333 MHz | 0 GT/s |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 12 MB (shared) | 256 KB (per core) |
| L3 cache | 0 KB | 15360 KB (shared) |
| Chip lithography | 45 nm | 32 nm |
| Die size | 2x 107 mm2 | 294 mm2 |
| Maximum case temperature (TCase) | 64 °C | no data |
| Number of transistors | 820 million | 1,270 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Extreme QX9650 and Xeon E5-1428L 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 | LGA775 | FCLGA1356 |
| Power consumption (TDP) | 130 Watt | 60 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme QX9650 and Xeon E5-1428L. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | - |
| Demand Based Switching | - | + |
| FSB parity | + | no data |
Security technologies
Core 2 Extreme QX9650 and Xeon E5-1428L technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme QX9650 and Xeon E5-1428L are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9650 and Xeon E5-1428L. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3 |
| Max memory channels | no data | 3 |
| Maximum memory bandwidth | no data | 32 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme QX9650 and Xeon E5-1428L.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Physical cores | 4 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 130 Watt | 60 Watt |
Xeon E5-1428L has 50% more physical cores and 200% more threads, a 40.6% more advanced lithography process, and 116.7% lower power consumption.
We couldn't decide between Intel Core 2 Extreme QX9650 and Intel Xeon E5-1428L. We've got no test results to judge.
Note that Core 2 Extreme QX9650 is a desktop processor while Xeon E5-1428L is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
