Xeon E7450 vs Core 2 Quad Q9450
Aggregate performance score
Xeon E7450 outperforms Core 2 Quad Q9450 by a whopping 350% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2547 | 1351 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 0.56 | 2.66 |
| Designer | Intel | Intel |
| Architecture codename | Yorkfield (2007−2009) | no data |
| Release date | March 2008 (18 years ago) | 1 July 2008 (17 years ago) |
Detailed specifications
Basic parameters of Core 2 Quad Q9450 and Xeon E7450: 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) | no data |
| Threads | 4 | no data |
| Base clock speed | 2.66 GHz | 2.4 GHz |
| Boost clock speed | 2.67 GHz | no data |
| Bus rate | 1333 MHz | no data |
| L1 cache | 64K (per core) | no data |
| L2 cache | 12 MB (shared) | no data |
| L3 cache | 0 KB | 12 MB L3 Cache |
| Chip lithography | 45 nm | 45 nm |
| Die size | 2x 107 mm2 | no data |
| Maximum core temperature | no data | 68 °C |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 820 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.3625V | 0.9V-1.45V |
Compatibility
Information on Core 2 Quad Q9450 and Xeon E7450 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 | no data |
| Socket | LGA775 | PGA604 |
| Power consumption (TDP) | 95 Watt | 90 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q9450 and Xeon E7450. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| Idle States | + | - |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | + |
| FSB parity | + | + |
Security technologies
Core 2 Quad Q9450 and Xeon E7450 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad Q9450 and Xeon E7450 are enumerated here.
| VT-d | + | no data |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9450 and Xeon E7450. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | no data |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 1.26 | 5.67 |
| Power consumption (TDP) | 95 Watt | 90 Watt |
Xeon E7450 has a 350% higher aggregate performance score, and 6% lower power consumption.
The Intel Xeon E7450 is our recommended choice as it beats the Intel Core 2 Quad Q9450 in performance tests.
Note that Core 2 Quad Q9450 is a desktop processor while Xeon E7450 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.
