Phenom II X4 840T vs Core 2 Quad Q9550
Aggregated performance score
Core 2 Quad Q9550 outperforms Phenom II X4 840T by 2% based on our aggregated benchmark results.
General info
Comparing Core 2 Quad Q9550 and Phenom II X4 840T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2021 | 2042 |
| Place by popularity | not in top-100 | not in top-100 |
| Value for money | 2.80 | 2.28 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Quad (Desktop) | no data |
| Architecture codename | Yorkfield (2007−2009) | Zosma (2010−2011) |
| Release date | no data | 1 September 2010 (13 years ago) |
| Launch price (MSRP) | no data | $80 |
| Current price | $54 | $44 (0.6x MSRP) |
Value for money
Performance per price, higher is better.
Core 2 Quad Q9550 has 23% better value for money than Phenom II X4 840T.
Technical specs
Core 2 Quad Q9550 and Phenom II X4 840T 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 | 4 | 4 |
| Base clock speed | no data | 2.9 GHz |
| Boost clock speed | 2.83 GHz | 3.2 GHz |
| Bus support | 1333 MHz | no data |
| L1 cache | no data | 128 KB (per core) |
| L2 cache | 12288 KB | 512 KB (per core) |
| L3 cache | no data | 6 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | no data | 346 mm2 |
| Number of transistors | no data | 904 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core 2 Quad Q9550 and Phenom II X4 840T 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 | no data | 1 |
| Socket | LGA775 | AM3 |
| Power consumption (TDP) | 95 Watt | 95 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad Q9550 and Phenom II X4 840T are enumerated here.
| AMD-V | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9550 and Phenom II X4 840T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1,DDR2,DDR3 | DDR3 |
Peripherals
Specifications and connection of peripherals supported by Core 2 Quad Q9550 and Phenom II X4 840T.
| PCIe version | no data | 2.0 |
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.
Core 2 Quad Q9550 outperforms Phenom II X4 840T by 2% based on our aggregated benchmark results.
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.
Benchmark coverage: 68%
Core 2 Quad Q9550 outperforms Phenom II X4 840T by 2% in Passmark.
Advantages and disadvantages
| Performance score | 1.51 | 1.48 |
We couldn't decide between Core 2 Quad Q9550 and Phenom II X4 840T. The differences in performance seem too small.
Should you still have questions on choice between Core 2 Quad Q9550 and Phenom II X4 840T, ask them in Comments section, and we shall answer.
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