Core 2 Quad Q9550 vs Core i7-990X EE
Aggregate performance score
i7-990X EE outperforms Core 2 Quad Q9550 by a whopping 183% based on our aggregate benchmark results.
Primary details
Comparing Core i7-990X EE and Core 2 Quad Q9550 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1297 | 2051 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 2.80 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core i7 (Desktop) | Core 2 Quad (Desktop) |
| Architecture codename | Gulftown (2010−2011) | Yorkfield (2007−2009) |
| Release date | no data | no data |
| Current price | no data | $54 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-990X EE and Core 2 Quad Q9550 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 | 6 (Hexa-Core) | 4 (Quad-Core) |
| Threads | 12 | 4 |
| Boost clock speed | 3.73 GHz | 2.83 GHz |
| Bus support | 6400 MHz | 1333 MHz |
| L2 cache | no data | 12288 KB |
| Chip lithography | 32 nm | 45 nm |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-990X EE and Core 2 Quad Q9550 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.
| Socket | LGA-1366 | LGA775 |
| Power consumption (TDP) | 130 Watt | 95 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-990X EE and Core 2 Quad Q9550. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1,DDR2,DDR3 |
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 i7-990X EE outperforms Core 2 Quad Q9550 by 183% based on our aggregate 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 i7-990X EE outperforms Core 2 Quad Q9550 by 183% in Passmark.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Benchmark coverage: 20%
Core i7-990X EE outperforms Core 2 Quad Q9550 by 35% in Cinebench 10 32-bit single-core.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Benchmark coverage: 19%
Core i7-990X EE outperforms Core 2 Quad Q9550 by 105% in Cinebench 10 32-bit multi-core.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
Benchmark coverage: 19%
Core i7-990X EE outperforms Core 2 Quad Q9550 by 66% in 3DMark06 CPU.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Benchmark coverage: 17%
Core i7-990X EE outperforms Core 2 Quad Q9550 by 161% in Cinebench 11.5 64-bit multi-core.
Pros & cons summary
| Performance score | 4.28 | 1.51 |
| Physical cores | 6 | 4 |
| Threads | 12 | 4 |
| Chip lithography | 32 nm | 45 nm |
| Power consumption (TDP) | 130 Watt | 95 Watt |
The Core i7-990X EE is our recommended choice as it beats the Core 2 Quad Q9550 in performance tests.
Should you still have questions on choice between Core i7-990X EE and Core 2 Quad Q9550, ask them in Comments section, and we shall answer.
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