Performance per price, higher is better.
Core 2 Duo E6600 vs Core 2 Quad Q9550
Aggregated performance score
Core 2 Quad Q9550
4 cores / 4 threads
1.53
+155%
Core 2 Quad Q9550 outperforms Core 2 Duo E6600 by 155% based on our aggregated benchmark results.
General info
Comparing Core 2 Quad Q9550 and Core 2 Duo E6600 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2013 | 2657 |
| Place by popularity | not in top-100 | not in top-100 |
| Value for money | 2.80 | 3.46 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Quad (Desktop) | Core 2 Duo (Desktop) |
| Architecture codename | Yorkfield (2007−2009) | Conroe (2006−2007) |
| Release date | no data | no data |
| Current price | $54 | $30 |
Value for money
Core 2 Duo E6600 has 24% better value for money than Core 2 Quad Q9550.
Technical specs
Core 2 Quad Q9550 and Core 2 Duo E6600 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Boost clock speed | 2.83 GHz | 2.4 GHz |
| Bus support | 1333 MHz | 1066 MHz |
| L2 cache | 12288 KB | no data |
| Chip lithography | 45 nm | 65 nm |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core 2 Quad Q9550 and Core 2 Duo E6600 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 | LGA775 | no data |
| Power consumption (TDP) | 95 Watt | 65 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9550 and Core 2 Duo E6600. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1,DDR2,DDR3 | 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.
Core 2 Quad Q9550 outperforms Core 2 Duo E6600 by 155% 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 Core 2 Duo E6600 by 155% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Core 2 Quad Q9550 outperforms Core 2 Duo E6600 by 40% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Core 2 Quad Q9550 outperforms Core 2 Duo E6600 by 146% in GeekBench 5 Multi-Core.
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 2 Quad Q9550 outperforms Core 2 Duo E6600 by 26% 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 2 Quad Q9550 outperforms Core 2 Duo E6600 by 130% 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 2 Quad Q9550 outperforms Core 2 Duo E6600 by 106% 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 2 Quad Q9550 outperforms Core 2 Duo E6600 by 151% in Cinebench 11.5 64-bit multi-core.
Advantages and disadvantages
| Performance score | 1.53 | 0.60 |
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Chip lithography | 45 nm | 65 nm |
| Power consumption (TDP) | 95 Watt | 65 Watt |
The Core 2 Quad Q9550 is our recommended choice as it beats the Core 2 Duo E6600 in performance tests.
Should you still have questions on choice between Core 2 Quad Q9550 and Core 2 Duo E6600, ask them in Comments section, and we shall answer.
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