Ryzen 9 5900X vs Core 2 Quad Q9550
Aggregate performance score
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by a whopping 1577% based on our aggregate benchmark results.
Primary details
Comparing Core 2 Quad Q9550 and Ryzen 9 5900X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2051 | 174 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.80 | 63.30 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Quad (Desktop) | AMD Ryzen 9 |
| Architecture codename | Yorkfield (2007−2009) | Vermeer (Zen3) (2020) |
| Release date | no data | 5 November 2020 (3 years ago) |
| Launch price (MSRP) | no data | $549 |
| Current price | $54 | $351 (0.6x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Ryzen 9 5900X has 2161% better value for money than Core 2 Quad Q9550.
Detailed specifications
Core 2 Quad Q9550 and Ryzen 9 5900X 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) | 12 (Dodeca-Core) |
| Threads | 4 | 24 |
| Base clock speed | no data | 3.7 GHz |
| Boost clock speed | 2.83 GHz | 4.8 GHz |
| Bus support | 1333 MHz | no data |
| L1 cache | no data | 64K (per core) |
| L2 cache | 12288 KB | 512K (per core) |
| L3 cache | no data | 64 MB |
| Chip lithography | 45 nm | 7 nm |
| Die size | no data | 2x 80.7 + 125 (I/O) mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Core 2 Quad Q9550 and Ryzen 9 5900X 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 | AM4 |
| Power consumption (TDP) | 95 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q9550 and Ryzen 9 5900X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2 |
| AES-NI | no data | + |
| AVX | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Quad Q9550 and Ryzen 9 5900X are enumerated here.
| AMD-V | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9550 and Ryzen 9 5900X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1,DDR2,DDR3 | DDR4-3200 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 51.196 GB/s |
| ECC memory support | no data | - |
Peripherals
Specifications and connection of peripherals supported by Core 2 Quad Q9550 and Ryzen 9 5900X.
| PCIe version | no data | 4.0 |
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.
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 1577% 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%
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 1574% 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%
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 493% 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%
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 1036% 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%
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 120% 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%
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 381% 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%
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 289% 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%
Ryzen 9 5900X outperforms Core 2 Quad Q9550 by 1132% in Cinebench 11.5 64-bit multi-core.
Pros & cons summary
| Performance score | 1.51 | 25.33 |
| Physical cores | 4 | 12 |
| Threads | 4 | 24 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 95 Watt | 105 Watt |
The Ryzen 9 5900X is our recommended choice as it beats the Core 2 Quad Q9550 in performance tests.
Should you still have questions on choice between Core 2 Quad Q9550 and Ryzen 9 5900X, ask them in Comments section, and we shall answer.
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