Core i9-11900 vs Core i5-6600
Aggregate performance score
i9-11900 outperforms i5-6600 by a whopping 279% based on our aggregate benchmark results.
Primary details
Comparing Core i5-6600 and Core i9-11900 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1410 | 458 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.68 | 42.43 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Core i5 | no data |
| Architecture codename | Skylake (2015−2016) | Rocket Lake (2021) |
| Release date | 1 July 2015 (9 years ago) | 16 March 2021 (3 years ago) |
| Launch price (MSRP) | $224 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
i9-11900 has 2426% better value for money than i5-6600.
Detailed specifications
Core i5-6600 and Core i9-11900 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) | 8 (Octa-Core) |
| Threads | 4 | 16 |
| Base clock speed | 3.3 GHz | 2.5 GHz |
| Boost clock speed | 3.9 GHz | 5.2 GHz |
| Bus support | 4 × 8 GT/s | no data |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 256 KB (per core) | 256K (per core) |
| L3 cache | 6 MB (shared) | 16 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 177 mm2 | no data |
| Maximum case temperature (TCase) | 66 °C | 72 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i5-6600 and Core i9-11900 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 (Uniprocessor) | 1 |
| Socket | 1151 | 1200 |
| Power consumption (TDP) | 35 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-6600 and Core i9-11900. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | + | + |
| SIPP | + | no data |
Security technologies
Core i5-6600 and Core i9-11900 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-6600 and Core i9-11900 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-6600 and Core i9-11900. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4-3200 |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 34.134 GB/s | 50 GB/s |
| ECC memory support | - | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | UHD Graphics 530 | Intel UHD Graphics 750 |
Peripherals
Specifications and connection of peripherals supported by Core i5-6600 and Core i9-11900.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 16 | 20 |
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 i9-11900 outperforms Core i5-6600 by 279% 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: 65%
Core i9-11900 outperforms Core i5-6600 by 280% 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: 40%
Core i9-11900 outperforms Core i5-6600 by 68% 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: 40%
Core i9-11900 outperforms Core i5-6600 by 154% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 3.91 | 14.83 |
| Recency | 1 July 2015 | 16 March 2021 |
| Physical cores | 4 | 8 |
| Threads | 4 | 16 |
| Power consumption (TDP) | 35 Watt | 65 Watt |
i5-6600 has 85.7% lower power consumption.
i9-11900, on the other hand, has a 279.3% higher aggregate performance score, an age advantage of 5 years, and 100% more physical cores and 300% more threads.
The Core i9-11900 is our recommended choice as it beats the Core i5-6600 in performance tests.
Should you still have questions on choice between Core i5-6600 and Core i9-11900, ask them in Comments section, and we shall answer.
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