Core i9-11900KB vs Mobile Sempron 2800+
Primary details
Comparing Mobile Sempron 2800+ and Core i9-11900KB processor market type (desktop or notebook), architecture, sales start time and price.
Place in performance ranking | not rated | 470 |
Place by popularity | not in top-100 | not in top-100 |
Cost-effectiveness evaluation | no data | 18.05 |
Market segment | Laptop | Desktop processor |
Series | Mobile Sempron | no data |
Architecture codename | Georgetown | Tiger Lake-H (2021) |
Release date | no data | 14 June 2021 (3 years ago) |
Launch price (MSRP) | no data | $539 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Mobile Sempron 2800+ and Core i9-11900KB 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 | 1 (Single-Core) | 8 (Octa-Core) |
Threads | 1 | 16 |
Base clock speed | no data | 3.3 GHz |
Boost clock speed | 1.6 GHz | 5.3 GHz |
Bus rate | 800 MHz | no data |
L1 cache | no data | 768 KB |
L2 cache | no data | 10 MB |
L3 cache | no data | 24 MB |
Chip lithography | no data | 10 nm |
Die size | no data | 190 mm2 |
Maximum core temperature | no data | 100 °C |
Maximum case temperature (TCase) | no data | 72 °C |
64 bit support | - | + |
Windows 11 compatibility | - | - |
Unlocked multiplier | No | Yes |
Compatibility
Information on Mobile Sempron 2800+ and Core i9-11900KB 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 | no data | BGA 1499 |
Power consumption (TDP) | 62 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron 2800+ and Core i9-11900KB. You'll probably need this information if you require some particular technology.
AES-NI | no data | + |
AVX | no data | + |
Enhanced SpeedStep (EIST) | no data | + |
TSX | no data | + |
Security technologies
Mobile Sempron 2800+ and Core i9-11900KB technologies aimed at improving security, for example, by protecting against hacks.
TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron 2800+ and Core i9-11900KB are enumerated here.
VT-d | no data | + |
VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Sempron 2800+ and Core i9-11900KB. Depending on the motherboard, higher memory frequencies may be supported.
Supported memory types | no data | DDR4 |
Maximum memory bandwidth | no data | 51.2 GB/s |
ECC memory support | no data | - |
Graphics specifications
General parameters of integrated GPUs, if any.
Integrated graphics card | no data | Intel UHD Graphics Xe 32EUs (Tiger Lake-H) |
Peripherals
Specifications and connection of peripherals supported by Mobile Sempron 2800+ and Core i9-11900KB.
PCIe version | no data | 4.0 |
PCI Express lanes | no data | 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.
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.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
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.
Pros & cons summary
Physical cores | 1 | 8 |
Threads | 1 | 16 |
Power consumption (TDP) | 62 Watt | 65 Watt |
Mobile Sempron 2800+ has 4.8% lower power consumption.
i9-11900KB, on the other hand, has 700% more physical cores and 1500% more threads.
We couldn't decide between Mobile Sempron 2800+ and Core i9-11900KB. We've got no test results to judge.
Be aware that Mobile Sempron 2800+ is a notebook processor while Core i9-11900KB is a desktop one.
Should you still have questions on choice between Mobile Sempron 2800+ and Core i9-11900KB, ask them in Comments section, and we shall answer.
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