Ryzen 9 7950X3D vs Core i3-8121U
Aggregated performance score
Ryzen 9 7950X3D outperforms Core i3-8121U by 1324% based on our aggregated benchmark results.
Primary Details
Comparing Core i3-8121U and Ryzen 9 7950X3D processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1575 | 59 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-Effectiveness Evaluation | no data | 47.96 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i3 | AMD Ryzen 9 |
| Architecture codename | Coffee Lake-U (2018−2019) | Raphael (Zen4) |
| Release date | 5 May 2018 (6 years ago) | 4 January 2023 (1 year ago) |
| Launch price (MSRP) | no data | $699 |
| Current price | $828 | $938 (1.3x MSRP) |
Cost-Effectiveness Evaluation
Performance per price, higher is better.
Detailed Specifications
Core i3-8121U and Ryzen 9 7950X3D 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 | 2 (Dual-core) | 16 (Hexadeca-Core) |
| Threads | 4 | 32 |
| Base clock speed | 2.2 GHz | 4.2 GHz |
| Boost clock speed | 3.2 GHz | 5.7 GHz |
| Bus support | no data | 64K (per core) |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 256K (per core) | 1 MB (per core) |
| L3 cache | 4 MB (shared) | 128 MB (shared) |
| Chip lithography | 10 nm | 5 nm |
| Die size | 123 mm2 | 2x 71 mm (CCD) sq. mm + 121 (I/O) mm2 |
| Maximum core temperature | 105 °C | 89 °C |
| Maximum case temperature (TCase) | 72 °C | 47 °C |
| Number of transistors | no data | 13,140 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Core i3-8121U and Ryzen 9 7950X3D 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 | 1 |
| Socket | Intel BGA1440 | AM5 |
| Power consumption (TDP) | 15 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i3-8121U and Ryzen 9 7950X3D. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3, SHA, XFR2, Precision Boost 2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | - | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| QuickAssist | - | no data |
| Speed Shift | + | no data |
| My WiFi | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | no data |
| Flex Memory Access | + | no data |
| SIPP | - | no data |
| Smart Response | + | no data |
| Demand Based Switching | - | no data |
| Status | Launched | no data |
| HD Audio | + | no data |
| RST | + | no data |
Security technologies
Core i3-8121U and Ryzen 9 7950X3D technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| MPX | + | no data |
| SGX | - | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i3-8121U and Ryzen 9 7950X3D are enumerated here.
| AMD-V | no data | + |
| VT-d | + | no data |
| VT-x | + | no data |
| VT-i | - | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i3-8121U and Ryzen 9 7950X3D. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR4 | DDR5-5200 |
| Maximum memory size | 32 GB | 128 GB |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 37.5 GB/s | no data |
| ECC memory support | - | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Iris Pro Plus | AMD Radeon Graphics (Ryzen 7000) |
Peripherals
Specifications and connection of peripherals supported by Core i3-8121U and Ryzen 9 7950X3D.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 16 | 24 |
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 7950X3D outperforms Core i3-8121U by 1324% 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%
Ryzen 9 7950X3D outperforms Core i3-8121U by 1325% 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 7950X3D outperforms Core i3-8121U by 157% 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 7950X3D outperforms Core i3-8121U by 746% in GeekBench 5 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 7950X3D outperforms Core i3-8121U by 370% in 3DMark06 CPU.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Benchmark coverage: 15%
Ryzen 9 7950X3D outperforms Core i3-8121U by 1781% in Cinebench 15 64-bit multi-core.
Cinebench 15 64-bit single-core
Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.
Benchmark coverage: 15%
Ryzen 9 7950X3D outperforms Core i3-8121U by 145% in Cinebench 15 64-bit single-core.
Pros & Cons Summary
| Performance score | 2.84 | 40.43 |
| Recency | 5 May 2018 | 4 January 2023 |
| Physical cores | 2 | 16 |
| Threads | 4 | 32 |
| Chip lithography | 10 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 120 Watt |
The Ryzen 9 7950X3D is our recommended choice as it beats the Core i3-8121U in performance tests.
Be aware that Core i3-8121U is a notebook processor while Ryzen 9 7950X3D is a desktop one.
Should you still have questions on choice between Core i3-8121U and Ryzen 9 7950X3D, ask them in Comments section, and we shall answer.
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