Intel Core i3-8121U | AMD Ryzen 9 5900H | |
CPU comparisonIn this CPU comparison, we compare the Intel Core i3-8121U and the AMD Ryzen 9 5900H and use benchmarks to check which processor is faster.
We compare the Intel Core i3-8121U 2 core processor released in Q2/2018 with the AMD Ryzen 9 5900H which has 8 CPU cores and was introduced in Q2/2021. |
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Intel Core i3 (205) | Family | AMD Ryzen 9 (40) |
Intel Core i 8000U (CL) (1) | CPU group | AMD Ryzen 5000H (11) |
8 | Generation | 4 |
Cannon Lake U | Architecture | Cezanne (Zen 3) |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i3-8121U is a 2 core processor with a clock frequency of 2.20 GHz (3.20 GHz). The processor can compute 4 threads at the same time. The AMD Ryzen 9 5900H clocks with 3.10 GHz (4.60 GHz), has 8 CPU cores and can calculate 16 threads in parallel. |
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Intel Core i3-8121U | Characteristic | AMD Ryzen 9 5900H |
2 | Cores | 8 |
4 | Threads | 16 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | Yes |
2.20 GHz | Frequency | 3.10 GHz |
3.20 GHz | Turbo Frequency (1 Core) | 4.60 GHz |
2.70 GHz | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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no iGPU | GPU | AMD Radeon RX Vega 8 (Renoir) |
GPU frequency | 0.40 GHz | |
-- | GPU (Turbo) | 1.75 GHz |
-- | GPU Generation | 9 |
Technology | 7 nm | |
Max. displays | 3 | |
-- | Compute units | 8 |
-- | Shader | 512 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | 8 GB |
-- | DirectX Version | 12 |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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no iGPU | GPU | AMD Radeon RX Vega 8 (Renoir) |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
No | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode / Encode |
No | Codec VP8 | Decode / Encode |
No | Codec AV1 | No |
No | Codec AVC | Decode / Encode |
No | Codec VC-1 | Decode |
No | Codec JPEG | Decode / Encode |
Memory & PCIeUp to 32 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i3-8121U, while the AMD Ryzen 9 5900H supports a maximum of 64 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled. |
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Intel Core i3-8121U | Characteristic | AMD Ryzen 9 5900H |
LPDDR4-2400, DDR4-2400 | Memory | LPDDR4-4266, DDR4-3200 |
32 GB | Max. Memory | 64 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
38.4 GB/s | Max. Bandwidth | 51.2 GB/s |
No | ECC | Yes |
-- | L2 Cache | 4.00 MB |
4.00 MB | L3 Cache | 16.00 MB |
3.0 | PCIe version | 3.0 |
16 | PCIe lanes | 12 |
15.8 GB/s | PCIe Bandwidth | 11.8 GB/s |
Thermal ManagementThe Intel Core i3-8121U has a TDP of 15 W. The TDP of the AMD Ryzen 9 5900H is 45 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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Intel Core i3-8121U | Characteristic | AMD Ryzen 9 5900H |
15 W | TDP (PL1 / PBP) | 45 W |
-- | TDP (PL2) | -- |
-- | TDP up | 54 W |
-- | TDP down | -- |
105 °C | Tjunction max. | 95 °C |
Technical detailsThe Intel Core i3-8121U has 4.00 MB cache and is manufactured in 10 nm. The cache of AMD Ryzen 9 5900H is at 20.00 MB. The processor is manufactured in 7 nm. |
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Intel Core i3-8121U | Characteristic | AMD Ryzen 9 5900H |
10 nm | Technology | 7 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX2, AVX-512 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
BGA 1356 | Socket | AM4 (PGA 1331) |
VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q2/2018 | Release date | Q2/2021 |
-- | Release price | -- |
show more data | show more data | |
Intel Core i3-8121U
2C 4T @ 3.20 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 4.60 GHz |
Intel Core i3-8121U
2C 4T @ 2.70 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 3.10 GHz |
Intel Core i3-8121U
2C 4T @ 2.70 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 3.10 GHz |
Intel Core i3-8121U
2C 4T @ 3.20 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 4.60 GHz |
Intel Core i3-8121U
2C 4T @ 2.70 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 3.10 GHz |
Intel Core i3-8121U
2C 4T @ 3.20 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 4.60 GHz |
Intel Core i3-8121U
2C 4T @ 2.70 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 3.10 GHz |
Intel Core i3-8121U
2C 4T @ 3.20 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 4.60 GHz |
Intel Core i3-8121U
2C 4T @ 2.70 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 3.10 GHz |
Intel Core i3-8121U
@ 0.00 GHz |
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AMD Ryzen 9 5900H
AMD Radeon RX Vega 8 (Renoir) @ 1.75 GHz |
Intel Core i3-8121U
2C 4T @ 3.20 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 4.60 GHz |
Intel Core i3-8121U
2C 4T @ 2.70 GHz |
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AMD Ryzen 9 5900H
8C 16T @ 3.10 GHz |
Devices using this processor |
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Intel Core i3-8121U | AMD Ryzen 9 5900H |
Unknown | Unknown |