Athlon 300U vs i5-9400T
Aggregate performance score
Core i5-9400T outperforms Athlon 300U by a whopping 115% based on our aggregate benchmark results.
Primary details
Comparing Core i5-9400T and Athlon 300U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1176 | 1754 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 8.64 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Intel Core i5 | AMD Athlon |
| Power efficiency | 14.20 | 15.38 |
| Architecture codename | Coffee Lake (2017−2019) | Raven Ridge 2 (2019) |
| Release date | 23 April 2019 (5 years ago) | 6 January 2019 (5 years ago) |
| Launch price (MSRP) | $182 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i5-9400T and Athlon 300U 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 | 6 (Hexa-Core) | 2 (Dual-core) |
| Threads | 6 | 4 |
| Base clock speed | 1.8 GHz | 2.4 GHz |
| Boost clock speed | 3.4 GHz | 3.3 GHz |
| Bus type | DMI 3.0 | PCIe 3.0 |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 18 | 24 |
| L1 cache | 384 KB | 192 KB |
| L2 cache | 1.5 MB | 1 MB |
| L3 cache | 9 MB (shared) | 4 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 149 mm2 | 209.78 mm2 |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 4940 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Core i5-9400T and Athlon 300U 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 (Uniprocessor) |
| Socket | FCLGA1151 | FP5 |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-9400T and Athlon 300U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | XFR, FMA3, SSE 4.2, AVX2, SMT |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
Security technologies
Core i5-9400T and Athlon 300U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| MPX | + | - |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-9400T and Athlon 300U are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-9400T and Athlon 300U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4 Dual-channel |
| Maximum memory size | 128 GB | 64 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 42.671 GB/s | 38.397 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel UHD Graphics 630 | AMD Radeon RX Vega 3 |
| Max video memory | 64 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.05 GHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i5-9400T and Athlon 300U integrated GPUs.
| Number of displays supported | 3 | no data |
Graphics image quality
Maximum display resolutions supported by Core i5-9400T and Athlon 300U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096 x 2304@24Hz | no data |
| Max resolution over eDP | 4096 x 2304@60Hz | no data |
| Max resolution over DisplayPort | 4096 x 2304@60Hz | no data |
Graphics API support
APIs supported by Core i5-9400T and Athlon 300U integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.5 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i5-9400T and Athlon 300U.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 16 | 12 |
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.
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.
Pros & cons summary
| Performance score | 5.43 | 2.52 |
| Integrated graphics card | 3.09 | 2.98 |
| Recency | 23 April 2019 | 6 January 2019 |
| Physical cores | 6 | 2 |
| Threads | 6 | 4 |
| Power consumption (TDP) | 35 Watt | 15 Watt |
i5-9400T has a 115.5% higher aggregate performance score, 3.7% faster integrated GPU, an age advantage of 3 months, and 200% more physical cores and 50% more threads.
Athlon 300U, on the other hand, has 133.3% lower power consumption.
The Core i5-9400T is our recommended choice as it beats the Athlon 300U in performance tests.
Note that Core i5-9400T is a desktop processor while Athlon 300U is a notebook one.
Should you still have questions on choice between Core i5-9400T and Athlon 300U, ask them in Comments section, and we shall answer.
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