AMD Ryzen 9 7900 | AMD Athlon 300U | |
CPU comparisonAMD Ryzen 9 7900 or AMD Athlon 300U - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The AMD Ryzen 9 7900 has 12 cores with 24 threads and clocks with a maximum frequency of 5.40 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 7900 was released in Q1/2023. The AMD Athlon 300U has 2 cores with 4 threads and clocks with a maximum frequency of 3.30 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The AMD Athlon 300U was released in Q1/2019. |
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AMD Ryzen 9 (40) | Family | AMD Athlon (29) |
AMD Ryzen 7000 (14) | CPU group | AMD Athlon 300 (1) |
6 | Generation | 6 |
Raphael (Zen 4) | Architecture | Picasso (Zen+) |
Desktop / Server | Segment | Mobile |
AMD Ryzen 9 5900 | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 7900 has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the AMD Ryzen 9 7900 is 3.70 GHz (5.40 GHz) while the AMD Athlon 300U has 2 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Athlon 300U is at 2.40 GHz (3.30 GHz). |
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AMD Ryzen 9 7900 | Characteristic | AMD Athlon 300U |
12 | Cores | 2 |
24 | Threads | 4 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
3.70 GHz | Frequency | 2.40 GHz |
5.40 GHz | Turbo Frequency (1 Core) | 3.30 GHz |
4.70 GHz | Turbo Frequency (All Cores) | 2.40 GHz |
Internal GraphicsThe AMD Ryzen 9 7900 or AMD Athlon 300U has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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AMD Radeon Graphics (Raphael) | GPU | AMD Radeon RX Vega 3 (Raven Ridge) |
0.40 GHz | GPU frequency | 1.00 GHz |
2.20 GHz | GPU (Turbo) | -- |
9 | GPU Generation | 8 |
5 nm | Technology | 14 nm |
3 | Max. displays | 3 |
2 | Compute units | 3 |
128 | Shader | 192 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
8 GB | Max. GPU Memory | 2 GB |
12 | 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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AMD Radeon Graphics (Raphael) | GPU | AMD Radeon RX Vega 3 (Raven Ridge) |
Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode / Encode | Codec h264 | Decode / Encode |
Decode / Encode | Codec VP9 | Decode / Encode |
Decode / Encode | Codec VP8 | Decode / Encode |
Decode | Codec AV1 | No |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 9 7900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 83.2 GB/s. The AMD Athlon 300U supports up to 32 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s. |
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AMD Ryzen 9 7900 | Characteristic | AMD Athlon 300U |
DDR5-5200 | Memory | DDR4-2400 |
128 GB | Max. Memory | 32 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
83.2 GB/s | Max. Bandwidth | 38.4 GB/s |
Yes | ECC | Yes |
12.00 MB | L2 Cache | -- |
64.00 MB | L3 Cache | 4.00 MB |
5.0 | PCIe version | 3.0 |
24 | PCIe lanes | 12 |
94.5 GB/s | PCIe Bandwidth | 11.8 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 9 7900 is 65 W, while the AMD Athlon 300U has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 9 7900 | Characteristic | AMD Athlon 300U |
65 W | TDP (PL1 / PBP) | 15 W |
88 W | TDP (PL2) | -- |
170 W | TDP up | -- |
-- | TDP down | -- |
95 °C | Tjunction max. | 105 °C |
Technical detailsThe AMD Ryzen 9 7900 is manufactured in 5 nm and has 76.00 MB cache. The AMD Athlon 300U is manufactured in 12 nm and has a 4.00 MB cache. |
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AMD Ryzen 9 7900 | Characteristic | AMD Athlon 300U |
5 nm | Technology | 12 nm |
Chiplet | Chip design | Unknown |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
AM5 (LGA 1718) | Socket | FP5 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | |
Q1/2023 | Release date | Q1/2019 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Athlon 300U
2C 4T @ 3.30 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Athlon 300U
2C 4T @ 2.40 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Athlon 300U
2C 4T @ 3.30 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Athlon 300U
2C 4T @ 2.40 GHz |
AMD Ryzen 9 7900
AMD Radeon Graphics (Raphael) @ 2.20 GHz |
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AMD Athlon 300U
AMD Radeon RX Vega 3 (Raven Ridge) @ 1.00 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Athlon 300U
2C 4T @ 2.40 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Athlon 300U
2C 4T @ 3.30 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Athlon 300U
2C 4T @ 2.40 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Athlon 300U
2C 4T @ 3.30 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Athlon 300U
2C 4T @ 3.30 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Athlon 300U
2C 4T @ 3.30 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Athlon 300U
2C 4T @ 2.40 GHz |
AMD Ryzen 9 7900
12C 24T @ 5.40 GHz |
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AMD Athlon 300U
2C 4T @ 3.30 GHz |
AMD Ryzen 9 7900
12C 24T @ 4.70 GHz |
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AMD Athlon 300U
2C 4T @ 2.40 GHz |
AMD Ryzen 9 7900
28,905 CB R23 MC @ 90 W |
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AMD Athlon 300U
2.40 GHz |
Devices using this processor |
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AMD Ryzen 9 7900 | AMD Athlon 300U |
Unknown | Unknown |