AMD Radeon RX 5300M vs NVIDIA GeForce RTX 5090 Mobile Comparison

Head-to-Head Benchmarks

The only directly comparable benchmark result between the two mobile GPUs in the database is the Geekbench OpenCL compute test, and the outcome is decisively one-sided. The NVIDIA GeForce RTX 5090 Mobile scores 201,834 points, while the AMD Radeon RX 5300M scores 36,529 points. This represents a 452.5% advantage for the NVIDIA part, meaning the RTX 5090 Mobile delivers roughly 5.5 times the OpenCL compute throughput of the RX 5300M. There are no recorded head-to-head results for gaming workloads, DirectX tests, or Vulkan tests, so the OpenCL gap stands as the sole direct comparison point.

Looking at the broader database context, the RTX 5090 Mobile's average benchmark score is 45,152, placing it at the 84th percentile among all GPUs. Its nearest rivals include the AMD Radeon Pro 5500 XT at 45,384 (0.5% ahead), the Intel Arc A730M at 45,592 (1% ahead), and the NVIDIA RTX 5880 Ada Generation at 45,972 (1.8% ahead). The RTX 5090 Mobile is effectively trading blows with these desktop-class cards, sitting within a 1.8% band of performance parity. On the other side, the RX 5300M has an average benchmark score of 36,529, placing it at the 80th percentile. Its nearest rival is the NVIDIA GeForce GTX TITAN X at 36,530 (essentially identical, 0% delta), with the NVIDIA T1000 at 36,289 (0.7% behind) and the AMD Radeon PRO W6400 at 37,157 (1.7% ahead).

The data shows a massive generational and architectural chasm. The RTX 5090 Mobile's single OpenCL result alone exceeds the RX 5300M's entire benchmark profile by a factor of 5.5, and the percentile gap, while modest at 84 versus 80, understates the compute disparity because the RX 5300M has only one recorded benchmark. The RTX 5090 Mobile also shows a wider spread across its other tests: it scores 30,034 in Passmark G3D, 13,401 in Passmark GPU Compute, 198,405 in Geekbench Vulkan, and 5,871 in 3DMark Steel Nomad DX12. The RX 5300M has no corresponding entries for these tests, so cross-validation is limited to OpenCL.

Architecture Differences

The two GPUs come from fundamentally different design eras. The NVIDIA GeForce RTX 5090 Mobile uses the GB203 chip built on TSMC's 5 nm process, featuring the Blackwell 2.0 architecture. It integrates 45,600 million transistors on a 378 mm² die, yielding a transistor density of 120.6 million per mm². The AMD Radeon RX 5300M uses the Navi 14 chip on TSMC's 7 nm process, with the RDNA 1.0 architecture. It packs 6,400 million transistors on a 158 mm² die, for a density of 40.5 million per mm². The RTX 5090 Mobile has over 7 times the transistor count and more than double the die area, with nearly 3 times the transistor density.

The compute resources differ enormously. The RTX 5090 Mobile has 10,496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. The RX 5300M has 1,408 shading units, 88 TMUs, and 32 ROPs, with no dedicated RT cores or tensor cores listed. This translates to a pixel rate of 169.7 GPixel/s and texture rate of 496.9 GTexel/s for the NVIDIA part, versus 46.24 GPixel/s and 127.2 GTexel/s for the AMD part. The FP32 compute is 31.80 TFLOPS for the RTX 5090 Mobile (with FP16 at the same 31.80 TFLOPS, indicating 1:1 ratio), while the RX 5300M delivers 4.069 TFLOPS FP32 and 8.138 TFLOPS FP16 (2:1 ratio).

Memory subsystems are also generations apart. The RTX 5090 Mobile uses 24 GB of GDDR7 on a 256-bit bus, achieving 896.0 GB/s bandwidth. The RX 5300M uses 3 GB of GDDR6 on a 96-bit bus, with 168.0 GB/s bandwidth. The NVIDIA part has 8 times the memory capacity and over 5 times the bandwidth. Clock speeds are comparable at base (990 MHz versus 1000 MHz) but the RTX 5090 Mobile boosts higher at 1515 MHz versus 1445 MHz, and the RX 5300M has a separate game clock of 1181 MHz.

API support differs slightly: the RTX 5090 Mobile supports DirectX 12 Ultimate (12_2) while the RX 5300M supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The bus interface is PCIe 5.0 x16 on the NVIDIA side versus PCIe 4.0 x8 on the AMD side. Power draw is 95 W TDP for the RTX 5090 Mobile and 85 W for the RX 5300M. The RTX 5090 Mobile is listed as an IGP (integrated graphics processor) with no power connectors, while the RX 5300M also has no power connectors.

The Verdict

The data supports only one conclusion for compute performance: the NVIDIA GeForce RTX 5090 Mobile is in a completely different performance class than the AMD Radeon RX 5300M. The 452.5% OpenCL lead is not a marginal improvement but a categorical leap, driven by a newer architecture, a far larger chip, and a vastly superior memory subsystem. Anyone selecting between these two for OpenCL compute workloads should choose the RTX 5090 Mobile without hesitation, provided the system can accommodate its 95 W TDP and IGP form factor.

The RX 5300M, however, is not without its place. Its 80th percentile ranking, while lower than the RTX 5090 Mobile's 84th, still places it above most GPUs in the database. Its nearest rival is the NVIDIA GeForce GTX TITAN X with an identical average score, which suggests that for its era and class, the RX 5300M remains a competent mobile GPU. The data does not show any DirectX or Vulkan head-to-head results, so gaming performance cannot be directly compared. The RTX 5090 Mobile's individual scores (30,034 in Passmark G3D, 13,401 in GPU Compute) are strong, but without matching RX 5300M scores, those figures stand alone.

The production status of the two parts tells the story: the RTX 5090 Mobile is Active, released on 2025-03-26, while the RX 5300M is End-of-life, released on 2019-11-12. The RTX 5090 Mobile succeeds the GeForce 40 Mobile series, while the RX 5300M succeeds Polaris Mobile. There is no successor listed for either part. The RTX 5090 Mobile is the current-generation choice, while the RX 5300M belongs to a previous era.

Specification Differences

| Specification | NVIDIA GeForce RTX 5090 Mobile | AMD Radeon RX 5300M |

|---|---|---|

| Architecture | Blackwell 2.0 | RDNA 1.0 |

| Process node | 5 nm | 7 nm |

| Transistors | 45,600 million | 6,400 million |

| Die size | 378 mm² | 158 mm² |

| Transistor density | 120.6M / mm² | 40.5M / mm² |

| Base clock | 990 MHz | 1000 MHz |

| Boost clock | 1515 MHz | 1445 MHz |

| Game clock | Not specified | 1181 MHz |

| Memory size | 24 GB | 3 GB |

| Memory type | GDDR7 | GDDR6 |

| Memory bus | 256 bit | 96 bit |

| Memory bandwidth | 896.0 GB/s | 168.0 GB/s |

| Shading units | 10496 | 1408 |

| TMUs | 328 | 88 |

| ROPs | 112 | 32 |

| RT cores | 82 | None |

| Tensor cores | 328 | None |

| Pixel rate | 169.7 GPixel/s | 46.24 GPixel/s |

| Texture rate | 496.9 GTexel/s | 127.2 GTexel/s |

| FP32 | 31.80 TFLOPS | 4.069 TFLOPS |

| FP16 | 31.80 TFLOPS (1:1) | 8.138 TFLOPS (2:1) |

| TDP | 95 W | 85 W |

| Bus interface | PCIe 5.0 x16 | PCIe 4.0 x8 |

| DirectX | 12 Ultimate (12_2) | 12 (12_1) |

| Production status | Active | End-of-life |

| Release date | 2025-03-26 | 2019-11-12 |

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 5090 Mobile has an average benchmark score of 45,152, while the AMD Radeon RX 5300M has an average score of 36,529. The RTX 5090 Mobile is about 23.6% higher on average.

Q: How do the two GPUs compare in OpenCL performance?

A: The RTX 5090 Mobile scores 201,834 in Geekbench OpenCL, while the RX 5300M scores 36,529. The RTX 5090 Mobile leads by 452.5%, which is the only head-to-head benchmark recorded in the database.

Q: Does the RX 5300M support ray tracing?

A: No. The RX 5300M has no RT cores listed in its specifications, while the RTX 5090 Mobile has 82 RT cores.

Q: What is the memory capacity difference?

A: The RTX 5090 Mobile has 24 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s bandwidth. The RX 5300M has 3 GB of GDDR6 memory on a 96-bit bus with 168.0 GB/s bandwidth.

Q: Are both GPUs currently in production?

A: No. The RTX 5090 Mobile is listed as Active, while the RX 5300M is listed as End-of-life. The RTX 5090 Mobile was released on 2025-03-26, and the RX 5300M was released on 2019-11-12.

Q: Which GPU has more shading units?

A: The RTX 5090 Mobile has 10,496 shading units, compared to 1,408 for the RX 5300M. The NVIDIA part also has 328 TMUs and 112 ROPs, versus 88 TMUs and 32 ROPs for the AMD part.

Where Each One Wins

The RTX 5090 Mobile wins decisively in every category where data exists. Its OpenCL compute advantage is overwhelming at 452.5%, making it the clear choice for general-purpose GPU compute tasks such as rendering, scientific simulation, or machine learning workloads. Its 24 GB of GDDR7 memory with 896.0 GB/s bandwidth provides 8 times the capacity and over 5 times the bandwidth of the RX 5300M, which matters for large datasets and high-resolution textures. The presence of 82 RT cores and 328 tensor cores gives the RTX 5090 Mobile dedicated hardware for ray tracing and AI acceleration, features entirely absent from the RX 5300M. Its FP32 throughput of 31.80 TFLOPS is roughly 7.8 times higher than the RX 5300M's 4.069 TFLOPS, and its FP16 performance is also significantly higher.

The RX 5300M has one notable advantage: power efficiency per frame in a narrower sense. Its TDP is 85 W, only 10 W lower than the RTX 5090 Mobile's 95 W, so the power difference is marginal. However, for workloads that do not require extreme compute, the RX 5300M's lower transistor count and smaller die (158 mm² versus 378 mm²) may result in lower idle power draw, though the database does not quantify this. The RX 5300M also supports DirectX 12 (12_1), which is sufficient for most current games, even if it lacks the DirectX 12 Ultimate feature set. Its game clock of 1181 MHz suggests it is tuned for sustained gaming workloads, and its 80th percentile ranking means it outperforms roughly 80% of all GPUs in the database.

For users with existing RX 5300M systems, the data does not show a reason to upgrade based on gaming benchmarks alone, since no DirectX or Vulkan head-to-head results exist. However, for any compute-oriented task, the RTX 5090 Mobile is the only rational choice. The RTX 5090 Mobile also wins on connectivity with PCIe 5.0 x16 versus PCIe 4.0 x8, and on software features through DirectX 12 Ultimate support. The RX 5300M's end-of-life status means no future driver optimizations are likely, while the RTX 5090 Mobile's active status suggests ongoing support. In summary, the RTX 5090 Mobile wins on raw performance, memory, features, and future-proofing, while the RX 5300M wins only in the narrow sense of being a lower-power, older-generation alternative for basic gaming workloads.