AMD Radeon RX 5300M vs NVIDIA GeForce RTX 4090 Mobile Comparison

FAQ

Q: How much faster is the NVIDIA GeForce RTX 4090 Mobile than the AMD Radeon RX 5300M in the only shared benchmark?

A: In the Geekbench OpenCL test, the RTX 4090 Mobile scores 180,831 versus 36,529 for the RX 5300M, a 395% advantage.

Q: What is the average benchmark score for each GPU?

A: The RTX 4090 Mobile has an average benchmark score of 43,667 across nine tests, while the RX 5300M has an average score of 36,529 from a single recorded test.

Q: How do these GPUs compare to their nearest rivals?

A: The RTX 4090 Mobile sits within 0.9% of the NVIDIA RTX A6000 (which scores 44,075) and is 0.8% ahead of the Quadro M6000. The RX 5300M is essentially tied with the GeForce GTX TITAN X (36,530, a 0% delta) and sits 1.7% behind the Radeon PRO W6400.

Q: Which GPU has a higher percentile ranking among all GPUs?

A: The RTX 4090 Mobile ranks in the 84th percentile, while the RX 5300M ranks in the 80th percentile.

Q: What are the architectural generations of these two GPUs?

A: The RTX 4090 Mobile uses NVIDIA's Ada Lovelace architecture on a 5 nm TSMC process with the AD103 chip. The RX 5300M uses AMD's RDNA 1.0 architecture on a 7 nm TSMC process with the Navi 14 chip.

Q: What is the production status of each GPU?

A: The RTX 4090 Mobile is listed as Active (released January 2023), while the RX 5300M is End-of-life (released November 2019).

Where Each One Wins

The benchmark data presents a one-sided picture. The RTX 4090 Mobile wins the only head-to-head test available, Geekbench OpenCL, with a 395% margin. The RX 5300M has no recorded wins in any shared benchmark, and the database only lists a single benchmark result for it: Geekbench OpenCL at 36,529.

That said, the RX 5300M's percentile placement at 80th overall shows it was not a weak part in its time. It trails the RTX 4090 Mobile by only 4 percentile points, despite the massive raw score gap. This suggests the field of mobile GPUs is wide, and the RX 5300M still outperforms many older desktop parts like the GTX TITAN X, which scores 36,530.

For users focused on modern, high-end workloads such as ray-traced gaming, content creation, or compute-heavy tasks, the RTX 4090 Mobile is clearly the dominant choice. The RX 5300M, with its smaller memory pool and lower compute throughput, would be better suited for lighter gaming or legacy applications, though the recorded data does not include any benchmarks that would confirm this directly.

Architecture Differences

The two GPUs come from different design philosophies and process nodes. The RTX 4090 Mobile uses TSMC's 5 nm process and packs 45,900 million transistors into a 379 mm² die, yielding a transistor density of 121.1 million per mm². The RX 5300M uses TSMC's 7 nm process with 6,400 million transistors on a 158 mm² die, for a density of 40.5 million per mm².

The RTX 4090 Mobile is built on Ada Lovelace, NVIDIA's architecture that includes dedicated ray tracing cores (76 of them) and tensor cores (304). The RX 5300M, based on RDNA 1.0, has no ray tracing cores and no tensor cores listed; those fields are null in the database. This is a fundamental feature gap: the NVIDIA part can accelerate ray-traced workloads and AI inference at the hardware level, while the AMD part cannot.

The memory subsystems also differ sharply. The RTX 4090 Mobile has 16 GB of GDDR6 on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The RX 5300M has 3 GB of GDDR6 on a 96-bit bus, delivering 168.0 GB/s. The NVIDIA part also supports PCIe 4.0 x16, while the AMD part uses PCIe 4.0 x8. Both are portable-device dependent for display outputs, and both use no external power connectors.

API support differs as well. The RTX 4090 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.

Specification Differences

The table below highlights only the fields where the two GPUs differ.

| Specification | NVIDIA GeForce RTX 4090 Mobile | AMD Radeon RX 5300M |

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

| Architecture | Ada Lovelace | RDNA 1.0 |

| Process node | 5 nm | 7 nm |

| Transistors | 45,900 million | 6,400 million |

| Die size | 379 mm² | 158 mm² |

| Transistor density | 121.1M / mm² | 40.5M / mm² |

| Base clock | 1335 MHz | 1000 MHz |

| Boost clock | 1695 MHz | 1445 MHz |

| Game clock | null | 1181 MHz |

| Memory clock | 2250 MHz, 18 Gbps effective | 1750 MHz, 14 Gbps effective |

| Memory size | 16 GB | 3 GB |

| Memory bus width | 256 bit | 96 bit |

| Memory bandwidth | 576.0 GB/s | 168.0 GB/s |

| Shading units | 9728 | 1408 |

| TMUs | 304 | 88 |

| ROPs | 112 | 32 |

| RT cores | 76 | null |

| Tensor cores | 304 | null |

| Pixel rate | 189.8 GPixel/s | 46.24 GPixel/s |

| Texture rate | 515.3 GTexel/s | 127.2 GTexel/s |

| FP32 | 32.98 TFLOPS | 4.069 TFLOPS |

| FP16 | 32.98 TFLOPS (1:1) | 8.138 TFLOPS (2:1) |

| TDP | 120 W | 85 W |

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

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

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

| Release date | 2023-01-02 | 2019-11-12 |

| Predecessor | GeForce 30 Mobile | Polaris Mobile |

| Successor | GeForce 50 Mobile | null |

| Avg benchmark score | 43667 | 36529 |

| Percentile vs all GPUs | 84 | 80 |

The RTX 4090 Mobile leads in every compute metric: FP32 throughput is 32.98 TFLOPS versus 4.069 TFLOPS, pixel rate is 189.8 GPixel/s versus 46.24 GPixel/s, and texture rate is 515.3 GTexel/s versus 127.2 GTexel/s. The NVIDIA part also has a higher TDP at 120 W versus 85 W, reflecting its larger silicon and higher performance envelope.

Head-to-Head Benchmarks

The database records only one shared benchmark between these two GPUs: Geekbench OpenCL. The RTX 4090 Mobile scores 180,831, while the RX 5300M scores 36,529. The delta is 395%, meaning the NVIDIA part delivers nearly five times the raw compute performance in this OpenCL workload.

For context, the RTX 4090 Mobile's average score across all nine of its recorded tests is 43,667. That average is pulled down by low scores in legacy DirectX tests: PassMark DirectX 9 at 310, DirectX 11 at 262, DirectX 10 at 173, and DirectX 12 at 107. Its strongest results are Geekbench OpenCL (180,831), Geekbench Vulkan (170,774), and PassMark G3D (27,212). The PassMark GPU Compute score is 12,347, and the G2D score is 984.

The RX 5300M has only one recorded benchmark, so its average score of 36,529 is exactly its Geekbench OpenCL result. Its nearest rival, the GeForce GTX TITAN X, scores 36,530, a 0% delta. The Radeon PRO W6400 scores 37,157, putting the RX 5300M 1.7% behind. These comparisons show the RX 5300M performing at the level of a mid-range desktop card from several generations earlier.

The RTX 4090 Mobile's nearest rivals include the RTX A6000 (44,075, which is 0.9% ahead of the 4090 Mobile), the Quadro M6000 (43,301, 0.8% behind), and the RTX 5050 Mobile (43,268, 0.9% behind). This places the 4090 Mobile in a cluster of high-end workstation and mobile GPUs, all within about 1% of each other. The RX 5300M, by contrast, sits in a cluster of older or lower-tier parts.

The Verdict

The data leaves no ambiguity. The NVIDIA GeForce RTX 4090 Mobile is in a completely different performance class than the AMD Radeon RX 5300M. In the single shared benchmark, it is 395% faster. It has 16 GB of memory versus 3 GB, 9728 shading units versus 1408, and hardware ray tracing and tensor cores that the AMD part lacks entirely.

The RTX 4090 Mobile is the obvious choice for anyone needing maximum mobile compute performance, ray tracing support, or large memory capacity. Its 84th percentile ranking and average score of 43,667 place it alongside professional workstation GPUs like the RTX A6000. The RX 5300M, with its 80th percentile and average score of 36,529, is a capable part for its era, matching the GTX TITAN X, but it cannot compete with the 4090 Mobile in any recorded metric.

The RX 5300M might still serve users with lighter workloads, older games, or limited power budgets, since its 85 W TDP is lower than the 4090 Mobile's 120 W. But the database shows no benchmark where it wins. Given the production status, the RTX 4090 Mobile is an active product, while the RX 5300M is end-of-life. For any new purchase or build, the data points squarely to the RTX 4090 Mobile.