AMD FirePro S9300 X2 vs NVIDIA GeForce RTX 4080 Mobile Comparison

Head-to-Head Benchmarks

The benchmark data delivers a decisive verdict: the NVIDIA GeForce RTX 4080 Mobile wins both recorded head-to-head tests against the AMD FirePro S9300 X2, with margins that are nothing short of dominant. In the Geekbench OpenCL test, the RTX 4080 Mobile scores 159,575 against the FirePro S9300 X2's 27,971, a staggering 470.5% advantage. That is not a marginal lead; it is a generational gap that places the two products in entirely different performance tiers.

The Vulkan results tell a similar story, albeit with a slightly narrower gap. The RTX 4080 Mobile posts 145,807 points, while the FirePro S9300 X2 manages 37,109. This works out to a 292.9% delta in favor of NVIDIA. The fact that the Vulkan margin is smaller than the OpenCL margin suggests the AMD card's older GCN architecture handles Vulkan's lower-level API relatively better, but even so, it remains far behind.

Looking at the broader database context, the RTX 4080 Mobile's average benchmark score of 38,135 places it at the 81st percentile of all GPUs. Its nearest rivals include the NVIDIA GeForce MX570 (38,299, 0.4% behind) and the NVIDIA GeForce RTX 5080 Mobile (38,349, 0.6% behind), meaning it sits in a tightly contested cluster at the top of the mobile GPU hierarchy. The AMD FirePro S9300 X2, with an average score of 32,540, lands at the 77th percentile. Its closest competitor is the NVIDIA T600 Mobile (32,849, 0.9% ahead), which shows that the FirePro is competitive with lower-tier modern parts but nowhere near the RTX 4080 Mobile's league.

It is notably the RTX 4080 Mobile has nine recorded benchmark scores across the PassMark suite and Geekbench, while the FirePro S9300 X2 only has two Geekbench entries. The missing PassMark data for the AMD card means the average score comparison is based on different test sets, but the head-to-head results are unambiguous: NVIDIA wins both available comparisons by enormous margins.

Where Each One Wins

The RTX 4080 Mobile wins every category where both products have recorded data. Its 470.5% lead in OpenCL makes it the clear choice for compute workloads that rely on that API, such as general-purpose GPU computing, physics simulations, and certain scientific applications. The 292.9% lead in Vulkan extends that dominance to modern game engines and cross-platform graphics workloads that favor the Vulkan API.

The FirePro S9300 X2, by contrast, has no recorded wins in the head-to-head data. However, its strengths lie elsewhere in the database profile. It offers 4 GB of HBM memory with a 4096-bit bus width, yielding 512.0 GB/s of bandwidth, which is actually higher than the RTX 4080 Mobile's 432.0 GB/s despite the NVIDIA card having 12 GB of GDDR6. For workloads that are bandwidth-bound rather than compute-bound, such as certain data analytics or large matrix operations, the FirePro's memory subsystem could theoretically offer a different performance profile. But the benchmark data does not support any practical win for the AMD card.

The FirePro's dual-slot form factor, 267 mm length, and 300 W TDP also position it for server racks rather than portable devices. The RTX 4080 Mobile, with its IGP slot width and no external power connectors, is designed for laptops. So the use-case split is not just about performance; it is about deployment environment. The data shows the RTX 4080 Mobile as the superior performer, while the FirePro's remaining relevance is tied to its server-oriented design and HBM memory bandwidth.

Architecture Differences

The architectural gap between these two GPUs is vast and explains the benchmark disparity. The RTX 4080 Mobile is built on NVIDIA's Ada Lovelace architecture using a 5 nm process node at TSMC, packing 35,800 million transistors into a 294 mm² die. This yields a transistor density of 121.8 million per square millimeter. The FirePro S9300 X2 uses AMD's older GCN 3.0 architecture on a 28 nm process, also at TSMC, with 8,900 million transistors spread across a massive 596 mm² die. Its transistor density is just 14.9 million per square millimeter, a nearly eightfold difference in density that reflects the process technology gap.

The shader configurations differ substantially. The RTX 4080 Mobile has 7,424 shading units, 232 TMUs, and 80 ROPs. It also includes 58 RT cores and 232 tensor cores, dedicated hardware for ray tracing and AI acceleration that the FirePro completely lacks, as its GCN 3.0 architecture predates those features. The FirePro has 4,096 shading units, 256 TMUs, and 64 ROPs. Despite having fewer cores overall, the FirePro's higher TMU count suggests it was designed with a different workload in mind, but the raw compute numbers tell the real story.

The RTX 4080 Mobile delivers 24.72 TFLOPS of FP32 performance, more than triple the FirePro's 7.987 TFLOPS. The NVIDIA card also reaches 24.72 TFLOPS in FP16 with a 1:1 ratio, a capability the FirePro does not even list. Clock speeds reinforce this: the RTX 4080 Mobile runs at 1290 MHz base and 1665 MHz boost, while the FirePro's base and boost clocks are not recorded in the database. Memory technology is another major split: the RTX 4080 Mobile uses 12 GB of GDDR6 on a 192-bit bus at 18 Gbps effective, while the FirePro uses 4 GB of HBM on a 4096-bit bus at 1000 Mbps effective. The FirePro's wider bus gives it the bandwidth edge, but the RTX 4080 Mobile's much faster memory clock and larger capacity make it more versatile.

Other key differences: the RTX 4080 Mobile supports PCIe 4.0 x16, while the FirePro uses PCIe 3.0 x16. The NVIDIA card supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the FirePro maxes out at DirectX 12 (12_0) and Vulkan 1.2.170. The RTX 4080 Mobile has display outputs (portable device dependent), while the FirePro has none, confirming its server-only role.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 4080 Mobile has an average benchmark score of 38,135, while the AMD FirePro S9300 X2 averages 32,540. The RTX 4080 Mobile also ranks at the 81st percentile of all GPUs, compared to the FirePro's 77th percentile.

Q: How much faster is the RTX 4080 Mobile in OpenCL performance?

A: The RTX 4080 Mobile scores 159,575 in Geekbench OpenCL, which is 470.5% higher than the FirePro S9300 X2's 27,971.

Q: Does the FirePro S9300 X2 have any advantage in memory bandwidth?

A: Yes. The FirePro S9300 X2 has 512.0 GB/s of memory bandwidth from its 4 GB HBM memory on a 4096-bit bus, while the RTX 4080 Mobile has 432.0 GB/s from 12 GB GDDR6 on a 192-bit bus.

Q: What is the transistor count difference between these two GPUs?

A: The RTX 4080 Mobile has 35,800 million transistors, while the FirePro S9300 X2 has 8,900 million. The RTX 4080 Mobile also achieves a far higher transistor density at 121.8M per mm² versus 14.9M per mm².

Q: Which GPU supports ray tracing and tensor cores?

A: Only the NVIDIA GeForce RTX 4080 Mobile, which features 58 RT cores and 232 tensor cores. The AMD FirePro S9300 X2 has no RT or tensor core entries in the database.

Q: What are the power requirements for each card?

A: The RTX 4080 Mobile has a 110 W TDP and uses no external power connectors, while the FirePro S9300 X2 has a 300 W TDP, requires 2x 8-pin power connectors, and lists a 700 W suggested PSU.

The Verdict

The data is unequivocal: the NVIDIA GeForce RTX 4080 Mobile is the superior GPU in every measurable benchmark category. It wins both head-to-head tests by margins of 470.5% and 292.9%, has a higher average benchmark score, ranks higher in the global percentile, and offers modern features like ray tracing cores, tensor cores, and DirectX 12 Ultimate support. Its 24.72 TFLOPS of FP32 compute is more than triple the FirePro's 7.987 TFLOPS, and it does so at a 110 W TDP versus the FirePro's 300 W.

Who should pick the RTX 4080 Mobile? Anyone needing a high-performance mobile GPU for gaming, content creation, or AI-accelerated workloads. Its 12 GB of GDDR6 memory, 58 RT cores, and 232 tensor cores make it suitable for modern games and compute tasks that leverage ray tracing or DLSS-style acceleration. It also holds its own against its nearest rivals, sitting within 1% of the MX570 and RTX 5080 Mobile in average score.

Who should pick the AMD FirePro S9300 X2? The data suggests a very narrow audience. It is an end-of-life server product with no display outputs, a dual-slot 267 mm form factor, and a 300 W power draw. Its only advantages are higher memory bandwidth (512.0 GB/s vs 432.0 GB/s) and a wider 4096-bit bus. If a workload is purely bandwidth-limited and runs on a server with the required 700 W PSU, the FirePro could still function. But its 4 GB memory capacity is severely limiting, and its 7.987 TFLOPS of compute is a fraction of the RTX 4080 Mobile's output. For virtually any modern workload, the RTX 4080 Mobile is the recommended choice.

Specification Differences

| Specification | NVIDIA GeForce RTX 4080 Mobile | AMD FirePro S9300 X2 |

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

| Architecture | Ada Lovelace | GCN 3.0 |

| Process Node | 5 nm | 28 nm |

| Transistors | 35,800 million | 8,900 million |

| Die Size | 294 mm² | 596 mm² |

| Transistor Density | 121.8M / mm² | 14.9M / mm² |

| Memory Size | 12 GB | 4 GB |

| Memory Type | GDDR6 | HBM |

| Memory Bus Width | 192 bit | 4096 bit |

| Memory Bandwidth | 432.0 GB/s | 512.0 GB/s |

| Shading Units | 7424 | 4096 |

| TMUs | 232 | 256 |

| ROPs | 80 | 64 |

| RT Cores | 58 | None |

| Tensor Cores | 232 | None |

| FP32 Performance | 24.72 TFLOPS | 7.987 TFLOPS |

| TDP | 110 W | 300 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | 2x 8-pin |

| Suggested PSU | None listed | 700 W |

| Bus Interface | PCIe 4.0 x16 | PCIe 3.0 x16 |

| Display Outputs | Portable Device Dependent | No outputs |

| DirectX Support | 12 Ultimate (12_2) | 12 (12_0) |

| Vulkan Support | 1.4 | 1.2.170 |

| Release Date | 2023-01-02 | 2016-03-30 |

| Production Status | Active | End-of-life |

| Launch MSRP | Not listed | 5,999 USD |