AMD Radeon RX 7800M vs Intel Arc A350M Comparison

Where Each One Wins

The benchmark data paints a clear picture of two mobile GPUs aimed at entirely different segments of the laptop market. The AMD Radeon RX 7800M wins every single recorded head-to-head benchmark, with both wins coming in compute-oriented API tests. The Intel Arc A350M, by contrast, has no recorded wins in the head-to-head dataset.

The AMD Radeon RX 7800M dominates in Geekbench OpenCL, scoring 120778 against the Intel Arc A350M's 24546, a massive 392% advantage. In Geekbench Vulkan, the AMD part extends its lead further, posting 126668 versus 24747, a 411.9% delta. These are not marginal differences; they represent completely different performance tiers.

Looking at the broader benchmark suite, the AMD Radeon RX 7800M also holds a substantial average benchmark score of 27883, placing it in the 73rd percentile of all GPUs. The Intel Arc A350M, with an average score of 24647, sits at the 70th percentile. While the percentiles are relatively close, the raw average score difference of roughly 3236 points highlights the performance gap.

The use-case split is straightforward: the AMD Radeon RX 7800M is designed for demanding gaming and compute workloads where raw throughput matters, while the Intel Arc A350M is positioned for lighter, more power-efficient mobile scenarios. The data shows no scenario where the Intel part wins outright; its strengths lie in its dramatically lower power envelope rather than in benchmark scores.

Architecture Differences

The architectural gap between these two GPUs is generational and fundamental. The AMD Radeon RX 7800M uses the Navi 32 chip built on RDNA 3.0 architecture, codenamed "Wheat Nas," and belongs to the Navi Mobile (RX 7000M) generation. It is manufactured on a 5 nm process at TSMC. The Intel Arc A350M uses the DG2-128 chip based on Xe-HPG architecture, part of the Alchemist (Arc 3 Mobile) generation, fabricated on a 6 nm process also at TSMC.

Transistor counts reveal the scale difference. The AMD chip packs 28,100 million transistors on a 346 mm² die, yielding a transistor density of 81.2M per mm². The Intel chip contains 7,200 million transistors on a 157 mm² die, with a density of 45.9M per mm². The AMD GPU has nearly four times the transistor budget and more than double the die area.

Compute resources diverge sharply. The RX 7800M features 3840 shading units, 240 texture mapping units, and 96 ROPs, plus 60 ray tracing cores. The Arc A350M has 768 shading units, 48 TMUs, 24 ROPs, and 6 ray tracing cores. This is a 5:1 ratio in shading units, a 5:1 ratio in TMUs, and a 4:1 ratio in ROPs, explaining the massive compute performance delta.

Clock behavior also differs. The AMD part runs at a 1295 MHz base clock, boosting to 2335 MHz, with a game clock of 2145 MHz. The Intel part operates at 1150 MHz base and 2200 MHz boost. Memory clocks are 2250 MHz (18 Gbps effective) for AMD versus 1750 MHz (14 Gbps effective) for Intel. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The AMD GPU's FP32 throughput is 35.87 TFLOPS, while the Intel Arc A350M manages just 3.379 TFLOPS. Notably, the Intel part offers 6.758 TFLOPS FP16 with a 2:1 ratio, whereas AMD provides 35.87 TFLOPS FP16 at a 1:1 ratio. This means AMD's FP16 performance is over five times higher in absolute terms.

Head-to-Head Benchmarks

The head-to-head dataset contains two Geekbench tests, both heavily favoring the AMD Radeon RX 7800M. In Geekbench OpenCL, the AMD part scores 120778 against Intel's 24546. The delta percentage is 392%, meaning the AMD GPU delivers nearly four times the OpenCL compute performance. This test exercises general-purpose GPU compute through the OpenCL API, and the results align with the raw FP32 and shading unit disparities.

In Geekbench Vulkan, the AMD Radeon RX 7800M scores 126668 versus 24747 for the Intel Arc A350M, a delta of 411.9%. Vulkan is a low-level graphics and compute API, and the AMD architecture's higher texture rate (560.4 GTexel/s versus 105.6 GTexel/s) and pixel rate (224.2 GPixel/s versus 52.80 GPixel/s) contribute to this outcome. The AMD part's 432.0 GB/s memory bandwidth, versus Intel's 112.0 GB/s, also plays a role in sustained compute workloads.

The AMD GPU's average benchmark score of 27883 is 0.2% above the AMD Radeon Pro Vega 20 and 0.3% below the AMD Radeon Pro W5500X, according to nearest rival data. The Intel Arc A350M's average of 24647 sits 0.4% below the AMD Radeon RX 590 and 0.5% below the NVIDIA RTX A5000 Mobile. These nearest-rival comparisons show that even the Intel part's closest competitors in the database are significantly outscored by the AMD Radeon RX 7800M.

In the PassMark suite, the AMD Radeon RX 7800M posts 17613 in G3D, 9342 in GPU Compute, 892 in G2D, and lower scores in DirectX 9 (174), DirectX 10 (99), DirectX 11 (176), and DirectX 12 (89). These figures are not part of the head-to-head comparison but provide additional context for the AMD part's overall capability profile. The Intel Arc A350M has no recorded PassMark results in the database.

Specification Differences

The following table highlights only the fields where the two GPUs differ:

| Field | AMD Radeon RX 7800M | Intel Arc A350M |

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

| Chip | Navi 32 | DG2-128 |

| Architecture | RDNA 3.0 | Xe-HPG |

| Codename | Wheat Nas | null |

| Generation | Navi Mobile (RX 7000M) | Alchemist (Arc 3 Mobile) |

| Process Node | 5 nm | 6 nm |

| Transistors | 28,100 million | 7,200 million |

| Die Size | 346 mm² | 157 mm² |

| Transistor Density | 81.2M / mm² | 45.9M / mm² |

| Base Clock | 1295 MHz | 1150 MHz |

| Boost Clock | 2335 MHz | 2200 MHz |

| Game Clock | 2145 MHz | null |

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

| Memory Size | 12 GB | 4 GB |

| Memory Bus Width | 192 bit | 64 bit |

| Memory Bandwidth | 432.0 GB/s | 112.0 GB/s |

| Shading Units | 3840 | 768 |

| TMUs | 240 | 48 |

| ROPs | 96 | 24 |

| RT Cores | 60 | 6 |

| Pixel Rate | 224.2 GPixel/s | 52.80 GPixel/s |

| Texture Rate | 560.4 GTexel/s | 105.6 GTexel/s |

| FP32 | 35.87 TFLOPS | 3.379 TFLOPS |

| FP16 | 35.87 TFLOPS (1:1) | 6.758 TFLOPS (2:1) |

| TDP | 180 W | 25 W |

| Power Connectors | None | null |

| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |

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

| Release Date | 2024-09-10 | 2022-03-29 |

| Predecessor | Polaris Mobile | null |

| Average Benchmark Score | 27883 | 24647 |

| Percentile vs All GPUs | 73 | 70 |

The AMD part also has a larger memory pool (12 GB versus 4 GB) and a wider bus (192-bit versus 64-bit), which directly explains its 432.0 GB/s bandwidth versus 112.0 GB/s. The power draw difference is stark: 180 W versus 25 W. Both are listed as IGP slot width with portable device dependent display outputs.

FAQ

Q: Which GPU has higher raw compute performance in OpenCL?

A: The AMD Radeon RX 7800M scores 120778 in Geekbench OpenCL, which is 392% higher than the Intel Arc A350M's 24546.

Q: How do the two GPUs compare in Vulkan benchmarks?

A: The AMD Radeon RX 7800M scores 126668 in Geekbench Vulkan, while the Intel Arc A350M scores 24747. This represents a 411.9% advantage for the AMD part.

Q: What is the memory bandwidth difference between the two?

A: The AMD Radeon RX 7800M provides 432.0 GB/s bandwidth via a 192-bit bus with 12 GB GDDR6. The Intel Arc A350M offers 112.0 GB/s through a 64-bit bus with 4 GB GDDR6.

Q: Which GPU has a higher transistor count and density?

A: The AMD Radeon RX 7800M contains 28,100 million transistors on a 346 mm² die, giving a density of 81.2M per mm². The Intel Arc A350M has 7,200 million transistors on a 157 mm² die, with a density of 45.9M per mm².

Q: What are the TDP ratings for each GPU?

A: The AMD Radeon RX 7800M is rated at 180 W TDP, while the Intel Arc A350M is rated at 25 W TDP, a 155 W difference.

Q: How do their average benchmark scores compare to nearest rivals?

A: The AMD Radeon RX 7800M's average score of 27883 is 0.2% above the AMD Radeon Pro Vega 20 and 0.3% below the AMD Radeon Pro W5500X. The Intel Arc A350M's average of 24647 is 0.4% below the AMD Radeon RX 590 and 0.5% below the NVIDIA RTX A5000 Mobile.