AMD Radeon Pro Vega 64 vs NVIDIA RTX A4500 Mobile Comparison

The NVIDIA RTX A4500 Mobile is the clear benchmark leader in this comparison, delivering a substantial 48.1% advantage over the AMD Radeon Pro Vega 64 in OpenCL compute workloads. The data positions the RTX A4500 Mobile in the 93rd percentile of all GPUs, while the Radeon Pro Vega 64 sits at the 91st percentile, a gap that reflects its older GCN architecture and lower raw compute throughput. The NVIDIA part wins both head-to-head tests, but the margin in Vulkan is narrow at just 3.8%, indicating that the AMD card remains competitive in graphics-oriented APIs.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA RTX A4500 Mobile scores 91,134 on average, which is 25.9% higher than the AMD Radeon Pro Vega 64’s 72,379 average.

Q: How large is the performance gap in OpenCL?

A: The RTX A4500 Mobile scores 105,307 in Geekbench OpenCL versus 71,094 for the Radeon Pro Vega 64, a 48.1% difference in favor of the NVIDIA part.

Q: Does the AMD card win any benchmark in the head-to-head comparison?

A: No. The data shows the NVIDIA RTX A4500 Mobile wins both tested benchmarks (OpenCL and Vulkan), with the AMD card losing by 48.1% and 3.8% respectively.

Q: What is the memory configuration difference?

A: Both cards have 16 GB of memory, but the RTX A4500 Mobile uses GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth, while the Radeon Pro Vega 64 uses HBM2 on a 2048-bit bus with 402.4 GB/s bandwidth.

Q: How do the transistor counts compare?

A: The NVIDIA GA104 chip contains 17,400 million transistors on a 392 mm² die, whereas the AMD Vega 10 chip has 12,500 million transistors on a larger 495 mm² die.

Q: What API levels does each GPU support?

A: The RTX A4500 Mobile supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Radeon Pro Vega 64 supports DirectX 12 (12_1) and Vulkan 1.3.

Architecture Differences

The NVIDIA RTX A4500 Mobile is built on the Ampere architecture using an 8 nm process from Samsung, featuring the GA104 chip. This is a modern design with 17,400 million transistors packed into a 392 mm² die, yielding a transistor density of 44.4 million per square millimeter. In contrast, the AMD Radeon Pro Vega 64 uses the older GCN 5.0 architecture on a 14 nm process from GlobalFoundries, with the Vega 10 chip containing 12,500 million transistors spread across a larger 495 mm² die, resulting in a lower density of 25.3 million per square millimeter.

The architectural divide extends to compute resources. The NVIDIA part has 5,888 shading units, 184 texture mapping units, and 96 ROPs, alongside 46 dedicated ray tracing cores and 184 tensor cores. The AMD GPU offers 4,096 shading units, 256 TMUs, and 64 ROPs, but it lacks dedicated ray tracing and tensor cores entirely. This means the RTX A4500 Mobile can accelerate ray-traced workloads and AI inference tasks, while the Radeon Pro Vega 64 relies on traditional shader-based processing for all operations.

Clock speeds and memory technology also differ significantly. The RTX A4500 Mobile has a base clock of 930 MHz and a boost clock of 1500 MHz, with GDDR6 memory running at 2000 MHz (16 Gbps effective). The Radeon Pro Vega 64 operates at a higher base clock of 1250 MHz and boost of 1350 MHz, but its HBM2 memory runs at just 786 MHz (1572 Mbps effective). Despite the lower memory clock, the AMD card’s 2048-bit bus width delivers 402.4 GB/s bandwidth, though this is still 21.4% less than the NVIDIA card’s 512.0 GB/s.

Where Each One Wins

The NVIDIA RTX A4500 Mobile is the definitive winner in compute-heavy applications. Its 17.66 TFLOPS of FP32 performance is 59.7% higher than the Radeon Pro Vega 64’s 11.06 TFLOPS, making it the clear choice for tasks that rely on single-precision floating-point math, such as scientific simulations, rendering, and machine learning inference. The presence of tensor cores further strengthens its position for AI workloads, while the dedicated ray tracing cores provide hardware acceleration that the AMD card simply cannot match.

The AMD Radeon Pro Vega 64 does have one notable theoretical advantage: its FP16 throughput. The AMD card delivers 22.12 TFLOPS of FP16 performance via a 2:1 ratio, which is 25.2% higher than the NVIDIA card’s 17.66 TFLOPS (achieved at a 1:1 ratio). This could benefit workloads that use half-precision arithmetic, though the NVIDIA card’s tensor cores may offset this in practice for AI tasks. Additionally, the AMD card has a higher texture fill rate of 345.6 GTexel/s versus 276.0 GTexel/s for NVIDIA, a 25.2% advantage that could help in texture-heavy rendering scenarios.

The power envelope also differentiates the two. The RTX A4500 Mobile has a TDP of 140 W, while the Radeon Pro Vega 64 draws 250 W, meaning the NVIDIA card achieves its higher performance with 44.0% less power consumption. This makes the RTX A4500 Mobile more suitable for thermally constrained mobile workstations, whereas the AMD card’s higher power draw may limit its deployment in thinner chassis.

Specification Differences

| Specification | NVIDIA RTX A4500 Mobile | AMD Radeon Pro Vega 64 |

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

| Architecture | Ampere | GCN 5.0 |

| Process Node | 8 nm | 14 nm |

| Foundry | Samsung | GlobalFoundries |

| Transistors | 17,400 million | 12,500 million |

| Die Size | 392 mm² | 495 mm² |

| Transistor Density | 44.4M / mm² | 25.3M / mm² |

| Base Clock | 930 MHz | 1250 MHz |

| Boost Clock | 1500 MHz | 1350 MHz |

| Memory Type | GDDR6 | HBM2 |

| Memory Bus Width | 256 bit | 2048 bit |

| Memory Bandwidth | 512.0 GB/s | 402.4 GB/s |

| Shading Units | 5888 | 4096 |

| TMUs | 184 | 256 |

| ROPs | 96 | 64 |

| RT Cores | 46 | None |

| Tensor Cores | 184 | None |

| Pixel Rate | 144.0 GPixel/s | 86.40 GPixel/s |

| Texture Rate | 276.0 GTexel/s | 345.6 GTexel/s |

| FP32 Performance | 17.66 TFLOPS | 11.06 TFLOPS |

| FP16 Performance | 17.66 TFLOPS (1:1) | 22.12 TFLOPS (2:1) |

| TDP | 140 W | 250 W |

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

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

| Vulkan Support | 1.4 | 1.3 |

| Release Date | 2022-03-21 | 2017-06-26 |

Head-to-Head Benchmarks

The Geekbench OpenCL test reveals a massive performance gulf between these two GPUs. The NVIDIA RTX A4500 Mobile scores 105,307, while the AMD Radeon Pro Vega 64 manages only 71,094. This 48.1% difference is the single largest margin in the comparison and underscores the generational leap in compute capability. The RTX A4500 Mobile’s higher shading unit count (5,888 versus 4,096) and superior memory bandwidth (512.0 GB/s versus 402.4 GB/s) contribute directly to this result, allowing it to process larger data sets and more complex kernels with greater efficiency.

The Geekbench Vulkan test tells a different story. Here, the RTX A4500 Mobile scores 76,960, only 3.8% ahead of the Radeon Pro Vega 64’s 74,174. This much narrower margin suggests that graphics-oriented workloads do not benefit as heavily from the NVIDIA card’s newer architecture. The AMD card’s higher texture rate (345.6 GTexel/s versus 276.0 GTexel/s) and higher base clock (1250 MHz versus 930 MHz) help it remain competitive in this API, even though it ultimately loses the test.

The average benchmark scores reinforce the NVIDIA card’s overall superiority. The RTX A4500 Mobile averages 91,134 across all tests, placing it in the 93rd percentile of all GPUs. Its nearest rivals include the desktop RTX A4500 (average 91,671, 0.6% higher) and the AMD Radeon Instinct MI60 (average 92,466, 1.4% higher). The Radeon Pro Vega 64 averages 72,379, sitting in the 91st percentile, with rivals like the NVIDIA TITAN X Pascal (average 72,098, 0.4% lower) and AMD Radeon RX 6650M (average 71,768, 0.9% lower) showing that the AMD card is performance-competitive with older high-end parts but not with the newer Ampere generation.

The Verdict

The data is unambiguous: the NVIDIA RTX A4500 Mobile is the superior GPU for nearly all workloads. Its 48.1% OpenCL lead and 25.9% average score advantage over the Radeon Pro Vega 64 make it the default recommendation for users who need maximum compute performance in a mobile workstation. The RTX A4500 Mobile also achieves this with a 140 W TDP, which is 44.0% lower than the AMD card’s 250 W, providing better performance per watt for battery-constrained environments.

The AMD Radeon Pro Vega 64 retains a niche for specific use cases. Its higher FP16 throughput (22.12 TFLOPS versus 17.66 TFLOPS) and superior texture fill rate (345.6 GTexel/s versus 276.0 GTexel/s) could make it appealing for workloads that prioritize half-precision math or heavy texturing. However, these advantages do not translate into benchmark wins, as the Vulkan test shows only a 3.8% difference in NVIDIA’s favor. The AMD card’s 91st percentile ranking also places it well below the RTX A4500 Mobile’s 93rd percentile, and its nearest rivals are all older-generation parts, indicating it is closer to the end of its performance relevance.

For buyers choosing between these two, the RTX A4500 Mobile is the clear pick for professionals running compute-intensive applications, AI inference, or ray-traced rendering. The Radeon Pro Vega 64 might still serve users with legacy software optimized for GCN architecture or those who require higher FP16 throughput, but the benchmark data shows it is outclassed in every head-to-head test. The NVIDIA card’s newer architecture, higher memory bandwidth, and dedicated RT and tensor cores make it the more future-proof investment, despite the AMD card’s lower release date. Ultimately, the RTX A4500 Mobile wins this comparison on raw performance, efficiency, and architectural capability.