AMD Radeon RX 7800M vs NVIDIA RTX PRO 4500 Blackwell Comparison

The NVIDIA RTX PRO 4500 Blackwell and the AMD Radeon RX 7800M occupy very different corners of the GPU market, one aimed at professional workstations and the other at mobile gaming systems. The benchmark data in the database shows a decisive performance gap, but the specifics of that gap, the architectural choices behind it, and the intended use cases for each card deserve a closer look.

Head-to-Head Benchmarks

The recorded data shows a clean sweep for the NVIDIA RTX PRO 4500 Blackwell across all nine shared benchmark tests. The most dramatic margin appears in the 3DMark Steel Nomad DX12 test, where the NVIDIA card scores 7025 against the AMD card’s 2994, a 134.6% advantage. This is not a marginal win; it is a doubling of raw rendering performance in a modern DirectX 12 workload, which suggests that the NVIDIA card handles high-end graphics loads with far more headroom.

The Vulkan results tell a similar story. In the Geekbench Vulkan test, the NVIDIA card scores 221768, while the AMD Radeon RX 7800M manages 126668, a 75.1% delta. That is a substantial lead in a cross-platform graphics API, and it indicates that the NVIDIA card’s architecture is better suited to compute-heavy and modern rendering tasks.

The older DirectX tests also favor NVIDIA, though the margins vary. In Passmark DirectX 10, the NVIDIA card scores 204 versus 99, a 106.1% difference. In DirectX 11, the scores are 320 and 176, an 81.8% gap. DirectX 9 shows a 128.2% difference, with the NVIDIA card at 397 and the AMD card at 174. The closest result in the entire set is Passmark DirectX 12, where the NVIDIA card scores 119 and the AMD card scores 89, a 33.7% lead. Even in its narrowest win, the NVIDIA card outperforms the AMD card by a healthy margin, but the smaller delta in DX12 suggests that the AMD card’s RDNA 3.0 architecture is relatively more competitive in this specific API.

The compute and 2D tests reinforce the NVIDIA card’s dominance. In Passmark GPU Compute, the NVIDIA card scores 19255 against 9342, a 106.1% advantage. The Passmark G3D test shows the NVIDIA card at 33360 and the AMD card at 17613, an 89.4% difference. Even in the 2D test, Passmark G2D, the NVIDIA card leads with 1336 versus 892, a 49.8% gap. Across every recorded metric, the NVIDIA RTX PRO 4500 Blackwell wins, with no benchmark where the AMD Radeon RX 7800M takes the lead.

Looking at the average benchmark scores, the NVIDIA card sits at 31532, while the AMD card averages 27883. The NVIDIA card’s nearest rivals in the database include the NVIDIA TITAN RTX at an average score of 31676 (a 0.5% difference), the Intel Arc Pro A30M at 31894 (1.1% difference), and the NVIDIA GRID M60-1Q at 31220 (1% difference). The AMD card’s nearest rivals include the AMD Radeon Pro Vega 20 at 27839 (0.2% difference) and the NVIDIA GeForce GTX 980 Ti at 28020 (0.5% difference). These figures place the two cards in different performance tiers, with the NVIDIA card competing against older high-end desktop parts and the AMD card sitting closer to mid-range or previous-generation desktop cards.

Architecture Differences

The two cards are built on fundamentally different architectures, and the data shows the consequences. The NVIDIA RTX PRO 4500 Blackwell uses the GB203 chip with the Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. The AMD Radeon RX 7800M uses the Navi 32 chip with RDNA 3.0 architecture, also on a 5 nm process at TSMC. Both cards share the same process node and foundry, but that is where the similarities end.

The transistor counts differ sharply. The NVIDIA card packs 45,600 million transistors on a die size of 378 mm², resulting in a transistor density of 120.6 million per mm². The AMD card has 28,100 million transistors on a 346 mm² die, giving it a density of 81.2 million per mm². The NVIDIA card is not only larger in terms of transistor count but also denser, which allows it to fit more compute resources into a similar physical footprint.

The memory architecture is another major divergence. The NVIDIA card uses 32 GB of GDDR7 memory on a 256-bit bus, delivering 896.0 GB/s of bandwidth. The AMD card uses 12 GB of GDDR6 memory on a 192-bit bus, delivering 432.0 GB/s. That is less than half the memory capacity and roughly half the bandwidth. For workloads that scale with memory capacity, such as large dataset processing or high-resolution textures, the NVIDIA card’s 32 GB pool is a decisive advantage. The AMD card’s 12 GB is more typical of a mobile gaming part, where memory is often a constraint.

Clock speeds also differ. The NVIDIA card runs at a base clock of 1635 MHz and a boost clock of 2407 MHz, with memory at 1750 MHz (28 Gbps effective). The AMD card has a base clock of 1295 MHz and a boost clock of 2335 MHz, with a game clock of 2145 MHz and memory at 2250 MHz (18 Gbps effective). The NVIDIA card has higher base and boost clocks, which contributes to its performance lead.

The compute resources tell a clear story. The NVIDIA card has 10496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores. The AMD card has 3840 shading units, 240 TMUs, 96 ROPs, and 60 RT cores, with no tensor cores listed. The NVIDIA card also leads in pixel rate (269.6 GPixel/s versus 224.2 GPixel/s), texture rate (789.5 GTexel/s versus 560.4 GTexel/s), and FP32 performance (50.53 TFLOPS versus 35.87 TFLOPS). The FP16 performance is listed at 1:1 for both cards, meaning the NVIDIA card also leads there at 50.53 TFLOPS against 35.87 TFLOPS.

The power and physical specifications also differ. The NVIDIA card has a TDP of 200 W, is dual-slot, uses a single 16-pin power connector, and requires a suggested PSU of 550 W. It uses a PCIe 5.0 x16 interface and has four DisplayPort 2.1b outputs. The AMD card has a TDP of 180 W, is listed as an IGP (integrated graphics processor) form factor with no power connectors, and uses a PCIe 4.0 x16 interface. Its display outputs are listed as portable device dependent, which reflects its mobile positioning. The NVIDIA card is longer at 267 mm (10.5 inches), while the AMD card has no listed dimensions, consistent with its mobile design.

The Verdict

The data points to a clear conclusion: the NVIDIA RTX PRO 4500 Blackwell is the more powerful GPU by a wide margin. It wins every benchmark in the database, often by more than 75%, and in some cases by over 130%. Its 32 GB of GDDR7 memory, higher compute throughput, and larger transistor budget make it suitable for professional workloads, such as rendering, compute, and large-scale data handling. The AMD Radeon RX 7800M, with its 12 GB of GDDR6 memory and lower compute resources, is better positioned for mobile gaming where power efficiency and portability matter more than raw peak performance.

The average benchmark scores support this tier separation. The NVIDIA card’s average of 31532 places it among older high-end desktop parts, while the AMD card’s average of 27883 aligns it with mid-range or previous-generation desktop GPUs. The percentile rankings also differ, with the NVIDIA card at the 76th percentile of all GPUs and the AMD card at the 73rd percentile. That is a smaller gap in percentile terms, but the raw score difference is substantial.

Specification Differences

The two cards differ in nearly every specification field. The NVIDIA card uses the GB203 chip and Blackwell 2.0 architecture, while the AMD card uses the Navi 32 chip and RDNA 3.0 architecture. The NVIDIA card has 45,600 million transistors on a 378 mm² die, while the AMD card has 28,100 million on a 346 mm² die. The NVIDIA card has a base clock of 1635 MHz and a boost clock of 2407 MHz, while the AMD card has a base clock of 1295 MHz and a boost clock of 2335 MHz.

Memory is a major differentiator. The NVIDIA card has 32 GB of GDDR7 on a 256-bit bus with 896.0 GB/s bandwidth, while the AMD card has 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s. The NVIDIA card has 10496 shading units, 328 TMUs, 112 ROPs, 82 RT cores, and 328 tensor cores, while the AMD card has 3840 shading units, 240 TMUs, 96 ROPs, and 60 RT cores, with no tensor cores listed.

The NVIDIA card has a TDP of 200 W, is dual-slot, uses a 16-pin connector, and requires a 550 W PSU. The AMD card has a TDP of 180 W, is an IGP with no power connectors, and has no suggested PSU. The NVIDIA card uses PCIe 5.0 x16 and has four DisplayPort 2.1b outputs, while the AMD card uses PCIe 4.0 x16 and has portable device dependent outputs. The NVIDIA card is 267 mm long, 111 mm high, and 40 mm wide, while the AMD card has no listed dimensions.

FAQ

Q: Which card has more memory and bandwidth?

A: The NVIDIA RTX PRO 4500 Blackwell has 32 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s bandwidth. The AMD Radeon RX 7800M has 12 GB of GDDR6 memory on a 192-bit bus with 432.0 GB/s bandwidth.

Q: How do the two cards compare in the 3DMark Steel Nomad DX12 test?

A: The NVIDIA card scores 7025, while the AMD card scores 2994, a 134.6% advantage for NVIDIA.

Q: Are there any benchmarks where the AMD Radeon RX 7800M wins?

A: No. The database records show the NVIDIA card winning all nine shared benchmarks, including DirectX 9, 10, 11, 12, Vulkan, 3DMark Steel Nomad, G2D, G3D, and GPU Compute.

Q: What are the power requirements for each card?

A: The NVIDIA card has a TDP of 200 W and requires a 550 W power supply, using a single 16-pin connector. The AMD card has a TDP of 180 W, uses no power connectors, and has no suggested PSU listed.

Q: Which card has more shading units and RT cores?

A: The NVIDIA card has 10496 shading units and 82 RT cores. The AMD card has 3840 shading units and 60 RT cores.

Q: What is the release date for each card?

A: The NVIDIA RTX PRO 4500 Blackwell was released on 2025-03-17, while the AMD Radeon RX 7800M was released on 2024-09-10.

Where Each One Wins

The NVIDIA RTX PRO 4500 Blackwell wins in every measured benchmark category, so the use-case split is not about performance advantages for the AMD card, but about suitability for different environments. The NVIDIA card is the clear choice for professional and workstation tasks. Its 32 GB of GDDR7 memory and 896.0 GB/s bandwidth support large datasets, high-resolution textures, and compute-heavy applications. Its 328 tensor cores and 82 RT cores make it well-suited for AI workloads and ray-traced rendering. Its 50.53 TFLOPS of FP32 performance and 789.5 GTexel/s texture rate provide the raw throughput needed for complex 3D scenes and simulation tasks.

The AMD Radeon RX 7800M, despite losing every benchmark, has its own role. Its 180 W TDP, IGP form factor, and lack of power connectors indicate it is designed for mobile systems, likely laptops or portable devices. Its 12 GB of GDDR6 memory, while smaller, is still sufficient for many gaming workloads at standard resolutions. Its 35.87 TFLOPS of FP32 performance and 560.4 GTexel/s texture rate are respectable for a mobile part. The AMD card’s lower power draw and portable device dependent outputs make it more suitable for battery-powered systems where the NVIDIA card’s 200 W TDP and dual-slot design would be impractical.

For users who need maximum performance in a desktop workstation, the data clearly favors the NVIDIA card. For users who need a GPU that can fit into a mobile chassis and run games at moderate settings, the AMD card is the more realistic option, even though its benchmark scores are lower. The recorded data does not show any scenario where the AMD card outperforms the NVIDIA card, but it does show a card that is built for a different purpose: portability and efficiency over peak performance.