AMD Radeon RX 7900M vs NVIDIA GeForce RTX 5070 Mobile Comparison

The AMD Radeon RX 7900M and the NVIDIA GeForce RTX 5070 Mobile represent two distinct approaches to high-performance mobile graphics. The RX 7900M is a large, power-hungry chip built for maximum throughput, while the RTX 5070 Mobile is a more compact, efficient design. The recorded data shows a clear performance hierarchy, with the AMD part holding a significant lead in the benchmarks tested, though the NVIDIA part offers its own set of architectural and efficiency advantages.

Where Each One Wins

Based on the head-to-head benchmark results, the AMD Radeon RX 7900M is the outright winner in every recorded comparison. The database shows that the RX 7900M wins both of the shared tests, giving it a 2-0 record against the RTX 5070 Mobile. This is not a marginal victory; the margin in one test is substantial, indicating a major performance gap in certain workloads.

The AMD GPU’s wins are primarily in compute-heavy and graphics-API-specific scenarios. Its Geekbench OpenCL score of 129,499 is a raw measure of general-purpose compute performance, a workload that scales well with the massive array of shading units and memory bandwidth available to the RX 7900M. The Geekbench Vulkan score of 158,760 is an even more dominant victory, showing that the AMD architecture excels in modern, low-level graphics APIs that can take full advantage of its hardware resources.

The NVIDIA GeForce RTX 5070 Mobile does not win any of the direct comparisons. However, its own standalone benchmark results, which include multiple Passmark tests, show it is a capable performer in its own right. The data suggests that the RTX 5070 Mobile is designed for a different performance envelope, one that prioritizes efficiency and a specific set of features rather than raw, unrestricted throughput. Its wins are not in performance, but in its operational profile, which the data shows through a dramatically lower power draw and a more modern feature set.

The Verdict

The data is unambiguous regarding raw performance: the AMD Radeon RX 7900M is significantly faster. Its average benchmark score of 97,487 places it in the 94th percentile of all GPUs, and it outperforms its nearest rival, the AMD Radeon Pro VII, by 0.4%. In contrast, the NVIDIA GeForce RTX 5070 Mobile has an average score of 29,928, putting it in the 75th percentile, with its closest competitor being the NVIDIA GeForce RTX 3070 Ti, which it trails by a mere 0.1%. This places the two cards in entirely different performance tiers.

The decision between them depends entirely on the user’s priorities. For users who require the absolute maximum frame rates and compute performance in a mobile workstation or high-end gaming laptop, the RX 7900M is the clear choice. Its lead in the Vulkan benchmark is massive, and its compute performance is top-tier.

The RTX 5070 Mobile is for a different class of machine. With a 50 W TDP, it is designed for thinner, lighter laptops where thermal and power budgets are tight. It offers a modern feature set, including support for the PCIe 5.0 interface and a large number of tensor cores, which the data indicates are absent from the AMD part. For users who need a balance of performance and efficiency, or who require specific NVIDIA features, the RTX 5070 Mobile is the appropriate selection. The recorded data does not show it winning any performance tests, so its appeal lies in its efficiency and feature set, not in raw benchmark scores.

Head-to-Head Benchmarks

The most telling result is the Geekbench Vulkan test. The AMD Radeon RX 7900M scores 158,760, which is 35.7% higher than the RTX 5070 Mobile’s 116,960. This is a massive delta and shows that in Vulkan-based games and applications, the RX 7900M provides a substantially better experience. The RX 7900M’s 72 RT cores and 4,608 shading units are able to be fully utilized in this API, leading to a dominant performance.

The Geekbench OpenCL test tells a similar, though less dramatic, story. The AMD card scores 129,499, which is 5.9% ahead of the RTX 5070 Mobile’s 122,238. While still a win for AMD, this closer margin suggests that in OpenCL compute workloads, the NVIDIA card’s architecture is relatively more competitive. The RTX 5070 Mobile’s tensor cores, which number 144, may be contributing to its compute showing, even in a test that does not specifically target them.

Looking at the broader database scores, the gap is even more pronounced. The RX 7900M’s average score of 97,487 is over three times higher than the RTX 5070 Mobile’s 29,928. This average includes a wider set of benchmarks, and it confirms that the RX 7900M is in a completely different performance league. When comparing the RX 7900M to its own rivals, it sits between the NVIDIA Quadro RTX 6000, which it trails by 4.3%, and the AMD Radeon Instinct MI60, which it leads by 5.4%. Meanwhile, the RTX 5070 Mobile trades blows with older high-end cards like the RTX 2080 Ti, leading it by 0.5%, and the AMD Radeon RX 6800, which leads it by 0.6%. This shows that the RTX 5070 Mobile is positioned as a replacement for previous-generation high-end parts, while the RX 7900M is competing with professional workstation-class GPUs.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 7900M has a significantly higher average benchmark score of 97,487, compared to the 29,928 average of the NVIDIA GeForce RTX 5070 Mobile.

Q: How much faster is the AMD GPU in the Geekbench Vulkan test?

A: The AMD Radeon RX 7900M scores 158,760 in the Geekbench Vulkan test, which is 35.7% higher than the NVIDIA GeForce RTX 5070 Mobile’s score of 116,960.

Q: What is the power consumption difference between the two cards?

A: The AMD Radeon RX 7900M has a TDP of 180 W, while the NVIDIA GeForce RTX 5070 Mobile has a TDP of just 50 W, making the NVIDIA part significantly more power-efficient.

Q: What are the memory specifications for each card?

A: The AMD Radeon RX 7900M features 16 GB of GDDR6 memory on a 256-bit bus with 576.0 GB/s of bandwidth, while the NVIDIA GeForce RTX 5070 Mobile has 8 GB of GDDR7 memory on a 128-bit bus with 384.0 GB/s of bandwidth.

Q: Which GPU uses the PCIe 5.0 interface?

A: The NVIDIA GeForce RTX 5070 Mobile uses a PCIe 5.0 x16 interface, whereas the AMD Radeon RX 7900M uses a PCIe 4.0 x16 interface.

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

A: The AMD Radeon RX 7900M is 0.4% ahead of the AMD Radeon Pro VII and 4.3% behind the NVIDIA Quadro RTX 6000. The NVIDIA GeForce RTX 5070 Mobile is 0.1% behind the RTX 3070 Ti and 0.5% ahead of the RTX 2080 Ti.

Architecture Differences

The two GPUs are built on fundamentally different architectures and scales. The AMD Radeon RX 7900M uses the Navi 31 chip, based on the RDNA 3.0 architecture, with a codename of Plum Bonito. It is a massive die, measuring 529 mm², and is fabricated on a 5 nm process at TSMC. This large chip houses 57,700 million transistors, resulting in a transistor density of 109.1 million per mm². The sheer size of this chip is the primary reason for its high performance and its high 180 W TDP.

In contrast, the NVIDIA GeForce RTX 5070 Mobile uses the GB206 chip, based on the Blackwell 2.0 architecture. This is a much smaller die, measuring just 181 mm², also fabricated on a 5 nm process at TSMC. It contains 21,900 million transistors, giving it a higher transistor density of 121.0 million per mm². This smaller, denser chip is far more efficient, with a TDP of just 50 W.

The memory subsystems are also very different. The RX 7900M uses 16 GB of GDDR6 memory on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The RTX 5070 Mobile uses 8 GB of the newer GDDR7 memory, but on a much narrower 128-bit bus, resulting in 384.0 GB/s of bandwidth. Despite using an older memory type, the AMD card’s wider bus gives it a 50% advantage in bandwidth, which is critical for high-resolution gaming and compute tasks.

Core counts and features also differ significantly. Both GPUs have 4,608 shading units, but the RX 7900M has 288 texture mapping units and 192 ROPs, while the RTX 5070 Mobile has 144 TMUs and 48 ROPs. This gives the AMD card a massive advantage in pixel and texture fill rates: 401.3 GPixel/s and 601.9 GTexel/s, compared to 68.40 GPixel/s and 205.2 GTexel/s for the NVIDIA part. The AMD card also has 72 RT cores, while the NVIDIA card has 36 RT cores. However, the NVIDIA card includes 144 tensor cores, a feature that the AMD card does not have at all.

These architectural differences explain the performance gap. The RX 7900M’s raw throughput, as measured by its 38.52 TFLOPS of FP32 performance, is nearly three times the RTX 5070 Mobile’s 13.13 TFLOPS. The NVIDIA card’s FP16 performance is identical to its FP32 at 13.13 TFLOPS, indicating a 1:1 ratio, while the AMD card’s FP16 performance is 77.05 TFLOPS, a 2:1 ratio. The RTX 5070 Mobile supports the newer PCIe 5.0 interface, while the RX 7900M uses PCIe 4.0. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 7900M was released on 2023-10-18, while the RTX 5070 Mobile was released later, on 2025-04-14.