AMD Radeon RX 7650 GRE vs NVIDIA GeForce RTX 5080 Mobile Comparison

The AMD Radeon RX 7650 GRE and the NVIDIA GeForce RTX 5080 Mobile occupy very different corners of the GPU landscape, and the benchmark data reflects that split clearly. In the two directly comparable tests, the NVIDIA part wins decisively, but the AMD card holds its own in overall percentile rankings, making the choice heavily dependent on the intended use case.

Where Each One Wins

The data shows a clean sweep for the NVIDIA GeForce RTX 5080 Mobile in direct head-to-head testing. It wins both available benchmark comparisons, with the 3DMark Steel Nomad DX12 result going 4952 versus 2336 for the AMD Radeon RX 7650 GRE, a delta of -52.8% from the AMD card’s perspective. The OpenCL result similarly favors NVIDIA at 166986 against 83109, a -50.2% difference.

However, the AMD card wins on the broader percentile stage. The RX 7650 GRE sits at the 83rd percentile of all GPUs, while the RTX 5080 Mobile ranks at the 81st percentile. This apparent contradiction is explained by the average benchmark scores: the AMD part averages 42723, while the NVIDIA part averages 38349. The RTX 5080 Mobile’s average is dragged down by a wide spread in its benchmark results, including a Passmark G3D score of 27711 and a Passmark GPU Compute score of 12134, alongside its much higher 3DMark and Geekbench numbers.

This suggests the AMD card delivers more consistent performance across a wider variety of workloads, while the NVIDIA part is specialized for the specific DirectX 12 and compute tasks where it shines. The RX 7650 GRE also has a higher pixel rate at 172.5 GPixel/s versus 144.0 GPixel/s for the RTX 5080 Mobile, indicating a potential edge in fill-rate-bound scenarios.

Architecture Differences

The two GPUs are built on fundamentally different architectures and process nodes. The AMD Radeon RX 7650 GRE uses the Navi 33 chip on the RDNA 3.0 architecture, fabricated on a 6 nm process at TSMC. The NVIDIA GeForce RTX 5080 Mobile uses the GB203 chip on the Blackwell 2.0 architecture, fabricated on a 5 nm process, also at TSMC. The die sizes differ substantially, with the AMD chip at 204 mm² and the NVIDIA chip at 378 mm².

Transistor counts reveal a major gap in complexity. The RTX 5080 Mobile packs 45,600 million transistors, more than three times the 13,300 million in the RX 7650 GRE. This translates to a much higher transistor density of 120.6M per mm² for NVIDIA versus 65.2M per mm² for AMD.

The memory subsystems are also entirely different. The RX 7650 GRE uses 8 GB of GDDR6 on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The RTX 5080 Mobile uses 16 GB of GDDR7 on a 256-bit bus, delivering 896.0 GB/s. The NVIDIA part’s memory clock is listed at 1750 MHz with 28 Gbps effective, while the AMD part runs at 2250 MHz with 18 Gbps effective. The NVIDIA card’s bandwidth advantage is over threefold.

Both support the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD card has 32 ray tracing cores and no tensor cores, while the NVIDIA card has 60 ray tracing cores and 240 tensor cores. The PCIe interface differs as well, with the AMD part using PCIe 4.0 x8 and the NVIDIA part using PCIe 5.0 x16.

Head-to-Head Benchmarks

The 3DMark Steel Nomad DX12 test is the most significant single comparison. The RTX 5080 Mobile scores 4952, more than double the RX 7650 GRE’s 2336. The delta of -52.8% means the AMD card delivers less than half the performance in this modern DirectX 12 workload. This is a massive gap, suggesting the NVIDIA architecture handles the geometry and ray tracing demands of Steel Nomad far more efficiently.

The Geekbench OpenCL test shows a similar pattern, though slightly less extreme. The RTX 5080 Mobile scores 166986 against 83109 for the AMD card, a -50.2% delta. This indicates the NVIDIA part also has a substantial advantage in general-purpose compute tasks, likely driven by its 7680 shading units versus 2048 for the AMD card, and its 240 tensor cores.

The NVIDIA card also has additional benchmark results that are not directly comparable to the AMD part. Its Passmark G3D score is 27711, and its Passmark GPU Compute score is 12134. The AMD card’s percentile rank of 83 versus the NVIDIA’s 81 suggests that when averaged across all these varied workloads, the AMD part is more consistently competitive, despite losing the two direct head-to-head tests.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 7650 GRE has an average benchmark score of 42723, while the NVIDIA GeForce RTX 5080 Mobile averages 38349.

Q: How much faster is the RTX 5080 Mobile in 3DMark Steel Nomad?

A: The RTX 5080 Mobile scores 4952 in 3DMark Steel Nomad DX12, which is 52.8% higher than the RX 7650 GRE’s score of 2336.

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

A: The NVIDIA card has 896.0 GB/s of bandwidth using 16 GB of GDDR7 on a 256-bit bus, compared to the AMD card’s 288.0 GB/s using 8 GB of GDDR6 on a 128-bit bus.

Q: Which GPU has a higher pixel fill rate?

A: The AMD Radeon RX 7650 GRE has a higher pixel rate of 172.5 GPixel/s, compared to the NVIDIA GeForce RTX 5080 Mobile’s 144.0 GPixel/s.

Q: Do both GPUs support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the process node difference between the two chips?

A: The AMD Navi 33 chip is fabricated on a 6 nm process, while the NVIDIA GB203 chip uses a 5 nm process, both at TSMC.

Specification Differences

The two GPUs differ in nearly every measurable specification. The process node is 6 nm for AMD versus 5 nm for NVIDIA. The AMD chip has 13,300 million transistors on a 204 mm² die, while the NVIDIA chip has 45,600 million transistors on a 378 mm² die. Clock speeds show a different design philosophy: the AMD base clock is 1720 MHz and boost is 2695 MHz, while the NVIDIA base clock is 975 MHz and boost is 1500 MHz.

Memory capacity is 8 GB versus 16 GB, with GDDR6 versus GDDR7, on 128-bit versus 256-bit buses. Bandwidth is 288.0 GB/s versus 896.0 GB/s. The shading unit count is 2048 versus 7680, TMUs are 128 versus 240, and ROPs are 64 versus 96. Ray tracing cores number 32 versus 60, and the NVIDIA card adds 240 tensor cores where the AMD card has none.

The texture rate is 345.0 GTexel/s for AMD versus 360.0 GTexel/s for NVIDIA, while the pixel rate is 172.5 GPixel/s versus 144.0 GPixel/s. The FP32 compute is 22.08 TFLOPS versus 23.04 TFLOPS. The thermal design power is 170 W for AMD versus 80 W for NVIDIA. The AMD card uses a dual-slot form factor with a single 8-pin power connector and a 450 W suggested PSU, while the NVIDIA part is an IGP with no power connectors. The bus interface is PCIe 4.0 x8 versus PCIe 5.0 x16. The AMD card measures 204 mm in length and 115 mm in height, while the NVIDIA card has no listed dimensions.

The Verdict

The data points to a clear performance hierarchy in direct comparisons. The NVIDIA GeForce RTX 5080 Mobile is the outright winner in both head-to-head benchmarks, with a 52.8% lead in 3DMark Steel Nomad and a 50.2% lead in Geekbench OpenCL. Its 16 GB of GDDR7 memory on a 256-bit bus provides 896.0 GB/s of bandwidth, a massive advantage for high-resolution textures and compute-heavy workloads. For anyone prioritizing raw DirectX 12 gaming performance or general compute, the RTX 5080 Mobile is the obvious choice.

However, the AMD Radeon RX 7650 GRE is not without merit. Its higher percentile rank of 83 versus 81, combined with a higher average benchmark score of 42723 versus 38349, indicates it performs more consistently across a broader range of applications. Its higher pixel rate of 172.5 GPixel/s versus 144.0 GPixel/s suggests it may handle certain fill-rate-limited scenarios better. The AMD card also has a much higher boost clock at 2695 MHz versus 1500 MHz, and its 170 W TDP, while higher, comes with a dedicated dual-slot cooler and a discrete 8-pin power connector.

The choice ultimately depends on whether the workload is dominated by the specific tests where NVIDIA wins big, or whether a more balanced profile is needed. The RTX 5080 Mobile is a specialist that excels in modern DirectX 12 and compute, while the RX 7650 GRE is a generalist that avoids the extreme lows seen in the NVIDIA card’s Passmark results. The RTX 5080 Mobile is the performance pick, but the RX 7650 GRE is the more consistent all-rounder according to the aggregate data.