AMD Radeon RX 6550M vs NVIDIA GeForce RTX 4080 Mobile Comparison

The AMD Radeon RX 6550M and the NVIDIA GeForce RTX 4080 Mobile occupy very different positions in the laptop GPU landscape, despite both being active mobile parts. The recorded data shows a stark performance gap, with the NVIDIA part dominating in every benchmark category measured, while the AMD chip aims for efficiency and portability. This analysis breaks down the architectural disparities, benchmark results, and the specific use cases where each GPU makes sense based solely on the database figures.

Where Each One Wins

The benchmark results in the database are unambiguous: the NVIDIA GeForce RTX 4080 Mobile wins every single head-to-head test. Out of the recorded wins, the NVIDIA card takes 2 victories, while the AMD Radeon RX 6550M records 0 wins. This is not a close contest by any metric. In the Geekbench OpenCL test, the RTX 4080 Mobile scores 159,575 against the RX 6550M's 42,536, a delta of 73.3% in favor of NVIDIA. The Vulkan test shows a similar story, with the RTX 4080 Mobile hitting 145,807 versus 50,867, a 65.1% advantage.

However, the AMD part does have a distinct positioning. Its average benchmark score of 46,702 places it in the 85th percentile of all GPUs, which is actually higher than the RTX 4080 Mobile's 81st percentile, despite the latter's far higher absolute scores. This suggests the RX 6550M is surrounded by a cluster of similarly performing parts, while the RTX 4080 Mobile has a wider spread of scores pulling its percentile down. The RX 6550M's nearest rivals include the Intel Arc A530M (0.2% ahead) and the AMD Radeon RX 5600M (0.2% ahead), indicating it sits in a competitive mid-range segment. The RTX 4080 Mobile, meanwhile, is within 1.3% of the desktop RTX 4070 and just 0.6% behind the newer RTX 5080 Mobile.

Where the RX 6550M "wins" is in its power envelope and physical profile. With an 80 W TDP versus 110 W for the RTX 4080 Mobile, and a die size of just 107 mm² compared to 294 mm², the AMD chip is built for thinner, lighter systems. The data does not show it winning any performance crown, but its efficiency-oriented design is the clear takeaway.

Architecture Differences

The architectural divide between these two GPUs is substantial. The AMD Radeon RX 6550M is built on the RDNA 2.0 architecture using the Navi 24 chip, manufactured on a 6 nm process at TSMC. It packs 5,400 million transistors into a 107 mm² die, yielding a transistor density of 50.5 million per mm². The NVIDIA GeForce RTX 4080 Mobile uses the Ada Lovelace architecture with the AD104 chip, built on a 5 nm process, also at TSMC. This part houses 35,800 million transistors across a 294 mm² die, for a much higher density of 121.8 million per mm².

The compute resources differ massively. The RX 6550M has 1,024 shading units, 64 texture mapping units, 32 ROPs, and 16 ray tracing cores. It has no tensor cores. The RTX 4080 Mobile, by contrast, has 7,424 shading units, 232 TMUs, 80 ROPs, 58 ray tracing cores, and 232 tensor cores. This is a 7.25x advantage in shading units and a 3.6x advantage in ray tracing cores. The FP32 compute rating tells the story: 5.816 TFLOPS for AMD versus 24.72 TFLOPS for NVIDIA, a 4.25x gap. Interestingly, the AMD part's FP16 rating is 11.63 TFLOPS (2:1 ratio), while NVIDIA's is 24.72 TFLOPS (1:1 ratio), meaning the RTX 4080 Mobile does not halve its throughput on FP16 workloads.

Memory configurations are also in different leagues. The RX 6550M has 4 GB of GDDR6 on a 64-bit bus, delivering 144.0 GB/s of bandwidth. The RTX 4080 Mobile has 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s. That is three times the capacity and three times the bandwidth. Both run their memory at 2250 MHz (18 Gbps effective). The pixel rate is 90.88 GPixel/s for AMD versus 133.2 GPixel/s for NVIDIA, and the texture rate is 181.8 GTexel/s versus 386.3 GTexel/s.

The bus interface differs too: the RX 6550M uses PCIe 4.0 x4, while the RTX 4080 Mobile uses PCIe 4.0 x16. Both support DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. Clock speeds show an interesting inversion: the AMD chip has a higher base clock at 2000 MHz versus 1290 MHz, and a higher boost at 2840 MHz versus 1665 MHz. The AMD part also lists a game clock of 2560 MHz, a figure NVIDIA does not provide. Yet despite the clock advantage, the NVIDIA part's sheer scale of compute units overwhelms the AMD chip.

The Verdict

The data is clear for anyone prioritizing raw performance: the NVIDIA GeForce RTX 4080 Mobile is the choice. It wins every recorded benchmark, with a 73.3% lead in OpenCL and a 65.1% lead in Vulkan. For tasks like high-resolution gaming, 3D rendering, or GPU compute, the RTX 4080 Mobile's 24.72 TFLOPS of FP32 performance, 12 GB of VRAM, and 432.0 GB/s of bandwidth put it in a completely different class. The presence of 232 tensor cores also gives it a feature set the AMD part lacks entirely.

The AMD Radeon RX 6550M, however, is not without merit. Its 80 W TDP is 27% lower than the RTX 4080 Mobile's 110 W, and its smaller die and 4 GB memory footprint make it better suited for compact, power-efficient laptops. Its 85th percentile ranking versus all GPUs, which beats the RTX 4080 Mobile's 81st, indicates that within its performance class, it is a well-positioned part. For light gaming, everyday productivity, or systems where battery life and thermals are paramount, the RX 6550M is a sensible pick. The database shows it is essentially tied with the Intel Arc A530M and AMD Radeon RX 5600M, so buyers should expect a specific, modest performance tier.

Choose the RTX 4080 Mobile if you need maximum frame rates or compute throughput. Choose the RX 6550M if you need a low-power solution that still lands in the top 15% of all GPUs.

FAQ

Q: Which GPU has better Vulkan performance?

A: The NVIDIA GeForce RTX 4080 Mobile scores 145,807 in Geekbench Vulkan, which is 65.1% higher than the AMD Radeon RX 6550M's 50,867.

Q: How much VRAM does each GPU have?

A: The AMD Radeon RX 6550M has 4 GB of GDDR6, while the NVIDIA GeForce RTX 4080 Mobile has 12 GB of GDDR6.

Q: What is the power consumption difference?

A: The RX 6550M has a TDP of 80 W, while the RTX 4080 Mobile has a TDP of 110 W, making the AMD part more power-efficient.

Q: Which GPU has more ray tracing cores?

A: The NVIDIA GeForce RTX 4080 Mobile has 58 ray tracing cores, compared to 16 on the AMD Radeon RX 6550M.

Q: Are these GPUs comparable in overall performance?

A: No. The RTX 4080 Mobile wins all recorded benchmarks, with a 73.3% lead in OpenCL and a 65.1% lead in Vulkan. The RX 6550M is instead comparable to parts like the Intel Arc A530M and AMD Radeon RX 5600M.

Q: What is the memory bandwidth difference?

A: The RTX 4080 Mobile has 432.0 GB/s of bandwidth, exactly three times the 144.0 GB/s of the RX 6550M.

Head-to-Head Benchmarks

The database records two head-to-head benchmark tests, and both are decisive wins for the NVIDIA GeForce RTX 4080 Mobile.

In Geekbench OpenCL, the RTX 4080 Mobile posts 159,575 points. The AMD Radeon RX 6550M manages 42,536 points. This is a delta of 73.3% in favor of NVIDIA. To put that in perspective, the RTX 4080 Mobile's score is 3.75 times higher. This test stresses general-purpose compute, and the NVIDIA part's 7,424 shading units versus 1,024, along with its 24.72 TFLOPS of FP32 performance versus 5.816 TFLOPS, explain the magnitude of the gap. The RX 6550M's higher boost clock of 2840 MHz versus 1665 MHz cannot compensate for the 7x shortfall in shading units.

In Geekbench Vulkan, the results are closer in relative terms but still one-sided. The RTX 4080 Mobile scores 145,807, while the RX 6550M scores 50,867. The delta is 65.1% in favor of NVIDIA. This test is more graphics-oriented, and while the AMD part improves on its OpenCL showing, it remains far behind. The RX 6550M's 16 ray tracing cores and 32 ROPs are simply outmatched by the RTX 4080 Mobile's 58 ray tracing cores and 80 ROPs. The NVIDIA part also has a 3x memory bandwidth advantage, which matters in Vulkan workloads that often thrash the memory subsystem.

Looking at the broader benchmark picture, the RTX 4080 Mobile also has recorded PassMark scores, including a G3D score of 24,926 and a GPU compute score of 11,191. The RX 6550M does not have PassMark entries in the database, but its average benchmark score of 46,702 across its two tests is far below the RTX 4080 Mobile's average of 38,135 when considering all its tests. This discrepancy is explained by the RTX 4080 Mobile's low PassMark DirectX scores (e.g., 96 for DirectX 12, 157 for DirectX 10), which drag down its average despite the strong Geekbench and PassMark G3D results. The RX 6550M's average is pulled from only two strong Geekbench scores, so the two averages are not directly comparable.

The nearest rival data reinforces the separation. The RX 6550M's closest competitors are the Intel Arc A530M (0.2% ahead) and the AMD Radeon RX 5600M (0.2% ahead), both of which are older or lower-tier parts. The RTX 4080 Mobile's nearest rivals include the NVIDIA GeForce RTX 5080 Mobile (0.6% ahead) and the GeForce RTX 4070 (1.3% behind), showing it is competitive with the next generation. No benchmark in the database shows the AMD part closing the gap to NVIDIA, and the architectural disparity in shading units, memory, and tensor cores makes a comeback unlikely in any unrecorded test. The data is consistent: the RTX 4080 Mobile is the dominant part, and the RX 6550M is a modest, efficient alternative.