AMD Radeon RX 6550S vs NVIDIA GeForce RTX 5090 SE Comparison

FAQ

Q: What are the core specifications of the AMD Radeon RX 6550S?

A: The RX 6550S uses the Navi 24 chip based on RDNA 2.0 architecture, built on a 6 nm process at TSMC. It has 1,024 shading units, 64 TMUs, 32 ROPs, and 16 ray tracing cores. The GPU features 4 GB of GDDR6 memory on a 64-bit bus, delivering 128.0 GB/s of bandwidth.

Q: What are the core specifications of the NVIDIA GeForce RTX 5090 SE?

A: The RTX 5090 SE uses the GB202 chip based on Blackwell 2.0 architecture, built on a 5 nm process at TSMC. It has 14,080 shading units, 440 TMUs, 160 ROPs, 110 ray tracing cores, and 440 tensor cores. The GPU features 24 GB of GDDR7 memory on a 384-bit bus, delivering 1.34 TB/s of bandwidth.

Q: How do the two GPUs differ in power requirements?

A: The RX 6550S has a TDP of 50 W and uses no power connectors, functioning as an integrated graphics package (IGP). The RTX 5090 SE has a TDP of 500 W and requires a single 16-pin power connector, with a suggested PSU of 900 W.

Q: What is the transistor count and die size for each GPU?

A: The RX 6550S contains 5,400 million transistors on a 107 mm² die, resulting in a transistor density of 50.5M per mm². The RTX 5090 SE contains 92,200 million transistors on a 750 mm² die, resulting in a transistor density of 122.9M per mm².

Q: What is the release date for each product?

A: The AMD Radeon RX 6550S was released on 2023-01-03. The NVIDIA GeForce RTX 5090 SE has a release date of 2025-12-31.

Q: What display outputs does each GPU provide?

A: The RX 6550S has display outputs that are portable device dependent, meaning they vary by the laptop or portable system it is integrated into. The RTX 5090 SE provides 1x HDMI 2.1b and 3x DisplayPort 2.1b outputs.

Where Each One Wins

The AMD Radeon RX 6550S is designed for a completely different segment than the NVIDIA GeForce RTX 5090 SE. The RX 6550S operates at a 50 W TDP with no power connectors, making it suitable for thin portable devices where power draw is constrained. Its base clock runs at 2000 MHz and boost clock at 2400 MHz, which are higher than the RTX 5090 SE's base clock of 1740 MHz and boost clock of 2377 MHz. The RX 6550S also uses a PCIe 4.0 x4 bus interface, which fits its low-power mobile positioning.

The RTX 5090 SE wins decisively in every raw performance category. Its FP32 compute reaches 66.94 TFLOPS, compared to 4.915 TFLOPS for the RX 6550S. The NVIDIA part also delivers 1.34 TB/s of memory bandwidth versus 128.0 GB/s, and its pixel rate of 380.3 GPixel/s dwarfs the 76.80 GPixel/s of the AMD part. The texture rate of 1,045.9 GTexel/s on the RTX 5090 SE is nearly seven times the 153.6 GTexel/s of the RX 6550S.

The use case split is clear from the data. The RX 6550S wins in power efficiency and integration flexibility, as an IGP with no external power requirement. The RTX 5090 SE wins in memory capacity, memory bandwidth, compute throughput, ray tracing hardware, and tensor core availability. The RTX 5090 SE has 440 tensor cores, while the RX 6550S has none listed, making the NVIDIA card the only option for workloads that rely on tensor operations.

Architecture Differences

The two GPUs come from different architectural generations and design philosophies. The AMD Radeon RX 6550S uses RDNA 2.0 architecture on the Navi 24 chip, produced on a 6 nm process at TSMC. It belongs to the Navi Mobile (RX 6000M) generation, with a predecessor of Polaris Mobile. The NVIDIA GeForce RTX 5090 SE uses Blackwell 2.0 architecture on the GB202 chip, produced on a 5 nm process at TSMC. It belongs to the GeForce 50 generation, with a predecessor of GeForce 40 and a successor of GeForce 60.

Transistor density differs substantially between the two. The RX 6550S packs 5,400 million transistors into a 107 mm² die, giving a density of 50.5M per mm². The RTX 5090 SE packs 92,200 million transistors into a 750 mm² die, giving a density of 122.9M per mm². The NVIDIA chip is not only physically larger but also denser, reflecting the more advanced 5 nm process.

The RTX 5090 SE includes 440 tensor cores, which are absent from the RX 6550S specification list. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature support is identical. The RTX 5090 SE uses a PCIe 5.0 x16 interface, while the RX 6550S uses a PCIe 4.0 x4 interface, reflecting the bandwidth requirements of each card.

Memory technology also differs. The RX 6550S uses GDDR6 memory at 2000 MHz with 16 Gbps effective speed. The RTX 5090 SE uses GDDR7 memory at 1750 MHz with 28 Gbps effective speed. The NVIDIA card's memory operates at a lower base clock but achieves far higher effective throughput due to the wider 384-bit bus and newer memory type.

Specification Differences

The physical dimensions differ significantly. The RX 6550S is an IGP with no listed length, height, or width, and no slot width specification beyond IGP. The RTX 5090 SE is a dual-slot card measuring 267 mm in length, 111 mm in height, and 40 mm in width.

Power delivery is another major differentiator. The RX 6550S has a 50 W TDP, no power connectors, and no suggested PSU. The RTX 5090 SE has a 500 W TDP, requires a 1x 16-pin power connector, and suggests a 900 W PSU.

The shading resources are vastly different. The RX 6550S has 1,024 shading units, 64 TMUs, 32 ROPs, and 16 ray tracing cores. The RTX 5090 SE has 14,080 shading units, 440 TMUs, 160 ROPs, 110 ray tracing cores, and 440 tensor cores. The NVIDIA card has roughly 13.75 times the shading units, 6.875 times the TMUs, 5 times the ROPs, and 6.875 times the ray tracing cores.

Clock speeds tell a different story. The RX 6550S has a base clock of 2000 MHz and a boost clock of 2400 MHz, with a game clock of 2170 MHz. The RTX 5090 SE has a base clock of 1740 MHz and a boost clock of 2377 MHz. The AMD part runs at higher clocks, but the NVIDIA part compensates with far more execution resources.

Memory capacity and bandwidth are heavily in favor of the RTX 5090 SE. The RX 6550S offers 4 GB of GDDR6 on a 64-bit bus with 128.0 GB/s bandwidth. The RTX 5090 SE offers 24 GB of GDDR7 on a 384-bit bus with 1.34 TB/s bandwidth. The NVIDIA card has six times the memory capacity and roughly 10.5 times the bandwidth.

Head-to-Head Benchmarks

The recorded data shows no direct benchmark scores for either GPU, and the nearest rival lists are empty. However, the specification-derived performance metrics provide a clear picture of the performance gap.

The largest single advantage for the RTX 5090 SE comes in FP32 compute. The NVIDIA card delivers 66.94 TFLOPS, which is 13.6 times the 4.915 TFLOPS of the RX 6550S. This translates directly to raw shader throughput in games and compute workloads.

Memory bandwidth is the second major differentiator. The RTX 5090 SE achieves 1.34 TB/s, which is approximately 10.5 times the 128.0 GB/s of the RX 6550S. This bandwidth advantage affects texture streaming, high-resolution rendering, and large dataset workloads.

The texture rate favors the RTX 5090 SE at 1,045.9 GTexel/s versus 153.6 GTexel/s for the RX 6550S. The pixel rate favors the NVIDIA card at 380.3 GPixel/s versus 76.80 GPixel/s. Both of these metrics confirm that the NVIDIA card maintains its dominance across different rendering stages.

The RTX 5090 SE also holds advantages in ray tracing resources with 110 ray tracing cores versus 16, and in tensor cores with 440 versus none. The FP16 performance shows a different ratio pattern: the RX 6550S reaches 9.830 TFLOPS using a 2:1 ratio, while the RTX 5090 SE reaches 66.94 TFLOPS using a 1:1 ratio. The NVIDIA card's FP16 throughput matches its FP32 throughput, whereas the AMD card halves its FP32 rate for FP16 work.

The RX 6550S does hold clock speed advantages. Its base clock of 2000 MHz is 260 MHz higher than the RTX 5090 SE's 1740 MHz base clock. Its boost clock of 2400 MHz is 23 MHz higher than the RTX 5090 SE's 2377 MHz boost clock. These higher clocks do not compensate for the massive resource deficit, but they do show that the AMD part is tuned for maximum frequency within its 50 W power envelope.

The Verdict

The data supports a straightforward selection based on workload and system constraints. The AMD Radeon RX 6550S is the appropriate choice for portable devices where power consumption is limited to 50 W, where no external power connectors are available, and where the IGP form factor is required. Its higher base and boost clocks show that it is optimized for efficiency within a tight power budget, and its 4 GB memory configuration suits lightweight mobile workloads.

The NVIDIA GeForce RTX 5090 SE is the appropriate choice for desktop systems with a 900 W PSU recommendation and space for a dual-slot, 267 mm card. It provides 24 GB of GDDR7 memory, 66.94 TFLOPS of FP32 compute, and 1.34 TB/s of memory bandwidth. Its 440 tensor cores make it the only option between these two for tensor-based workloads. The 500 W TDP and 1x 16-pin power connector requirement indicate a high-end desktop environment.

The performance gap between the two is not close. The RTX 5090 SE outperforms the RX 6550S by over an order of magnitude in FP32 compute, memory bandwidth, texture rate, and pixel rate. The RX 6550S counters only with higher clock speeds and lower power consumption. Neither card can substitute for the other in their respective target systems. The RTX 5090 SE carries a launch MSRP of 1,499 USD, while the RX 6550S has no listed launch MSRP, consistent with its integrated mobile positioning. The production status for both is listed as Active, and both support the same API set of DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.