AMD Radeon RX 6550S vs NVIDIA H20 NVL16 Comparison

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark results for the AMD Radeon RX 6550S and the NVIDIA H20 NVL16. Both entries show an average benchmark score of zero, and the win counters for each side are likewise zero. This is not a case of one part dominating the other in measured workloads, it is a case where the two products have never been evaluated side by side in the available records.

The absence of benchmark data is itself informative. These two accelerators occupy opposite ends of the hardware spectrum, so a direct performance comparison would require workloads that are meaningful to both. The RX 6550S is a mobile integrated-class part aimed at thin-and-light laptops, while the H20 NVL16 is a server accelerator designed for datacenter racks. The data shows no overlap in their intended application spaces, which explains why no comparative benchmark entries exist.

Both products sit at the 50th percentile against all GPUs in the database. That percentile is a placeholder value assigned when no benchmark scores are recorded, so it does not indicate parity in actual performance. The percentile field simply reflects the lack of measurement data for both items, not a meaningful equivalence.

Architecture Differences

The architectural gap between these two parts is substantial. The AMD Radeon RX 6550S uses the Navi 24 chip built on RDNA 2.0 architecture, manufactured on a 6 nm process at TSMC. It belongs to the Navi Mobile generation, specifically the RX 6000M series, and was released on January 3, 2023. The NVIDIA H20 NVL16 uses the GH100 chip built on Hopper architecture, manufactured on a 5 nm process at TSMC. It belongs to the Server Hopper generation and was released on September 1, 2025.

Transistor counts differ by an order of magnitude. The RX 6550S packs 5,400 million transistors on a 107 mm² die, giving a transistor density of 50.5 million per square millimeter. The H20 NVL16 packs 80,000 million transistors on an 814 mm² die, giving a transistor density of 98.3 million per square millimeter. The H20 NVL16 therefore has roughly 15 times as many transistors and a die that is about 7.6 times larger, while also achieving nearly double the transistor density.

The compute resources are equally lopsided. The RX 6550S has 1,024 shading units, 64 texture mapping units, 32 raster output units, and 16 ray tracing cores. The H20 NVL16 has 9,984 shading units, 312 texture mapping units, and 24 raster output units. The H20 NVL16 has no dedicated ray tracing cores listed, but it carries 312 tensor cores, which the RX 6550S lacks entirely.

Clock speeds tell a different story. The RX 6550S runs at a 2000 MHz base clock and boosts to 2400 MHz, with a game clock of 2170 MHz. The H20 NVL16 runs at a lower 1830 MHz base and boosts to 1980 MHz. The RX 6550S has the higher clock frequencies, but the H20 NVL16 compensates with vastly more execution units.

Memory architecture is completely different. The RX 6550S uses 4 GB of GDDR6 on a 64-bit bus with 128.0 GB/s of bandwidth and a memory clock of 2000 MHz, which translates to 16 Gbps effective. The H20 NVL16 uses 96 GB of HBM3 on a 6144-bit bus with 4.03 TB/s of bandwidth and a memory clock of 1313 MHz, which translates to 5.3 Gbps effective. The H20 NVL16 offers 24 times the memory capacity and over 31 times the bandwidth.

The process node difference is minimal in absolute terms, 6 nm versus 5 nm, but the density improvement is significant due to the larger die and more advanced node. The resulting compute throughput is starkly different. The RX 6550S delivers 4.915 TFLOPS of FP32 performance and 9.830 TFLOPS of FP16 with 2:1 ratio. The H20 NVL16 delivers 39.54 TFLOPS of FP32 and 79.07 TFLOPS of FP16 with 2:1 ratio. That is roughly 8 times the FP32 throughput and 8 times the FP16 throughput for the NVIDIA part.

FAQ

Q: Which GPU has higher clock speeds?

A: The AMD Radeon RX 6550S runs at 2000 MHz base and 2400 MHz boost, while the NVIDIA H20 NVL16 runs at 1830 MHz base and 1980 MHz boost. The AMD part has the higher clocks on both counts.

Q: How do the memory capacities compare?

A: The RX 6550S has 4 GB of GDDR6, while the H20 NVL16 has 96 GB of HBM3. The NVIDIA part offers 24 times the memory capacity and uses a much wider 6144-bit bus versus the 64-bit bus on the AMD part.

Q: Which GPU supports DirectX and Vulkan?

A: The RX 6550S supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The H20 NVL16 lists N/A for DirectX, OpenGL, and Vulkan, as it is a server accelerator without graphics APIs.

Q: What are the power consumption figures?

A: The RX 6550S has a TDP of 50 W and uses no power connectors, as it is an integrated graphics processor (IGP). The H20 NVL16 has a TDP of 400 W and requires a suggested power supply of 800 W.

Q: Which product has tensor cores?

A: The H20 NVL16 has 312 tensor cores. The RX 6550S has no tensor cores listed, but it does have 16 ray tracing cores, which the H20 NVL16 does not list.

Q: What are the release dates?

A: The RX 6550S was released on January 3, 2023. The H20 NVL16 was released on September 1, 2025.

Specification Differences

The following fields differ between the two products:

• Process Node: 6 nm (RX 6550S) versus 5 nm (H20 NVL16)
• Transistors: 5,400 million versus 80,000 million
• Die Size: 107 mm² versus 814 mm²
• Transistor Density: 50.5M / mm² versus 98.3M / mm²
• Base Clock: 2000 MHz versus 1830 MHz
• Boost Clock: 2400 MHz versus 1980 MHz
• Memory Clock: 2000 MHz (16 Gbps effective) versus 1313 MHz (5.3 Gbps effective)
• Memory Size: 4 GB versus 96 GB
• Memory Type: GDDR6 versus HBM3
• Memory Bus Width: 64 bit versus 6144 bit
• Memory Bandwidth: 128.0 GB/s versus 4.03 TB/s
• Shading Units: 1,024 versus 9,984
• TMUs: 64 versus 312
• ROPs: 32 versus 24
• RT Cores: 16 versus none listed
• Tensor Cores: none versus 312
• Pixel Rate: 76.80 GPixel/s versus 47.52 GPixel/s
• Texture Rate: 153.6 GTexel/s versus 617.8 GTexel/s
• FP32 Performance: 4.915 TFLOPS versus 39.54 TFLOPS
• FP16 Performance: 9.830 TFLOPS versus 79.07 TFLOPS
• TDP: 50 W versus 400 W
• Slot Width: IGP versus SXM Module
• Power Connectors: None versus not listed
• Suggested PSU: not listed versus 800 W
• Bus Interface: PCIe 4.0 x4 versus PCIe 5.0 x16
• Display Outputs: Portable Device Dependent versus No outputs
• DirectX Support: 12 Ultimate (12_2) versus N/A
• OpenGL Support: 4.6 versus N/A
• Vulkan Support: 1.4 versus N/A
• Release Date: January 3, 2023 versus September 1, 2025
• Predecessor: Polaris Mobile versus Server Ada
• Successor: none versus Server Blackwell
• Generation: Navi Mobile (RX 6000M) versus Server Hopper (Hxx)

The Verdict

The data shows two products with no common ground. The AMD Radeon RX 6550S is a 50 W integrated graphics processor for mobile devices. It uses 4 GB of GDDR6 memory, has 1,024 shading units, runs at up to 2400 MHz, and delivers 4.915 TFLOPS of FP32 compute. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and its display outputs are described as portable device dependent. The 6 nm Navi 24 die is small at 107 mm² and is currently in active production.

The NVIDIA H20 NVL16 is a 400 W server accelerator module. It uses 96 GB of HBM3 memory on a 6144-bit bus, has 9,984 shading units plus 312 tensor cores, runs at up to 1980 MHz, and delivers 39.54 TFLOPS of FP32 compute. It has no display outputs and no graphics API support. The 5 nm GH100 die is massive at 814 mm² and is also in active production.

The H20 NVL16 is the clear winner in raw compute throughput, memory bandwidth, and capacity. It delivers approximately 8 times the FP32 performance, over 31 times the memory bandwidth, and 24 times the memory capacity of the RX 6550S. It also uses a newer 5 nm process and a faster PCIe 5.0 x16 interface. The RX 6550S counters with a lower power draw, higher clock speeds, a smaller die, and support for graphics APIs that the server part completely lacks.

These are not competing products. The RX 6550S is for portable devices that need basic graphics output and modest compute. The H20 NVL16 is for server environments that need massive parallel throughput and enormous memory pools, with no display capability whatsoever. A buyer choosing between them would be selecting a category of hardware, not comparing two similar parts.

Where Each One Wins

AMD Radeon RX 6550S wins on:

• Clock speed: 2400 MHz boost versus 1980 MHz boost
• Pixel fill rate: 76.80 GPixel/s versus 47.52 GPixel/s, despite having fewer ROPs
• Graphics API support: Full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 versus none
• Display output: Portable device dependent versus no outputs at all
• Power efficiency: 50 W TDP versus 400 W TDP
• Physical footprint: IGP slot width versus SXM Module, meaning it can be built into a laptop
• Bus interface flexibility: PCIe 4.0 x4 works in standard mobile platforms
• Ray tracing: 16 dedicated RT cores versus none listed

NVIDIA H20 NVL16 wins on:

• Compute throughput: 39.54 TFLOPS FP32 versus 4.915 TFLOPS, roughly 8 times higher
• FP16 performance: 79.07 TFLOPS versus 9.830 TFLOPS, roughly 8 times higher
• Memory capacity: 96 GB versus 4 GB, 24 times larger
• Memory bandwidth: 4.03 TB/s versus 128.0 GB/s, over 31 times higher
• Memory bus width: 6144 bit versus 64 bit
• Texture fill rate: 617.8 GTexel/s versus 153.6 GTexel/s, roughly 4 times higher
• Tensor cores: 312 dedicated tensor cores versus none
• Transistor count: 80,000 million versus 5,400 million
• Die size: 814 mm² versus 107 mm²
• Process node: 5 nm versus 6 nm
• Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x4
• Shading units: 9,984 versus 1,024
• Texture mapping units: 312 versus 64
• Successor path: Has a listed successor (Server Blackwell), while the RX 6550S has none

The RX 6550S is the only one of the two that can render graphics to a display or run client-side graphical applications. The H20 NVL16 is the only one with tensor cores and the memory capacity for large-scale AI and datacenter workloads. The recorded data confirms that each part wins precisely where the other has no presence.