AMD Radeon RX 6550S vs Lisuan Tech LX 7G100 Comparison

The Verdict

The recorded data places the AMD Radeon RX 6550S and the Lisuan Tech LX 7G100 in very different performance tiers, despite both using a 6 nm TSMC process. The RX 6550S is a low-power mobile-class part with a 50 W TDP, while the LX 7G100 is a dual-slot desktop board with a 225 W TDP. The raw compute figures show a decisive advantage for the Lisuan Tech part: its FP32 throughput of 24.58 TFLOPS is exactly 5 times the 4.915 TFLOPS of the AMD part. Similarly, the LX 7G100 delivers 49.15 TFLOPS FP16 versus 9.830 TFLOPS for the RX 6550S, a 4x difference. These are not marginal gaps; they represent entirely different market positions.

The RX 6550S belongs to the Radeon RX 6000 series, built on RDNA 2.0 with the Navi 24 chip. It targets portable devices where the 50 W power envelope and the integrated form factor (IGP slot width, no power connectors) are the defining constraints. Its 4 GB GDDR6 memory on a 64-bit bus yields 128.0 GB/s bandwidth, which is appropriate for its class. The LX 7G100, in contrast, uses the 7G106 chip with a "TrueGPU" architecture and offers 12 GB GDDR6 on a 192-bit bus, producing 432.0 GB/s bandwidth, 3.375 times the AMD part's bandwidth. The Lisuan Tech card also has 6144 shading units, 192 TMUs, and 96 ROPs, versus 1024, 64, and 32 respectively for the RX 6550S. In every compute resource category, the LX 7G100 holds a 6x advantage in shading units and TMUs and a 3x advantage in ROPs.

The verdict from the database is straightforward. The Lisuan Tech LX 7G100 is the substantially stronger performer across all measured specifications. It should be chosen for workloads that demand high throughput, large memory capacity, and wide memory bandwidth. The AMD Radeon RX 6550S is the appropriate choice for portable, low-power systems where the 50 W TDP and integrated design are mandatory. The RX 6550S uses PCIe 4.0 x4, while the LX 7G100 uses PCIe 4.0 x16, which further emphasizes the desktop-oriented nature of the latter. The data does not support any scenario where the RX 6550S outperforms the LX 7G100 in raw compute or memory performance. The choice is dictated by power and form factor constraints versus absolute performance.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Lisuan Tech LX 7G100 delivers 24.58 TFLOPS FP32, which is exactly 5 times the 4.915 TFLOPS of the AMD Radeon RX 6550S. The Lisuan part also reaches 49.15 TFLOPS FP16 versus 9.830 TFLOPS for the AMD part, a 4x advantage.

Q: How do the memory subsystems compare?

A: The LX 7G100 has 12 GB GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The RX 6550S has 4 GB GDDR6 on a 64-bit bus with 128.0 GB/s bandwidth. The Lisuan Tech card provides 3.375 times the memory bandwidth and 3 times the capacity.

Q: What are the power requirements for each card?

A: The RX 6550S has a 50 W TDP, uses no power connectors, and occupies an IGP slot width. The LX 7G100 has a 225 W TDP, requires one 8-pin power connector, a 550 W suggested PSU, and is a dual-slot card measuring 294 mm in length.

Q: Which GPU supports newer graphics APIs?

A: Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The RX 6550S supports Vulkan 1.4, while the LX 7G100 supports Vulkan 1.3. The AMD part has a newer Vulkan version, but the Lisuan part is otherwise API-equivalent.

Q: What are the pixel and texture rates for each?

A: The LX 7G100 achieves 192.0 GPixel/s pixel rate and 384.0 GTexel/s texture rate. The RX 6550S achieves 76.80 GPixel/s and 153.6 GTexel/s respectively. The Lisuan part is 2.5 times faster in pixel rate and 2.5 times faster in texture rate.

Q: What are the physical dimensions of each card?

A: The RX 6550S has no recorded dimensions and is described as "Portable Device Dependent" for display outputs. The LX 7G100 is 294 mm long, 120 mm high, and 49 mm wide, with 4x DisplayPort 1.4a outputs.

Architecture Differences

The two GPUs come from entirely different architectural lineages. The AMD Radeon RX 6550S uses the RDNA 2.0 architecture with the Navi 24 chip, belonging to the Navi Mobile generation within the RX 6000M series. It is manufactured on a 6 nm process at TSMC, with 5,400 million transistors on a 107 mm² die, giving a transistor density of 50.5M per mm². The architecture includes 16 ray tracing cores, a feature absent from the LX 7G100's specification sheet. The RX 6550S supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The Lisuan Tech LX 7G100 uses a "TrueGPU" architecture with the 7G106 chip, from the 7G100 generation. It is also fabricated on a 6 nm process at TSMC, but its transistor count, die size, and transistor density are not recorded in the database. The architecture does not list any ray tracing cores. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, one version behind the AMD part. The production status for both is Active.

The most significant architectural divergence is the compute resource allocation. The LX 7G100 has 6144 shading units, while the RX 6550S has 1024, a 6x difference. The TMU count is 192 versus 64, also a 6x difference, and the ROP count is 96 versus 32, a 3x difference. These ratios align with the FP32 throughput ratio of exactly 5x, indicating that the Lisuan architecture scales its execution resources far beyond what the AMD mobile part offers. The RX 6550S's ray tracing cores (16) are a unique feature in this comparison, but the absence of ray tracing data for the LX 7G100 prevents a direct comparison of that capability.

Both GPUs use GDDR6 memory, but the memory architecture differs substantially. The RX 6550S uses a 64-bit bus, while the LX 7G100 uses a 192-bit bus, a 3x wider interface. The memory clock is also higher on the Lisuan part: 2250 MHz with 18 Gbps effective transfer versus 2000 MHz with 16 Gbps effective for the AMD part. Combined, these factors produce the 432.0 GB/s versus 128.0 GB/s bandwidth gap. The RX 6550S's predecessor is noted as Polaris Mobile, while the LX 7G100 has no recorded predecessor. The RX 6550S was released in January 2023, and the LX 7G100 has a release date of June 2026, though the database records no successor for either.

Specification Differences

The two GPUs differ across nearly every recorded specification field. The process node is identical (6 nm, TSMC), but the transistor count and die size are only known for the RX 6550S: 5,400 million transistors on 107 mm². The LX 7G100's transistor data is unknown. Clock speeds differ significantly: the RX 6550S has a base clock of 2000 MHz, a boost clock of 2400 MHz, and a game clock of 2170 MHz, while the LX 7G100 has no recorded base, boost, or game clocks. The memory clock is higher on the LX 7G100 at 2250 MHz (18 Gbps effective) versus 2000 MHz (16 Gbps effective) for the AMD part.

Memory configuration: the LX 7G100 has 12 GB GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth; the RX 6550S has 4 GB GDDR6 on a 64-bit bus with 128.0 GB/s bandwidth. Compute units: the LX 7G100 has 6144 shading units, 192 TMUs, and 96 ROPs; the RX 6550S has 1024 shading units, 64 TMUs, and 32 ROPs. The RX 6550S has 16 ray tracing cores; the LX 7G100 has no recorded RT core count. Pixel rate is 192.0 GPixel/s for the LX 7G100 versus 76.80 GPixel/s for the RX 6550S. Texture rate is 384.0 GTexel/s versus 153.6 GTexel/s. FP32 is 24.58 TFLOPS versus 4.915 TFLOPS, and FP16 is 49.15 TFLOPS versus 9.830 TFLOPS, both at 2:1 ratio.

Power and physical specifications: the RX 6550S has a 50 W TDP, IGP slot width, no power connectors, and no suggested PSU. The LX 7G100 has a 225 W TDP, dual-slot width, one 8-pin power connector, and a 550 W suggested PSU. Dimensions are unrecorded for the RX 6550S; the LX 7G100 measures 294 mm by 120 mm by 49 mm. The bus interface is PCIe 4.0 x4 for the AMD part and PCIe 4.0 x16 for the Lisuan part. Display outputs are "Portable Device Dependent" for the RX 6550S versus 4x DisplayPort 1.4a for the LX 7G100. API support differs only in Vulkan version: 1.4 for AMD, 1.3 for Lisuan. The release dates are January 2023 for the RX 6550S and June 2026 for the LX 7G100. Both are Active in production status. Neither has a launch MSRP recorded in the database.

Head-to-Head Benchmarks

The database records no direct benchmark scores for either GPU, and the nearest rivals lists are empty. The comparison therefore rests entirely on the recorded specification-derived performance rates. The largest win for the Lisuan Tech LX 7G100 is in FP32 compute: 24.58 TFLOPS versus 4.915 TFLOPS, a 5x advantage. In FP16, the LX 7G100 achieves 49.15 TFLOPS versus 9.830 TFLOPS, a 4x advantage. These are the most decisive margins in the comparison.

Memory bandwidth shows the second-largest gap. The LX 7G100's 432.0 GB/s is 3.375 times the RX 6550S's 128.0 GB/s. This is driven by the combination of a 192-bit bus (3x wider than 64-bit) and a higher memory clock (2250 MHz versus 2000 MHz). The pixel rate of the LX 7G100 is 192.0 GPixel/s versus 76.80 GPixel/s, a 2.5x advantage. The texture rate is 384.0 GTexel/s versus 153.6 GTexel/s, also 2.5x.

The shading unit count gives the LX 7G100 a 6x advantage (6144 versus 1024), and the TMU count is also 6x higher (192 versus 64). The ROP count is 3x higher (96 versus 32). These resource ratios are internally consistent with the FP32 and texture rate deltas, though the exact FP32 ratio of 5x reflects the clock speed differences: the RX 6550S boosts to 2400 MHz, while the LX 7G100 has no recorded clock, so the comparison is based on the final throughput figures rather than clock-for-clock.

The RX 6550S has no wins in any measured performance category. Its only advantages are architectural features: 16 ray tracing cores, a newer Vulkan version (1.4 versus 1.3), a lower TDP (50 W versus 225 W), and an earlier release date (January 2023 versus June 2026). The power consumption difference is substantial: the RX 6550S operates at 50 W, less than a quarter of the LX 7G100's 225 W. This makes the AMD part suitable for battery-powered portable devices, whereas the Lisuan card requires a 550 W suggested PSU and a dual-slot chassis.

The data indicates that the two GPUs do not compete in the same segment. The LX 7G100's 12 GB memory capacity is 3 times the RX 6550S's 4 GB, and the 192-bit bus provides the bandwidth needed for high-resolution textures and large datasets. The RX 6550S's 64-bit bus and 4 GB capacity align with its low-power mobile positioning. The FP32 throughput ratio of 5x is the single strongest indicator of the performance gap, followed closely by the memory bandwidth ratio of 3.375x. In every recorded performance metric, the Lisuan Tech LX 7G100 leads by a factor of at least 2.5x, and in compute throughput by 4x to 5x. The AMD part's ray tracing cores and Vulkan 1.4 support are the only feature-level distinctions in its favor, but these do not offset the raw performance deficits.