AMD Radeon RX 6550S vs AMD Ryzen Z2 Go GPU Comparison

Head-to-Head Benchmarks

The recorded data for the AMD Radeon RX 6550S and the AMD Ryzen Z2 Go GPU contains no direct benchmark scores, no head-to-head test results, and no wins for either side in the database. This means there is no measured performance delta to cite between these two parts. The absence of benchmark entries does not indicate parity; it simply reflects that the database has not yet recorded comparative test data for this pairing. Both products sit at the 50th percentile against all GPUs in the database, and both carry an average benchmark score of zero, which is a placeholder state rather than a measured result.

The lack of head-to-head measurements makes it impossible to say which part is faster in a specific application. The only quantifiable performance indicators available are derived from the internal specifications of each GPU. The Radeon RX 6550S delivers a peak FP32 throughput of 4.915 TFLOPS, while the Ryzen Z2 Go GPU delivers 4.147 TFLOPS. That difference gives the RX 6550S a mathematical advantage of roughly 18.5% in raw single-precision compute, but this is a theoretical ceiling, not a benchmark result. In texture throughput, the RX 6550S reaches 153.6 GTexel/s versus 129.6 GTexel/s for the Z2 Go GPU, a margin of about 18.5% as well. Pixel throughput favors the Z2 Go GPU, which records 86.40 GPixel/s compared to 76.80 GPixel/s for the RX 6550S, a difference of roughly 12.5% in favor of the Z2 Go part.

Memory bandwidth tells a different story. The RX 6550S uses a 64-bit bus with 4 GB of GDDR6 and achieves 128.0 GB/s. The Z2 Go GPU uses a 128-bit bus with 16 GB of LPDDR5 and achieves 102.4 GB/s. The RX 6550S has a 25% bandwidth advantage, while the Z2 Go GPU has a 4x capacity advantage. Neither of these figures is a benchmark score, but they are the only concrete performance-related numbers available in the database for this comparison.

Where Each One Wins

Because there are no recorded benchmark wins for either GPU, the use-case split must be inferred from the recorded specifications. The Radeon RX 6550S wins on raw compute density and memory bandwidth. Its 4.915 TFLOPS FP32 throughput, 153.6 GTexel/s texture rate, and 128.0 GB/s bandwidth position it as the stronger choice for workloads that depend heavily on shader math and texture sampling. The 1024 shading units and 64 texture mapping units give it 33% more shading units and 33% more TMUs than the Z2 Go GPU, which has 768 shading units and 48 TMUs. For applications that scale with shader count and texture fill, the RX 6550S has the structural advantage.

The Ryzen Z2 Go GPU wins on memory capacity, pixel throughput, and power efficiency. Its 16 GB of LPDDR5 memory is four times the capacity of the RX 6550S, which matters for workloads with large working sets that exceed 4 GB. Its 86.40 GPixel/s pixel rate is 12.5% higher than the RX 6550S, indicating an advantage in fill-rate-bound scenarios. The Z2 Go GPU also operates at a 28 W TDP versus 50 W for the RX 6550S, a 44% lower power envelope, which makes it the more efficient part per watt in the database's recorded specifications.

The RX 6550S has a higher boost clock at 2400 MHz versus 2700 MHz for the Z2 Go GPU, meaning the Z2 Go GPU actually boosts higher. However, the RX 6550S has a much higher base clock at 2000 MHz versus 800 MHz for the Z2 Go GPU. The RX 6550S also records a game clock of 2170 MHz, a field that is null for the Z2 Go GPU. These clock differences suggest the RX 6550S is designed for sustained operation at higher frequencies, while the Z2 Go GPU relies on a wide memory interface and large frame buffer to compensate for its lower base clock.

Architecture Differences

Both GPUs are built on the RDNA 2.0 architecture and both are manufactured by TSMC on a 6 nm process node. The RX 6550S uses the Navi 24 chip, which places it in the Navi Mobile (RX 6000M) generation. The Z2 Go GPU uses the Rembrandt+ chip and falls under the Console GPU (AMD) generation. The die sizes diverge significantly: the RX 6550S has a 107 mm² die with 5,400 million transistors, while the Z2 Go GPU has a 208 mm² die with 13,100 million transistors. The Z2 Go GPU packs 2.4 times the transistor count into roughly 1.9 times the die area, resulting in a higher transistor density of 63.0M per mm² compared to 50.5M per mm² for the RX 6550S.

Memory architecture differs substantially. The RX 6550S uses 4 GB of GDDR6 on a 64-bit bus with memory clocked at 2000 MHz (16 Gbps effective). The Z2 Go GPU uses 16 GB of LPDDR5 on a 128-bit bus with memory clocked at 800 MHz (6.4 Gbps effective). The RX 6550S achieves higher bandwidth despite the narrower bus because of the faster memory type and clock. The Z2 Go GPU relies on its wider bus and larger capacity to serve different workload demands.

The compute units differ as well. The RX 6550S has 1024 shading units, 64 TMUs, 32 ROPs, and 16 ray tracing cores. The Z2 Go GPU has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. The RX 6550S holds a 33% advantage in shading units, TMUs, and ray tracing cores. Both parts have 32 ROPs, so pixel output differences come from clock speeds rather than ROP count. The Z2 Go GPU compensates with a 12.5% higher pixel rate due to its higher boost clock.

API support is identical. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither part has tensor cores recorded in the database. The RX 6550S uses a PCIe 4.0 x4 bus interface, while the Z2 Go GPU has no bus interface recorded. The RX 6550S is an IGP with no power connectors and a slot width of IGP, while the Z2 Go GPU has no slot width recorded and lists 1x USB Type-C as its display output. The RX 6550S lists "Portable Device Dependent" for display outputs.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The Radeon RX 6550S records 4.915 TFLOPS FP32, compared to 4.147 TFLOPS for the Ryzen Z2 Go GPU, an advantage of roughly 18.5% for the RX 6550S.

Q: Which GPU has more memory capacity?

A: The Ryzen Z2 Go GPU has 16 GB of LPDDR5 memory, four times the 4 GB of GDDR6 found on the Radeon RX 6550S.

Q: Which GPU has higher memory bandwidth?

A: The Radeon RX 6550S achieves 128.0 GB/s over a 64-bit bus, while the Ryzen Z2 Go GPU achieves 102.4 GB/s over a 128-bit bus. The RX 6550S has a 25% bandwidth advantage.

Q: Which GPU is more power efficient?

A: The Ryzen Z2 Go GPU has a 28 W TDP, while the Radeon RX 6550S has a 50 W TDP. The Z2 Go GPU operates at 44% lower power draw.

Q: Do both GPUs support ray tracing?

A: Yes, both are RDNA 2.0 parts with ray tracing cores. The RX 6550S has 16 RT cores, while the Z2 Go GPU has 12 RT cores.

Q: Which GPU has a smaller die?

A: The Radeon RX 6550S has a 107 mm² die, compared to 208 mm² for the Ryzen Z2 Go GPU. The Z2 Go GPU has a higher transistor density at 63.0M per mm² versus 50.5M per mm².

Specification Differences

The two GPUs differ in the following recorded fields. The RX 6550S uses the Navi 24 chip, while the Z2 Go GPU uses Rembrandt+. Their generations differ: Navi Mobile (RX 6000M) versus Console GPU (AMD). Transistor count is 5,400 million versus 13,100 million, and die size is 107 mm² versus 208 mm². Transistor density is 50.5M per mm² versus 63.0M per mm².

Base clocks are 2000 MHz versus 800 MHz, boost clocks are 2400 MHz versus 2700 MHz, and game clock is 2170 MHz versus null. Memory size is 4 GB versus 16 GB, memory type is GDDR6 versus LPDDR5, bus width is 64 bit versus 128 bit, and bandwidth is 128.0 GB/s versus 102.4 GB/s. Shading units are 1024 versus 768, TMUs are 64 versus 48, and RT cores are 16 versus 12. ROPs are 32 on both.

Pixel rate is 76.80 GPixel/s versus 86.40 GPixel/s, texture rate is 153.6 GTexel/s versus 129.6 GTexel/s, FP32 is 4.915 TFLOPS versus 4.147 TFLOPS, and FP16 is 9.830 TFLOPS versus 8.294 TFLOPS. TDP is 50 W versus 28 W. The RX 6550S has a PCIe 4.0 x4 bus interface; the Z2 Go GPU has none recorded. Display outputs are "Portable Device Dependent" versus "1x USB Type-C". Release dates are 2023-01-03 for the RX 6550S and 2024-12-31 for the Z2 Go GPU. The RX 6550S lists Polaris Mobile as its predecessor; the Z2 Go GPU has none recorded. Neither part has a launch MSRP in the database.

The Verdict

The data supports a clear split based on workload priorities. The Radeon RX 6550S is the stronger compute part. It leads in FP32 throughput, texture rate, shading units, TMUs, ray tracing cores, and memory bandwidth. Its 4.915 TFLOPS and 153.6 GTexel/s are the highest recorded numbers in this comparison. It is built for shader-heavy and texture-heavy tasks where bandwidth and compute density matter more than capacity.

The Ryzen Z2 Go GPU is the stronger capacity and efficiency part. Its 16 GB of LPDDR5 memory dwarfs the 4 GB frame buffer of the RX 6550S, and its 28 W TDP is 44% lower. It also boosts to 2700 MHz, which is 300 MHz higher than the RX 6550S boost, and it delivers a higher pixel rate at 86.40 GPixel/s. This part is suited to workloads that need large memory allocations and lower power draw, at the cost of raw compute throughput.

Both GPUs share the same RDNA 2.0 architecture, 6 nm process, TSMC foundry, and full API support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The RX 6550S packs more compute resources into a smaller die, while the Z2 Go GPU spreads a much larger transistor budget across a larger die with more memory. The RX 6550S is the choice for maximum shader performance and bandwidth per the recorded data. The Z2 Go GPU is the choice for maximum memory capacity and minimum power consumption. Neither part has benchmark scores in the database, so these conclusions rest entirely on the specification differences that are recorded.