AMD Radeon 820M vs AMD Radeon RX 6550S Comparison

Head-to-Head Benchmarks

The recorded data contains no head-to-head benchmark results between the AMD Radeon 820M and the AMD Radeon RX 6550S. The head-to-head benchmark table is empty, and both products show zero wins in direct comparison. This absence of measured performance data means the analysis must rely on the architectural specifications and derived performance metrics recorded for each GPU.

The Radeon RX 6550S delivers substantially higher theoretical throughput across every measured rasterization category. Its FP32 performance is recorded at 4.915 TFLOPS, while the Radeon 820M is listed at 716.8 GFLOPS. This difference is approximately 6.9 times in favor of the RX 6550S. The FP16 figures show an even larger gap in one direction: the RX 6550S achieves 9.830 TFLOPS with a 2:1 ratio, whereas the 820M achieves 716.8 GFLOPS with a 1:1 ratio. The RX 6550S therefore delivers about 13.7 times the FP16 throughput.

Pixel fill rate favors the RX 6550S at 76.80 GPixel/s compared to 11.20 GPixel/s for the 820M, a ratio of roughly 6.9 times. Texture fill rate shows the RX 6550S at 153.6 GTexel/s versus 22.40 GTexel/s for the 820M, again about 6.9 times higher. The consistency of these ratios reflects the underlying resource counts: the RX 6550S has 1024 shading units, 64 texture mapping units, and 32 render output units, while the 820M has 128 shading units, 8 TMUs, and 4 ROPs. Each of these counts is exactly eight times larger on the RX 6550S.

Ray tracing hardware follows the same pattern. The RX 6550S includes 16 ray tracing cores, while the 820M has 2. This is an eightfold difference in RT core count. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity is recorded in the database.

Clock behavior differs in ways that partially offset the resource gap for the 820M. The 820M has a base clock of 400 MHz and a boost clock of 2800 MHz. The RX 6550S has a base clock of 2000 MHz, a game clock of 2170 MHz, and a boost clock of 2400 MHz. The 820M's boost clock is 400 MHz higher than the RX 6550S's boost clock, but the RX 6550S's base clock is 1600 MHz higher than the 820M's base clock. The game clock of 2170 MHz on the RX 6550S sits between its base and boost figures.

Memory configuration heavily favors the RX 6550S. The RX 6550S uses 4 GB of GDDR6 on a 64-bit bus with 128.0 GB/s bandwidth and a memory clock of 2000 MHz (16 Gbps effective). The 820M uses system shared memory with system dependent bandwidth and system shared bus width. The RX 6550S has a dedicated memory pipeline with fixed bandwidth, while the 820M's memory performance depends entirely on the host system's configuration.

Where Each One Wins

Based on the recorded specifications, the Radeon RX 6550S wins in every category where direct numerical comparison is possible. Its FP32 throughput of 4.915 TFLOPS places it far ahead of the 820M's 716.8 GFLOPS. Its FP16 throughput of 9.830 TFLOPS is 13.7 times the 820M's 716.8 GFLOPS. Pixel rate, texture rate, shading units, TMUs, ROPs, and RT cores all favor the RX 6550S by a factor of eight. Memory bandwidth of 128.0 GB/s with dedicated 4 GB GDDR6 gives it a clear advantage over system shared memory.

The Radeon 820M wins only in the areas of clock speed ceiling and power efficiency. Its boost clock of 2800 MHz exceeds the RX 6550S's boost clock of 2400 MHz. Its TDP of 15 W is one third of the RX 6550S's 50 W. The 820M also uses a more advanced process node at 4 nm versus 6 nm for the RX 6550S. However, the 820M's higher boost clock and lower power draw do not translate into any recorded performance advantage, as its resource counts are eight times lower.

The 820M's system shared memory approach means its effective memory bandwidth is system dependent. In a portable device with fast system memory, the 820M could perform closer to its theoretical limits. The RX 6550S's fixed 128.0 GB/s bandwidth provides consistent performance regardless of host memory configuration. The database records the RX 6550S's memory clock at 2000 MHz with 16 Gbps effective, but no equivalent fixed figure exists for the 820M.

The RX 6550S also wins on generation-specific features tied to its RDNA 2.0 architecture with 5,400 million transistors on a 107 mm² die. The 820M's Krackan Point 2 chip has unknown transistor count and die size in the database. The RX 6550S has a transistor density of 50.5M per mm², while the 820M's density is not recorded.

Architecture Differences

The two GPUs come from different architectural generations. The Radeon 820M uses RDNA 3.5 architecture on a 4 nm TSMC process, belonging to the Navi III IGP generation for Strix Point mobile platforms. Its chip is designated Krackan Point 2. The Radeon RX 6550S uses RDNA 2.0 architecture on a 6 nm TSMC process, belonging to the Navi Mobile generation for the RX 6000M series. Its chip is Navi 24.

Transistor counts differ sharply. The RX 6550S is recorded at 5,400 million transistors on a 107 mm² die, yielding a density of 50.5M per mm². The 820M's transistor count and die size are listed as unknown. The 820M's 4 nm process is smaller than the RX 6550S's 6 nm process, which could indicate higher density, but the database does not record the 820M's actual transistor count to confirm this.

Compute resources scale by a factor of eight across the board. The RX 6550S has 1024 shading units, 64 TMUs, 32 ROPs, and 16 RT cores. The 820M has 128 shading units, 8 TMUs, 4 ROPs, and 2 RT cores. FP16 processing differs in ratio: the RX 6550S achieves 9.830 TFLOPS at a 2:1 ratio relative to FP32, while the 820M achieves 716.8 GFLOPS at a 1:1 ratio. This indicates the RX 6550S has dedicated FP16 throughput capabilities that the 820M lacks.

Memory architecture is fundamentally different. The RX 6550S uses 4 GB of GDDR6 with a 64-bit bus and 128.0 GB/s fixed bandwidth. The 820M uses system shared memory with system shared size, type, and bus width, plus system dependent bandwidth. The RX 6550S has a memory clock of 2000 MHz (16 Gbps effective), whereas the 820M's memory clock is listed as system shared.

Power delivery differs significantly. The 820M has a TDP of 15 W, while the RX 6550S has a TDP of 50 W. Both are slotless IGP designs with no power connectors. The bus interface differs: the 820M uses PCIe 4.0 x8, while the RX 6550S uses PCIe 4.0 x4. The 820M's wider interface may reflect its reliance on system memory, while the RX 6550S's dedicated VRAM reduces its need for bus bandwidth.

Release timing and predecessor lineage differ. The 820M was released on 2025-02-28 and succeeds Navi II IGP. The RX 6550S was released on 2023-01-03 and succeeds Polaris Mobile. Both are currently listed as active production products. Neither has a recorded successor.

The RX 6550S has an explicit game clock of 2170 MHz, a feature absent from the 820M's record. The 820M's boost clock of 2800 MHz is higher than the RX 6550S's boost clock of 2400 MHz, but the RX 6550S's base clock of 2000 MHz is far above the 820M's 400 MHz base. The RX 6550S also has a fixed memory clock, while the 820M's memory clock is system shared.

Both GPUs support the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Display outputs are portable device dependent for both. Neither product has a recorded launch MSRP in the database.

The Verdict

The recorded data shows a clear performance hierarchy. The Radeon RX 6550S is the stronger GPU by every measurable performance metric. Its FP32 throughput of 4.915 TFLOPS is approximately 6.9 times the 820M's 716.8 GFLOPS. Its FP16 throughput of 9.830 TFLOPS is 13.7 times the 820M's 716.8 GFLOPS. Pixel rate, texture rate, shading units, TMUs, ROPs, and RT cores all favor the RX 6550S by a factor of eight. Dedicated 4 GB GDDR6 memory with 128.0 GB/s bandwidth provides fixed, consistent memory performance.

The Radeon 820M belongs in a different performance class. Its 15 W TDP, 4 nm process, and 2800 MHz boost clock indicate a power-efficient integrated solution. Its 128 shading units and 2 RT cores position it for basic graphics workloads rather than demanding gaming or compute tasks. The system shared memory design means its performance varies with the host platform.

The RX 6550S, with its 50 W TDP, 1024 shading units, 16 RT cores, and dedicated GDDR6 memory, is suited for workloads that require sustained throughput. The 6.9 to 13.7 times performance advantage across FP32, FP16, pixel rate, and texture rate makes it the appropriate choice when maximum recorded performance is the priority. Its 5,400 million transistor count and 107 mm² die size indicate a substantially larger and more capable chip.

The 820M's advantages are limited to power consumption, process node, boost clock ceiling, and PCIe lane count. A 15 W TDP is one third of the RX 6550S's 50 W. The 4 nm process is smaller than 6 nm. The 2800 MHz boost clock is 400 MHz higher. The PCIe 4.0 x8 interface is twice as wide. None of these advantages offset the eightfold resource deficit in the recorded data.

The percentile ranking for both GPUs is 50, indicating median performance class placement among all GPUs in the database. The average benchmark score for both is 0, and the nearest rivals lists are empty. These neutral figures reflect the absence of direct benchmark measurements rather than equivalent real-world performance.

FAQ

Q: Which GPU has higher FP32 performance?

A: The Radeon RX 6550S at 4.915 TFLOPS, approximately 6.9 times the Radeon 820M's 716.8 GFLOPS.

Q: How do the ray tracing capabilities compare?

A: The Radeon RX 6550S has 16 ray tracing cores, while the Radeon 820M has 2, an eightfold difference. Both support DirectX 12 Ultimate (12_2).

Q: What memory configurations do these GPUs use?

A: The Radeon RX 6550S uses 4 GB of GDDR6 on a 64-bit bus with 128.0 GB/s bandwidth. The Radeon 820M uses system shared memory with system dependent bandwidth.

Q: Which GPU has the higher boost clock?

A: The Radeon 820M has a boost clock of 2800 MHz, which is 400 MHz higher than the Radeon RX 6550S's boost clock of 2400 MHz.

Q: What are the power requirements?

A: The Radeon 820M has a TDP of 15 W, while the Radeon RX 6550S has a TDP of 50 W. Neither requires power connectors.

Q: When were these GPUs released?

A: The Radeon RX 6550S was released on 2023-01-03, and the Radeon 820M was released on 2025-02-28.

Specification Differences

| Specification | AMD Radeon 820M | AMD Radeon RX 6550S |

|---|---|---|

| Architecture | RDNA 3.5 | RDNA 2.0 |

| Process node | 4 nm | 6 nm |

| Transistors | unknown | 5,400 million |

| Die size | unknown | 107 mm² |

| Transistor density | not recorded | 50.5M / mm² |

| Base clock | 400 MHz | 2000 MHz |

| Boost clock | 2800 MHz | 2400 MHz |

| Game clock | not recorded | 2170 MHz |

| Memory type | System Shared | GDDR6 |

| Memory size | System Shared | 4 GB |

| Memory bus width | System Shared | 64 bit |

| Memory bandwidth | System Dependent | 128.0 GB/s |

| Memory clock | System Shared | 2000 MHz (16 Gbps effective) |

| Shading units | 128 | 1024 |

| TMUs | 8 | 64 |

| ROPs | 4 | 32 |

| RT cores | 2 | 16 |

| FP32 | 716.8 GFLOPS | 4.915 TFLOPS |

| FP16 | 716.8 GFLOPS (1:1) | 9.830 TFLOPS (2:1) |

| Pixel rate | 11.20 GPixel/s | 76.80 GPixel/s |

| Texture rate | 22.40 GTexel/s | 153.6 GTexel/s |

| TDP | 15 W | 50 W |

| Bus interface | PCIe 4.0 x8 | PCIe 4.0 x4 |

| Release date | 2025-02-28 | 2023-01-03 |

| Predecessor | Navi II IGP | Polaris Mobile |

| Generation | Navi III IGP (Strix Point Mobile) | Navi Mobile (RX 6000M) |