AMD Instinct MI455X vs NVIDIA GeForce RTX 3050 A Mobile Comparison

Head-to-Head Benchmarks

The recorded data contains benchmark scores for only one of the two products. The AMD Instinct MI455X has no benchmark entries in the database, with an average benchmark score of 0 and a percentile ranking of 50 among all GPUs. The NVIDIA GeForce RTX 3050 A Mobile, by contrast, has eight benchmark entries, an average score of 8746, and a percentile ranking of 44.

The RTX 3050 A Mobile delivers its strongest results in the Passmark G3D test, scoring 11664. Its Passmark GPU compute score is 4419, while the DirectX 11 test returns a score of 94. The DirectX 9 test produces 152, the DirectX 10 test yields 61, and the DirectX 12 test records 55. The G2D test shows 526. The Geekbench OpenCL score is 52998, which is the highest single number recorded for either product, though it uses a different scoring scale than the Passmark tests.

Because the MI455X has no recorded benchmarks, no direct head-to-head comparison of measured performance can be made from the database. The data shows that the MI455X sits at the 50th percentile among all GPUs, while the RTX 3050 A Mobile sits at the 44th percentile. This percentile gap is small, but the MI455X carries no benchmark scores to substantiate its placement.

The rival comparison data for the RTX 3050 A Mobile places it near the NVIDIA GeForce GTX 460 v2, which has an average score of 8743, a delta of 0 percent. The NVIDIA Quadro P2200 scores 8686, which is 0.7 percent lower. The AMD Radeon R9 M265X scores 8851, which is 1.2 percent higher. The AMD Radeon Pro WX 5100 scores 8863, which is 1.3 percent higher. These deltas are all within 1.3 percent, indicating that the RTX 3050 A Mobile performs in line with these older and workstation-oriented products.

Where Each One Wins

The RTX 3050 A Mobile wins in every category where measurable data exists. It has recorded results across DirectX 9, 10, 11, and 12 tests, a G2D score, a G3D score, a compute score, and an OpenCL score. The MI455X has no wins in any benchmark category because no benchmarks are recorded for it.

The MI455X wins on theoretical specifications. Its FP32 throughput is 157.3 TFLOPS, its FP16 throughput is also 157.3 TFLOPS on a 1:1 ratio, and its texture rate is 2,457.6 GTexel/s. The RTX 3050 A Mobile delivers 4.813 TFLOPS of FP32, the same 4.813 TFLOPS for FP16, and a texture rate of 75.21 GTexel/s. These figures indicate that the MI455X is designed for compute-heavy workloads, while the RTX 3050 A Mobile targets rendering and graphics tasks in portable devices.

The pixel rate also separates the two. The MI455X records 0 MPixel/s, meaning it has no pixel output capability. The RTX 3050 A Mobile records 42.98 GPixel/s, confirming it can drive display outputs. The MI455X has no display outputs at all, while the RTX 3050 A Mobile uses portable device dependent outputs.

Architecture Differences

The MI455X uses the MI450 256CU chip built on CDNA 5.0 architecture, while the RTX 3050 A Mobile uses the GA106 chip built on Ampere architecture. The MI455X is fabricated on a 2 nm process at TSMC, and the RTX 3050 A Mobile uses an 8 nm process at Samsung. The MI455X integrates 320,000 million transistors on a 2990 mm² die, giving a transistor density of 107.0M per mm². The RTX 3050 A Mobile integrates 12,000 million transistors on a 276 mm² die, giving a density of 43.5M per mm².

Memory configurations differ substantially. The MI455X has 432 GB of HBM4 memory on a 24576-bit bus, delivering 23.3 TB/s of bandwidth. The RTX 3050 A Mobile has 4 GB of GDDR6 memory on a 128-bit bus, delivering 192.0 GB/s of bandwidth. The MI455X memory clock is 1900 MHz, which is 7.6 Gbps effective, while the RTX 3050 A Mobile memory clock is 1500 MHz, which is 12 Gbps effective.

The compute resources diverge sharply. The MI455X has 32768 shading units and 1024 TMUs, with 0 ROPs. The RTX 3050 A Mobile has 1792 shading units, 56 TMUs, and 32 ROPs. The RTX 3050 A Mobile also includes 14 ray tracing cores and 56 tensor cores; the MI455X lists no RT or tensor core counts.

The MI455X has a base clock of 1000 MHz and a boost clock of 2400 MHz. The RTX 3050 A Mobile has a base clock of 1065 MHz and a boost clock of 1343 MHz. The MI455X runs at a TDP of 2300 W with a suggested PSU of 2700 W, while the RTX 3050 A Mobile runs at 45 W with no suggested PSU listed.

API support reveals another split. The MI455X lists N/A for DirectX, OpenGL, and Vulkan. The RTX 3050 A Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI455X uses a PCIe 6.0 x16 interface, while the RTX 3050 A Mobile uses PCIe 4.0 x8.

FAQ

Q: Which GPU has a higher FP32 compute throughput?

A: The AMD Instinct MI455X records 157.3 TFLOPS of FP32, versus 4.813 TFLOPS for the NVIDIA GeForce RTX 3050 A Mobile.

Q: Does the MI455X support display outputs?

A: No. The MI455X lists "No outputs" for display outputs and records a pixel rate of 0 MPixel/s. The RTX 3050 A Mobile lists "Portable Device Dependent" outputs and records 42.98 GPixel/s.

Q: What memory capacity does each GPU use?

A: The MI455X has 432 GB of HBM4 memory on a 24576-bit bus with 23.3 TB/s bandwidth. The RTX 3050 A Mobile has 4 GB of GDDR6 memory on a 128-bit bus with 192.0 GB/s bandwidth.

Q: Which GPU has benchmark scores in the database?

A: Only the NVIDIA GeForce RTX 3050 A Mobile has recorded benchmark scores. Its average score is 8746, and its best Passmark G3D result is 11664. The AMD Instinct MI455X has no recorded benchmarks and an average score of 0.

Q: How does the RTX 3050 A Mobile compare to its nearest rivals?

A: The RTX 3050 A Mobile is essentially level with the NVIDIA GeForce GTX 460 v2, which scores 8743, a 0 percent delta. It trails the AMD Radeon R9 M265X by 1.2 percent and the AMD Radeon Pro WX 5100 by 1.3 percent, while leading the NVIDIA Quadro P2200 by 0.7 percent.

Q: What is the power requirement difference?

A: The MI455X has a TDP of 2300 W and a suggested PSU of 2700 W. The RTX 3050 A Mobile has a TDP of 45 W and no suggested PSU listed.

Specification Differences

| Specification | AMD Instinct MI455X | NVIDIA GeForce RTX 3050 A Mobile |

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

| Architecture | CDNA 5.0 | Ampere |

| Process node | 2 nm | 8 nm |

| Foundry | TSMC | Samsung |

| Transistors | 320,000 million | 12,000 million |

| Die size | 2990 mm² | 276 mm² |

| Transistor density | 107.0M / mm² | 43.5M / mm² |

| Base clock | 1000 MHz | 1065 MHz |

| Boost clock | 2400 MHz | 1343 MHz |

| Memory size | 432 GB | 4 GB |

| Memory type | HBM4 | GDDR6 |

| Memory bus width | 24576 bit | 128 bit |

| Memory bandwidth | 23.3 TB/s | 192.0 GB/s |

| Memory clock | 1900 MHz, 7.6 Gbps effective | 1500 MHz, 12 Gbps effective |

| Shading units | 32768 | 1792 |

| TMUs | 1024 | 56 |

| ROPs | 0 | 32 |

| RT cores | Not listed | 14 |

| Tensor cores | Not listed | 56 |

| Pixel rate | 0 MPixel/s | 42.98 GPixel/s |

| Texture rate | 2,457.6 GTexel/s | 75.21 GTexel/s |

| FP32 | 157.3 TFLOPS | 4.813 TFLOPS |

| FP16 | 157.3 TFLOPS (1:1) | 4.813 TFLOPS (1:1) |

| TDP | 2300 W | 45 W |

| Suggested PSU | 2700 W | Not listed |

| Bus interface | PCIe 6.0 x16 | PCIe 4.0 x8 |

| Display outputs | No outputs | Portable Device Dependent |

| DirectX | N/A | 12 Ultimate (12_2) |

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Slot width | EAM Module | IGP |

| Production status | Not listed | End-of-life |

| Release date | 2026-07-22 | 2023-12-31 |

| Predecessor | Radeon Instinct | GeForce 20 Mobile |

The Verdict

The data shows two products built for entirely different purposes. The AMD Instinct MI455X is a compute accelerator with no display outputs, no graphics API support, and no recorded benchmarks. Its specifications point toward datacenter-scale compute: 432 GB of HBM4, 23.3 TB/s of memory bandwidth, 157.3 TFLOPS of FP32, and a 2300 W TDP. The NVIDIA GeForce RTX 3050 A Mobile is a mobile graphics processor with full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support, 4 GB of GDDR6, 42.98 GPixel/s of pixel throughput, and a 45 W TDP.

The RTX 3050 A Mobile has measurable performance data, with an average score of 8746 and a 44th percentile ranking. Its nearest rivals, all within 1.3 percent in average score, confirm that it performs in the range of older discrete GPUs and workstation cards. The MI455X sits at the 50th percentile, but with no benchmark scores, that ranking is not supported by measured results in the database.

For graphics rendering, display output, and portable device use, the RTX 3050 A Mobile is the only one of the two with the required capabilities. For raw compute throughput, memory capacity, and memory bandwidth, the MI455X is overwhelmingly ahead on paper. The MI455X has no ROPs, no display outputs, and no graphics API support, so it cannot function as a conventional graphics card. The RTX 3050 A Mobile has no path to the MI455X's memory capacity or compute scale.

The choice depends entirely on workload. The recorded data supports the RTX 3050 A Mobile for any task requiring graphics output, DirectX, OpenGL, or Vulkan. The MI455X is positioned for compute tasks that can use its 32768 shading units, 1024 TMUs, and 23.3 TB/s of bandwidth. The 2300 W TDP and 2700 W suggested PSU indicate a system-level commitment that the 45 W mobile GPU does not require. No benchmark overlap exists in the database, so any direct performance comparison must rely on the specification differences listed above.