AMD Instinct MI455X vs NVIDIA GeForce RTX 3050 6 GB Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the AMD Instinct MI455X and the NVIDIA GeForce RTX 3050 6 GB. The MI455X has no recorded benchmark scores, an average benchmark score of 0, and a percentile ranking of 50 against all GPUs. The RTX 3050 6 GB, by contrast, has a full suite of recorded results, including a 3DMark Steel Nomad DX12 score of 1515 and a PassMark G3D score of 10738.

The absence of comparative data is itself informative. The MI455X occupies the 50th percentile in the database, meaning half of all recorded GPUs rank below it, yet it has zero completed benchmark runs. The RTX 3050 6 GB sits at the 15th percentile, with an average benchmark score of 2329. Its nearest rivals in the database include the NVIDIA GeForce GT 640M (average score 2335, a delta of -0.3%), the NVIDIA Quadro P620 (average score 2339, delta -0.4%), and the Intel HD Graphics 510 (average score 2305, delta 1%). The RTX 3050 6 GB trails the GT 640M by 0.3%, the Quadro P620 by 0.4%, and the GT 550M by 1.4%, while leading the Intel HD Graphics 510 by 1%.

These delta values are remarkably small, placing the RTX 3050 6 GB in a cluster of older or lower-tier parts. The PassMark results show a wide spread across API tests: DirectX 9 scores 124, DirectX 10 scores 59, DirectX 11 scores 72, DirectX 12 scores 53, and the G2D test scores 882. The GPU compute score of 5192 is nearly half the G3D score, suggesting the card handles compute workloads differently from graphics. The MI455X, with no benchmark entries, cannot be compared on any of these metrics. The data indicates that any head-to-head analysis must rely on architectural specifications rather than empirical results.

Architecture Differences

The two accelerators come from fundamentally different design lineages. The AMD Instinct MI455X uses the MI450 256CU chip built on CDNA 5.0 architecture, fabricated on a 2 nm process at TSMC with 320,000 million transistors on a 2990 mm² die. The transistor density reaches 107.0M per mm². The NVIDIA GeForce RTX 3050 6 GB uses the GA107 chip on Ampere architecture, fabricated on an 8 nm process at Samsung with 8,700 million transistors on a 200 mm² die, yielding a density of 43.5M per mm². The MI455X packs roughly 37 times more transistors into a die that is about 15 times larger.

Clock speeds differ substantially. The MI455X runs at a base of 1000 MHz and a boost of 2400 MHz, while the RTX 3050 6 GB runs at 1042 MHz base and 1470 MHz boost. The MI455X has a higher boost clock by 930 MHz, despite the much larger chip. Memory configurations are in different classes entirely: the MI455X uses 432 GB of HBM4 on a 24576-bit bus with 23.3 TB/s bandwidth and 1900 MHz memory clock (7.6 Gbps effective). The RTX 3050 6 GB uses 6 GB of GDDR6 on a 96-bit bus with 168.0 GB/s bandwidth and 1750 MHz memory clock (14 Gbps effective). The MI455X delivers approximately 139 times more memory bandwidth.

Compute resources show a similar gulf. The MI455X has 32,768 shading units and 1,024 texture mapping units, with zero ROPs and a pixel rate of 0 MPixel/s. Its texture rate is 2,457.6 GTexel/s, and FP32 performance reaches 157.3 TFLOPS with FP16 at 157.3 TFLOPS (1:1). The RTX 3050 6 GB has 2,304 shading units, 72 TMUs, 32 ROPs, 18 RT cores, and 72 tensor cores. Its pixel rate is 47.04 GPixel/s, texture rate is 105.8 GTexel/s, and FP32 performance is 6.774 TFLOPS with FP16 at 6.774 TFLOPS (1:1). The MI455X delivers roughly 23 times the FP32 throughput.

The MI455X offers no display outputs and lists its APIs as N/A for DirectX, OpenGL, and Vulkan. The RTX 3050 6 GB supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, with outputs of 1x HDMI 2.1 and 3x DisplayPort 1.4a. Power and physical characteristics diverge sharply: the MI455X has a TDP of 2300 W with a suggested PSU of 2700 W, no power connectors, and an EAM Module slot width. The RTX 3050 6 GB has a TDP of 70 W, a suggested PSU of 250 W, no power connectors, and a dual-slot design measuring 242 mm by 112 mm.

Where Each One Wins

The RTX 3050 6 GB is the only one of the two with recorded benchmark data, so its wins are empirical. In the database, it shows a PassMark G3D score of 10738, a GPU compute score of 5192, and a 3DMark Steel Nomad DX12 score of 1515. Its DirectX 9 score of 124 is the highest among its API-specific PassMark results, more than double the DirectX 11 score of 72 and more than double the DirectX 10 score of 59. The DirectX 12 score of 53 is the lowest, indicating that the card's performance does not scale uniformly across API generations. The G2D score of 882 suggests competent 2D performance relative to its 3D results, but the overall percentile of 15 places it below the vast majority of recorded GPUs.

The MI455X wins on every architectural metric where data exists. Its FP32 throughput of 157.3 TFLOPS is approximately 23 times the RTX 3050 6 GB's 6.774 TFLOPS. Its memory bandwidth of 23.3 TB/s is approximately 139 times the RTX 3050 6 GB's 168.0 GB/s. Its shading unit count of 32,768 is more than 14 times the RTX 3050 6 GB's 2,304. The MI455X has no ROPs and no display outputs, which means it cannot drive a monitor or perform traditional rasterization, but that is not its purpose. The RTX 3050 6 GB has 32 ROPs and a pixel rate of 47.04 GPixel/s, making it capable of conventional graphics rendering.

The process node advantage belongs to the MI455X: 2 nm versus 8 nm. The transistor density of 107.0M per mm² versus 43.5M per mm² indicates that the MI455X packs more than twice the transistors per unit area. The MI455X also supports PCIe 6.0 x16, while the RTX 3050 6 GB uses PCIe 4.0 x8. The MI455X uses HBM4 memory, a newer and wider memory type, while the RTX 3050 6 GB uses GDDR6. The MI455X's memory bus of 24576 bits is 256 times wider than the RTX 3050 6 GB's 96-bit bus.

The Verdict

The data presents two devices that are not competitors in any practical sense. The AMD Instinct MI455X is a compute accelerator with no display outputs, no graphics API support, and a TDP of 2300 W. It targets workloads that require massive parallel throughput, enormous memory capacity, and extreme bandwidth. The NVIDIA GeForce RTX 3050 6 GB is a consumer graphics card with full DirectX 12 Ultimate support, display outputs, and a TDP of 70 W. It targets conventional gaming and desktop graphics.

For users who need FP32 compute at 157.3 TFLOPS, 432 GB of HBM4 memory, or 23.3 TB/s of bandwidth, the MI455X is the only choice between the two. For users who need to render graphics, run DirectX or Vulkan applications, or output to a display, the RTX 3050 6 GB is the only functional option. The MI455X's zero ROPs and 0 MPixel/s pixel rate confirm that it cannot produce frames for display. The RTX 3050 6 GB's 6.774 TFLOPS FP32 and 168.0 GB/s bandwidth place it in the lower tier of the database, at the 15th percentile, with its nearest rivals being laptop and entry-level desktop parts.

The release dates differ by roughly two and a half years: the RTX 3050 6 GB launched on 2024-02-01, while the MI455X is dated 2026-07-22. The RTX 3050 6 GB is marked as end-of-life, with its predecessor listed as GeForce 20 and successor as GeForce 40. The MI455X lists its predecessor as Radeon Instinct and has no successor. The MI455X has a launch MSRP of none recorded, while the RTX 3050 6 GB has a launch MSRP of 179 USD. The verdict from the database is clear: these are different tools for different jobs, and the recorded data does not support a direct performance comparison.

FAQ

Q: Which GPU has higher FP32 performance?

A: The AMD Instinct MI455X has FP32 performance of 157.3 TFLOPS, while the NVIDIA GeForce RTX 3050 6 GB has 6.774 TFLOPS. The MI455X delivers approximately 23 times the FP32 throughput.

Q: Does the AMD Instinct MI455X support DirectX?

A: No. The MI455X lists its DirectX API support as N/A. The NVIDIA GeForce RTX 3050 6 GB supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What memory types and capacities do these GPUs use?

A: The MI455X uses 432 GB of HBM4 memory on a 24576-bit bus with 23.3 TB/s bandwidth. The RTX 3050 6 GB uses 6 GB of GDDR6 memory on a 96-bit bus with 168.0 GB/s bandwidth.

Q: Can the AMD Instinct MI455X output to a display?

A: No. The MI455X has no display outputs and a pixel rate of 0 MPixel/s. The RTX 3050 6 GB has 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs.

Q: What is the power consumption difference?

A: The MI455X has a TDP of 2300 W with a suggested PSU of 2700 W. The RTX 3050 6 GB has a TDP of 70 W with a suggested PSU of 250 W.

Q: How does the RTX 3050 6 GB compare to its nearest rivals in the database?

A: The RTX 3050 6 GB has an average benchmark score of 2329. It trails the NVIDIA GeForce GT 640M by 0.3%, the NVIDIA Quadro P620 by 0.4%, and the NVIDIA GeForce GT 550M by 1.4%, while leading the Intel HD Graphics 510 by 1%.

Specification Differences

| Specification | AMD Instinct MI455X | NVIDIA GeForce RTX 3050 6 GB |

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

| Architecture | CDNA 5.0 | Ampere |

| Process Node | 2 nm | 8 nm |

| Foundry | TSMC | Samsung |

| Transistors | 320,000 million | 8,700 million |

| Die Size | 2990 mm² | 200 mm² |

| Transistor Density | 107.0M / mm² | 43.5M / mm² |

| Base Clock | 1000 MHz | 1042 MHz |

| Boost Clock | 2400 MHz | 1470 MHz |

| Memory Clock | 1900 MHz 7.6 Gbps effective | 1750 MHz 14 Gbps effective |

| Memory Size | 432 GB | 6 GB |

| Memory Type | HBM4 | GDDR6 |

| Memory Bus Width | 24576 bit | 96 bit |

| Memory Bandwidth | 23.3 TB/s | 168.0 GB/s |

| Shading Units | 32768 | 2304 |

| TMUs | 1024 | 72 |

| ROPs | 0 | 32 |

| RT Cores | None | 18 |

| Tensor Cores | None | 72 |

| Pixel Rate | 0 MPixel/s | 47.04 GPixel/s |

| Texture Rate | 2,457.6 GTexel/s | 105.8 GTexel/s |

| FP32 | 157.3 TFLOPS | 6.774 TFLOPS |

| FP16 | 157.3 TFLOPS (1:1) | 6.774 TFLOPS (1:1) |

| TDP | 2300 W | 70 W |

| Slot Width | EAM Module | Dual-slot |

| Power Connectors | None | None |

| Suggested PSU | 2700 W | 250 W |

| Bus Interface | PCIe 6.0 x16 | PCIe 4.0 x8 |

| Display Outputs | No outputs | 1x HDMI 2.1, 3x DisplayPort 1.4a |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | Not recorded | 242 mm 9.5 inches length, 112 mm 4.4 inches height |

| Production Status | Not recorded | End-of-life |

| Release Date | 2026-07-22 | 2024-02-01 |

| Predecessor | Radeon Instinct | GeForce 20 |

| Successor | None | GeForce 40 |

| Launch MSRP | None recorded | 179 USD |