AMD Instinct MI355X vs NVIDIA RTX 3000 Mobile Ada Generation Comparison

Head-to-Head Benchmarks

The database contains no recorded benchmark results for either the AMD Instinct MI355X or the NVIDIA RTX 3000 Mobile Ada Generation. Both entries show an average benchmark score of zero and a percentile ranking of 50 among all GPUs. With no head-to-head benchmark data, wins and losses cannot be assigned. The recorded data indicates that neither part has been exercised in the benchmark suite, leaving performance comparisons entirely dependent on the technical specifications listed in the database.

The absence of scores is notable given the scale of the two products. The AMD Instinct MI355X is an accelerator module with a thermal design power of 1400 W, while the NVIDIA RTX 3000 Mobile Ada Generation is a mobile integrated graphics processor rated at 115 W. The MI355X targets compute workloads with HBM3e memory, whereas the RTX 3000 Mobile targets portable systems with GDDR6 memory. Without benchmark runs, any quantitative win or loss remains unmeasured.

The database records zero wins for each side. The percentile fields are identical at 50, which indicates that neither GPU has been ranked against the broader database population. This is an unusual state for a comparison page, but the data is clear: no measured performance deltas exist for these two parts.

FAQ

Q: What is the thermal design power of the AMD Instinct MI355X?

A: The AMD Instinct MI355X has a thermal design power of 1400 W, with a suggested power supply rating of 1800 W.

Q: What memory configuration does the NVIDIA RTX 3000 Mobile Ada Generation use?

A: The NVIDIA RTX 3000 Mobile Ada Generation uses 8 GB of GDDR6 memory on a 128-bit bus, providing 256.0 GB/s of bandwidth.

Q: Which architecture does each GPU use?

A: The AMD Instinct MI355X uses CDNA 4.0 architecture, while the NVIDIA RTX 3000 Mobile Ada Generation uses Ada Lovelace architecture.

Q: What is the transistor count for each chip?

A: The AMD Instinct MI355X has 185,000 million transistors on a 2380 mm² die, while the NVIDIA RTX 3000 Mobile Ada Generation has 22,900 million transistors on a 188 mm² die.

Q: Are there any benchmark scores available for either GPU?

A: No. Both entries show an average benchmark score of 0, and the head-to-head benchmark list is empty.

Q: What is the release date for each product?

A: The AMD Instinct MI355X was released on 2025-06-11, and the NVIDIA RTX 3000 Mobile Ada Generation was released on 2023-03-20.

The Verdict

The data cannot support a performance verdict. No benchmark scores exist for either GPU, and the nearest rival lists are empty. The only objective comparisons come from the specification sheets, which describe two fundamentally different products.

The AMD Instinct MI355X is an OAM module with 288 GB of HBM3e memory, 8192-bit bus width, and 8.19 TB/s memory bandwidth. It has 16384 shading units, 1024 texture mapping units, and zero ROPs. Its FP32 throughput is 78.64 TFLOPS, and its FP16 throughput is also 78.64 TFLOPS with a 1:1 ratio. The chip contains 185,000 million transistors fabricated on a 3 nm process at TSMC, with a die size of 2380 mm². It uses PCIe 5.0 x16, has no display outputs, and consumes up to 1400 W.

The NVIDIA RTX 3000 Mobile Ada Generation is an integrated graphics processor with 8 GB of GDDR6 memory, 128-bit bus, and 256.0 GB/s bandwidth. It has 4608 shading units, 144 TMUs, 48 ROPs, 36 ray tracing cores, and 144 tensor cores. Its FP32 throughput is 15.62 TFLOPS, and its FP16 throughput is also 15.62 TFLOPS with a 1:1 ratio. The chip contains 22,900 million transistors on a 5 nm process at TSMC, with a die size of 188 mm². It uses PCIe 4.0 x16, supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and consumes 115 W.

The verdict is straightforward: the AMD part is designed for server-scale compute with massive memory capacity and bandwidth, while the NVIDIA part is designed for mobile workstations with standard graphics APIs and ray tracing support. Neither can substitute for the other. The MI355X has no display outputs, while the RTX 3000 Mobile has portable-device-dependent outputs. The MI355X has no ROPs, making it unsuitable for rasterization, while the RTX 3000 Mobile has 48 ROPs. The MI355X lacks ray tracing cores and tensor cores in the recorded data, while the RTX 3000 Mobile includes both.

Specification Differences

The two GPUs differ in nearly every measured specification.

| Specification | AMD Instinct MI355X | NVIDIA RTX 3000 Mobile Ada Generation |

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

| Architecture | CDNA 4.0 | Ada Lovelace |

| Process node | 3 nm | 5 nm |

| Transistors | 185,000 million | 22,900 million |

| Die size | 2380 mm² | 188 mm² |

| Transistor density | 77.7M / mm² | 121.8M / mm² |

| Base clock | 1000 MHz | 1395 MHz |

| Boost clock | 2400 MHz | 1695 MHz |

| Memory size | 288 GB | 8 GB |

| Memory type | HBM3e | GDDR6 |

| Memory bus | 8192 bit | 128 bit |

| Memory bandwidth | 8.19 TB/s | 256.0 GB/s |

| Shading units | 16384 | 4608 |

| TMUs | 1024 | 144 |

| ROPs | 0 | 48 |

| Ray tracing cores | None recorded | 36 |

| Tensor cores | None recorded | 144 |

| Pixel rate | 0 MPixel/s | 81.36 GPixel/s |

| Texture rate | 2,457.6 GTexel/s | 244.1 GTexel/s |

| FP32 | 78.64 TFLOPS | 15.62 TFLOPS |

| FP16 | 78.64 TFLOPS | 15.62 TFLOPS |

| TDP | 1400 W | 115 W |

| Slot width | OAM Module | IGP |

| Bus interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display outputs | No outputs | Portable Device Dependent |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Release date | 2025-06-11 | 2023-03-20 |

The MI355X has 3.55 times the shading units, 7.11 times the TMUs, zero ROPs versus 48, and 5.03 times the FP32 throughput. The RTX 3000 Mobile has a higher base clock by 395 MHz, but the MI355X has a higher boost clock by 705 MHz. The memory capacity difference is 36 times, and the bandwidth difference is 32 times. The die size difference is 12.66 times, but the transistor density is higher on the NVIDIA chip at 121.8M per mm² versus 77.7M per mm².

Architecture Differences

The AMD Instinct MI355X uses CDNA 4.0, which is a compute-focused architecture optimized for data center workloads. The chip is built on a 3 nm process at TSMC and contains 185,000 million transistors. The die measures 2380 mm², which is the largest physical footprint in this comparison. The architecture has no ROPs, no ray tracing cores, no tensor cores, and no display outputs. It supports no graphics APIs (DirectX, OpenGL, and Vulkan are all listed as N/A). The memory subsystem uses HBM3e across an 8192-bit bus, achieving 8.19 TB/s of bandwidth. The FP32 and FP16 rates are identical at 78.64 TFLOPS, indicating a 1:1 ratio with no specialized half-precision boost.

The NVIDIA RTX 3000 Mobile Ada Generation uses Ada Lovelace, which is a graphics and compute architecture designed for mobile workstations. The chip is built on a 5 nm process at TSMC and contains 22,900 million transistors. The die measures 188 mm². The architecture includes 36 ray tracing cores and 144 tensor cores, which are absent from the AMD data. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The memory subsystem uses GDDR6 across a 128-bit bus, achieving 256.0 GB/s of bandwidth. The FP32 and FP16 rates are identical at 15.62 TFLOPS, also a 1:1 ratio.

The transistor density difference is notable: the NVIDIA chip packs 121.8M transistors per mm², while the AMD chip packs 77.7M per mm². This reflects the different design goals. The MI355X prioritizes raw memory bandwidth and compute throughput at the cost of die area and power. The RTX 3000 Mobile prioritizes integration efficiency within a 115 W thermal envelope. The AMD part has a TDP of 1400 W, which is 12.17 times higher than the NVIDIA part. The power connector field is listed as "None" for both, but the AMD part requires a suggested PSU of 1800 W.

The AMD part has a memory clock of 2000 MHz with 8 Gbps effective, while the NVIDIA part also has a memory clock of 2000 MHz but with 16 Gbps effective. The effective rate is twice as high on the NVIDIA chip, but the bus width difference dominates the bandwidth calculation.

Where Each One Wins

Based strictly on the recorded specifications, the AMD Instinct MI355X wins in every compute throughput metric. It delivers 78.64 TFLOPS of FP32 and FP16 performance, which is 5.03 times the NVIDIA part's 15.62 TFLOPS. Its texture rate of 2,457.6 GTexel/s is 10.07 times higher than the NVIDIA part's 244.1 GTexel/s. Its memory bandwidth of 8.19 TB/s is 32 times higher than the NVIDIA part's 256.0 GB/s. Its memory capacity of 288 GB is 36 times larger. Its boost clock of 2400 MHz is 705 MHz higher than the NVIDIA part's 1695 MHz. Its bus interface is PCIe 5.0 x16 versus PCIe 4.0 x16.

The NVIDIA RTX 3000 Mobile Ada Generation wins in every graphics-specific metric. It has 48 ROPs versus zero, giving it a pixel rate of 81.36 GPixel/s versus 0 MPixel/s. It has 36 ray tracing cores and 144 tensor cores, which the AMD part does not list. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the AMD part lists N/A for all three. Its base clock of 1395 MHz is 395 MHz higher than the AMD part's 1000 MHz. Its transistor density of 121.8M per mm² is higher than the AMD part's 77.7M per mm². Its TDP of 115 W is far lower than the AMD part's 1400 W, and it is an IGP with portable-device-dependent display outputs, whereas the AMD part has no outputs.

The use-case split is clear. The AMD Instinct MI355X is for compute-heavy workloads that require massive memory capacity, extreme bandwidth, and high FP32/FP16 throughput, such as large-scale model training or inference in a data center. The NVIDIA RTX 3000 Mobile Ada Generation is for mobile workstations that need standard graphics APIs, ray tracing, tensor acceleration, and rasterization within a low power budget. The AMD part cannot display an image, while the NVIDIA part can. The NVIDIA part cannot approach the memory capacity or bandwidth of the AMD part, while the AMD part cannot approach the power efficiency or graphics feature set of the NVIDIA part.

The release dates also differ: the MI355X launched on 2025-06-11, while the RTX 3000 Mobile launched on 2023-03-20. The MI355X has no recorded predecessor or successor, while the RTX 3000 Mobile lists Ampere-MW as its predecessor and Blackwell-MW as its successor. The production status for the MI355X is not recorded, while the RTX 3000 Mobile is listed as active.