AMD Instinct MI455X vs NVIDIA GeForce RTX 4070 Ti SUPER Comparison

Head-to-Head Benchmarks

The data available for this comparison is asymmetrical. The AMD Instinct MI455X has no recorded benchmark scores in the database, while the NVIDIA GeForce RTX 4070 Ti SUPER has a full suite of ten benchmark results. This makes a direct numerical head-to-head comparison impossible. The Instinct MI455X records an average benchmark score of 0, placing it at the 50th percentile of all GPUs. The RTX 4070 Ti SUPER, by contrast, holds an average benchmark score of 31087, placing it at the 76th percentile among all GPUs. The absence of any recorded scores for the MI455X means that all performance analysis must rely on its theoretical specifications and architectural characteristics, while the RTX 4070 Ti SUPER can be evaluated through actual measured results.

The RTX 4070 Ti SUPER's raw compute scores show a clear pattern. In Passmark G3D testing, it scores 31811 points. Its Passmark GPU compute score reaches 18372. The Geekbench OpenCL result is 199267, while the Vulkan result is 53683. The 3DMark Steel Nomad DX12 test yields a score of 5569. These figures establish the card's measured performance baseline.

The Instinct MI455X's theoretical peak numbers place it in a different performance class entirely. Its FP32 throughput is listed at 157.3 TFLOPS, compared to the RTX 4070 Ti SUPER's 44.10 TFLOPS. That is a 3.57x advantage in raw floating-point compute. The texture rate for the MI455X is 2457.6 GTexel/s, versus 689.0 GTexel/s for the RTX 4070 Ti SUPER. Memory bandwidth differs even more dramatically: 23.3 TB/s for the MI455X against 672.3 GB/s for the RTX 4070 Ti SUPER, a 34.6x gap.

The nearest rivals for the RTX 4070 Ti SUPER show how tightly clustered its average score is. The NVIDIA Quadro M5000 scores 31206 with a delta of -0.4 percent. The GRID M60-1Q scores 31220 with a delta of -0.4 percent. The RTX PRO 4500 Blackwell scores 31532 with a delta of -1.4 percent. The TITAN RTX scores 31676 with a delta of -1.9 percent. These are all within 1.9 percent of the RTX 4070 Ti SUPER's average, indicating that its performance sits in a well-populated segment.

Where Each One Wins

The RTX 4070 Ti SUPER wins in every recorded benchmark category because it has actual benchmark data. It features DirectX 12 Ultimate support with the 12_2 feature level, OpenGL 4.6, and Vulkan 1.4. It has 66 RT cores and 264 tensor cores, which enable hardware-accelerated ray tracing and AI workloads. The card has 96 ROPs and a pixel rate of 250.6 GPixel/s, making it suitable for rasterized rendering output.

The Instinct MI455X wins in theoretical specifications. It has 32768 shading units, 1024 TMUs, and 0 ROPs. Its FP16 throughput matches its FP32 at 157.3 TFLOPS with a 1:1 ratio, which can be advantageous for workloads that use reduced precision. The memory configuration is unique: 432 GB of HBM4 on a 24576-bit bus. The card draws from a 2300 W TDP envelope, and its suggested PSU is 2700 W. The RTX 4070 Ti SUPER, by contrast, has a 285 W TDP and a 600 W suggested PSU.

The use-case split is stark. The MI455X is an accelerator module with no display outputs, no DirectX support, no OpenGL support, and no Vulkan support. It cannot render to a screen. The RTX 4070 Ti SUPER has 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs. This indicates the MI455X targets compute-only environments, while the RTX 4070 Ti SUPER is a general-purpose graphics card.

Architecture Differences

The two chips come from different architectural lineages. The MI455X uses the CDNA 5.0 architecture, built on a 2 nm process at TSMC. The RTX 4070 Ti SUPER uses the Ada Lovelace architecture, built on a 5 nm process, also at TSMC. The MI455X integrates 320,000 million transistors on a die size of 2990 mm², resulting in a transistor density of 107.0M per mm². The RTX 4070 Ti SUPER integrates 45,900 million transistors on a 379 mm² die, for a density of 121.1M per mm².

The chip designations differ as well. The MI455X uses the MI450 256CU chip, while the RTX 4070 Ti SUPER uses the AD103 chip. The MI455X has no ROPs, which means it has no raster output stage. Its pixel rate is listed as 0 MPixel/s. This is consistent with a compute accelerator that does not handle traditional graphics pipeline output. The RTX 4070 Ti SUPER has 96 ROPs and a pixel rate of 250.6 GPixel/s.

Memory architecture is a major differentiator. The MI455X uses HBM4 memory in a 432 GB configuration, with a 24576-bit bus and 23.3 TB/s bandwidth. The RTX 4070 Ti SUPER uses GDDR6X memory in a 16 GB configuration, with a 256-bit bus and 672.3 GB/s bandwidth. The MI455X memory clock is listed at 1900 MHz with 7.6 Gbps effective, while the RTX 4070 Ti SUPER runs at 1313 MHz with 21 Gbps effective.

Clock speeds also differ. The MI455X has a base clock of 1000 MHz and a boost clock of 2400 MHz. The RTX 4070 Ti SUPER has a base clock of 2340 MHz and a boost clock of 2610 MHz. The RTX card runs at higher frequencies, but the MI455X compensates with far more execution units.

The bus interface differs: PCIe 6.0 x16 for the MI455X, PCIe 4.0 x16 for the RTX 4070 Ti SUPER. The MI455X uses an EAM Module slot width with no power connectors, while the RTX 4070 Ti SUPER is a triple-slot card with a single 16-pin power connector.

The Verdict

The data indicates two different products for two different purposes. The RTX 4070 Ti SUPER is the only one with measured performance. Its average benchmark score of 31087, its 76th percentile ranking, and its narrow delta against four nearest rivals (all within 1.9 percent) give it a concrete performance identity. It has display outputs, graphics API support, and a 285 W power envelope.

The MI455X has no measured scores. Its theoretical specifications suggest a compute accelerator with massive memory capacity and bandwidth, but the database contains no benchmark results to confirm real-world performance. Its 50th percentile ranking with an average score of 0 reflects this absence of data, not a measured performance level.

For rendering, gaming, or general graphics use, the RTX 4070 Ti SUPER is the only option with recorded evidence of capability. For massive memory-bound compute workloads, the MI455X's specifications point to a different class of hardware, but without benchmark data, its actual performance cannot be verified from the database. The RTX 4070 Ti SUPER was released on 2024-01-23 and is marked end-of-life. The MI455X has a release date of 2026-07-22. The RTX card has a launch MSRP of 799 USD.

FAQ

Q: Does the AMD Instinct MI455X have any recorded benchmark scores?

A: No. The database lists no benchmarks for the MI455X, and its average benchmark score is 0, with a 50th percentile ranking among all GPUs.

Q: How does the RTX 4070 Ti SUPER compare to its nearest rivals?

A: Its average score of 31087 is within 1.9 percent of the NVIDIA Quadro M5000 (31206), GRID M60-1Q (31220), RTX PRO 4500 Blackwell (31532), and TITAN RTX (31676).

Q: Which card has more FP32 compute power?

A: The MI455X lists 157.3 TFLOPS FP32, while the RTX 4070 Ti SUPER lists 44.10 TFLOPS. The MI455X's listed value is 3.57x higher.

Q: What display outputs does each card have?

A: The MI455X has no display outputs. The RTX 4070 Ti SUPER has 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Q: What memory configurations do the two cards use?

A: The MI455X uses 432 GB of HBM4 on a 24576-bit bus with 23.3 TB/s bandwidth. The RTX 4070 Ti SUPER uses 16 GB of GDDR6X on a 256-bit bus with 672.3 GB/s bandwidth.

Q: What are the power requirements?

A: The MI455X has a 2300 W TDP and a suggested PSU of 2700 W. The RTX 4070 Ti SUPER has a 285 W TDP and a suggested PSU of 600 W.

Specification Differences

| Field | AMD Instinct MI455X | NVIDIA GeForce RTX 4070 Ti SUPER |

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

| Architecture | CDNA 5.0 | Ada Lovelace |

| Process Node | 2 nm | 5 nm |

| Transistors | 320,000 million | 45,900 million |

| Die Size | 2990 mm² | 379 mm² |

| Transistor Density | 107.0M / mm² | 121.1M / mm² |

| Base Clock | 1000 MHz | 2340 MHz |

| Boost Clock | 2400 MHz | 2610 MHz |

| Memory Size | 432 GB | 16 GB |

| Memory Type | HBM4 | GDDR6X |

| Memory Bus Width | 24576 bit | 256 bit |

| Memory Bandwidth | 23.3 TB/s | 672.3 GB/s |

| Shading Units | 32768 | 8448 |

| TMUs | 1024 | 264 |

| ROPs | 0 | 96 |

| RT Cores | null | 66 |

| Tensor Cores | null | 264 |

| Pixel Rate | 0 MPixel/s | 250.6 GPixel/s |

| Texture Rate | 2,457.6 GTexel/s | 689.0 GTexel/s |

| FP32 | 157.3 TFLOPS | 44.10 TFLOPS |

| FP16 | 157.3 TFLOPS (1:1) | 44.10 TFLOPS (1:1) |

| TDP | 2300 W | 285 W |

| Slot Width | EAM Module | Triple-slot |

| Power Connectors | None | 1x 16-pin |

| Suggested PSU | 2700 W | 600 W |

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

| Display Outputs | No outputs | 1x HDMI 2.13x DisplayPort 1.4a |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Release Date | 2026-07-22 | 2024-01-23 |

| Production Status | null | End-of-life |

| Predecessor | Radeon Instinct | GeForce 30 |

| Successor | null | GeForce 50 |

| Launch MSRP | null | 799 USD |

| Percentile vs All GPUs | 50 | 76 |

| Avg Benchmark Score | 0 | 31087 |