AMD Radeon Instinct MI25 vs NVIDIA GeForce RTX 5070 Ti Comparison

Head-to-Head Benchmarks

The only directly comparable benchmark in the database is Geekbench OpenCL, and the result is emphatic. The NVIDIA GeForce RTX 5070 Ti scores 212,363 points, while the AMD Radeon Instinct MI25 scores 68,562 points. That translates to a 67.7% deficit for the AMD card, meaning the RTX 5070 Ti delivers roughly three times the OpenCL performance of the MI25. This is not a close contest; the NVIDIA card wins the sole head-to-head comparison decisively.

Looking at the broader database context, the MI25's 68,562 average score places it at the 90th percentile of all GPUs tracked. It sits within 2% of several well-known competitors: it trails the Intel Arc A770 by 0.4% (68,809), the NVIDIA CMP 90HX by 0.6% (69,000), the AMD Radeon Pro WX 8200 by 1.9% (69,870), and the NVIDIA Quadro P6000 by 2% (69,986). These are tight margins, indicating that the MI25 is competitive with a specific class of workstation and mining cards from its era, but it is not a leader.

The RTX 5070 Ti, by contrast, has a much richer benchmark profile. Its average benchmark score across all recorded tests is 49,957, which places it at the 86th percentile of all GPUs. This average is pulled down by low scores in synthetic legacy tests, but the modern workloads tell a different story. In Geekbench Vulkan, it scores 225,122, and in Geekbench OpenCL, 212,363. Its Passmark G3D score is 32,974, and its Passmark GPU Compute score is 20,203. The nearest rivals in the database are the AMD Radeon RX Vega 64 (50,001, delta -0.1%), the Intel Arc A550M (49,737, delta +0.4%), the AMD Radeon RX 6900 XT (50,951, delta -2%), and the AMD Radeon RX 6800 XT (48,477, delta +3.1%). This places the RTX 5070 Ti in a very different performance class than the MI25, despite the percentile ranking being slightly lower (86 vs 90) due to the inclusion of legacy DirectX 9 and 10 tests in its average.

The delta of -67.7% in the only shared test is the single most important number in this comparison. It shows that for compute workloads, the RTX 5070 Ti is not just faster, it is in a different tier entirely. The MI25's performance is anchored to its 2017-era architecture, while the RTX 5070 Ti benefits from nearly eight years of architectural advancement.

Architecture Differences

The two cards could not be more different under the hood. The AMD Radeon Instinct MI25 uses the Vega 10 chip built on GCN 5.0 architecture, fabricated on a 14 nm process at GlobalFoundries. The RTX 5070 Ti uses the GB203 chip on Blackwell 2.0 architecture, fabricated on a 5 nm process at TSMC. This process node difference, 14 nm versus 5 nm, is a fundamental driver of the performance gap.

Transistor counts tell the story of scale. The MI25 packs 12,500 million transistors on a 495 mm² die, yielding a transistor density of 25.3 million per mm². The RTX 5070 Ti packs 45,600 million transistors on a smaller 378 mm² die, yielding a density of 120.6 million per mm². The RTX 5070 Ti has 3.6 times the transistor count on a die that is 24% smaller, highlighting the density advantage of the newer process.

Core configurations diverge sharply. The MI25 has 4,096 shading units, 256 texture mapping units, and 64 ROPs. The RTX 5070 Ti has 8,960 shading units, 280 TMUs, and 96 ROPs. The NVIDIA card also includes 70 RT cores and 280 tensor cores, features that the MI25 lacks entirely. These dedicated hardware units enable ray tracing and AI acceleration, capabilities that are absent from the older AMD card.

Memory architectures are generational leaps apart. The MI25 uses 16 GB of HBM2 on a 2048-bit bus, delivering 436.2 GB/s of bandwidth. The RTX 5070 Ti also has 16 GB, but uses GDDR7 on a 256-bit bus, delivering 896.0 GB/s. Despite a much narrower bus, the RTX 5070 Ti more than doubles the memory bandwidth thanks to the faster GDDR7 standard. Clock speeds follow a similar pattern: the MI25 runs at 1400 MHz base and 1500 MHz boost, while the RTX 5070 Ti runs at 2295 MHz base and 2452 MHz boost.

The compute output reflects all these differences. The MI25 delivers 12.29 TFLOPS of FP32 and 24.58 TFLOPS of FP16 (2:1 ratio). The RTX 5070 Ti delivers 43.94 TFLOPS of FP32 and 43.94 TFLOPS of FP16 (1:1 ratio). The RTX 5070 Ti is 3.6 times faster in FP32 and 1.8 times faster in FP16, with the added benefit of equal FP16 and FP32 throughput rather than a halved rate.

Pixel and texture rates reinforce the gap. The MI25 manages 96.00 GPixel/s and 384.0 GTexel/s. The RTX 5070 Ti manages 235.4 GPixel/s and 686.6 GTexel/s, representing 2.5 times and 1.8 times the rates respectively. API support also differs: the MI25 supports DirectX 12 (12_1) and Vulkan 1.3, while the RTX 5070 Ti supports DirectX 12 Ultimate (12_2) and Vulkan 1.4.

FAQ

Q: Which card is faster in OpenCL compute?

A: The NVIDIA GeForce RTX 5070 Ti is decisively faster, scoring 212,363 in Geekbench OpenCL compared to the AMD Radeon Instinct MI25's 68,562. This represents a 67.7% advantage for the NVIDIA card.

Q: Do both cards have the same memory capacity?

A: Yes, both have 16 GB of memory. However, the MI25 uses HBM2 with a 2048-bit bus and 436.2 GB/s bandwidth, while the RTX 5070 Ti uses GDDR7 with a 256-bit bus and 896.0 GB/s bandwidth. The RTX 5070 Ti has more than double the bandwidth despite a much narrower bus.

Q: Does the MI25 support ray tracing?

A: No. The MI25 has no RT cores, while the RTX 5070 Ti includes 70 RT cores. The NVIDIA card also includes 280 tensor cores, which the MI25 lacks entirely.

Q: What is the transistor density difference?

A: The MI25 has a transistor density of 25.3 million per mm² on a 14 nm process, while the RTX 5070 Ti has a density of 120.6 million per mm² on a 5 nm process. The RTX 5070 Ti is nearly 5 times denser.

Q: Which card has a higher boost clock?

A: The RTX 5070 Ti boosts to 2452 MHz, compared to the MI25's 1500 MHz boost clock. The base clocks are 2295 MHz versus 1400 MHz respectively.

Q: Are there differences in display outputs?

A: Yes, significant ones. The MI25 has no display outputs, making it a compute-only card. The RTX 5070 Ti has 1x HDMI 2.1b and 3x DisplayPort 2.1b outputs.

Specification Differences

| Specification | AMD Radeon Instinct MI25 | NVIDIA GeForce RTX 5070 Ti |

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

| Architecture | GCN 5.0 | Blackwell 2.0 |

| Process Node | 14 nm | 5 nm |

| Foundry | GlobalFoundries | TSMC |

| Transistors | 12,500 million | 45,600 million |

| Die Size | 495 mm² | 378 mm² |

| Transistor Density | 25.3M / mm² | 120.6M / mm² |

| Base Clock | 1400 MHz | 2295 MHz |

| Boost Clock | 1500 MHz | 2452 MHz |

| Memory Type | HBM2 | GDDR7 |

| Memory Bus Width | 2048 bit | 256 bit |

| Memory Bandwidth | 436.2 GB/s | 896.0 GB/s |

| Shading Units | 4096 | 8960 |

| TMUs | 256 | 280 |

| ROPs | 64 | 96 |

| RT Cores | None | 70 |

| Tensor Cores | None | 280 |

| Pixel Rate | 96.00 GPixel/s | 235.4 GPixel/s |

| Texture Rate | 384.0 GTexel/s | 686.6 GTexel/s |

| FP32 Performance | 12.29 TFLOPS | 43.94 TFLOPS |

| FP16 Performance | 24.58 TFLOPS (2:1) | 43.94 TFLOPS (1:1) |

| TDP | 300 W | 300 W |

| Power Connectors | 2x 8-pin | 1x 16-pin |

| Bus Interface | PCIe 3.0 x16 | PCIe 5.0 x16 |

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

| DirectX Support | 12 (12_1) | 12 Ultimate (12_2) |

| Vulkan Support | 1.3 | 1.4 |

| Dimensions | 267 mm x 111 mm | 304 mm x 137 mm x 48 mm |

| Production Status | End-of-life | Active |

| Release Date | 2017-06-26 | 2025-02-19 |

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 5070 Ti is the superior card in every measurable compute metric. Its OpenCL score of 212,363 versus the MI25's 68,562 represents a 67.7% advantage, and its architectural advantages are overwhelming. The RTX 5070 Ti has more than double the shading units, nearly double the ROPs, 3.6 times the FP32 throughput, and more than double the memory bandwidth. It adds RT cores and tensor cores, supports newer API versions, and includes display outputs. It is also an active product, released in 2025, while the MI25 is end-of-life from 2017.

The AMD Radeon Instinct MI25's only arguments are historical. It sits at the 90th percentile of all GPUs, slightly above the RTX 5070 Ti's 86th percentile, but this is an artifact of the benchmark selection. The MI25's single Geekbench OpenCL score of 68,562 places it within 2% of contemporaries like the NVIDIA Quadro P6000 and AMD Radeon Pro WX 8200. It was a capable compute card for its generation, but its 14 nm process, HBM2 memory, and lack of dedicated ray tracing or tensor hardware place it firmly in a bygone era.

For anyone choosing between these two based on recorded data, the RTX 5070 Ti is the only rational pick. It dominates the shared benchmark, offers a full feature set including ray tracing and AI acceleration, and matches the MI25's 300 W TDP while delivering dramatically higher performance. The MI25 remains relevant only as a comparison point for legacy compute workloads, not as a competitive option against modern hardware. The RTX 5070 Ti wins this comparison outright, with the 67.7% delta in OpenCL serving as the definitive summary.