AMD Instinct MI300 vs NVIDIA GeForce RTX 5070 Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the AMD Instinct MI300 and the NVIDIA GeForce RTX 5070. The MI300 has no recorded benchmark scores, placing it at the 50th percentile among all GPUs in the database, while the RTX 5070 has a recorded average benchmark score of 40,377 and sits at the 82nd percentile. This disparity in data availability makes a direct comparison challenging, but the recorded RTX 5070 results offer a reference point.

For the RTX 5070, the strongest recorded result is in Geekbench Vulkan with a score of 178,923, followed closely by Geekbench OpenCL at 172,660. The PassMark G3D score of 29,137 and PassMark GPU Compute score of 15,787 further indicate its compute-oriented strengths. In contrast, the MI300's average benchmark score is recorded as zero, and its percentile ranking of 50 suggests it sits near the middle of the database distribution, though no specific test scores are available to substantiate that position.

The RTX 5070's nearest rivals in the database include the AMD Radeon Pro 580 with an average score of 40,318 and a delta of 0.1 percent, the AMD Radeon Pro WX 7100 at 40,063 with a 0.8 percent delta, the AMD Radeon Pro 5300 at 40,870 with a -1.2 percent delta, and the NVIDIA RTX A500 Mobile at 39,568 with a 2 percent delta. These figures indicate the RTX 5070 performs within a narrow band of these competing workstation-oriented GPUs, slightly ahead of the Pro 580 and WX 7100, slightly behind the Pro 5300, and ahead of the RTX A500 Mobile by 2 percent.

Where Each One Wins

Based on the available data, the RTX 5070 demonstrates clear wins in the recorded benchmark suite. Its Geekbench Vulkan score of 178,923 and OpenCL score of 172,660 show strong cross-API compute performance, while the PassMark DirectX tests (9, 10, 11, and 12) yield scores of 320, 180, 277, and 108 respectively, indicating functional but less impressive results in legacy graphics APIs. The PassMark G2D score of 1,305 suggests modest 2D performance, and the G3D score of 29,137 reflects solid 3D rendering capabilities.

The MI300, by contrast, has no recorded benchmark scores in the database. Its 50th percentile ranking implies it matches the median GPU in the database, but without specific test data, its wins cannot be quantified. The hardware specifications suggest it targets a different workload profile entirely, with 128 GB of HBM3 memory and a 5.32 TB/s memory bandwidth, which points toward large-scale compute tasks rather than the graphics-oriented benchmarks where the RTX 5070 has recorded scores.

The data implies the RTX 5070 wins in any benchmark category where scores exist, simply because the MI300 lacks recorded results. For users relying on the database to compare gaming or general-purpose graphics performance, the RTX 5070's recorded numbers provide a measurable baseline. For compute-heavy workloads that exceed 12 GB of memory, the MI300's specifications indicate capabilities beyond what the RTX 5070 can offer, but no benchmark confirms this.

Architecture Differences

The AMD Instinct MI300 uses the CDNA 3.0 architecture on the Aqua Vanjaram chip, fabricated on a 5 nm process at TSMC with 153,000 million transistors on a 1017 mm² die. This yields a transistor density of 150.4 million per square millimeter. The NVIDIA GeForce RTX 5070 uses the Blackwell 2.0 architecture on the GB205 chip, also fabricated on a 5 nm process at TSMC, with 31,100 million transistors on a 263 mm² die, giving a lower transistor density of 118.3 million per square millimeter.

The MI300 has 14,080 shading units, 880 texture mapping units, and zero ROPs, with no ray tracing cores or tensor cores listed. It outputs a pixel rate of 0 MPixel/s and a texture rate of 1,496.0 GTexel/s, with FP32 and FP16 performance both at 47.87 TFLOPS. The RTX 5070 has 6,144 shading units, 192 TMUs, 80 ROPs, 48 ray tracing cores, and 192 tensor cores, with a pixel rate of 201.0 GPixel/s, a texture rate of 482.3 GTexel/s, and FP32 and FP16 performance both at 30.87 TFLOPS.

The memory configurations diverge significantly. The MI300 uses 128 GB of HBM3 with a 8192-bit bus and 5.32 TB/s bandwidth, while the RTX 5070 uses 12 GB of GDDR7 with a 192-bit bus and 672.0 GB/s bandwidth. The MI300's clock speeds are a 1000 MHz base and 1700 MHz boost with memory at 1300 MHz (5.2 Gbps effective), whereas the RTX 5070 has a 2325 MHz base and 2512 MHz boost with memory at 1750 MHz (28 Gbps effective).

The API support also differs: the MI300 lists no DirectX, OpenGL, or Vulkan support, while the RTX 5070 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300 has no display outputs, while the RTX 5070 offers 1x HDMI 2.1b and 3x DisplayPort 2.1b. The MI300 uses a dual 8-pin power connector with a suggested 1000 W PSU, while the RTX 5070 uses a single 16-pin connector with a suggested 600 W PSU.

FAQ

Q: Which GPU has higher FP32 compute throughput?

A: The AMD Instinct MI300 has an FP32 performance of 47.87 TFLOPS, which is higher than the NVIDIA GeForce RTX 5070's 30.87 TFLOPS.

Q: What is the memory capacity difference between the two?

A: The MI300 has 128 GB of HBM3 memory, while the RTX 5070 has 12 GB of GDDR7 memory. The MI300 also has a wider 8192-bit bus and higher bandwidth at 5.32 TB/s versus 672.0 GB/s.

Q: Does the RTX 5070 support ray tracing?

A: Yes, the RTX 5070 has 48 ray tracing cores and 192 tensor cores, while the MI300 lists no ray tracing or tensor core counts.

Q: Which GPU has display outputs?

A: The RTX 5070 has 1x HDMI 2.1b and 3x DisplayPort 2.1b outputs. The MI300 has no display outputs.

Q: What is the TDP of each GPU?

A: The MI300 has a TDP of 600 W with a suggested PSU of 1000 W, while the RTX 5070 has a TDP of 250 W with a suggested PSU of 600 W.

Q: Which GPU has a higher recorded benchmark percentile?

A: The RTX 5070 is at the 82nd percentile among all GPUs in the database with an average benchmark score of 40,377. The MI300 is at the 50th percentile with an average benchmark score of zero.

Specification Differences

| Specification | AMD Instinct MI300 | NVIDIA GeForce RTX 5070 |

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

| Chip | Aqua Vanjaram | GB205 |

| Architecture | CDNA 3.0 | Blackwell 2.0 |

| Transistors | 153,000 million | 31,100 million |

| Die Size | 1017 mm² | 263 mm² |

| Transistor Density | 150.4M / mm² | 118.3M / mm² |

| Base Clock | 1000 MHz | 2325 MHz |

| Boost Clock | 1700 MHz | 2512 MHz |

| Memory Clock | 1300 MHz 5.2 Gbps effective | 1750 MHz 28 Gbps effective |

| Memory Size | 128 GB | 12 GB |

| Memory Type | HBM3 | GDDR7 |

| Memory Bus Width | 8192 bit | 192 bit |

| Memory Bandwidth | 5.32 TB/s | 672.0 GB/s |

| Shading Units | 14,080 | 6,144 |

| TMUs | 880 | 192 |

| ROPs | 0 | 80 |

| RT Cores | Not listed | 48 |

| Tensor Cores | Not listed | 192 |

| Pixel Rate | 0 MPixel/s | 201.0 GPixel/s |

| Texture Rate | 1,496.0 GTexel/s | 482.3 GTexel/s |

| FP32 | 47.87 TFLOPS | 30.87 TFLOPS |

| FP16 | 47.87 TFLOPS (1:1) | 30.87 TFLOPS (1:1) |

| TDP | 600 W | 250 W |

| Slot Width | Not listed | Dual-slot |

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

| Suggested PSU | 1000 W | 600 W |

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

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Length | 267 mm 10.5 inches | 245 mm 9.6 inches |

| Height | 111 mm 4.4 inches | 115 mm 4.5 inches |

| Width | Not listed | 40 mm 1.6 inches |

| Release Date | 2023-01-03 | 2025-03-03 |

| Predecessor | Radeon Instinct | GeForce 40 |

| Successor | Not listed | GeForce 60 |

| Production Status | Not listed | Active |

| Launch MSRP | Not listed | 549 USD |

| Percentile vs All GPUs | 50 | 82 |

| Average Benchmark Score | 0 | 40,377 |

The Verdict

The data presents two GPUs with fundamentally different design goals. The AMD Instinct MI300, with its 128 GB of HBM3 memory, 5.32 TB/s bandwidth, and 47.87 TFLOPS FP32 throughput, is built for massive parallel compute workloads that require large memory capacities and extreme bandwidth. Its lack of display outputs and graphics API support confirms it is not intended for consumer graphics tasks. The RTX 5070, with its 12 GB of GDDR7 memory, 30.87 TFLOPS FP32 performance, and full graphics API support including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, is designed for gaming and mainstream graphics workloads.

The benchmark data reinforces this split. The RTX 5070 has recorded scores across multiple tests, including a Geekbench Vulkan score of 178,923 and a PassMark G3D score of 29,137, and it holds an 82nd percentile ranking. The MI300 has no recorded scores and sits at the 50th percentile, but its hardware specifications indicate compute capabilities that the benchmark suite does not capture.

Users seeking a GPU for graphics-intensive applications, gaming, or general-purpose compute with display output should select the RTX 5070, which has measurable performance in the database and a 549 USD launch MSRP. Users requiring massive memory capacity, extremely high memory bandwidth, and raw FP32 throughput for large-scale compute tasks should select the MI300, despite its lack of recorded benchmark scores. The choice depends entirely on workload requirements, as the two GPUs serve separate markets with minimal overlap.