AMD Instinct MI300X vs NVIDIA GeForce RTX 4070 Ti Comparison

Head-to-Head Benchmarks

The only directly comparable benchmark in the database is Geekbench OpenCL, and the result is decisive. The AMD Instinct MI300X scores 317994, while the NVIDIA GeForce RTX 4070 Ti scores 176953. That is a 79.7% advantage for the AMD accelerator. In raw compute throughput, the MI300X delivers 81.72 TFLOPS of FP32 and FP16 (1:1) performance, versus 40.09 TFLOPS for the RTX 4070 Ti in both precision modes. The MI300X essentially doubles the compute output on paper, and the OpenCL result confirms that gap in practice.

The RTX 4070 Ti does have its own benchmark wins, but none of them are against the MI300X directly. Its database includes 3DMark Steel Nomad DX12 (5024), Passmark DirectX 10 (187), DirectX 11 (288), DirectX 12 (116), DirectX 9 (352), G2D (1200), G3D (31624), and GPU Compute (18396). The MI300X has no entries in those tests, so no head-to-head comparison exists there. The only shared test is OpenCL, and the MI300X wins it outright.

Context from the nearest rivals reinforces the MI300X's standing. The MI300X sits at the 100th percentile of all GPUs in the database. Its nearest competitors include the NVIDIA H200 NVL (334891 average score, 5% higher), the NVIDIA B200 (345482, 8% higher), the NVIDIA L40S (295763, 7.5% lower), and the NVIDIA RTX 6000 Ada Generation (287237, 10.7% lower). The MI300X is within striking distance of the top data center accelerators and clearly ahead of the L40S and RTX 6000 Ada.

The RTX 4070 Ti, by contrast, sits at the 84th percentile. Its nearest rivals are far less exotic: the RTX 5090 Mobile (45152, 0.8% higher), the Radeon Pro 5500 XT (45384, 1.3% higher), the RTX A6000 (44075, 1.6% lower), and the Intel Arc A730M (45592, 1.7% higher). The RTX 4070 Ti's average benchmark score is 44795, which places it in a tight cluster of mid-range workstation and mobile parts. The MI300X's average score of 317994 is over seven times higher. There is no realistic comparison between these two in compute workloads.

Where Each One Wins

The MI300X wins in every scenario that leverages raw compute throughput, memory bandwidth, or massive memory capacity. Its OpenCL score of 317994 versus 176953 for the RTX 4070 Ti shows a 79.7% lead in general-purpose GPU compute. The FP32 and FP16 figures of 81.72 TFLOPS each are double the RTX 4070 Ti's 40.09 TFLOPS. Memory bandwidth is another clear victory: the MI300X moves 5.32 TB/s versus 504.2 GB/s for the RTX 4070 Ti, a 10.5x difference. Capacity is even more lopsided at 192 GB of HBM3 versus 12 GB of GDDR6X. Any workload that fits in the MI300X's memory, such as large language model inference, scientific simulation, or data analytics, will crush the RTX 4070 Ti.

The RTX 4070 Ti wins in areas the MI300X simply does not address. The MI300X has no display outputs, no pixel rate (0 MPixel/s), no DirectX, OpenGL, or Vulkan support, and no ray tracing cores listed. The RTX 4070 Ti has 80 ROPs, a pixel rate of 208.8 GPixel/s, 60 ray tracing cores, and 240 tensor cores. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. For gaming, ray tracing, or any rasterization-heavy rendering, the RTX 4070 Ti is the only functional choice. The MI300X is an accelerator, not a graphics card.

The RTX 4070 Ti also wins on physical practicality. It is a dual-slot card measuring 285 mm by 112 mm by 42 mm, while the MI300X is an OAM module with no board dimensions listed. The RTX 4070 Ti uses a single 16-pin power connector and requires a 600 W suggested PSU. The MI300X has no power connectors because it is designed for server integration, and its suggested PSU is 1150 W. The RTX 4070 Ti's 285 W TDP is far easier to manage in a desktop system.

Architecture Differences

The MI300X uses the Aqua Vanjaram chip built on TSMC's 5 nm process. It packs 153,000 million transistors on a 1017 mm² die, giving a transistor density of 150.4M per mm². The architecture is CDNA 3.0, part of the Instinct (MIx) generation. The RTX 4070 Ti uses the AD104 chip, also on TSMC's 5 nm node, but with 35,800 million transistors on a 294 mm² die, a density of 121.8M per mm². The architecture is Ada Lovelace, part of the GeForce 40 series.

The MI300X has 19456 shading units and 1216 texture mapping units, but zero ROPs. The RTX 4070 Ti has 7680 shading units, 240 TMUs, and 80 ROPs. The MI300X has no ray tracing cores or tensor cores listed, while the RTX 4070 Ti has 60 RT cores and 240 tensor cores. The MI300X's texture rate is 2,553.6 GTexel/s versus 626.4 GTexel/s for the RTX 4070 Ti. The MI300X's pixel rate is zero, confirming it is not designed for display output.

Memory architecture is the most fundamental split. The MI300X uses HBM3 with a 8192-bit bus, 192 GB capacity, and 5.32 TB/s bandwidth. The RTX 4070 Ti uses GDDR6X on a 192-bit bus, 12 GB capacity, and 504.2 GB/s bandwidth. The MI300X's memory clock is listed as 1300 MHz with 5.2 Gbps effective, while the RTX 4070 Ti runs at 1313 MHz with 21 Gbps effective. The massive bus width difference explains the bandwidth gap.

The MI300X uses PCIe 5.0 x16, while the RTX 4070 Ti uses PCIe 4.0 x16. The MI300X has no display outputs and no API support. The RTX 4070 Ti has 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs, plus full DirectX, OpenGL, and Vulkan support. The MI300X is an OAM module with a 750 W TDP, while the RTX 4070 Ti is a dual-slot card with a 285 W TDP. The RTX 4070 Ti's launch MSRP is 799 USD.

FAQ

Q: Which GPU has higher raw compute performance in OpenCL?

A: The AMD Instinct MI300X scores 317994 in Geekbench OpenCL, while the NVIDIA GeForce RTX 4070 Ti scores 176953. The MI300X leads by 79.7%.

Q: Can the MI300X be used for gaming?

A: No. The MI300X has no display outputs, no pixel rate, and no DirectX, OpenGL, or Vulkan support. The RTX 4070 Ti supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and has display outputs.

Q: What is the memory capacity difference?

A: The MI300X has 192 GB of HBM3 memory. The RTX 4070 Ti has 12 GB of GDDR6X memory. The MI300X also has a much wider 8192-bit bus versus 192-bit, and 5.32 TB/s bandwidth versus 504.2 GB/s.

Q: Which card has more shading units?

A: The MI300X has 19456 shading units. The RTX 4070 Ti has 7680 shading units. The MI300X also has 1216 TMUs versus 240, but the RTX 4070 Ti has 80 ROPs while the MI300X has none.

Q: Does the RTX 4070 Ti support ray tracing?

A: Yes. The RTX 4070 Ti has 60 ray tracing cores and 240 tensor cores. The MI300X has no ray tracing or tensor core counts listed.

Q: What are the power requirements?

A: The MI300X has a 750 W TDP and a suggested PSU of 1150 W. The RTX 4070 Ti has a 285 W TDP and a suggested PSU of 600 W. The MI300X is an OAM module with no power connectors, while the RTX 4070 Ti uses a single 16-pin connector.

Specification Differences

| Specification | AMD Instinct MI300X | NVIDIA GeForce RTX 4070 Ti |

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

| Architecture | CDNA 3.0 | Ada Lovelace |

| Process Node | 5 nm | 5 nm |

| Transistors | 153,000 million | 35,800 million |

| Die Size | 1017 mm² | 294 mm² |

| Transistor Density | 150.4M / mm² | 121.8M / mm² |

| Base Clock | 1000 MHz | 2310 MHz |

| Boost Clock | 2100 MHz | 2610 MHz |

| Memory Size | 192 GB | 12 GB |

| Memory Type | HBM3 | GDDR6X |

| Memory Bus | 8192 bit | 192 bit |

| Memory Bandwidth | 5.32 TB/s | 504.2 GB/s |

| Shading Units | 19456 | 7680 |

| TMUs | 1216 | 240 |

| ROPs | 0 | 80 |

| RT Cores | None listed | 60 |

| Tensor Cores | None listed | 240 |

| Pixel Rate | 0 MPixel/s | 208.8 GPixel/s |

| Texture Rate | 2,553.6 GTexel/s | 626.4 GTexel/s |

| FP32 | 81.72 TFLOPS | 40.09 TFLOPS |

| FP16 | 81.72 TFLOPS (1:1) | 40.09 TFLOPS (1:1) |

| TDP | 750 W | 285 W |

| Slot Width | OAM Module | Dual-slot |

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

| Suggested PSU | 1150 W | 600 W |

| Bus Interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| 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 |

| Release Date | 2023-12-05 | 2023-01-02 |

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

The Verdict

The data separates these two products cleanly. The AMD Instinct MI300X is a compute accelerator for server and data center workloads. Its 317994 OpenCL score, 81.72 TFLOPS FP32, 192 GB HBM3, and 5.32 TB/s bandwidth put it in the top 1% of all GPUs in the database, alongside the NVIDIA H200 NVL and B200. The NVIDIA GeForce RTX 4070 Ti is a consumer graphics card with a 44795 average benchmark score, 176953 OpenCL result, 12 GB GDDR6X, and full rasterization and ray tracing support. Its 84th percentile ranking places it among mid-range mobile and workstation parts.

For a builder assembling a desktop gaming or rendering system, the RTX 4070 Ti is the only option that functions. It has display outputs, API support, and a 285 W TDP that fits in a standard power envelope. For a data center operator running compute workloads that fit in memory, the MI300X is in a different class: 79.7% faster in OpenCL, with 16x the memory capacity and over 10x the bandwidth. The MI300X has no display output and no graphics API support, so it cannot replace the RTX 4070 Ti in a gaming rig. The RTX 4070 Ti cannot approach the MI300X's compute density or memory capacity. These are complementary tools for different jobs, and the benchmark data confirms that neither can substitute for the other.