AMD Instinct MI300 vs NVIDIA GeForce RTX 4070 AD103 Comparison

AMD Instinct MI300 and NVIDIA GeForce RTX 4070 AD103 occupy opposite ends of the GPU spectrum, and the recorded data makes that split unmistakable. The MI300 is a data-center accelerator with no display outputs and a 600 W power target, while the RTX 4070 AD103 is a dual-slot consumer card at 200 W with HDMI and DisplayPort connectivity. The database shows both parts sit at the 50th percentile among all GPUs, but their benchmark results, or lack thereof, tell a more nuanced story. This analysis draws exclusively from the recorded specifications and compares the two directly where the data allows.

Head-to-Head Benchmarks

The head-to-head benchmark table for these two products is empty, meaning no direct comparative workload results exist in the database. This absence itself is informative. The MI300 lists zero benchmarks and an average benchmark score of zero, while the RTX 4070 AD103 also carries no recorded benchmark scores. With no wins recorded for either side, the comparison must rest on the raw computational metrics that the database does provide.

The most decisive numerical gap appears in raw throughput. The MI300 delivers 47.87 TFLOPS of FP32 performance, while the RTX 4070 AD103 delivers 29.15 TFLOPS. That places the MI300 64% ahead in single-precision floating-point compute. The same 47.87 TFLOPS applies to FP16 on the MI300 with a 1:1 ratio, whereas the RTX 4070 AD103 also lists 29.15 TFLOPS FP16 at 1:1. So the MI300 leads by the same margin in half-precision work.

Texture rate follows a similar pattern. The MI300 reaches 1,496.0 GTexel/s, compared to the RTX 4070 AD103's 455.4 GTexel/s. That is a 3.3x advantage for the MI300, reflecting its 880 texture mapping units against the RTX 4070's 184. Pixel rate flips the story entirely. The MI300 records 0 MPixel/s because it has zero raster operations units, while the RTX 4070 AD103 manages 158.4 GPixel/s from its 64 ROPs. Any workload that depends on pixel output cannot run on the MI300 at all.

Memory bandwidth shows another massive gap. The MI300 accesses 128 GB of HBM3 across an 8192-bit bus, yielding 5.32 TB/s. The RTX 4070 AD103 uses 12 GB of GDDR6X on a 192-bit bus for 504.2 GB/s. The MI300's bandwidth is 10.5x higher, which matters for large data sets, though the RTX 4070's smaller capacity and narrower bus are designed for consumer workloads. The MI300's memory clock runs at 1300 MHz with 5.2 Gbps effective speed, while the RTX 4070 AD103's memory clock is 1313 MHz at 21 Gbps effective.

Clock speeds show the RTX 4070 AD103 running far higher. Its base clock is 1920 MHz and boost reaches 2475 MHz. The MI300 sits at 1000 MHz base and 1700 MHz boost. The RTX 4070 AD103 boosts 46% higher, which partially compensates for its lower core count in latency-sensitive tasks. The MI300 compensates with 14,080 shading units versus 5,888 on the RTX 4070 AD103, a 2.4x core advantage.

Where Each One Wins

The MI300 wins in every metric tied to massive parallel compute and memory throughput. FP32 and FP16 performance, texture rate, memory bandwidth, memory capacity, and transistor count all favor the MI300. Its 153,000 million transistors on a 1017 mm² die dwarf the RTX 4070 AD103's 45,900 million on 379 mm². The MI300 also has a higher transistor density at 150.4M per mm² versus 121.1M per mm², meaning it packs more logic into each square millimeter despite the larger overall die.

The RTX 4070 AD103 wins in clock speed, pixel processing, power efficiency, and feature completeness for consumer use. It boosts to 2475 MHz versus 1700 MHz, and its 158.4 GPixel/s pixel rate is the only pixel output available between the two, since the MI300 has zero ROPs. The RTX 4070 AD103 also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI300 lists N/A for all three APIs. The RTX 4070 AD103 provides 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs; the MI300 has no outputs.

Power draw favors the RTX 4070 AD103 decisively. It lists a 200 W TDP and a suggested 550 W PSU, while the MI300 lists 600 W TDP and a suggested 1000 W PSU. The RTX 4070 AD103 uses a single 16-pin connector, the MI300 uses 2x 8-pin. The RTX 4070 AD103 is dual-slot with dimensions of 240 mm length, 110 mm height, and 40 mm width. The MI300 measures 267 mm by 111 mm with no width listed. The RTX 4070 AD103's 200 W TDP is one-third of the MI300's 600 W, making it the clear choice for constrained installations.

Architecture Differences

The two chips share a 5 nm process node and the same foundry, TSMC, but diverge completely in architecture. The MI300 uses CDNA 3.0 with the chip name Aqua Vanjaram, designed for Instinct (MIx) generation accelerators. The RTX 4070 AD103 uses Ada Lovelace architecture with the chip name AD103, part of the GeForce 40-series. The MI300's predecessor is Radeon Instinct, while the RTX 4070 AD103's predecessor is GeForce 30 and its successor is GeForce 50.

Core organization differs starkly. The MI300 has 14,080 shading units, 880 texture mapping units, and zero raster operations units. It lists no RT cores and no tensor cores in the database. The RTX 4070 AD103 has 5,888 shading units, 184 TMUs, 64 ROPs, 46 RT cores, and 184 tensor cores. The MI300's lack of ROPs and absence of RT/tensor core entries indicate a compute-first design with no graphics pipeline. The RTX 4070 AD103's RT and tensor core counts align with its consumer gaming and AI-accelerator roles.

Memory architecture shows a fundamental split. The MI300 uses HBM3 with 128 GB capacity, 8192-bit bus, and 5.32 TB/s bandwidth. The RTX 4070 AD103 uses GDDR6X with 12 GB capacity, 192-bit bus, and 504.2 GB/s bandwidth. The MI300's memory clock is 1300 MHz with 5.2 Gbps effective, while the RTX 4070 AD103's is 1313 MHz with 21 Gbps effective. The GDDR6X achieves higher per-pin data rates, but the MI300's 8192-bit bus provides 10.5x total bandwidth.

Interface differences reinforce the target markets. The MI300 uses PCIe 5.0 x16, while the RTX 4070 AD103 uses PCIe 4.0 x16. The MI300 has no display outputs; the RTX 4070 AD103 has 1x HDMI 2.1 and 3x DisplayPort 1.4a. The MI300 lists N/A for DirectX, OpenGL, and Vulkan support, while the RTX 4070 AD103 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300's 267 mm length and 111 mm height compare to the RTX 4070 AD103's 240 mm length, 110 mm height, and 40 mm width.

FAQ

Q: Which GPU has higher FP32 performance?

A: The AMD Instinct MI300 delivers 47.87 TFLOPS FP32, which is 64% higher than the NVIDIA GeForce RTX 4070 AD103's 29.15 TFLOPS.

Q: Can the MI300 render graphics or output video?

A: No. The MI300 has 0 MPixel/s pixel rate, zero ROPs, and no display outputs. It also lists N/A for DirectX, OpenGL, and Vulkan. The RTX 4070 AD103 has 158.4 GPixel/s pixel rate and 1x HDMI 2.1 plus 3x DisplayPort 1.4a outputs.

Q: What is the memory capacity difference?

A: The MI300 has 128 GB of HBM3 memory, while the RTX 4070 AD103 has 12 GB of GDDR6X. The MI300's 5.32 TB/s bandwidth is 10.5x the RTX 4070 AD103's 504.2 GB/s.

Q: Which card has higher clock speeds?

A: The RTX 4070 AD103 runs at 1920 MHz base and 2475 MHz boost. The MI300 runs at 1000 MHz base and 1700 MHz boost. The RTX 4070 AD103 boosts 46% higher.

Q: What are the power requirements?

A: The MI300 lists 600 W TDP with a suggested 1000 W PSU and 2x 8-pin connectors. The RTX 4070 AD103 lists 200 W TDP with a suggested 550 W PSU and 1x 16-pin connector.

Q: Do both GPUs support the same PCIe interface?

A: No. The MI300 uses PCIe 5.0 x16, while the RTX 4070 AD103 uses PCIe 4.0 x16.

Specification Differences

| Specification | AMD Instinct MI300 | NVIDIA GeForce RTX 4070 AD103 |

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

| Architecture | CDNA 3.0 | Ada Lovelace |

| Chip | Aqua Vanjaram | AD103 |

| Transistors | 153,000 million | 45,900 million |

| Die Size | 1017 mm² | 379 mm² |

| Transistor Density | 150.4M / mm² | 121.1M / mm² |

| Base Clock | 1000 MHz | 1920 MHz |

| Boost Clock | 1700 MHz | 2475 MHz |

| Memory Size | 128 GB | 12 GB |

| Memory Type | HBM3 | GDDR6X |

| Memory Bus Width | 8192 bit | 192 bit |

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

| Shading Units | 14080 | 5888 |

| TMUs | 880 | 184 |

| ROPs | 0 | 64 |

| RT Cores | None listed | 46 |

| Tensor Cores | None listed | 184 |

| Pixel Rate | 0 MPixel/s | 158.4 GPixel/s |

| Texture Rate | 1,496.0 GTexel/s | 455.4 GTexel/s |

| FP32 | 47.87 TFLOPS | 29.15 TFLOPS |

| FP16 | 47.87 TFLOPS (1:1) | 29.15 TFLOPS (1:1) |

| TDP | 600 W | 200 W |

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

| Suggested PSU | 1000 W | 550 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 |

| Dimensions | 267 mm x 111 mm | 240 mm x 110 mm x 40 mm |

| Release Date | 2023-01-03 | 2024-02-29 |

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

| Successor | Not listed | GeForce 50 |

The Verdict

The data separates these two products into completely different roles. The AMD Instinct MI300 is a compute accelerator with 47.87 TFLOPS FP32, 5.32 TB/s memory bandwidth, and 128 GB of HBM3. It has no graphics outputs, no ROPs, and no consumer API support. Any workload that requires rendering, video output, or pixel processing cannot use it. Its 600 W TDP and 1000 W suggested PSU indicate a server or data-center installation.

The NVIDIA GeForce RTX 4070 AD103 is a consumer graphics card with 29.15 TFLOPS FP32, 158.4 GPixel/s pixel rate, 46 RT cores, and 184 tensor cores. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and provides HDMI 2.1 and DisplayPort 1.4a outputs. Its 200 W TDP and 550 W suggested PSU fit standard desktop power supplies. Its production status is end-of-life, and its successor is listed as GeForce 50.

Users needing maximum compute throughput for large memory workloads should choose the MI300 based on its 10.5x bandwidth advantage and 3.3x texture rate lead. Users needing a functional graphics card with display output, rasterization, ray tracing, and a lower power footprint should choose the RTX 4070 AD103, which is the only one of the two that can render pixels at all. The MI300's 50th percentile rank and zero benchmark scores mean no measured performance data exists to validate real-world compute behavior, while the RTX 4070 AD103 likewise has no recorded benchmark scores. The specification sheet alone drives this verdict.