AMD Instinct MI300X vs NVIDIA RTX 5880 Ada Generation Comparison

Head-to-Head Benchmarks

The recorded data shows a single shared benchmark between the AMD Instinct MI300X and the NVIDIA RTX 5880 Ada Generation: Geekbench OpenCL. The NVIDIA RTX 5880 Ada Generation wins this comparison with a score of 326,898 against the AMD Instinct MI300X's 317,994, a delta of 2.7 percent. This is a narrow margin, indicating that in raw OpenCL compute throughput, the two accelerators are closely matched despite their very different designs.

The AMD Instinct MI300X's single recorded benchmark score of 317,994 places it in the 100th percentile of all GPUs in the database. Its nearest rivals include the NVIDIA B200 at 345,482 (8 percent ahead), the NVIDIA H200 NVL at 334,891 (5 percent ahead), the NVIDIA L40S at 295,763 (7.5 percent behind), and the NVIDIA RTX 6000 Ada Generation at 287,237 (10.7 percent behind). This positioning shows that the MI300X sits in the upper tier of database results, competitive with NVIDIA's flagship accelerators.

The NVIDIA RTX 5880 Ada Generation's average benchmark score of 45,972 reflects its multiple Passmark entries, which drag down its aggregate. Its Geekbench OpenCL score of 326,898 is the strongest single metric recorded. The RTX 5880 Ada Generation holds the 85th percentile among all GPUs in the database. Its nearest rivals by average score are the NVIDIA RTX A2000 at 46,043 (0.2 percent ahead), the Intel Arc A730M at 45,592 (0.8 percent behind), the AMD Radeon Pro 5500 XT at 45,384 (1.3 percent behind), and the AMD Radeon RX 5600M at 46,601 (1.4 percent ahead). These rivals are all far less powerful in absolute terms, which suggests the RTX 5880 Ada Generation's average score is heavily weighted by its Passmark DirectX results, not its OpenCL capability.

The head-to-head delta of 2.7 percent is within the range of run-to-run variance for many accelerators. The data confirms that neither card dominates the other in this single test. The RTX 5880 Ada Generation's win is real but slim, and the interpretation should center on parity rather than superiority.

Where Each One Wins

The AMD Instinct MI300X wins in scenarios that demand massive memory capacity and bandwidth. Its 192 GB of HBM3 memory with an 8192-bit bus delivers 5.32 TB/s of bandwidth. This configuration is built for large model inference and training workloads where the entire dataset or model weights must reside on the accelerator. The MI300X's FP32 throughput of 81.72 TFLOPS and FP16 throughput of 81.72 TFLOPS (1:1) exceed the RTX 5880 Ada Generation's respective 69.27 TFLOPS figures. The MI300X also leads in texture rate at 2,553.6 GTexel/s versus 1,082.4 GTexel/s, a clear indicator of compute density advantage.

The NVIDIA RTX 5880 Ada Generation wins in conventional graphics and workstation tasks. It has 176 ROPs and a pixel rate of 433.0 GPixel/s, while the MI300X records 0 MPixel/s and 0 ROPs, meaning it has no rasterization capability at all. The RTX 5880 Ada Generation also includes 110 RT cores and 440 tensor cores, features entirely absent from the MI300X's specification sheet. The RTX 5880 Ada Generation supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI300X lists N/A for all three APIs. The RTX 5880 Ada Generation provides four DisplayPort 1.4a outputs; the MI300X has no display outputs.

The Passmark entries for the RTX 5880 Ada Generation reveal its graphics-oriented strengths: Passmark G3D score of 25,096, G2D score of 777, GPU compute score of 14,208, and DirectX 9/10/11/12 scores of 335, 167, 228, and 70 respectively. The MI300X has no comparable graphics benchmark data, reinforcing that its purpose is compute acceleration, not rendering.

Architecture Differences

The AMD Instinct MI300X uses the CDNA 3.0 architecture with the Aqua Vanjaram chip, built on a 5 nm process at TSMC. It contains 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4 million per mm². The chip has 19,456 shading units, 1,216 TMUs, and 0 ROPs. Its base clock is 1000 MHz with a boost clock of 2100 MHz, and its memory runs at 1300 MHz with 5.2 Gbps effective. The memory subsystem uses HBM3 across an 8192-bit bus, achieving 5.32 TB/s bandwidth. The MI300X is designed as an OAM module, consumes 750 W, has no power connectors of its own, and recommends a 1150 W power supply. It connects via PCIe 5.0 x16 and has no display outputs. Its release date is recorded as December 5, 2023, and its predecessor is the Radeon Instinct.

The NVIDIA RTX 5880 Ada Generation uses the Ada Lovelace architecture with the AD102 chip, also built on a 5 nm process at TSMC but with 76,300 million transistors on a 609 mm² die, giving a density of 125.3 million per mm². The chip has 14,080 shading units, 440 TMUs, 176 ROPs, 110 RT cores, and 440 tensor cores. Base clock is 975 MHz with a boost clock of 2460 MHz. Memory runs at 2250 MHz with 18 Gbps effective, using GDDR6 across a 384-bit bus for 864.0 GB/s bandwidth. The RTX 5880 Ada Generation is a dual-slot card, 267 mm long and 112 mm tall, with a single 16-pin power connector and a 600 W suggested PSU. It uses PCIe 4.0 x16, provides four DisplayPort 1.4a outputs, and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. Its release date is January 4, 2024, its predecessor is Workstation Ampere, its successor is Blackwell PRO W, and its production status is Active.

The transistor count difference is stark: the MI300X packs 153,000 million transistors versus 76,300 million for the RTX 5880 Ada Generation. The die size difference of 1017 mm² versus 609 mm² explains the transistor density advantage of 150.4M/mm² over 125.3M/mm². The MI300X's HBM3 memory at 5.32 TB/s is 6.2 times the bandwidth of the RTX 5880 Ada Generation's GDDR6 at 864.0 GB/s. The memory capacity difference is fourfold: 192 GB versus 48 GB.

The Verdict

The data directs different buyers to each card. The AMD Instinct MI300X is the choice for large-scale compute workloads where memory capacity and bandwidth are the limiting factors. Its 192 GB HBM3 pool and 5.32 TB/s bandwidth dwarf the RTX 5880 Ada Generation's 48 GB and 864.0 GB/s. Its FP32 and FP16 throughput of 81.72 TFLOPS, higher than the RTX 5880 Ada Generation's 69.27 TFLOPS, confirms a compute advantage. However, the MI300X cannot render graphics, has no display outputs, no RT cores, no tensor cores, and no graphics API support. Its 750 W power draw and OAM form factor require specialized server infrastructure, and its 1150 W suggested PSU reflects that requirement.

The NVIDIA RTX 5880 Ada Generation is the choice for workstation tasks that blend compute with visualization. Its 176 ROPs, 433.0 GPixel/s pixel rate, 110 RT cores, and 440 tensor cores enable real-time ray tracing and AI-accelerated workflows. Its 2460 MHz boost clock is higher than the MI300X's 2100 MHz, and its 285 W power draw with a 600 W suggested PSU makes it deployable in standard workstations. The four DisplayPort 1.4a outputs support multi-monitor setups. The RTX 5880 Ada Generation's Geekbench OpenCL victory, though narrow, demonstrates that its compute capability is not far behind despite the MI300X's larger transistor budget.

The MI300X's 100th percentile ranking and its rival deltas (within 8 percent of the B200 and H200 NVL) place it among the fastest compute accelerators in the database. The RTX 5880 Ada Generation's 85th percentile ranking reflects its mixed benchmark suite but its OpenCL score alone would rank much higher. The data does not support a single "best" card; it supports two purpose-built accelerators for different domains.

FAQ

Q: Which card has higher FP32 compute throughput?

A: The AMD Instinct MI300X delivers 81.72 TFLOPS FP32, while the NVIDIA RTX 5880 Ada Generation delivers 69.27 TFLOPS FP32.

Q: Can the AMD Instinct MI300X output video to displays?

A: No. The MI300X has no display outputs and lists N/A for DirectX, OpenGL, and Vulkan support.

Q: What is the memory bandwidth difference?

A: The MI300X has 5.32 TB/s bandwidth from HBM3 on an 8192-bit bus, versus 864.0 GB/s from GDDR6 on a 384-bit bus for the RTX 5880 Ada Generation.

Q: Does the RTX 5880 Ada Generation support ray tracing?

A: Yes. It includes 110 RT cores and 440 tensor cores, plus DirectX 12 Ultimate support.

Q: Which card has a higher boost clock?

A: The NVIDIA RTX 5880 Ada Generation boosts to 2460 MHz, compared to the MI300X's 2100 MHz boost.

Q: What is the power consumption difference?

A: The MI300X has a 750 W TDP with a 1150 W suggested PSU, while the RTX 5880 Ada Generation has a 285 W TDP with a 600 W suggested PSU.

Specification Differences

| Field | AMD Instinct MI300X | NVIDIA RTX 5880 Ada Generation |

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

| Architecture | CDNA 3.0 | Ada Lovelace |

| Chip | Aqua Vanjaram | AD102 |

| Transistors | 153,000 million | 76,300 million |

| Die Size | 1017 mm² | 609 mm² |

| Transistor Density | 150.4M / mm² | 125.3M / mm² |

| Base Clock | 1000 MHz | 975 MHz |

| Boost Clock | 2100 MHz | 2460 MHz |

| Memory Clock | 1300 MHz 5.2 Gbps effective | 2250 MHz 18 Gbps effective |

| Memory Size | 192 GB | 48 GB |

| Memory Type | HBM3 | GDDR6 |

| Memory Bus Width | 8192 bit | 384 bit |

| Memory Bandwidth | 5.32 TB/s | 864.0 GB/s |

| Shading Units | 19,456 | 14,080 |

| TMUs | 1,216 | 440 |

| ROPs | 0 | 176 |

| RT Cores | N/A | 110 |

| Tensor Cores | N/A | 440 |

| Pixel Rate | 0 MPixel/s | 433.0 GPixel/s |

| Texture Rate | 2,553.6 GTexel/s | 1,082.4 GTexel/s |

| FP32 | 81.72 TFLOPS | 69.27 TFLOPS |

| FP16 | 81.72 TFLOPS (1:1) | 69.27 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 | 4x DisplayPort 1.4a |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | N/A | 267 mm 10.5 inches, 112 mm 4.4 inches |

| Production Status | N/A | Active |

| Release Date | 2023-12-05 | 2024-01-04 |

| Predecessor | Radeon Instinct | Workstation Ampere |

| Successor | N/A | Blackwell PRO W |