AMD Instinct MI300X vs NVIDIA GeForce RTX 4070 Ti SUPER Comparison

Where Each One Wins

The benchmark data reveals a stark divide between these two accelerators. The AMD Instinct MI300X wins the only directly comparable head-to-head test, the Geekbench OpenCL benchmark, with a score of 317,994 against the NVIDIA GeForce RTX 4070 Ti SUPER's 199,267. That is a 59.6% advantage for the AMD part, placing it in the 100th percentile of all GPUs in the database, while the RTX 4070 Ti SUPER sits in the 76th percentile.

The MI300X's nearest rivals in the database are all professional data center accelerators: the NVIDIA B200 (345,482, 8% ahead), the NVIDIA H200 NVL (334,891, 5% ahead), the NVIDIA L40S (295,763, 7.5% behind), and the NVIDIA RTX 6000 Ada Generation (287,237, 10.7% behind). This positioning confirms that the MI300X competes at the very top of the compute spectrum. The RTX 4070 Ti SUPER, by contrast, sits among workstation and consumer cards, with its nearest rivals being the NVIDIA TITAN RTX (31,676, 1.9% ahead), the NVIDIA RTX PRO 4500 Blackwell (31,532, 1.4% ahead), and the NVIDIA Quadro M5000 (31,206, 0.4% ahead). Its average benchmark score of 31,087 is nearly identical to those cards, indicating it is a mainstream performer rather than a compute flagship.

Where each one wins is largely a question of workload category. The MI300X is a compute-oriented accelerator with no display outputs, no DirectX, OpenGL, or Vulkan API support, and a 0 MPixel/s pixel rate. It is not designed for graphics at all. The RTX 4070 Ti SUPER, conversely, is a full graphics card with 96 ROPs, 66 ray tracing cores, DirectX 12 Ultimate support, OpenGL 4.6, Vulkan 1.4, and three display outputs. The database records a full suite of PassMark DirectX tests for the NVIDIA card, including scores of 360 in DirectX 9, 278 in DirectX 11, 181 in DirectX 10, and 119 in DirectX 12, plus a PassMark G3D score of 31,811. The AMD card has no such graphics scores recorded at all. So the MI300X wins in raw compute throughput, while the RTX 4070 Ti SUPER wins in any graphics, ray tracing, or display scenario.

Architecture Differences

The two cards diverge fundamentally at the architecture level. The MI300X uses AMD's CDNA 3.0 architecture on the Aqua Vanjaram chip, built on a 5 nm TSMC process. It packs 153,000 million transistors on a 1017 mm² die, yielding a transistor density of 150.4 million per square millimeter. The RTX 4070 Ti SUPER uses NVIDIA's Ada Lovelace architecture on the AD103 chip, also on a 5 nm TSMC process, but with 45,900 million transistors on a 379 mm² die, for a density of 121.1 million per square millimeter. The MI300X is thus a vastly larger chip with more than three times the transistor count.

Memory architecture differs completely. The MI300X uses 192 GB of HBM3 on an 8192-bit bus, delivering 5.32 TB/s of bandwidth. The RTX 4070 Ti SUPER uses 16 GB of GDDR6X on a 256-bit bus, delivering 672.3 GB/s. The AMD card has roughly eight times the memory capacity and nearly eight times the bandwidth. The memory clocks also differ: the MI300X runs at 1300 MHz with 5.2 Gbps effective, while the RTX 4070 Ti SUPER runs at 1313 MHz with 21 Gbps effective. The GDDR6X achieves higher per-pin data rates, but the HBM3's enormous bus width wins on aggregate throughput.

Compute resources are similarly lopsided. The MI300X has 19,456 shading units and 1,216 texture mapping units, with no ROPs. The RTX 4070 Ti SUPER has 8,448 shading units, 264 TMUs, and 96 ROPs. The MI300X delivers 81.72 TFLOPS of FP32 and FP16 (1:1), while the RTX 4070 Ti SUPER delivers 44.10 TFLOPS of both. The texture rate for the MI300X is 2,553.6 GTexel/s versus 689.0 GTexel/s for the NVIDIA card. The pixel rate is 0 for the AMD part and 250.6 GPixel/s for the NVIDIA part. The MI300X has no dedicated ray tracing cores or tensor cores listed, whereas the RTX 4070 Ti SUPER has 66 RT cores and 264 tensor cores.

Power and physical specs also differ sharply. The MI300X has a TDP of 750 W and is an OAM module with no power connectors and no display outputs. The RTX 4070 Ti SUPER has a TDP of 285 W, is a triple-slot card with a 1x 16-pin power connector, and measures 310 mm by 140 mm by 61 mm. The AMD card suggests a 1150 W PSU, the NVIDIA card suggests a 600 W PSU. The MI300X uses PCIe 5.0 x16, while the RTX 4070 Ti SUPER uses PCIe 4.0 x16.

FAQ

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

A: The AMD Instinct MI300X scores 317,994 in Geekbench OpenCL, which is 59.6% higher than the NVIDIA GeForce RTX 4070 Ti SUPER's 199,267.

Q: Can the MI300X output video to a display?

A: No. The MI300X has no display outputs and no graphics API support (DirectX, OpenGL, Vulkan are all N/A). The RTX 4070 Ti SUPER has 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs.

Q: How do the memory capacities compare?

A: The MI300X has 192 GB of HBM3 on an 8192-bit bus with 5.32 TB/s bandwidth. The RTX 4070 Ti SUPER has 16 GB of GDDR6X on a 256-bit bus with 672.3 GB/s bandwidth.

Q: What is the power requirement difference?

A: The MI300X has a 750 W TDP and suggests a 1150 W PSU. The RTX 4070 Ti SUPER has a 285 W TDP and suggests a 600 W PSU.

Q: Does the RTX 4070 Ti SUPER support ray tracing?

A: Yes, it has 66 ray tracing cores and supports DirectX 12 Ultimate. The MI300X has no ray tracing cores listed and no DirectX support.

Q: What is the transistor count difference?

A: The MI300X has 153,000 million transistors on a 1017 mm² die. The RTX 4070 Ti SUPER has 45,900 million transistors on a 379 mm² die.

Specification Differences

The two cards differ in nearly every measurable specification. The MI300X uses the CDNA 3.0 architecture with the Aqua Vanjaram chip, while the RTX 4070 Ti SUPER uses Ada Lovelace with the AD103 chip. Both are on 5 nm TSMC, but the MI300X has 153,000 million transistors versus 45,900 million, and a die size of 1017 mm² versus 379 mm². Transistor density is 150.4M per mm² for the AMD card and 121.1M per mm² for the NVIDIA card.

Clock speeds differ: the MI300X has a base clock of 1000 MHz and a boost of 2100 MHz, while the RTX 4070 Ti SUPER has a base of 2340 MHz and a boost of 2610 MHz. The NVIDIA card runs at higher clocks, but the AMD card has far more compute units. The memory clock is 1300 MHz (5.2 Gbps effective) for the MI300X and 1313 MHz (21 Gbps effective) for the RTX 4070 Ti SUPER.

Memory configuration is radically different: 192 GB HBM3 on 8192-bit bus with 5.32 TB/s bandwidth versus 16 GB GDDR6X on 256-bit bus with 672.3 GB/s. Shading units are 19,456 versus 8,448. TMUs are 1,216 versus 264. ROPs are 0 versus 96. The MI300X has no RT cores or tensor cores listed; the RTX 4070 Ti SUPER has 66 RT cores and 264 tensor cores. Pixel rate is 0 MPixel/s versus 250.6 GPixel/s. Texture rate is 2,553.6 GTexel/s versus 689.0 GTexel/s. FP32 and FP16 are 81.72 TFLOPS versus 44.10 TFLOPS.

TDP is 750 W versus 285 W. The MI300X is an OAM Module with no power connectors and no display outputs; the RTX 4070 Ti SUPER is a triple-slot card with a 1x 16-pin connector and three display outputs. Suggested PSU is 1150 W versus 600 W. Bus interface is PCIe 5.0 x16 versus PCIe 4.0 x16. The MI300X has no API support (DirectX, OpenGL, Vulkan all N/A), while the RTX 4070 Ti SUPER supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. Dimensions are not listed for the AMD card; the NVIDIA card is 310 mm by 140 mm by 61 mm. Release dates differ: December 5, 2023 for the MI300X and January 23, 2024 for the RTX 4070 Ti SUPER. The NVIDIA card is marked end-of-life with a successor in the GeForce 50 series; the AMD card lists the Radeon Instinct as predecessor.

Head-to-Head Benchmarks

The database records only one direct head-to-head benchmark between these two cards: Geekbench OpenCL. The AMD Instinct MI300X scores 317,994, while the NVIDIA GeForce RTX 4070 Ti SUPER scores 199,267. The delta is 59.6% in favor of the MI300X. This is the sole win for AMD, giving it a 1-0 record in direct comparisons.

The magnitude of this win is substantial. A 59.6% lead in a compute benchmark aligns with the architectural differences: the MI300X has 19,456 shading units versus 8,448, more than double, and delivers 81.72 TFLOPS of FP32 versus 44.10, roughly 85% higher. The memory bandwidth gap is even larger, with 5.32 TB/s versus 672.3 GB/s, nearly an eight-fold difference. These factors compound in OpenCL workloads that stress both compute and memory.

The RTX 4070 Ti SUPER has no recorded direct benchmark wins against the MI300X. However, its benchmark suite shows strengths in graphics-specific tests. Its PassMark G3D score is 31,811, its PassMark GPU Compute score is 18,372, and it records scores in DirectX 9 (360), DirectX 11 (278), DirectX 10 (181), and DirectX 12 (119), plus a PassMark G2D score of 1,225. None of these tests are available for the MI300X, which lacks graphics API support entirely. The NVIDIA card also scores 53,683 in Geekbench Vulkan, a test that cannot run on the AMD accelerator.

The percentile data reinforces the divide. The MI300X sits in the 100th percentile of all GPUs in the database, meaning it outperforms or matches every other recorded GPU in its tested workload. Its nearest rivals are the B200, H200 NVL, L40S, and RTX 6000 Ada Generation, all data center parts. The RTX 4070 Ti SUPER sits in the 76th percentile, with nearest rivals being workstation and older flagship cards like the TITAN RTX and RTX PRO 4500 Blackwell. The average benchmark score of the MI300X is 317,994, while the RTX 4070 Ti SUPER averages 31,087 across its ten recorded tests, a roughly ten-fold difference in aggregate score.

In practical terms, the data indicates that the MI300X dominates in compute-bound, memory-heavy workloads that fit within its 192 GB HBM3 pool. The RTX 4070 Ti SUPER, with its 96 ROPs, 66 RT cores, and full graphics API stack, handles rendering, ray tracing, and display tasks that the MI300X cannot perform. The 285 W TDP and PCIe 4.0 interface make the NVIDIA card far easier to integrate into a standard workstation, while the 750 W OAM module requires a server platform. The release dates are close, with the MI300X arriving December 5, 2023 and the RTX 4070 Ti SUPER on January 23, 2024, but their target markets are almost entirely disjoint. The MI300X is a compute accelerator with no graphics path, and the RTX 4070 Ti SUPER is a graphics card with limited compute scale. The single head-to-head result simply confirms that in the one test both can run, the data center part wins decisively.