AMD Instinct MI300 vs NVIDIA GeForce RTX 5070 Ti Comparison

AMD Instinct MI300 and NVIDIA GeForce RTX 5070 Ti occupy different corners of the GPU landscape. The MI300 is a data-center compute accelerator built for massive memory workloads, while the RTX 5070 Ti is a consumer graphics card with full display and API support. Benchmark records show no direct head-to-head tests between the two, so the comparison relies on their respective specification sheets and, for the RTX 5070 Ti, its recorded performance scores.

FAQ

Q: What is the core architecture difference between the two GPUs?

A: The AMD Instinct MI300 uses the CDNA 3.0 architecture, designed for compute acceleration, while the NVIDIA GeForce RTX 5070 Ti uses the Blackwell 2.0 architecture, a consumer-focused design with graphics and ray tracing support.

Q: How much memory does each GPU have?

A: The MI300 has 128 GB of HBM3 memory with a 8192-bit bus and 5.32 TB/s bandwidth. The RTX 5070 Ti has 16 GB of GDDR7 memory with a 256-bit bus and 896.0 GB/s bandwidth.

Q: Which GPU has higher FP32 compute performance?

A: The MI300 delivers 47.87 TFLOPS of FP32 compute, while the RTX 5070 Ti delivers 43.94 TFLOPS. The MI300 leads by approximately 3.93 TFLOPS.

Q: Does the RTX 5070 Ti support ray tracing?

A: Yes, the RTX 5070 Ti has 70 ray tracing cores and 280 tensor cores. The MI300 has no ray tracing cores or tensor cores listed in the database.

Q: What is the power consumption of each GPU?

A: The MI300 has a TDP of 600 W, while the RTX 5070 Ti has a TDP of 300 W. The MI300 also requires a 1000 W suggested PSU, while the RTX 5070 Ti suggests a 700 W PSU.

Q: Which GPU has better percentile ranking among all GPUs?

A: The RTX 5070 Ti ranks in the 86th percentile, with an average benchmark score of 49,957 points. The MI300 has no benchmark scores recorded and sits at the 50th percentile with a zero average score.

Where Each One Wins

The AMD Instinct MI300 wins on raw memory capacity and bandwidth. Its 128 GB of HBM3 memory dwarfs the 16 GB of GDDR7 on the RTX 5070 Ti. The 5.32 TB/s memory bandwidth is over five times higher than the 896.0 GB/s on the NVIDIA part. For workloads that require holding massive datasets on-chip, such as large language model inference or scientific simulation, the MI300 provides a clear advantage. Its 8192-bit memory bus further emphasizes the focus on data movement rather than graphics throughput.

The NVIDIA GeForce RTX 5070 Ti wins on graphics features and real-world benchmark presence. It has 70 ray tracing cores and 280 tensor cores, enabling hardware-accelerated ray tracing and AI processing. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI300 lists no API support at all. The RTX 5070 Ti also has display outputs: 1x HDMI 2.1b and 3x DisplayPort 2.1b, whereas the MI300 has no outputs. The recorded benchmark scores for the RTX 5070 Ti include a PassMark G3D score of 32,974 and a Geekbench Vulkan score of 225,122, indicating measurable performance in graphics and compute tests.

The MI300 wins on texture rate. It delivers 1,496.0 GTexel/s compared to 686.6 GTexel/s for the RTX 5070 Ti. This 2.2x advantage in texture fill indicates stronger throughput for texture-heavy compute tasks. The MI300 also has more shading units: 14,080 versus 8,960, and more texture mapping units: 880 versus 280.

Architecture Differences

The MI300 uses the CDNA 3.0 architecture, a compute-focused design that omits graphics-specific features. Its chip, codenamed Aqua Vanjaram, is built on a 5 nm process at TSMC with 153,000 million transistors on a 1017 mm² die. The transistor density is 150.4 million per mm². The architecture prioritizes memory bandwidth and raw compute, evident in the 5.32 TB/s bandwidth and 47.87 TFLOPS FP32 throughput.

The RTX 5070 Ti uses the Blackwell 2.0 architecture, built on the GB203 chip. It is also fabricated on a 5 nm process at TSMC, but with 45,600 million transistors on a 378 mm² die. The transistor density is 120.6 million per mm². The Blackwell architecture includes dedicated ray tracing cores and tensor cores, plus a full graphics pipeline with pixel rate of 235.4 GPixel/s and 96 ROPs. The MI300 has zero ROPs and a pixel rate of 0 MPixel/s, confirming its lack of rasterization hardware.

The MI300’s FP16 compute is listed as 47.87 TFLOPS with a 1:1 ratio to FP32, meaning it does not double throughput in half precision. The RTX 5070 Ti also lists FP16 at 43.94 TFLOPS with a 1:1 ratio. Both GPUs use the same ratio, but the MI300 maintains a slight edge in raw FP16 throughput.

Memory technology differs significantly. The MI300 uses HBM3, a stacked memory design with 128 GB capacity. The RTX 5070 Ti uses GDDR7, a discrete memory type with 16 GB capacity. The MI300’s memory clock is 1300 MHz with 5.2 Gbps effective, while the RTX 5070 Ti runs at 1750 MHz with 28 Gbps effective. Despite the higher effective clock on the NVIDIA card, the MI300’s much wider bus yields far higher total bandwidth.

Specification Differences

The two GPUs differ in nearly every measurable specification. The MI300 has a base clock of 1000 MHz and a boost clock of 1700 MHz. The RTX 5070 Ti has a base clock of 2295 MHz and a boost clock of 2452 MHz. The NVIDIA card runs at substantially higher clocks, but the MI300 compensates with more parallel hardware.

Shading units: 14,080 on the MI300 versus 8,960 on the RTX 5070 Ti. Texture mapping units: 880 versus 280. ROPs: 0 versus 96. Ray tracing cores: none versus 70. Tensor cores: none versus 280. Pixel rate: 0 MPixel/s versus 235.4 GPixel/s. Texture rate: 1,496.0 GTexel/s versus 686.6 GTexel/s.

Power and physical design also differ. The MI300 has a TDP of 600 W and requires 2x 8-pin power connectors. The RTX 5070 Ti has a TDP of 300 W and uses a single 16-pin connector. The MI300 measures 267 mm in length and 111 mm in height. The RTX 5070 Ti is 304 mm long, 137 mm high, and 48 mm wide, with a dual-slot form factor. The MI300 has no listed slot width.

The MI300 uses a PCIe 5.0 x16 interface, as does the RTX 5070 Ti. The MI300 has no display outputs, while the RTX 5070 Ti has 1x HDMI 2.1b and 3x DisplayPort 2.1b. The MI300 lists no API support, while the RTX 5070 Ti supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Release dates differ by over two years. The MI300 launched on 2023-01-03, while the RTX 5070 Ti launched on 2025-02-19. The MI300’s predecessor is Radeon Instinct, and the RTX 5070 Ti’s predecessor is GeForce 40. The RTX 5070 Ti has an active production status and a listed successor, GeForce 60. The MI300 has no production status or successor listed. The RTX 5070 Ti has a launch MSRP of 749 USD.

The Verdict

The data indicates that the AMD Instinct MI300 is designed for compute-heavy tasks that demand enormous memory capacity and bandwidth. Its 128 GB HBM3 pool and 5.32 TB/s bandwidth are unmatched by the RTX 5070 Ti. For workloads such as large-scale data processing, AI model training, or scientific computing, the MI300 provides the necessary resources. Its higher FP32 throughput of 47.87 TFLOPS also gives it a slight edge in raw compute density.

The NVIDIA GeForce RTX 5070 Ti is built for interactive graphics and consumer applications. The presence of ray tracing cores, tensor cores, display outputs, and full DirectX, OpenGL, and Vulkan support makes it a complete graphics solution. Its benchmark scores, including an average of 49,957 points and an 86th percentile ranking, confirm that it performs well in real-world tests. The MI300 has no recorded benchmarks, so its performance is only theoretical.

The choice depends on the workload. For server rooms without displays, the MI300 offers a massive memory advantage and higher texture rate. For desktop use with monitors and gaming, the RTX 5070 Ti is the only option with graphics output and API compatibility. The MI300’s 600 W TDP and 1000 W suggested PSU also require more power infrastructure than the RTX 5070 Ti’s 300 W TDP and 700 W suggested PSU.

Head-to-Head Benchmarks

No direct head-to-head benchmark results exist in the database. The MI300 has an empty benchmark list and zero wins. The RTX 5070 Ti has ten recorded benchmark scores and zero wins in any head-to-head comparison against the MI300.

The RTX 5070 Ti’s strongest recorded scores include a Geekbench Vulkan result of 225,122 and a Geekbench OpenCL result of 212,363. Its 3DMark Steel Nomad DX12 score is 6,604. PassMark results vary by API version: DirectX 9 scores 351, DirectX 11 scores 300, DirectX 10 scores 192, and DirectX 12 scores 127. The PassMark G2D score is 1,332, the G3D score is 32,974, and the GPU compute score is 20,203.

The MI300 has no comparable scores, so the RTX 5070 Ti wins all recorded benchmark comparisons by default. In terms of theoretical specifications, the MI300 leads in FP32 compute by 3.93 TFLOPS, texture rate by 809.4 GTexel/s, memory capacity by 112 GB, and memory bandwidth by 4.42 TB/s. The RTX 5070 Ti leads in core clocks, pixel rate, and the presence of ray tracing and tensor cores.

The nearest rivals for the RTX 5070 Ti provide context for its average score. The AMD Radeon RX Vega 64 scores 50,001, which is 0.1% higher than the RTX 5070 Ti’s 49,957. The Intel Arc A550M scores 49,737, which is 0.4% lower. The AMD Radeon RX 6900 XT scores 50,951, which is 2% higher. The AMD Radeon RX 6800 XT scores 48,477, which is 3.1% lower. These deltas show that the RTX 5070 Ti sits within a tight performance band around 50,000 points, slightly below the RX Vega 64 and RX 6900 XT, slightly above the Arc A550M and RX 6800 XT.