AMD Instinct MI355X vs NVIDIA GeForce RTX 5070 Ti SUPER Comparison

Where Each One Wins

The AMD Instinct MI355X and NVIDIA GeForce RTX 5070 Ti SUPER occupy entirely different positions in the database. The MI355X is an accelerator module with no display outputs, no graphics API support, and a benchmark profile that shows zero recorded results. Its percentile rank sits at 50, placing it in the middle of the database distribution, though that ranking is based on a complete absence of measured scores. The RTX 5070 Ti SUPER, by contrast, is a conventional graphics card with a full suite of display outputs, DirectX 12 Ultimate support, and one recorded benchmark entry.

The RTX 5070 Ti SUPER wins on every measurable performance dimension in this comparison. It holds a 36th percentile rank across all GPUs, and its single benchmark score of 6269.5 in 3DMark Steel Nomad DX12 places it essentially level with its nearest rival, the NVIDIA GeForce RTX 4070 Ti SUPER AD102, which averages 6270. The MI355X has no benchmark entries, no wins in any head-to-head test, and an average benchmark score of zero. In terms of user-facing graphics performance, the RTX 5070 Ti SUPER is the only one of the two that can be evaluated at all.

The MI355X wins in areas that are not directly benchmarkable through standard graphics tests. It carries 288 GB of HBM3e memory, which is 18 times the RTX 5070 Ti SUPER's 16 GB of GDDR7. Memory bandwidth stands at 8.19 TB/s versus 896.0 GB/s, a factor of roughly 9.1. The MI355X also provides 78.64 TFLOPS of FP32 and FP16 compute, compared to 43.94 TFLOPS for both precision levels on the RTX 5070 Ti SUPER. These figures indicate the MI355X is built for high-throughput compute workloads rather than rasterized graphics, which explains why it has no graphics API support and no display outputs.

FAQ

Q: Which GPU has higher FP32 compute throughput?

A: The AMD Instinct MI355X delivers 78.64 TFLOPS of FP32, while the NVIDIA GeForce RTX 5070 Ti SUPER provides 43.94 TFLOPS. The MI355X is 79% higher in raw FP32 throughput.

Q: How do the memory capacities differ?

A: The MI355X has 288 GB of HBM3e, while the RTX 5070 Ti SUPER has 16 GB of GDDR7. The MI355X provides 18 times the memory capacity.

Q: Does the MI355X support DirectX or Vulkan?

A: No. The MI355X lists N/A for DirectX, OpenGL, and Vulkan. The RTX 5070 Ti SUPER supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the power draw difference?

A: The MI355X has a TDP of 1400 W, while the RTX 5070 Ti SUPER has a TDP of 350 W. The RTX 5070 Ti SUPER draws 75% less power.

Q: Which GPU has a higher percentile ranking in the database?

A: The MI355X ranks at the 50th percentile, while the RTX 5070 Ti SUPER ranks at the 36th percentile. However, the MI355X has no recorded benchmark scores, so its percentile reflects an absence of data rather than measured performance.

Q: What is the transistor density on each chip?

A: The MI355X uses a 3 nm process with 185,000 million transistors on a 2380 mm² die, yielding 77.7 million transistors per mm². The RTX 5070 Ti SUPER uses a 5 nm process with 45,600 million transistors on a 378 mm² die, yielding 120.6 million transistors per mm².

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the AMD Instinct MI355X and the NVIDIA GeForce RTX 5070 Ti SUPER. The wins counter shows zero for both sides. This is consistent with the MI355X having no recorded benchmarks whatsoever, while the RTX 5070 Ti SUPER has exactly one benchmark entry.

The RTX 5070 Ti SUPER's single recorded score comes from 3DMark Steel Nomad DX12, where it achieves 6269.5. Its average benchmark score is 6270. The nearest rival comparison places this result in context. The NVIDIA GeForce RTX 4070 Ti SUPER AD102 averages 6270, giving the RTX 5070 Ti SUPER a delta of 0%, meaning they perform identically in this test. The AMD FirePro W600 averages 6223, which is 0.8% lower, while the NVIDIA Quadro K620 averages 6282, which is 0.2% higher, and the AMD Radeon R7 M350 averages 6327, which is 0.9% higher. These deltas are all within a single percentage point, indicating that the RTX 5070 Ti SUPER sits in a tightly clustered performance band near the top of its immediate comparisons.

The MI355X cannot be placed in this cluster because it has no equivalent benchmark data. Its compute specifications suggest it would outperform the RTX 5070 Ti SUPER in non-graphics workloads, but the database does not provide a direct measurement. The FP32 figure of 78.64 TFLOPS versus 43.94 TFLOPS, the FP16 figure of 78.64 TFLOPS versus 43.94 TFLOPS, and the texture rate of 2,457.6 GTexel/s versus 686.6 GTexel/s all point to a large compute advantage, but these are specification comparisons, not benchmark results.

Specification Differences

The two devices diverge sharply across nearly every specification field. The MI355X uses a 3 nm process node from TSMC, while the RTX 5070 Ti SUPER uses a 5 nm process node, also from TSMC. Transistor counts differ by a factor of four: 185,000 million for the MI355X versus 45,600 million for the RTX 5070 Ti SUPER. Die size is 2380 mm² versus 378 mm². Despite the smaller process node, the RTX 5070 Ti SUPER achieves a higher transistor density at 120.6M per mm², compared to 77.7M per mm² for the MI355X.

Clock speeds show a different relationship. The RTX 5070 Ti SUPER has a base clock of 2295 MHz and a boost clock of 2452 MHz. The MI355X has a base clock of 1000 MHz and a boost clock of 2400 MHz. The RTX 5070 Ti SUPER's base clock is 130% higher, though the boost clocks are within 2.2% of each other.

Memory subsystems are radically different. The MI355X uses 288 GB of HBM3e on an 8192-bit bus, achieving 8.19 TB/s of bandwidth. The RTX 5070 Ti SUPER uses 16 GB of GDDR7 on a 256-bit bus, achieving 896.0 GB/s. Memory clock rates are listed as 2000 MHz (8 Gbps effective) for the MI355X and 1750 MHz (28 Gbps effective) for the RTX 5070 Ti SUPER.

The compute unit counts also differ. The MI355X has 16,384 shading units, 1,024 TMUs, and zero ROPs, with a pixel rate of 0 MPixel/s. The RTX 5070 Ti SUPER has 8,960 shading units, 280 TMUs, and 96 ROPs, with a pixel rate of 235.4 GPixel/s. The MI355X has no RT cores and no tensor cores listed, while the RTX 5070 Ti SUPER has 70 RT cores and 280 tensor cores.

Physical specifications are equally distinct. The MI355X is an OAM module measuring 102 mm by 165 mm, with no power connectors and no display outputs. The RTX 5070 Ti SUPER is a dual-slot card measuring 304 mm by 137 mm by 48 mm, with one 16-pin power connector and outputs including 1x HDMI 2.1b and 3x DisplayPort 2.1b. Power draw is 1400 W for the MI355X and 350 W for the RTX 5070 Ti SUPER. The MI355X lists a suggested PSU of 1800 W, while the RTX 5070 Ti SUPER does not list one.

Release dates differ by roughly six months. The MI355X was released on 2025-06-11, while the RTX 5070 Ti SUPER is dated 2025-12-31. The RTX 5070 Ti SUPER has a production status of Active, while the MI355X does not list one. The RTX 5070 Ti SUPER has a launch MSRP of 749 USD.

Architecture Differences

The MI355X is built on CDNA 4.0 architecture, the latest in AMD's Instinct (MIx) generation, using the MI350 256CU chip. It represents the Radeon Instinct predecessor line. The architecture is compute-focused, which explains the absence of graphics APIs, display outputs, and ROPs. The zero pixel rate and zero ROP count confirm that this chip does not rasterize graphics at all. Its 16,384 shading units and 1,024 TMUs feed a texture rate of 2,457.6 GTexel/s, but without pixel output, these resources serve general compute and data center workloads.

The RTX 5070 Ti SUPER is built on Blackwell 2.0 architecture, part of the GeForce 50-series, using the GB203 chip. It is a conventional graphics architecture with full rasterization support. The 96 ROPs produce a pixel rate of 235.4 GPixel/s, and the 280 TMUs produce a texture rate of 686.6 GTexel/s. The 70 RT cores provide hardware ray tracing, and the 280 tensor cores provide AI acceleration. The architecture supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, covering the full range of modern graphics APIs.

The transistor density difference is notable. The RTX 5070 Ti SUPER packs 120.6M transistors per mm², which is 55% denser than the MI355X's 77.7M per mm², even though the MI355X uses a smaller 3 nm node. This suggests the MI355X's massive 2380 mm² die allocates more area to memory controllers and interconnects for its 8192-bit HBM3e interface, rather than logic density. The RTX 5070 Ti SUPER's 378 mm² die is far smaller and relies on a 256-bit GDDR7 interface.

The MI355X's memory architecture is built for bandwidth over capacity per pin. The 8.19 TB/s bandwidth is achieved through HBM3e, which stacks memory vertically and uses an extremely wide bus. The RTX 5070 Ti SUPER's GDDR7 uses a narrower bus but a higher effective clock of 28 Gbps, delivering 896.0 GB/s. Neither approach is inherently superior, but they serve different workload profiles: the MI355X targets memory-bound data center tasks, while the RTX 5070 Ti SUPER targets latency-sensitive gaming and graphics workloads.

The Verdict

The data shows two devices with no meaningful overlap. The AMD Instinct MI355X has no recorded benchmarks, no graphics capabilities, and no display outputs. Its 288 GB of HBM3e memory, 8.19 TB/s bandwidth, and 78.64 TFLOPS of FP32 compute position it as a data center accelerator for large-scale compute workloads. Its 1400 W TDP and OAM module form factor reinforce this classification. The database cannot evaluate its graphics performance because it has none.

The NVIDIA GeForce RTX 5070 Ti SUPER is a conventional graphics card with a full feature set. Its single benchmark score of 6269.5 in 3DMark Steel Nomad DX12 places it within 1% of several rivals, including a 0% delta against the RTX 4070 Ti SUPER AD102. Its 350 W TDP, dual-slot design, and display outputs make it suitable for desktop systems. Its 43.94 TFLOPS of FP32 compute is less than the MI355X, but its 96 ROPs, 70 RT cores, and 280 tensor cores provide capabilities the MI355X entirely lacks.

For a user seeking graphics performance, benchmark scores, or API support, the RTX 5070 Ti SUPER is the only viable option. For a user seeking maximum memory capacity, memory bandwidth, or raw FP32 throughput, the MI355X has the specification advantage, but the database records no measured performance to confirm how that advantage translates into real workloads. The RTX 5070 Ti SUPER holds the only recorded benchmark win, and it is the only device of the two with any performance data at all.