AMD Radeon Instinct MI300A vs NVIDIA GeForce RTX 5080 SUPER Comparison

The AMD Radeon Instinct MI300A and NVIDIA GeForce RTX 5080 SUPER occupy opposite ends of the hardware spectrum. The database records show an accelerator with no display outputs and a massive memory pool against a consumer graphics card with active production status and standard display connectivity. Both use a 5 nm TSMC process, but the data indicates two entirely different design philosophies. The MI300A is a data center compute module, while the RTX 5080 SUPER is a dual-slot consumer board. The following analysis examines the recorded specifications and benchmark data to clarify how these devices compare.

FAQ

Q: What is the difference in memory capacity between the two devices?

A: The AMD Radeon Instinct MI300A has 192 GB of HBM3 memory on an 8192-bit bus, while the NVIDIA GeForce RTX 5080 SUPER has 24 GB of GDDR7 memory on a 256-bit bus.

Q: How do the boost clocks compare?

A: The NVIDIA GeForce RTX 5080 SUPER has a boost clock of 2617 MHz, which is higher than the AMD Radeon Instinct MI300A's boost clock of 2100 MHz.

Q: Which device has more shading units?

A: The AMD Radeon Instinct MI300A has 19456 shading units, compared to 10752 shading units on the NVIDIA GeForce RTX 5080 SUPER.

Q: What does the benchmark score indicate for the RTX 5080 SUPER?

A: The RTX 5080 SUPER has a single recorded benchmark score of 3075 in 3dmark_3dmark_steel_nomad_dx12, placing it at the 19th percentile of all GPUs.

Q: What is the thermal design power (TDP) for each product?

A: The AMD Radeon Instinct MI300A has a TDP of 750 W with a suggested PSU of 1150 W. The NVIDIA GeForce RTX 5080 SUPER has a TDP of 415 W.

Q: Does the MI300A support any display outputs?

A: No, the AMD Radeon Instinct MI300A has no display outputs, whereas the NVIDIA GeForce RTX 5080 SUPER provides 1x HDMI 2.1b and 3x DisplayPort 2.1b.

The Verdict

The data points to a clear division of purpose. The AMD Radeon Instinct MI300A is designed for compute workloads that demand massive memory capacity. Its 192 GB HBM3 pool and 10.3 TB/s bandwidth dwarf the RTX 5080 SUPER's 24 GB GDDR7 and 1.02 TB/s. The MI300A's 750 W TDP and OAM Module slot width indicate a server-oriented design with no consumer display support.

The NVIDIA GeForce RTX 5080 SUPER is the only one of the two with any benchmark presence in the database. Its score of 3075 in 3dmark_3dmark_steel_nomad_dx12 places it at the 19th percentile overall. The nearest rivals recorded for it show a tight grouping: the NVIDIA Quadro P1000 scores 3163 with a -2.8% delta, the Intel Arc Pro B60 scores 3182 with a -3.4% delta, while the NVIDIA GeForce 820A and GeForce GTX 860M score lower at 2983 and 2967 respectively. This suggests the RTX 5080 SUPER sits in a specific performance bracket, with a 3.1% edge over the GeForce 820A and a 3.6% edge over the GeForce GTX 860M.

For users who need rendering, display output, or general graphics acceleration, the RTX 5080 SUPER is the only viable option. For workloads requiring extreme memory capacity and raw compute throughput, the MI300A delivers a completely different class of resource. The MI300A has no recorded benchmark scores, so its compute superiority is inferred from specifications rather than direct measurements.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between these two products. The MI300A has zero recorded benchmark scores, while the RTX 5080 SUPER has exactly one. This absence of overlapping data means a direct performance comparison is not possible from the recorded measurements.

The RTX 5080 SUPER's nearest rivals provide some context for its performance. The NVIDIA Quadro P1000 scores 3163, which is 2.8% higher than the RTX 5080 SUPER's 3075. The Intel Arc Pro B60 scores 3182, a 3.4% advantage. On the lower side, the NVIDIA GeForce 820A scores 2983, which the RTX 5080 SUPER beats by 3.1%. The NVIDIA GeForce GTX 860M scores 2967, and the RTX 5080 SUPER leads it by 3.6%.

These deltas are small, indicating the RTX 5080 SUPER sits in a narrow performance band around the 3000 score mark. The 19th percentile ranking confirms it is not near the top of the overall GPU distribution. Without any MI300A benchmark data, there is no way to establish a numerical relationship between the two devices' actual performance in compute tasks.

Specification Differences

The two devices differ across nearly every major specification category. The MI300A has 153,000 million transistors on a 1017 mm² die, while the RTX 5080 SUPER has 45,600 million transistors on a 378 mm² die. This results in a transistor density of 150.4M per mm² for the MI300A and 120.6M per mm² for the RTX 5080 SUPER.

Memory represents the largest gap. The MI300A has 192 GB of HBM3 with an 8192-bit bus and 10.3 TB/s bandwidth. The RTX 5080 SUPER has 24 GB of GDDR7 with a 256-bit bus and 1.02 TB/s bandwidth. The MI300A's memory clock is listed at 2525 MHz with 10.1 Gbps effective, while the RTX 5080 SUPER runs at 2000 MHz with 32 Gbps effective.

Shader resources differ substantially. The MI300A has 19456 shading units and 1216 TMUs, but 0 ROPs and a pixel rate of 0 MPixel/s. The RTX 5080 SUPER has 10752 shading units, 336 TMUs, 112 ROPs, and a pixel rate of 293.1 GPixel/s. Texture rates are 2,553.6 GTexel/s for the MI300A and 879.3 GTexel/s for the RTX 5080 SUPER.

Compute throughput shows the MI300A's advantage in certain areas. The MI300A delivers 81.72 TFLOPS FP32 and 653.7 TFLOPS FP16 (8:1). The RTX 5080 SUPER delivers 56.28 TFLOPS FP32 and 56.28 TFLOPS FP16 (1:1). The RTX 5080 SUPER includes 84 RT cores and 336 tensor cores, while the MI300A lists neither.

Power and physical design differ significantly. The MI300A has a 750 W TDP and uses an OAM Module slot width with no power connectors and no display outputs. The RTX 5080 SUPER has a 415 W TDP, dual-slot width, a single 16-pin power connector, and four display outputs. The MI300A requires a suggested PSU of 1150 W, while the RTX 5080 SUPER does not have a recorded suggested PSU.

Release dates also differ. The MI300A was released on 2023-12-05, while the RTX 5080 SUPER has a release date of 2025-12-31. The RTX 5080 SUPER has an active production status, while the MI300A's production status is not recorded.

Architecture Differences

The MI300A uses the CDNA 3.0 architecture with the Aqua Vanjaram chip, designed for the Radeon Instinct (MIx) generation. The RTX 5080 SUPER uses the Blackwell 2.0 architecture with the GB203 chip, part of the GeForce 50-series. Both are fabricated on a 5 nm process at TSMC, but the underlying designs diverge sharply.

The MI300A's CDNA 3.0 architecture targets data center compute. Its transistor count of 153,000 million and die size of 1017 mm² reflect a massive compute-focused design. The lack of ROPs and display outputs confirms it is not intended for graphics rendering. Its FP16 throughput of 653.7 TFLOPS (8:1) indicates a strong preference for mixed-precision workloads common in AI and scientific computing.

The RTX 5080 SUPER's Blackwell 2.0 architecture is a consumer graphics design. It includes 84 RT cores for ray tracing and 336 tensor cores for AI acceleration. Its API support includes DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, none of which are recorded for the MI300A. The FP16 rate of 56.28 TFLOPS (1:1) matches its FP32 rate, showing a balanced approach rather than a dedicated compute unit.

The MI300A's 192 GB HBM3 memory on an 8192-bit bus is an architecture-level decision that prioritizes bandwidth and capacity over latency. The RTX 5080 SUPER's 24 GB GDDR7 on a 256-bit bus prioritizes cost and consumer accessibility. The power envelope reflects these choices: 750 W for the MI300A versus 415 W for the RTX 5080 SUPER.

Where Each One Wins

The AMD Radeon Instinct MI300A wins on raw compute specifications. Its FP32 throughput of 81.72 TFLOPS and FP16 throughput of 653.7 TFLOPS exceed the RTX 5080 SUPER's 56.28 TFLOPS in both categories. Its texture rate of 2,553.6 GTexel/s is nearly three times the RTX 5080 SUPER's 879.3 GTexel/s. The 192 GB memory capacity and 10.3 TB/s bandwidth make it suited for workloads that cannot fit in smaller memory pools.

The NVIDIA GeForce RTX 5080 SUPER wins on graphics and consumer features. Its 112 ROPs and 293.1 GPixel/s pixel rate enable actual rendering, while the MI300A has zero pixel throughput. The RTX 5080 SUPER includes 84 RT cores and 336 tensor cores, features absent from the MI300A's recorded specifications. Its display outputs and dual-slot form factor make it usable in standard desktop systems.

The RTX 5080 SUPER also wins on clock speed. Its boost clock of 2617 MHz exceeds the MI300A's 2100 MHz, and its base clock of 2295 MHz is more than double the MI300A's 1000 MHz. The power requirement is lower at 415 W versus 750 W, though the database does not record a suggested PSU for the RTX 5080 SUPER.

The single benchmark result favors the RTX 5080 SUPER by virtue of existing at all. The MI300A has no recorded benchmark scores and no nearest rivals, making its real-world performance unmeasurable from the data. The RTX 5080 SUPER's 19th percentile ranking and tight rival grouping around the 3000 score mark indicate a moderate performance level, but this is only one test in one application.

The MI300A's release date of 2023-12-05 and the RTX 5080 SUPER's release date of 2025-12-31 indicate the RTX 5080 SUPER is a newer product, with an active production status confirming current availability. The MI300A's production status is not recorded. The RTX 5080 SUPER has a launch MSRP of 999 USD.