AMD Instinct MI308X vs NVIDIA GeForce RTX 5080 SUPER Comparison

# Head-to-Head Benchmarks

The database contains limited direct benchmark data for these two accelerators, but the recorded information still allows for meaningful comparison. The NVIDIA GeForce RTX 5080 SUPER has a single recorded benchmark result: a 3DMark Steel Nomad DX12 score of 3,075. The AMD Instinct MI308X has no recorded benchmark scores in the database, and its average benchmark score is listed as 0. This absence of data for the MI308X makes a direct numerical comparison impossible from the database alone.

The RTX 5080 SUPER's percentile ranking among all GPUs is 19, which places it in the lower portion of the distribution relative to all recorded graphics cards. Its nearest rivals in the database provide context for this score. The NVIDIA Quadro P1000 achieves an average score of 3,163, which is 2.8% higher than the RTX 5080 SUPER. The Intel Arc Pro B60 scores 3,182, outperforming the RTX 5080 SUPER by 3.4%. Conversely, the NVIDIA GeForce 820A scores 2,983, which is 3.1% lower, and the NVIDIA GeForce GTX 860M scores 2,967, sitting 3.6% below the RTX 5080 SUPER. These deltas show that the RTX 5080 SUPER sits in a narrow band between these four rivals, with performance within roughly 3.6% of each one.

The MI308X, by contrast, has no benchmark entries and no nearest rivals listed. Its percentile versus all GPUs is 50, which is a neutral midpoint value that likely reflects the absence of measured data rather than actual performance characteristics. The head-to-head benchmark array between the two products is empty, and the win counters show 0 for both sides. This means the database offers no direct head-to-head test results, no frame rate comparisons, and no workload-specific performance numbers that pit these two accelerators against each other.

What the data does show is that the RTX 5080 SUPER's benchmark score of 3,075 is a single data point, likely from a specific graphics workload. The MI308X's zero score indicates that either no tests have been run on it or no results have been submitted to the database. For a hardware analyst, this is a significant gap. The absence of data for the MI308X means that any quantitative comparison must rely on architectural specifications rather than measured outcomes.

The RTX 5080 SUPER's nearest rival deltas are tight, ranging from -3.4% to +3.6%. This clustering suggests that the benchmark score is consistent with a group of mid-range GPUs, though the database does not reveal whether these rivals are comparable in raw compute capability or are simply similar in this one test. The Quadro P1000 being 2.8% faster and the Arc Pro B60 being 3.4% faster indicates that the RTX 5080 SUPER is not at the top of this particular benchmark grouping. The GeForce 820A and GTX 860M are slower by 3.1% and 3.6% respectively, placing the RTX 5080 SUPER in the middle of this five-card cluster.

# Architecture Differences

The architectural divergence between these two products is substantial and reflects their different design goals. The AMD Instinct MI308X uses the Aqua Vanjaram chip based on the CDNA 3.0 architecture, manufactured on a 5 nm process at TSMC. The NVIDIA GeForce RTX 5080 SUPER uses the GB203 chip based on the Blackwell 2.0 architecture, also manufactured on a 5 nm process at TSMC. Both products share the same process node and foundry, but their chip designs could not be more different.

Transistor counts reveal the scale gap. The MI308X contains 153,000 million transistors on a die size of 1017 mm². The RTX 5080 SUPER contains 45,600 million transistors on a die size of 378 mm². This means the MI308X has more than three times the transistor count of the RTX 5080 SUPER, and its die is nearly three times larger. The transistor density also differs: the MI308X achieves 150.4 million transistors per square millimeter, while the RTX 5080 SUPER achieves 120.6 million per square millimeter. The MI308X packs transistors more densely despite its much larger physical footprint.

Memory configurations are another major differentiator. The MI308X comes with 192 GB of HBM3 memory on an 8192-bit bus, delivering 5.32 TB/s of bandwidth. The RTX 5080 SUPER has 24 GB of GDDR7 memory on a 256-bit bus, providing 1.02 TB/s of bandwidth. The MI308X offers eight times the memory capacity and more than five times the memory bandwidth. The memory clock rates also differ: the MI308X runs memory at 1300 MHz with 5.2 Gbps effective data rate, while the RTX 5080 SUPER runs memory at 2000 MHz with 32 Gbps effective data rate. The GDDR7 memory on the RTX 5080 SUPER operates at a much higher effective speed per pin, but the MI308X's enormous bus width compensates with far greater aggregate bandwidth.

Compute resources show a similar split. The MI308X has 19,456 shading units and 1,216 texture mapping units, but no rendered output units (0 ROPs) and no pixel rate. The RTX 5080 SUPER has 10,752 shading units, 336 TMUs, and 112 ROPs. The MI308X has nearly double the shading units and more than triple the TMUs, but it lacks rasterization output stages entirely. This reflects the MI308X's compute-focused design, which does not handle traditional graphics rendering output. The RTX 5080 SUPER also includes 84 ray tracing cores and 336 tensor cores, while the MI308X has no listed RT cores or tensor cores in the database. The MI308X's texture rate is 2,553.6 GTexel/s, while the RTX 5080 SUPER's texture rate is 879.3 GTexel/s, a difference of roughly 2.9 times.

Floating-point performance follows the compute-versus-graphics divide. The MI308X delivers 81.72 TFLOPS for both FP32 and FP16, with a 1:1 ratio. The RTX 5080 SUPER delivers 56.28 TFLOPS for both FP32 and FP16, also with a 1:1 ratio. The MI308X is ahead by about 45% in raw FP32 throughput. Clock speeds tell a different story: the MI308X has a base clock of 1000 MHz and a boost clock of 2100 MHz, while the RTX 5080 SUPER has a base clock of 2295 MHz and a boost clock of 2617 MHz. The NVIDIA part runs at significantly higher clock frequencies, but the AMD part compensates with more compute units and a wider memory interface.

# The Verdict

The data indicates two fundamentally different products aimed at different workloads. The AMD Instinct MI308X is a compute accelerator with no display outputs, no graphics API support (DirectX, OpenGL, and Vulkan are all listed as N/A), and a power envelope of 750 W. It uses an OAM module form factor with no power connectors listed, and it requires a suggested power supply of 1150 W. The RTX 5080 SUPER is a consumer graphics card with a dual-slot design, one 16-pin power connector, and full graphics API support including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. It has display outputs (one HDMI 2.1b and three DisplayPort 2.1b) and a power draw of 415 W.

The database's benchmark gap means the verdict must come from specifications rather than measured performance. The MI308X's 192 GB memory capacity and 5.32 TB/s bandwidth point toward large-scale compute workloads such as model training or scientific simulation, where memory capacity directly limits problem size. The RTX 5080 SUPER's 24 GB memory and 1.02 TB/s bandwidth, combined with ray tracing and tensor cores, point toward graphics rendering and consumer AI workloads. The RTX 5080 SUPER has a recorded benchmark score and a 19th percentile ranking, while the MI308X has no recorded performance data at all.

The RTX 5080 SUPER's launch MSRP is 999 USD, which can be stated once as a reference point. The MI308X has no launch MSRP listed in the database. The production status of the RTX 5080 SUPER is listed as active, while the MI308X has no production status recorded. Release dates differ too: the MI308X was released on December 5, 2023, while the RTX 5080 SUPER is dated December 31, 2025.

# FAQ

Q: Which product has more memory bandwidth?

A: The AMD Instinct MI308X has a memory bandwidth of 5.32 TB/s, while the NVIDIA GeForce RTX 5080 SUPER has 1.02 TB/s. The MI308X provides more than five times the bandwidth.

Q: What is the benchmark score of the RTX 5080 SUPER?

A: The RTX 5080 SUPER has a recorded 3DMark Steel Nomad DX12 score of 3,075. Its nearest rival, the NVIDIA Quadro P1000, scores 3,163, which is 2.8% higher. The Intel Arc Pro B60 scores 3,182, which is 3.4% higher.

Q: Does the MI308X support DirectX or other graphics APIs?

A: No. The database lists DirectX, OpenGL, and Vulkan as N/A for the MI308X. It has no display outputs. The RTX 5080 SUPER supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Q: How do the transistor counts compare?

A: The MI308X has 153,000 million transistors on a 1017 mm² die. The RTX 5080 SUPER has 45,600 million transistors on a 378 mm² die. The MI308X contains over three times as many transistors on a die nearly three times larger.

Q: What are the power requirements for each?

A: The MI308X has a TDP of 750 W and requires a suggested power supply of 1150 W. The RTX 5080 SUPER has a TDP of 415 W and no suggested PSU listed. The MI308X uses an OAM module form factor with no power connectors listed, while the RTX 5080 SUPER uses a dual-slot design with one 16-pin connector.

Q: Which product has more shading units?

A: The MI308X has 19,456 shading units, while the RTX 5080 SUPER has 10,752. The MI308X also has 1,216 TMUs compared to 336 for the RTX 5080 SUPER.

# Where Each One Wins

The AMD Instinct MI308X wins on compute density and memory capacity. Its 192 GB of HBM3 memory far exceeds the RTX 5080 SUPER's 24 GB of GDDR7, making it suitable for workloads where memory footprint is the limiting factor. The 8192-bit memory bus delivers 5.32 TB/s, which is over five times the 1.02 TB/s of the RTX 5080 SUPER. The MI308X also leads in raw FP32 throughput at 81.72 TFLOPS versus 56.28 TFLOPS, a 45% advantage. The texture rate of 2,553.6 GTexel/s versus 879.3 GTexel/s further confirms the MI308X's compute-oriented strength. The MI308X's transistor count of 153,000 million versus 45,600 million indicates a much larger compute complex.

The NVIDIA GeForce RTX 5080 SUPER wins on graphics features and practical usability. It has 112 ROPs and a pixel rate of 293.1 GPixel/s, while the MI308X has 0 ROPs and a pixel rate of 0 MPixel/s. The RTX 5080 SUPER includes 84 ray tracing cores and 336 tensor cores, which the MI308X lacks entirely. The RTX 5080 SUPER has display outputs (one HDMI 2.1b and three DisplayPort 2.1b) and full API support, while the MI308X has no outputs and no graphics API support. The RTX 5080 SUPER also operates at higher clock speeds: 2295 MHz base and 2617 MHz boost versus 1000 MHz base and 2100 MHz boost for the MI308X. The RTX 5080 SUPER's 415 W TDP is significantly lower than the MI308X's 750 W, and its dual-slot form factor with a single 16-pin connector makes it more adaptable to standard PC builds. The RTX 5080 SUPER has a recorded benchmark score of 3,075 and active production status, while the MI308X has no benchmark data and no production status listed.

# Specification Differences

The two products differ in nearly every specification category. The chip design: Aqua Vanjaram for AMD versus GB203 for NVIDIA. The architecture: CDNA 3.0 for AMD versus Blackwell 2.0 for NVIDIA. The process node is identical at 5 nm, and both use TSMC as the foundry.

Transistors: 153,000 million for the MI308X versus 45,600 million for the RTX 5080 SUPER. Die size: 1017 mm² versus 378 mm². Transistor density: 150.4 million per mm² versus 120.6 million per mm². Base clock: 1000 MHz versus 2295 MHz. Boost clock: 2100 MHz versus 2617 MHz. Memory clock: 1300 MHz with 5.2 Gbps effective for the MI308X, versus 2000 MHz with 32 Gbps effective for the RTX 5080 SUPER.

Memory size: 192 GB versus 24 GB. Memory type: HBM3 versus GDDR7. Bus width: 8192 bit versus 256 bit. Bandwidth: 5.32 TB/s versus 1.02 TB/s. Shading units: 19,456 versus 10,752. TMUs: 1,216 versus 336. ROPs: 0 versus 112. RT cores: not listed versus 84. Tensor cores: not listed versus 336. Pixel rate: 0 MPixel/s versus 293.1 GPixel/s. Texture rate: 2,553.6 GTexel/s versus 879.3 GTexel/s. FP32: 81.72 TFLOPS versus 56.28 TFLOPS. FP16: 81.72 TFLOPS versus 56.28 TFLOPS, both at 1:1 ratio.

TDP: 750 W versus 415 W. Slot width: OAM module versus dual-slot. Power connectors: none listed versus one 16-pin. Suggested PSU: 1150 W versus none listed. Bus interface: both PCIe 5.0 x16. Display outputs: no outputs versus one HDMI 2.1b and three DisplayPort 2.1b. DirectX: N/A versus 12 Ultimate. OpenGL: N/A versus 4.6. Vulkan: N/A versus 1.4. Dimensions: the MI308X has no listed dimensions, while the RTX 5080 SUPER measures 304 mm in length, 137 mm in height, and 40 mm in width. Release date: December 5, 2023 for the MI308X versus December 31, 2025 for the RTX 5080 SUPER. Production status: not listed for the MI308X versus active for the RTX 5080 SUPER. Launch MSRP: none for the MI308X versus 999 USD for the RTX 5080 SUPER.