AMD Instinct MI300A vs NVIDIA GeForce RTX 5070 Comparison

Where Each One Wins

The recorded data places these two accelerators in completely different operating envelopes. The AMD Instinct MI300A is a compute-oriented accelerator with no display outputs, no graphics API support, and zero benchmark entries in the database. Its percentile ranking sits at 50, meaning it lands exactly in the middle of all recorded GPUs, but that ranking is based on the absence of measured benchmark scores rather than competitive performance data. The NVIDIA GeForce RTX 5070, by contrast, is a fully featured consumer graphics card with an 82nd percentile ranking, a substantial library of benchmark results, and an average benchmark score of 40,377.

The RTX 5070 wins every category where measurable performance exists. Its 3DMark Steel Nomad DX12 score of 5,077, Geekbench OpenCL score of 172,660, and Geekbench Vulkan score of 178,923 all represent recorded performance data. The PassMark suite shows a G3D score of 29,137 and a GPU compute score of 15,787. The MI300A has no comparable entries, so the database contains no direct head-to-head benchmark comparisons between the two, and the wins count sits at zero for both sides.

The use-case split is therefore structural rather than competitive. The MI300A targets server and datacenter deployments where rendering and graphics output are irrelevant, while the RTX 5070 addresses desktop gaming and workstation use. The MI300A offers 128 GB of HBM3 memory with a 5.32 TB/s bandwidth, a memory subsystem designed for large working sets in scientific computing. The RTX 5070 provides 12 GB of GDDR7 memory with 672.0 GB/s bandwidth, suited to frame buffers and real-time rendering workloads. Neither part can substitute for the other in its intended role.

Architecture Differences

The two chips share a 5 nm TSMC process node, but the similarity ends there. The MI300A uses AMD's CDNA 3.0 architecture and carries the Aqua Vanjaram chip with 153,000 million transistors on a 1017 mm² die. Transistor density reaches 150.4 million per square millimeter. The RTX 5070 uses NVIDIA's Blackwell 2.0 architecture with the GB205 chip, packing 31,100 million transistors onto a 263 mm² die, for a density of 118.3 million per square millimeter. The MI300A die area is roughly four times larger and its transistor count nearly five times higher.

The compute resources differ by a similar margin. The MI300A contains 14,592 shading units and 912 texture mapping units, with no ROPs, no ray tracing cores, and no tensor cores listed. Its FP32 throughput is 61.29 TFLOPS and its texture rate reaches 1,915.2 GTexel/s. The pixel rate is recorded as 0 MPixel/s, consistent with an accelerator that has no display pipeline. The RTX 5070 contains 6,144 shading units, 192 TMUs, 80 ROPs, 48 ray tracing cores, and 192 tensor cores. Its FP32 performance is 30.87 TFLOPS, with FP16 also at 30.87 TFLOPS at a 1:1 ratio. Pixel rate is 201.0 GPixel/s and texture rate is 482.3 GTexel/s.

Memory architecture reinforces the split. The MI300A uses HBM3 across an 8192-bit bus, while the RTX 5070 uses GDDR7 across a 192-bit bus. The MI300A's 5.32 TB/s bandwidth exceeds the RTX 5070's 672.0 GB/s by roughly eight times. The MI300A runs at a 1000 MHz base clock and 2100 MHz boost, with memory at 1300 MHz or 5.2 Gbps effective. The RTX 5070 runs at a 2325 MHz base and 2512 MHz boost, with memory at 1750 MHz or 28 Gbps effective. The RTX 5070's higher clocks reflect its graphics-oriented design, while the MI300A's massive memory bus reflects bandwidth-hungry compute workloads.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for this pair, so direct score comparisons are impossible. What exists is a one-sided benchmark record for the RTX 5070 and an empty record for the MI300A. The RTX 5070's 3DMark Steel Nomad DX12 score of 5,077 represents its DirectX 12 gaming performance. Geekbench OpenCL at 172,660 and Vulkan at 178,923 show its compute and graphics API performance under those frameworks. PassMark results range from 108 in DirectX 12 to 320 in DirectX 9, with a G2D score of 1,305 and a G3D score of 29,137. The GPU compute score of 15,787 indicates its general-purpose compute throughput.

The MI300A has no recorded scores in any of these tests. Its average benchmark score is listed as zero. The database therefore cannot establish a performance delta between the two parts in any shared workload. The nearest rivals for the RTX 5070 provide context for its standing: the AMD Radeon Pro 580 scores 40,318, which is 0.1 percent higher, and the AMD Radeon Pro WX 7100 scores 40,063, which is 0.8 percent lower. The AMD Radeon Pro 5300 scores 40,870, putting it 1.2 percent above, and the NVIDIA RTX A500 Mobile scores 39,568, which is 2 percent below. These deltas place the RTX 5070 in a tight cluster of professional mobile and workstation GPUs, all within roughly 2 percent of each other.

The MI300A has no nearest rivals listed, which reflects its absence from the benchmark database. Its 50th percentile ranking is a neutral placeholder rather than a measured position. Any attempt to compare the two parts numerically would require data that the database does not contain.

FAQ

Q: Which GPU has higher FP32 compute throughput?

A: The AMD Instinct MI300A records 61.29 TFLOPS FP32, while the NVIDIA GeForce RTX 5070 records 30.87 TFLOPS. The MI300A delivers approximately double the FP32 throughput.

Q: What memory capacities and types do the two cards use?

A: The MI300A uses 128 GB of HBM3 on an 8192-bit bus with 5.32 TB/s bandwidth. The RTX 5070 uses 12 GB of GDDR7 on a 192-bit bus with 672.0 GB/s bandwidth.

Q: Does the MI300A support DirectX, OpenGL, or Vulkan?

A: No. The MI300A lists its API support as N/A for DirectX, OpenGL, and Vulkan, and it has no display outputs. The RTX 5070 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the physical dimensions of the RTX 5070?

A: The RTX 5070 measures 245 mm by 115 mm by 40 mm and occupies a dual-slot form factor. The MI300A uses an OAM Module slot width with no length, height, or width recorded.

Q: How does the RTX 5070 compare to its nearest rivals in average benchmark score?

A: The RTX 5070 averages 40,377. The AMD Radeon Pro 580 is 0.1 percent higher at 40,318, the AMD Radeon Pro WX 7100 is 0.8 percent lower at 40,063, the AMD Radeon Pro 5300 is 1.2 percent higher at 40,870, and the NVIDIA RTX A500 Mobile is 2 percent lower at 39,568.

Q: What is the power requirement difference between the two?

A: The MI300A is rated at 750 W TDP with a suggested PSU of 1150 W and no power connectors listed. The RTX 5070 is rated at 250 W TDP with a single 16-pin connector and a suggested PSU of 600 W.

Specification Differences

The two parts differ in nearly every recorded specification except process node, foundry, and bus interface. Both use a 5 nm TSMC process and PCIe 5.0 x16. The MI300A uses the Aqua Vanjaram chip with CDNA 3.0 architecture, while the RTX 5070 uses the GB205 chip with Blackwell 2.0 architecture. Transistor counts are 153,000 million versus 31,100 million, and die sizes are 1017 mm² versus 263 mm². Transistor density is 150.4M per mm² versus 118.3M per mm².

Clock speeds favor the RTX 5070. Its base clock of 2325 MHz and boost of 2512 MHz are well above the MI300A's 1000 MHz base and 2100 MHz boost. Memory clocks differ as well: 1300 MHz with 5.2 Gbps effective on the MI300A versus 1750 MHz with 28 Gbps effective on the RTX 5070. The MI300A's memory bus is 8192 bits wide versus 192 bits, and its bandwidth of 5.32 TB/s dwarfs the 672.0 GB/s of the RTX 5070.

Compute unit counts show the MI300A's scale advantage. It has 14,592 shading units, 912 TMUs, and zero ROPs. The RTX 5070 has 6,144 shading units, 192 TMUs, and 80 ROPs. The RTX 5070 adds 48 ray tracing cores and 192 tensor cores, features the MI300A does not list. Pixel rate is 0 MPixel/s for the MI300A versus 201.0 GPixel/s for the RTX 5070. Texture rate is 1,915.2 GTexel/s versus 482.3 GTexel/s.

Power and cooling configurations diverge sharply. The MI300A is an OAM Module with no power connectors and a 750 W TDP, requiring a 1150 W PSU. The RTX 5070 is dual-slot, uses one 16-pin connector, has a 250 W TDP, and requires a 600 W PSU. Display outputs exist only on the RTX 5070, which provides one HDMI 2.1b and three DisplayPort 2.1b connectors. The MI300A has no outputs. Release dates differ by roughly fifteen months: the MI300A launched on December 5, 2023, and the RTX 5070 on March 3, 2025. The RTX 5070 carries a launch MSRP of 549 USD.

The Verdict

The data separates these two accelerators by role, not by performance head-to-head. The AMD Instinct MI300A is a datacenter compute accelerator with 128 GB of HBM3, 5.32 TB/s of bandwidth, 61.29 TFLOPS of FP32 throughput, and no graphics or display capabilities. Its 750 W TDP, OAM Module form factor, and absence of any benchmark scores position it strictly for server-side compute workloads where the RTX 5070 cannot operate.

The NVIDIA GeForce RTX 5070 is a desktop graphics card with full API support, display outputs, ray tracing and tensor cores, and a recorded benchmark presence. Its 82nd percentile ranking and average score of 40,377 place it among professional-class GPUs like the Radeon Pro 580 and Radeon Pro WX 7100, all within roughly 2 percent of one another. Its 250 W TDP, dual-slot design, and 12 GB of GDDR7 memory suit it for real-time rendering and consumer workloads.

The MI300A's 50th percentile ranking and zero benchmark scores mean the database cannot validate its performance against any rival. The RTX 5070's benchmark record is complete and competitive within its immediate peer group. For workloads that require graphics output, DirectX, Vulkan, or display connectivity, the RTX 5070 is the only option with data supporting its use. For workloads that require maximum memory capacity and bandwidth in a server context, the MI300A's specifications point to a different class of hardware entirely. The choice is defined by the workload, not by comparative performance.