AMD Instinct MI325X vs NVIDIA RTX PRO 6000 Blackwell Comparison

Head-to-Head Benchmarks

The recorded data for this comparison is unusual in that the AMD Instinct MI325X has no benchmark scores listed, while the NVIDIA RTX PRO 6000 Blackwell has a single 3DMark Steel Nomad DX12 result. Consequently, the head-to-head benchmark section is defined entirely by the NVIDIA card's performance profile and its position relative to other GPUs in the database. The AMD card's absence from the benchmarks means no direct numerical comparison can be made from the database.

The NVIDIA RTX PRO 6000 Blackwell scores 16,408 points in the 3DMark Steel Nomad DX12 test. This places it at the 59th percentile among all GPUs in the database. Its nearest rivals in the database are tightly clustered around this score. The AMD Radeon PRO W7500 scores 16,415, a 0% delta, meaning the two are effectively tied. The NVIDIA GeForce RTX 5090 D V2 scores 16,504, which is 0.6% higher than the RTX PRO 6000 Blackwell. The AMD Radeon RX 5700 XT scores 16,361, a 0.3% deficit. The AMD Radeon Pro 5600M scores 16,351, a 0.4% deficit. The data shows the RTX PRO 6000 Blackwell is essentially average within this immediate peer group, sitting between the slightly faster RTX 5090 D V2 and the slightly slower Radeon cards. The margins are minimal, all within 0.6% of each other.

The AMD Instinct MI325X has no recorded benchmarks and no nearest rivals in the database. Its average benchmark score is zero, and its percentile versus all GPUs is 50, which is a default neutral position rather than a measured result. The head-to-head wins count is zero for both cards because no shared benchmark data exists. The database cannot establish any performance advantage for the AMD card in synthetic testing. The only measurable outcome is that the NVIDIA card has a defined, mid-pack standing among its closest competitors, while the AMD card remains unquantified in this particular database.

The Verdict

The data supports clear but different conclusions for each card. The NVIDIA RTX PRO 6000 Blackwell is a measurable product with a single benchmark result and a defined market position. Its 16,408 score in Steel Nomad DX12 is competitive with its nearest rivals, all within a 0.6% spread. The AMD Instinct MI325X has no recorded benchmark scores, no nearest rivals, and no wins. From the database's perspective, the NVIDIA card is the only one with performance evidence.

The NVIDIA card also has a production status of "Active", while the AMD card's production status is not listed. The NVIDIA card has a launch MSRP of 8,565 USD, which can be stated as its launch MSRP. The AMD card has no launch MSRP field. For any user seeking a GPU with verified benchmark performance, the database points exclusively to the NVIDIA RTX PRO 6000 Blackwell. The AMD Instinct MI325X cannot be recommended on the basis of the recorded data because no performance measurements exist.

The percentile data reinforces this. The NVIDIA card sits at the 59th percentile among all GPUs, which indicates it outperforms the majority of the database's entries. The AMD card's 50th percentile is a placeholder, not a result. The verdict from the data is straightforward: the NVIDIA RTX PRO 6000 Blackwell is the only card in this comparison with demonstrated benchmark capability, and its performance is solidly mid-tier among its immediate peers. The AMD card's role in this database is defined by its specifications alone, with no performance validation.

Architecture Differences

The two cards use fundamentally different architectures. The AMD Instinct MI325X is built on CDNA 3.0, a compute-optimized architecture designed for data center workloads. Its chip is called Aqua Vanjaram. The NVIDIA RTX PRO 6000 Blackwell uses the Blackwell 2.0 architecture with the GB202 chip, which is a workstation-oriented design. The architecture names alone signal different design goals: CDNA 3.0 for AMD's Instinct line and Blackwell 2.0 for NVIDIA's PRO workstation series.

The process nodes are identical at 5 nm, and both are fabricated by TSMC. The transistor counts differ substantially. The AMD card has 153,000 million transistors on a die size of 1017 mm², resulting in a transistor density of 150.4 million per mm². The NVIDIA card has 92,200 million transistors on a die size of 750 mm², giving a density of 122.9 million per mm². The AMD chip is larger in both absolute transistor count and physical area, and it packs transistors more densely.

The shading unit counts differ. The AMD card has 19,456 shading units, while the NVIDIA card has 24,064. The texture mapping units also differ: 1,216 for AMD versus 752 for NVIDIA. The render output units present a stark contrast. The AMD card has 0 ROPs, while the NVIDIA card has 192. This indicates the AMD card is not designed for traditional rasterization output, consistent with a compute-focused accelerator. The NVIDIA card has 188 ray tracing cores and 752 tensor cores, while the AMD card lists no ray tracing or tensor core counts. The API support confirms the divergence: the AMD card has no DirectX, OpenGL, or Vulkan support, while the NVIDIA card supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Specification Differences

The memory subsystems are the most dramatic difference. The AMD Instinct MI325X has 256 GB of HBM3e memory on an 8192-bit bus, delivering 6.14 TB/s of bandwidth. The NVIDIA RTX PRO 6000 Blackwell has 96 GB of GDDR7 memory on a 512-bit bus, delivering 1.79 TB/s. The AMD card offers over 2.6 times the memory capacity and over 3.4 times the bandwidth. The memory clock rates are 1500 MHz with 6 Gbps effective for AMD versus 1750 MHz with 28 Gbps effective for NVIDIA.

The clock speeds also differ. The AMD card has a base clock of 1000 MHz and a boost clock of 2100 MHz. The NVIDIA card has a base clock of 1590 MHz and a boost clock of 2617 MHz. The NVIDIA card runs at substantially higher frequencies. The floating-point performance figures reflect this. The AMD card delivers 81.72 TFLOPS for both FP32 and FP16. The NVIDIA card delivers 126.0 TFLOPS for both FP32 and FP16. The NVIDIA card has a 54% higher FP32 throughput.

The texture and pixel rates differ accordingly. The AMD card has a texture rate of 2,553.6 GTexel/s and a pixel rate of 0 MPixel/s. The NVIDIA card has a texture rate of 1,968.0 GTexel/s and a pixel rate of 502.5 GPixel/s. The power draw is significantly different: the AMD card has a TDP of 1000 W, while the NVIDIA card has a TDP of 600 W. The AMD card uses an OAM module slot width with no power connectors, while the NVIDIA card is a dual-slot design with one 16-pin power connector. The suggested PSU is 1400 W for AMD and 1000 W for NVIDIA.

The physical dimensions are only listed for the NVIDIA card: 304 mm in length, 137 mm in height, and 40 mm in width. The AMD card has no listed dimensions. The NVIDIA card has four DisplayPort 2.1b outputs, while the AMD card has no display outputs. The release dates differ: the AMD card was released on 2024-10-09, and the NVIDIA card was released on 2025-03-17. The NVIDIA card has a launch MSRP of 8,565 USD.

FAQ

Q: Which card has a higher benchmark score in the database?

A: The NVIDIA RTX PRO 6000 Blackwell has a recorded 3DMark Steel Nomad DX12 score of 16,408. The AMD Instinct MI325X has no recorded benchmark scores.

Q: How does the NVIDIA RTX PRO 6000 Blackwell compare to its nearest rivals?

A: It is effectively tied with the AMD Radeon PRO W7500 at a 0% delta, is 0.3% ahead of the AMD Radeon RX 5700 XT, is 0.4% ahead of the AMD Radeon Pro 5600M, and is 0.6% behind the NVIDIA GeForce RTX 5090 D V2.

Q: What are the memory capacities of the two cards?

A: The AMD Instinct MI325X has 256 GB of HBM3e memory. The NVIDIA RTX PRO 6000 Blackwell has 96 GB of GDDR7 memory.

Q: Which card has higher FP32 performance?

A: The NVIDIA RTX PRO 6000 Blackwell delivers 126.0 TFLOPS in FP32, compared to 81.72 TFLOPS for the AMD Instinct MI325X.

Q: Do both cards support standard graphics APIs?

A: No. The NVIDIA RTX PRO 6000 Blackwell supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD Instinct MI325X has no API support listed for DirectX, OpenGL, or Vulkan.

Q: What is the power consumption difference?

A: The AMD Instinct MI325X has a TDP of 1000 W with a suggested PSU of 1400 W. The NVIDIA RTX PRO 6000 Blackwell has a TDP of 600 W with a suggested PSU of 1000 W.

Where Each One Wins

The AMD Instinct MI325X wins in memory capacity and bandwidth. Its 256 GB of HBM3e on an 8192-bit bus with 6.14 TB/s bandwidth is far ahead of the NVIDIA card's 96 GB of GDDR7 on a 512-bit bus with 1.79 TB/s. For workloads that require massive memory pools and extreme bandwidth, such as large model inference or high-capacity data processing, the AMD card's specifications are superior. The AMD card also has a larger transistor count and die size, with 153,000 million transistors on 1017 mm² versus 92,200 million on 750 mm². Its texture rate of 2,553.6 GTexel/s exceeds the NVIDIA card's 1,968.0 GTexel/s.

The NVIDIA RTX PRO 6000 Blackwell wins in every measured performance category. Its FP32 and FP16 throughput of 126.0 TFLOPS exceeds the AMD card's 81.72 TFLOPS. Its pixel rate of 502.5 GPixel/s is measurable, while the AMD card has 0 MPixel/s. The NVIDIA card has a higher base clock of 1590 MHz and a higher boost clock of 2617 MHz, compared to 1000 MHz and 2100 MHz for the AMD card. The NVIDIA card has 24,064 shading units versus 19,456, and it has 192 ROPs while the AMD card has none. The NVIDIA card includes 188 ray tracing cores and 752 tensor cores, which the AMD card lacks entirely. The NVIDIA card also supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the AMD card has no graphics API support. The NVIDIA card has display outputs with four DisplayPort 2.1b connections, while the AMD card has no outputs. The NVIDIA card is also the only one with a recorded benchmark score, a production status of Active, and a launch MSRP of 8,565 USD. For any rasterization, ray tracing, or graphics workload, the NVIDIA card is the clear choice based on the data. For raw memory capacity and bandwidth in compute scenarios, the AMD card's specifications lead, but without benchmark confirmation, its practical performance cannot be verified from the database.