AMD Instinct MI300 vs NVIDIA RTX PRO 6000 Blackwell Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries for the AMD Instinct MI300 and the NVIDIA RTX PRO 6000 Blackwell. This absence of paired test data means a side-by-side comparison of measured frame rates or compute scores cannot be drawn from recorded measurements. What the database does contain is a single 3DMark Steel Nomad DX12 result for the NVIDIA card, along with its percentile ranking and rival comparisons. The AMD Instinct MI300 has no benchmark entries at all, and its average benchmark score is recorded as zero. This makes a numeric comparison between the two cards impossible using the available data.

The NVIDIA RTX PRO 6000 Blackwell scores 16,408 points in the 3DMark Steel Nomad DX12 test. Its nearest rival, the AMD Radeon PRO W7500, averages 16,415 points, a delta of 0 percent, indicating the two cards are statistically identical in this workload. The AMD Radeon RX 5700 XT trails by a mere 0.3 percent with 16,361 points, and the AMD Radeon Pro 5600M sits at 16,351 points, 0.4 percent behind. Interestingly, the NVIDIA GeForce RTX 5090 D V2 scores 16,504 points, which places it 0.6 percent ahead of the RTX PRO 6000 Blackwell. These deltas are small, all within a single percentage point, which suggests the RTX PRO 6000 Blackwell performs at a level closely matched to those three AMD cards and the RTX 5090 D V2 in this specific test.

The percentile ranking for the RTX PRO 6000 Blackwell is 59, meaning it outperforms 59 percent of all GPUs in the database. The AMD Instinct MI300 holds a percentile rank of 50, but with no benchmark scores behind it, that percentile likely reflects a default or incomplete placement rather than a measured performance tier. The data shows the NVIDIA card has a recorded performance footprint; the AMD card does not.

The Verdict

From the recorded data, the NVIDIA RTX PRO 6000 Blackwell is the only card of the two with a measurable benchmark result. Its 16,408 score in 3DMark Steel Nomad DX12 places it in the 59th percentile of all GPUs, and its nearest rivals are all within 0.6 percent of its score, indicating a tightly grouped performance band. The AMD Instinct MI300 cannot be evaluated on benchmark grounds because no scores exist in the database. Its 50th percentile rank and zero average score provide no evidence of comparative performance.

The data implies a clear split. The RTX PRO 6000 Blackwell is a validated performer in at least one DirectX 12 workload, with a launch MSRP of 8,565 USD. It also carries display outputs, four DisplayPort 2.1b connectors, and a full API stack including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The AMD Instinct MI300, by contrast, has no display outputs and no API support in the database, listing DirectX, OpenGL, and Vulkan as not applicable. It is also recorded with zero pixel rate and zero ROPs, which suggests it is not designed for rasterized graphics output.

A user requiring a graphics card with verified DirectX 12 performance, display connectivity, and API compatibility should select the NVIDIA card based strictly on this data. A user targeting compute workloads in a server context might consider the AMD card, given its 128 GB HBM3 memory and 8192-bit bus, but the database provides no benchmark evidence to support a performance conclusion. The verdict from the data is straightforward: one card has measurable results, the other does not.

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 MI300 has no benchmark scores recorded, so no comparison is possible.

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

A: Its nearest rival, the AMD Radeon PRO W7500, scores 16,415 points, a 0 percent delta. The AMD Radeon RX 5700 XT scores 16,361 points, 0.3 percent behind. The AMD Radeon Pro 5600M scores 16,351 points, 0.4 percent behind. The NVIDIA GeForce RTX 5090 D V2 scores 16,504 points, 0.6 percent ahead.

Q: What is the percentile ranking for each card?

A: The NVIDIA RTX PRO 6000 Blackwell ranks in the 59th percentile of all GPUs. The AMD Instinct MI300 ranks in the 50th percentile.

Q: Does the AMD Instinct MI300 support display outputs?

A: No. The database lists display outputs as "No outputs" for the AMD card. The NVIDIA card has 4x DisplayPort 2.1b.

Q: What API support does each card have?

A: The NVIDIA RTX PRO 6000 Blackwell supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD Instinct MI300 lists all three APIs as not applicable.

Q: What is the memory configuration of each card?

A: The AMD Instinct MI300 has 128 GB of HBM3 memory on an 8192-bit bus with 5.32 TB/s bandwidth. The NVIDIA RTX PRO 6000 Blackwell has 96 GB of GDDR7 memory on a 512-bit bus with 1.79 TB/s bandwidth.

Specification Differences

The two cards differ across nearly every recorded specification. The AMD Instinct MI300 uses a chip named Aqua Vanjaram, while the NVIDIA card uses GB202. The AMD architecture is CDNA 3.0; the NVIDIA architecture is Blackwell 2.0. The AMD generation is listed as Instinct (MIx), the NVIDIA generation as Blackwell PRO W (x000).

Clock speeds differ substantially. The AMD card has a base clock of 1000 MHz and a boost clock of 1700 MHz. The NVIDIA card has a base clock of 1590 MHz and a boost of 2617 MHz. Memory clocks also differ: AMD runs at 1300 MHz with 5.2 Gbps effective, while NVIDIA runs at 1750 MHz with 28 Gbps effective.

Memory size and type diverge sharply. The AMD card has 128 GB of HBM3 on an 8192-bit bus. The NVIDIA card has 96 GB of GDDR7 on a 512-bit bus. Bandwidth favors AMD at 5.32 TB/s versus 1.79 TB/s for NVIDIA.

Shading units, texture mapping units, and ROPs all differ. AMD has 14,080 shading units and 880 TMUs, but zero ROPs and a pixel rate of 0 MPixel/s. NVIDIA has 24,064 shading units, 752 TMUs, and 192 ROPs, with a pixel rate of 502.5 GPixel/s. The NVIDIA card also has 188 ray tracing cores and 752 tensor cores; the AMD card lists neither.

Texture rate favors NVIDIA at 1,968.0 GTexel/s versus 1,496.0 GTexel/s for AMD. FP32 and FP16 compute favor NVIDIA at 126.0 TFLOPS versus 47.87 TFLOPS for AMD in both precisions.

Power connectors differ: AMD uses 2x 8-pin, NVIDIA uses 1x 16-pin. Slot width is dual-slot for NVIDIA, with no slot width recorded for AMD. Physical dimensions differ: AMD is 267 mm long and 111 mm high; NVIDIA is 304 mm long, 137 mm high, and 40 mm wide. NVIDIA has display outputs, AMD has none.

Production status differs. The NVIDIA card is listed as Active. The AMD card has no production status recorded. Release dates differ: AMD was released on 2023-01-03, NVIDIA on 2025-03-17. The predecessor fields differ: AMD lists Radeon Instinct, NVIDIA lists Workstation Ada. The NVIDIA card has a launch MSRP of 8,565 USD; the AMD card has none.

Architecture Differences

The architectural split is fundamental. AMD uses CDNA 3.0, a compute-focused architecture built on a 5 nm TSMC process. NVIDIA uses Blackwell 2.0, also on a 5 nm TSMC process. Both are fabricated by TSMC, but the transistor counts diverge: AMD integrates 153,000 million transistors on a 1017 mm² die, while NVIDIA integrates 92,200 million on a 750 mm² die. Transistor density favors AMD at 150.4 million per mm² versus 122.9 million per mm² for NVIDIA.

The AMD chip, Aqua Vanjaram, is a data center oriented design. Its zero ROP count, zero pixel rate, and lack of display outputs indicate it is not intended for rasterized graphics rendering. Its 128 GB HBM3 memory and 5.32 TB/s bandwidth point toward memory-bound compute workloads. The NVIDIA GB202 chip, by contrast, includes 188 ray tracing cores, 752 tensor cores, and 192 ROPs, alongside 4x DisplayPort 2.1b outputs and a full API stack. This indicates a design that handles both graphics and compute.

The NVIDIA card supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The AMD card lists no API support. The NVIDIA card has a boost clock 917 MHz higher than the AMD card, and a base clock 590 MHz higher. The AMD card has a wider memory bus, 8192 bits versus 512 bits, and more than double the memory bandwidth. The NVIDIA card has nearly double the shading units, 24,064 versus 14,080, and more than double the FP32 throughput.

Ray tracing and tensor core presence in the NVIDIA card, absent in the AMD data, marks a clear feature divergence. The AMD architecture appears optimized for raw memory throughput and large memory capacity, while the NVIDIA architecture balances compute, graphics, and specialized cores. The process node is identical, but the design philosophies differ sharply.

Where Each One Wins

The NVIDIA RTX PRO 6000 Blackwell wins in every category where the database has recorded a measurable result. It has a benchmark score of 16,408 in 3DMark Steel Nomad DX12, a 59th percentile ranking, and a texture rate of 1,968.0 GTexel/s. Its FP32 and FP16 compute of 126.0 TFLOPS double the AMD card's 47.87 TFLOPS. Its pixel rate of 502.5 GPixel/s, 192 ROPs, 188 ray tracing cores, and 752 tensor cores give it a graphics and rendering capability that the AMD card lacks entirely. Its display outputs, API support, and Active production status make it a functional, supported product.

The AMD Instinct MI300 wins in memory capacity, bus width, and bandwidth. Its 128 GB of HBM3 exceeds the NVIDIA card's 96 GB of GDDR7. Its 8192-bit bus is 16 times wider than the NVIDIA card's 512-bit bus. Its 5.32 TB/s bandwidth is nearly three times the NVIDIA card's 1.79 TB/s. It also has more TMUs, 880 versus 752, and a higher transistor count, 153,000 million versus 92,200 million. Its transistor density of 150.4 million per mm² exceeds the NVIDIA card's 122.9 million per mm².

The data suggests the AMD card is built for memory-heavy compute tasks where capacity and bandwidth matter more than rasterization or ray tracing. The NVIDIA card is built for workloads that require graphics output, API compatibility, and balanced compute. The recorded wins, however, belong entirely to NVIDIA. The AMD card has no benchmark scores, no percentile support, and no measurable performance data. Its wins are architectural, not empirical.