AMD Instinct MI355X vs NVIDIA RTX PRO 6000D Blackwell Max-Q Comparison

Head-to-Head Benchmarks

The recorded data shows a stark benchmark landscape. The AMD Instinct MI355X has no benchmark scores recorded in the database, while the NVIDIA RTX PRO 6000D Blackwell Max-Q has one result: a score of 11088 in 3DMark Steel Nomad DX12. This single measurement places the NVIDIA card at the 50th percentile among all GPUs, matching the AMD card's percentile position. The absence of data for the MI355X means a direct numerical comparison is impossible. However, the NVIDIA card's nearest rivals provide context: the RTX PRO 6000 Blackwell Max-Q scores identically at 11088 with a 0% delta, the AMD Radeon RX 550 scores 11075 (0.1% slower), and the GeForce GTX 1650 SUPER scores 11047 (0.4% slower). The AMD FirePro W4300 trails at 11225, which is actually 1.2% higher, making it the only rival in the list that outperforms the RTX PRO 6000D Blackwell Max-Q in this specific test. The data indicates the NVIDIA card is competitive within a narrow band of scores, but the AMD Instinct MI355X cannot be evaluated on the same basis due to the lack of recorded measurements. The wins count stands at zero for both parts, reflecting the incomplete benchmark record rather than actual performance parity.

Architecture Differences

The two accelerators diverge fundamentally in their underlying designs. The AMD Instinct MI355X uses the MI350 256CU chip built on CDNA 4.0 architecture, manufactured on a 3 nm process at TSMC. It packs 185,000 million transistors onto a 2380 mm² die, yielding a transistor density of 77.7M per mm². The NVIDIA RTX PRO 6000D Blackwell Max-Q uses the GB202 chip on Blackwell 2.0 architecture, fabricated on a 5 nm process also at TSMC. Its transistor count is 92,200 million on a 750 mm² die, with a density of 122.9M per mm². The AMD chip is larger in both absolute transistor count and die area, while the NVIDIA chip achieves higher transistor density despite the older process node.

Memory architecture separates the two further. The AMD card carries 288 GB of HBM3e memory across an 8192 bit bus, delivering 8.19 TB/s of bandwidth. The NVIDIA card uses 96 GB of GDDR7 memory on a 512 bit bus, providing 1.79 TB/s. Clock speeds tell a different story. The AMD part runs at a 1000 MHz base and 2400 MHz boost, while the NVIDIA part boosts from a 1590 MHz base to 2288 MHz. The AMD memory operates at 2000 MHz with 8 Gbps effective speed, whereas the NVIDIA memory runs at 1750 MHz with 28 Gbps effective.

Shader and compute configurations differ substantially. The AMD chip has 16384 shading units and 1024 texture mapping units, but zero ROPs and no RT or tensor core counts listed. The NVIDIA chip has 24064 shading units, 752 TMUs, 192 ROPs, 188 RT cores, and 752 tensor cores. The pixel rate for AMD is listed as 0 MPixel/s, while NVIDIA achieves 439.3 GPixel/s. Texture rates show AMD at 2,457.6 GTexel/s versus NVIDIA at 1,720.6 GTexel/s. FP32 and FP16 performance are both 78.64 TFLOPS for AMD with a 1:1 ratio, while NVIDIA delivers 110.1 TFLOPS in both precisions, also at 1:1.

Form factor and power requirements diverge sharply. The AMD card is an OAM module with no power connectors and a 1400 W TDP, requiring a suggested 1800 W power supply. Its dimensions are 102 mm in length and 165 mm in width. The NVIDIA card is a dual-slot design with a single 16-pin connector, a 300 W TDP, and a suggested 700 W PSU. It measures 267 mm in length, 111 mm in height, and 40 mm in width. The NVIDIA card supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, plus four DisplayPort 2.1b outputs. The AMD card lists no API support and no display outputs. The NVIDIA card is marked as Active in production status, while the AMD card's status is not recorded.

FAQ

Q: Which card has a higher FP32 performance according to the database?

A: The NVIDIA RTX PRO 6000D Blackwell Max-Q delivers 110.1 TFLOPS of FP32 performance, while the AMD Instinct MI355X provides 78.64 TFLOPS, giving NVIDIA a 31.46 TFLOPS advantage in this metric.

Q: What is the memory capacity difference between the two cards?

A: The AMD Instinct MI355X has 288 GB of HBM3e memory, while the NVIDIA RTX PRO 6000D Blackwell Max-Q has 96 GB of GDDR7 memory, a 192 GB difference in favor of AMD.

Q: How do the power requirements compare?

A: The AMD card has a 1400 W TDP and requires a suggested 1800 W power supply, whereas the NVIDIA card has a 300 W TDP and requires a suggested 700 W power supply, making the AMD card substantially more power-hungry.

Q: What benchmark score does the NVIDIA card have?

A: The RTX PRO 6000D Blackwell Max-Q scores 11088 in 3DMark Steel Nomad DX12, placing it at the 50th percentile among all GPUs. The AMD card has no benchmark scores recorded.

Q: Which card has more shading units?

A: The NVIDIA card has 24064 shading units, compared to 16384 on the AMD card, a difference of 7680 shading units in NVIDIA's favor.

Q: Are there any display outputs on the AMD card?

A: No, the AMD Instinct MI355X lists no display outputs, while the NVIDIA card has 4x DisplayPort 2.1b outputs.

Specification Differences

The two cards differ across nearly every recorded specification. The process node: AMD uses 3 nm, NVIDIA uses 5 nm. Transistor count: AMD has 185,000 million, NVIDIA has 92,200 million. Die size: AMD measures 2380 mm², NVIDIA measures 750 mm². Transistor density: AMD is 77.7M per mm², NVIDIA is 122.9M per mm². Base clock: AMD runs 1000 MHz, NVIDIA runs 1590 MHz. Boost clock: AMD reaches 2400 MHz, NVIDIA reaches 2288 MHz. Memory clock: AMD operates at 2000 MHz (8 Gbps effective), NVIDIA at 1750 MHz (28 Gbps effective). Memory size: 288 GB versus 96 GB. Memory type: HBM3e versus GDDR7. Bus width: 8192 bit versus 512 bit. Bandwidth: 8.19 TB/s versus 1.79 TB/s. Shading units: 16384 versus 24064. TMUs: 1024 versus 752. ROPs: 0 versus 192. RT cores: not listed versus 188. Tensor cores: not listed versus 752. Pixel rate: 0 MPixel/s versus 439.3 GPixel/s. Texture rate: 2,457.6 GTexel/s versus 1,720.6 GTexel/s. FP32: 78.64 TFLOPS versus 110.1 TFLOPS. FP16: 78.64 TFLOPS versus 110.1 TFLOPS. TDP: 1400 W versus 300 W. Slot width: OAM Module versus dual-slot. Power connectors: none versus 1x 16-pin. Suggested PSU: 1800 W versus 700 W. Display outputs: none versus 4x DisplayPort 2.1b. API support: none listed versus DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4. Dimensions: 102 mm x 165 mm versus 267 mm x 111 mm x 40 mm. Production status: not recorded versus Active. Release date: 2025-06-11 versus 2025-03-17. The NVIDIA card has a launch MSRP of 8,565 USD, while the AMD card has no launch MSRP recorded.

The Verdict

The database presents a clear split between two very different hardware philosophies. The AMD Instinct MI355X is built for memory capacity and bandwidth: 288 GB of HBM3e with 8.19 TB/s bandwidth is the dominant figure in its profile. The NVIDIA RTX PRO 6000D Blackwell Max-Q is built for compute throughput and practical workstation use: 110.1 TFLOPS of FP32, 24064 shading units, 192 ROPs, 188 RT cores, and 752 tensor cores, all within a 300 W envelope. The data indicates NVIDIA holds the advantage in raw compute metrics, API support, and display outputs. AMD holds the advantage in memory capacity, memory bandwidth, and texture rate. The NVIDIA card has a recorded benchmark result and a launch MSRP of 8,565 USD. The AMD card has no benchmark scores and no launch MSRP. For workloads that depend on FP32 or FP16 compute, the NVIDIA card is the stronger choice by the numbers. For workloads that depend on massive memory pools and memory bandwidth, the AMD card is the stronger choice. The power requirement difference is substantial: 1400 W versus 300 W TDP means the AMD card demands a much larger power supply and likely a different physical installation, as it is an OAM module rather than a dual-slot PCIe card. The NVIDIA card also provides four DisplayPort 2.1b outputs, making it usable in display-connected scenarios, while the AMD card has none. The production status marks NVIDIA as Active, while AMD's status is not recorded.

Where Each One Wins

AMD Instinct MI355X wins on memory capacity and bandwidth. The 288 GB HBM3e pool with 8.19 TB/s bandwidth is unmatched in this comparison. The 8192 bit bus width supports this data throughput. The texture rate of 2,457.6 GTexel/s also exceeds the NVIDIA card's 1,720.6 GTexel/s. The 185,000 million transistor count and 2380 mm² die size indicate a chip designed for massive data movement. The 3 nm process node gives it a manufacturing advantage in feature size.

NVIDIA RTX PRO 6000D Blackwell Max-Q wins on compute and practicality. The 110.1 TFLOPS FP32 and FP16 performance exceeds the AMD card's 78.64 TFLOPS. The 24064 shading units, 192 ROPs, 188 RT cores, and 752 tensor cores provide a full feature set that the AMD card lacks, as the AMD card lists no RT or tensor cores. The NVIDIA card supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the AMD card lists none of these APIs. The 4x DisplayPort 2.1b outputs allow direct display connectivity. The 300 W TDP and 700 W suggested PSU make it far easier to integrate into standard systems compared to the 1400 W TDP and 1800 W suggested PSU of the AMD card. The NVIDIA card also has the only recorded benchmark score, 11088 in 3DMark Steel Nomad DX12, and the only production status of Active. The higher base clock of 1590 MHz and higher memory effective speed of 28 Gbps further support its compute-oriented profile.