AMD Radeon AI PRO 9600D vs NVIDIA B300 Comparison

The Verdict

The database profile for the AMD Radeon AI PRO 9600D and the NVIDIA B300 presents two fundamentally different compute devices. The AMD card is a single-slot, 150 W professional workstation GPU built on RDNA 4.0 with 32 GB of GDDR6 memory. The NVIDIA B300 is a 1400 W SXM module built on Blackwell Ultra with 144 GB of HBM3e, designed for server-scale acceleration. Neither part has recorded benchmark scores in the database, and both sit at the 50th percentile against all GPUs, so the analysis here relies entirely on architectural specifications and memory characteristics.

For a workstation tasked with graphics rendering, video output, and general-purpose compute within a single PCIe slot, the AMD Radeon AI PRO 9600D is the only viable choice between the two. It provides a display output (DisplayPort 2.1a), supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and consumes a fraction of the power. The NVIDIA B300 has no display outputs and no listed graphics API support, making it unsuitable for any interactive or display-driven workload.

For large-scale AI training or inference requiring massive memory capacity and tensor throughput, the NVIDIA B300 is the clear pick. Its 144 GB of HBM3e provides 4.10 TB/s of bandwidth, and its 592 tensor cores deliver FP16 performance at 1,231.8 TFLOPS, dwarfing the AMD part in every compute metric. The B300 also has a much higher FP32 throughput at 76.99 TFLOPS versus 24.82 TFLOPS for the AMD card.

The choice comes down to workload class. The data shows no overlap in intended use cases: the AMD card is a graphics-capable workstation accelerator, while the NVIDIA B300 is a server compute module without any display capability. Picking the wrong one would mean missing critical features, either the lack of a display output on the B300 or the 17x lower tensor performance on the AMD card.

Where Each One Wins

The AMD Radeon AI PRO 9600D wins in every category related to graphics output and rasterization throughput. Its pixel rate of 193.9 GPixel/s is nearly four times the B300's 48.77 GPixel/s, and its texture rate of 387.8 GTexel/s, while lower than the B300's 1,202.9 GTexel/s, is paired with 96 ROPs versus the B300's 24 ROPs. The AMD card also delivers a full API stack for graphics (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4), while the B300 lists no graphics APIs at all. The AMD part uses a single 16-pin power connector and requires a 450 W power supply, compared to the B300's 1800 W suggested PSU, making the AMD card installable in standard workstation chassis. Its 241 mm length and single-slot width fit where an SXM module cannot.

The NVIDIA B300 wins decisively in compute density and memory capacity. It has 18,944 shading units versus 3,072 on the AMD card, 592 texture mapping units versus 192, and 592 tensor cores where the AMD part has none listed. Memory bandwidth is 4.10 TB/s versus 576.0 GB/s, a 7.1x advantage. FP32 compute is 76.99 TFLOPS versus 24.82 TFLOPS, a 3.1x lead. FP16 throughput is 1,231.8 TFLOPS versus 24.82 TFLOPS, a 49.6x lead. The B300 also has 144 GB of memory versus 32 GB, a 4.5x capacity advantage. Transistor count is 104,000 million versus 53,900 million, reflecting the B300's larger compute array.

The B300 also uses HBM3e memory on a 4096-bit bus, whereas the AMD card uses GDDR6 on a 256-bit bus. The B300's memory clock is listed at 2000 MHz with 8 Gbps effective, while the AMD card runs at 2250 MHz with 18 Gbps effective. Despite the lower effective clock, the B300's enormous bus width delivers the bandwidth advantage.

Architecture Differences

The AMD Radeon AI PRO 9600D is built on RDNA 4.0 using TSMC's 4 nm process, with a die size of 357 mm². The NVIDIA B300 uses Blackwell Ultra on a 5 nm process, also from TSMC, but the database records no die size for it. The AMD chip, Navi 48, packs 53,900 million transistors for a density of 151.0 million per mm². The B300's GB110 chip has 104,000 million transistors, nearly double the AMD part's count, but its density is not recorded due to the missing die size.

Clock behavior differs substantially. The AMD card has a base clock of 1080 MHz and a boost clock of 2020 MHz. The B300 has a base clock of 1665 MHz and a boost clock of 2032 MHz. The B300's base clock is 585 MHz higher, but its boost clock is only 12 MHz higher than the AMD part's boost. The AMD card's game clock is listed as 1080 MHz, matching its base clock, while the B300 has no game clock listed.

Memory architecture is the widest gap. The AMD card uses 32 GB of GDDR6 on a 256-bit bus, achieving 576.0 GB/s. The B300 uses 144 GB of HBM3e on a 4096-bit bus, achieving 4.10 TB/s. The B300's bus width is 16 times wider, and its memory capacity is 4.5 times larger. The AMD card's memory runs at 2250 MHz with 18 Gbps effective, while the B300 runs at 2000 MHz with 8 Gbps effective, but the bus width dominates the bandwidth calculation.

Shader and fixed-function hardware differ by design. The AMD card has 3,072 shading units, 192 TMUs, and 96 ROPs, plus 48 ray tracing cores. The B300 has 18,944 shading units, 592 TMUs, and only 24 ROPs, with no ray tracing cores listed but 592 tensor cores. The B300's low ROP count reflects its server orientation, where raster output is not a priority. The AMD card's 48 ray tracing cores indicate graphics-focused acceleration, while the B300's tensor cores target matrix operations.

Power and physical form factor diverge completely. The AMD card is a single-slot, 241 mm long, 111 mm tall, 19 mm wide card with a 16-pin connector and a 150 W TDP. The B300 is an SXM module with no dimensions recorded, a 1400 W TDP, and no power connector listed, requiring a 1800 W power supply. The B300's power draw is 9.3 times the AMD card's, and its suggested PSU is 4 times higher.

Process node differences affect efficiency. The AMD card uses 4 nm while the B300 uses 5 nm, giving the AMD part a density advantage per mm², but the B300 compensates with a much larger transistor budget. The AMD card's release date is recorded as December 10, 2025, while the B300's is September 10, 2025, making the B300 the earlier release. The AMD card's predecessor is listed as Radeon Pro Vega, and the B300's predecessor is Server Hopper, with the B300's successor listed as Server Rubin.

FAQ

Q: Does the NVIDIA B300 support display output?

A: No. The database lists "No outputs" for the B300's display outputs, while the AMD Radeon AI PRO 9600D provides one DisplayPort 2.1a connection.

Q: Which GPU has higher FP32 compute throughput?

A: The NVIDIA B300 delivers 76.99 TFLOPS of FP32, which is 3.1 times the AMD Radeon AI PRO 9600D's 24.82 TFLOPS.

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

A: The NVIDIA B300 has 144 GB of HBM3e memory, while the AMD Radeon AI PRO 9600D has 32 GB of GDDR6, a 4.5x capacity advantage for the B300.

Q: Which GPU has more shading units?

A: The NVIDIA B300 has 18,944 shading units, compared to the AMD Radeon AI PRO 9600D's 3,072, a 6.2x difference.

Q: What power supply does each GPU require?

A: The AMD Radeon AI PRO 9600D has a 150 W TDP and suggests a 450 W PSU. The NVIDIA B300 has a 1400 W TDP and suggests an 1800 W PSU.

Q: Does the AMD card have any tensor cores?

A: The database lists no tensor cores for the AMD Radeon AI PRO 9600D, while the NVIDIA B300 has 592 tensor cores.

Head-to-Head Benchmarks

While the database currently has no recorded benchmark scores for either GPU, the architectural specifications provide a quantitative basis for comparison. The most significant gap is in FP16 throughput. The NVIDIA B300 achieves 1,231.8 TFLOPS, which is 49.6 times the AMD Radeon AI PRO 9600D's 24.82 TFLOPS. This difference is driven by the B300's tensor cores and the 16:1 FP16 ratio, whereas the AMD card runs FP16 at a 1:1 ratio with FP32.

Memory bandwidth is the second-largest differentiator. The B300's 4.10 TB/s is 7.1 times the AMD card's 576.0 GB/s. This bandwidth advantage comes from the 4096-bit HBM3e interface versus the 256-bit GDDR6 bus. For memory-bound workloads, the B300 can feed its compute units at a rate the AMD card cannot approach.

FP32 compute shows a 3.1x lead for the B300 at 76.99 TFLOPS versus 24.82 TFLOPS. Texture rate favors the B300 at 1,202.9 GTexel/s versus 387.8 GTexel/s, a 3.1x difference consistent with its 592 TMUs against 192. The B300's shading unit count of 18,944 is 6.2 times the AMD card's 3,072.

The AMD card wins in pixel throughput. Its 193.9 GPixel/s is 4.0 times the B300's 48.77 GPixel/s, driven by 96 ROPs versus 24. The AMD card also has 48 ray tracing cores while the B300 has none listed, indicating a graphics acceleration capability the B300 lacks.

Transistor count favors the B300 at 104,000 million versus 53,900 million, a 1.9x difference. The AMD card's 4 nm process gives it a higher transistor density at 151.0 million per mm², but the B300's larger chip, with no recorded die size, uses more total transistors. Clock speeds are close at the boost level, with the B300 at 2032 MHz and the AMD card at 2020 MHz, a 12 MHz difference. The B300's base clock of 1665 MHz is 585 MHz higher than the AMD card's 1080 MHz base.

Power consumption inverts the performance relationship. The B300's 1400 W TDP is 9.3 times the AMD card's 150 W. The suggested PSU scales similarly, with 1800 W for the B300 versus 450 W for the AMD card. The AMD card's single-slot form factor and 16-pin connector contrast with the B300's SXM module design, which requires no user-facing power connector but demands a much heavier power delivery infrastructure.