NVIDIA B200 SXM6 vs NVIDIA GeForce RTX 5090 SE Comparison

Head-to-Head Benchmarks

The recorded database contains no direct benchmark entries for either the NVIDIA B200 SXM6 or the NVIDIA GeForce RTX 5090 SE. Both GPUs have an average benchmark score of 0, and the head-to-head benchmark comparison array is empty. Consequently, there are no measured performance deltas, no percentile rankings beyond the neutral 50th percentile mark, and no win counts to report. The absence of benchmark data means any numerical comparison must rely on the raw specification fields provided, not on executed tests.

What the data does show is a near parity in raw floating-point throughput. The B200 SXM6 delivers 69.34 TFLOPS for FP32 and the same 69.34 TFLOPS for FP16, with a 1:1 ratio. The RTX 5090 SE delivers 66.94 TFLOPS for both FP32 and FP16, also at a 1:1 ratio. That places the B200 SXM6 roughly 3.6% ahead in theoretical FP32 compute, a margin that is statistically negligible in real workloads but still measurable in the specification sheet. The texture rate tells a similar story: the B200 SXM6 reaches 1,083.4 GTexel/s, while the RTX 5090 SE reaches 1,045.9 GTexel/s, a lead of about 3.6% for the server part.

The pixel rate flips the narrative decisively. The RTX 5090 SE outputs 380.3 GPixel/s, while the B200 SXM6 manages only 43.92 GPixel/s. That is an 8.66x advantage for the GeForce card, driven by its 160 ROPs versus just 24 ROPs on the B200 SXM6. For any workload that depends on rasterization output, the RTX 5090 SE is in a different category entirely. The B200 SXM6 is not built for pixel pushing; its 24 ROPs reflect a compute-first design, not a graphics-first one.

Memory bandwidth is another decisive split. The B200 SXM6 offers 8.19 TB/s across an 8192-bit HBM3e bus, while the RTX 5090 SE offers 1.34 TB/s across a 384-bit GDDR7 bus. That is a 6.11x bandwidth advantage for the server GPU. Capacity follows the same pattern: 180 GB versus 24 GB, a 7.5x difference. Neither number is close. The B200 SXM6 is engineered for datasets that dwarf what any client GPU can hold locally.

Where Each One Wins

The RTX 5090 SE wins every metric tied to display and rasterization. It has 160 ROPs, a 380.3 GPixel/s pixel rate, and a full API stack: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. It also has 110 RT cores, dedicated hardware for ray tracing, which the B200 SXM6 lacks entirely (its RT core field is null). The GeForce card includes 1x HDMI 2.1b and 3x DisplayPort 2.1b outputs, while the B200 SXM6 has no outputs at all. For any graphics workload, from rendering to gaming to real-time visualization, the RTX 5090 SE is the only viable option in this comparison.

The B200 SXM6 wins every metric tied to memory capacity and bandwidth. Its 180 GB HBM3e pool is 7.5x larger than the RTX 5090 SE's 24 GB GDDR7. Its 8.19 TB/s bandwidth is 6.11x higher. It also has more shading units (18,944 versus 14,080) and more TMUs (592 versus 440), plus 592 tensor cores versus 440. The server part has a higher transistor count (208,000 million versus 92,200 million) and a larger die (1628 mm² versus 750 mm²). These specifications align with large language model inference, scientific simulation, and other memory-bound server workloads where the GeForce card would run out of capacity long before running out of compute.

The clock speeds favor the RTX 5090 SE. Its base clock is 1740 MHz and boost is 2377 MHz, versus 120 MHz base and 1830 MHz boost for the B200 SXM6. The GeForce card runs at a far higher frequency, which compensates for its lower core count in many throughput scenarios. The B200 SXM6's extremely low base clock suggests a power-constrained or thermally constrained design that relies on massive parallelism rather than clock speed.

Architecture Differences

The B200 SXM6 uses the GB100 chip under the Blackwell architecture, while the RTX 5090 SE uses the GB202 chip under Blackwell 2.0. Both are fabricated on a 5 nm process at TSMC. The transistor density differs slightly: the B200 SXM6 packs 127.8M transistors per mm², while the RTX 5090 SE reaches 122.9M per mm². The B200 SXM6 has 208,000 million transistors on a 1628 mm² die; the RTX 5090 SE has 92,200 million on a 750 mm² die.

Memory architecture is fundamentally different. The B200 SXM6 uses HBM3e with an 8192-bit bus, a configuration designed for extreme bandwidth and capacity. The RTX 5090 SE uses GDDR7 with a 384-bit bus, a standard for client GPUs that prioritizes cost and thermal envelope over sheer bandwidth. The B200 SXM6 has a 2000 MHz memory clock (8 Gbps effective), while the RTX 5090 SE has a 1750 MHz clock (28 Gbps effective). The higher effective data rate on GDDR7 partially compensates for the narrower bus, but the total bandwidth gap remains enormous.

The B200 SXM6 has no RT cores, no display outputs, and no graphics API support (DirectX, OpenGL, and Vulkan are all listed as N/A). It is a pure compute accelerator. The RTX 5090 SE has 110 RT cores, full API support, and a dual-slot form factor with a 16-pin power connector. The B200 SXM6 is an SXM module, a board-level form factor for servers, while the RTX 5090 SE is a standard dual-slot card measuring 267 mm in length, 111 mm in height, and 40 mm in width.

Power and interface differ sharply. The B200 SXM6 has a TDP of 1000 W and a suggested PSU of 1400 W, with a PCIe 6.0 x16 interface. The RTX 5090 SE has a TDP of 500 W and a suggested PSU of 900 W, with a PCIe 5.0 x16 interface. The server part draws twice the power and uses a newer bus standard. The launch MSRP for the B200 SXM6 is 34,999 USD, while the RTX 5090 SE is listed at 1,499 USD. (The database records both launch prices, but the analysis does not weigh value.)

The Verdict

The data indicates two entirely different products that happen to share a manufacturer and an architecture family. The NVIDIA B200 SXM6 is a server compute module with 180 GB of HBM3e, 8.19 TB/s of bandwidth, and 69.34 TFLOPS of FP32 compute. It has no display outputs, no RT cores, no graphics API support, and a 1000 W TDP. The NVIDIA GeForce RTX 5090 SE is a client graphics card with 24 GB of GDDR7, 1.34 TB/s of bandwidth, 66.94 TFLOPS of FP32 compute, 110 RT cores, full graphics API support, and a 500 W TDP.

For any workload that requires rendering, ray tracing, or display output, the RTX 5090 SE is the only choice. Its 160 ROPs and 380.3 GPixel/s pixel rate make it 8.66x faster than the B200 SXM6 in pixel throughput. For any workload that requires massive memory capacity or bandwidth, the B200 SXM6 is the only choice. Its 180 GB capacity and 8.19 TB/s bandwidth are 7.5x and 6.11x higher, respectively.

The B200 SXM6's 69.34 TFLOPS FP32 output is 3.6% higher than the RTX 5090 SE's 66.94 TFLOPS, but that margin is irrelevant in practice given the differing memory systems and use cases. The B200 SXM6 also has more shading units (18,944 versus 14,080), more TMUs (592 versus 440), and more tensor cores (592 versus 440). The RTX 5090 SE has higher clocks (2377 MHz boost versus 1830 MHz boost) and far higher pixel throughput.

The benchmark database records no executed tests for either GPU, so the verdict relies entirely on specification analysis. The B200 SXM6 targets server workloads where memory capacity and bandwidth dominate. The RTX 5090 SE targets client workloads where rasterization, ray tracing, and API compatibility dominate. Neither part can substitute for the other.

FAQ

Q: Which GPU has more FP32 compute power?

A: The NVIDIA B200 SXM6 delivers 69.34 TFLOPS, which is 3.6% higher than the RTX 5090 SE's 66.94 TFLOPS.

Q: How much memory does each GPU have?

A: The B200 SXM6 has 180 GB of HBM3e, while the RTX 5090 SE has 24 GB of GDDR7. The B200 SXM6 has 7.5x more capacity.

Q: Does the B200 SXM6 support ray tracing?

A: No. The B200 SXM6 has no RT cores (the field is null), while the RTX 5090 SE has 110 RT cores.

Q: What is the memory bandwidth difference?

A: The B200 SXM6 has 8.19 TB/s across an 8192-bit bus, while the RTX 5090 SE has 1.34 TB/s across a 384-bit bus. The B200 SXM6 is 6.11x higher.

Q: Which GPU has display outputs?

A: Only the RTX 5090 SE has display outputs: 1x HDMI 2.1b and 3x DisplayPort 2.1b. The B200 SXM6 has no outputs.

Q: What are the power requirements?

A: The B200 SXM6 has a TDP of 1000 W and a suggested PSU of 1400 W. The RTX 5090 SE has a TDP of 500 W and a suggested PSU of 900 W.

Specification Differences

| Field | NVIDIA B200 SXM6 | NVIDIA GeForce RTX 5090 SE |

|-------|------------------|----------------------------|

| Chip | GB100 | GB202 |

| Architecture | Blackwell | Blackwell 2.0 |

| Transistors | 208,000 million | 92,200 million |

| Die Size | 1628 mm² | 750 mm² |

| Transistor Density | 127.8M / mm² | 122.9M / mm² |

| Base Clock | 120 MHz | 1740 MHz |

| Boost Clock | 1830 MHz | 2377 MHz |

| Memory Clock | 2000 MHz (8 Gbps effective) | 1750 MHz (28 Gbps effective) |

| Memory Size | 180 GB | 24 GB |

| Memory Type | HBM3e | GDDR7 |

| Memory Bus | 8192 bit | 384 bit |

| Memory Bandwidth | 8.19 TB/s | 1.34 TB/s |

| Shading Units | 18,944 | 14,080 |

| TMUs | 592 | 440 |

| ROPs | 24 | 160 |

| RT Cores | N/A (null) | 110 |

| Tensor Cores | 592 | 440 |

| Pixel Rate | 43.92 GPixel/s | 380.3 GPixel/s |

| Texture Rate | 1,083.4 GTexel/s | 1,045.9 GTexel/s |

| FP32 | 69.34 TFLOPS | 66.94 TFLOPS |

| FP16 | 69.34 TFLOPS (1:1) | 66.94 TFLOPS (1:1) |

| TDP | 1000 W | 500 W |

| Slot Width | SXM Module | Dual-slot |

| Power Connectors | N/A | 1x 16-pin |

| Suggested PSU | 1400 W | 900 W |

| Bus Interface | PCIe 6.0 x16 | PCIe 5.0 x16 |

| Display Outputs | No outputs | 1x HDMI 2.1b, 3x DisplayPort 2.1b |

| DirectX | N/A | 12 Ultimate (12_2) |

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | N/A | 267 mm x 111 mm x 40 mm |

| Release Date | 2024-10-31 | 2025-12-31 |

| Predecessor | Server Hopper | GeForce 40 |

| Successor | Server Rubin | GeForce 60 |

| Launch MSRP | 34,999 USD | 1,499 USD |