NVIDIA B200 SXM6 vs NVIDIA GeForce RTX 4080 SUPER Comparison

NVIDIA’s B200 SXM6 and GeForce RTX 4080 SUPER occupy opposite ends of the GPU spectrum, one a server accelerator and the other a consumer graphics card. The database records no direct head-to-head benchmark runs between them, so the comparison relies on their respective specification sheets, the RTX 4080 SUPER’s recorded benchmark scores, and the architectural details captured in the database.

Head-to-Head Benchmarks

Direct comparisons are unavailable; the head-to-head benchmark table is empty in the database. The B200 SXM6 has no recorded benchmark scores, and its percentile rank among all GPUs sits at 50, with an average benchmark score of zero. In contrast, the RTX 4080 SUPER shows a percentile rank of 86, with an average benchmark score of 54,209 across ten recorded tests.

The RTX 4080 SUPER’s benchmark results show its strongest performance in Geekbench Vulkan with a score of 260,075, followed by Geekbench OpenCL at 219,065. Its Passmark G3D score of 34,245 and Passmark GPU Compute score of 19,822 indicate solid rasterization and compute capabilities. The 3DMark Steel Nomad DX12 test produced a score of 6,600, while Passmark DirectX 9 returned 381, DirectX 11 returned 301, and DirectX 10 returned 193. DirectX 12 scored 134, and Passmark G2D recorded 1,270.

The nearest rivals in the database for the RTX 4080 SUPER are the RTX 4080, the AMD Radeon Pro W5700X, the AMD Radeon RX 6750 GRE 12 GB, and the AMD Radeon 8060S. The RTX 4080 SUPER trails the RTX 4080 by 0.1% in average score, with the RTX 4080 at 54,247. The AMD Radeon Pro W5700X leads by 1.1% with a score of 54,828, the AMD Radeon RX 6750 GRE 12 GB leads by 2.7% with 55,698, and the AMD Radeon 8060S leads by 2.8% with 55,757. These small deltas, all under three percent, place the RTX 4080 SUPER in a tightly contested band where minor architectural differences produce negligible real-world performance gaps.

For the B200 SXM6, the absence of benchmark data means its performance cannot be quantified against any rival. The database records zero wins for both parts in the head-to-head table, confirming that no comparative test results exist to analyze.

Architecture Differences

The B200 SXM6 uses the GB100 chip on the Blackwell architecture, built for the Server Blackwell (Bxx) generation. The RTX 4080 SUPER uses the AD103 chip on the Ada Lovelace architecture, belonging to the GeForce 40 series. Both are manufactured on a 5 nm process at TSMC, but the transistor counts diverge sharply. The B200 SXM6 integrates 208,000 million transistors on a die size of 1,628 mm², for a density of 127.8 million transistors per square millimeter. The RTX 4080 SUPER contains 45,900 million transistors on a 379 mm² die, with a density of 121.1 million per square millimeter.

Clock behavior differs fundamentally. The B200 SXM6 has a base clock of 120 MHz and a boost clock of 1,830 MHz, while the RTX 4080 SUPER runs at a 2,295 MHz base and 2,550 MHz boost. Memory configurations are equally divergent. The B200 SXM6 uses 180 GB of HBM3e across an 8,192-bit bus, delivering 8.19 TB/s of bandwidth. The RTX 4080 SUPER uses 16 GB of GDDR6X on a 256-bit bus, providing 736.3 GB/s. The server part’s memory bandwidth is over eleven times higher, but the consumer card’s GDDR6X runs at 1,438 MHz with 23 Gbps effective speed, whereas the B200 SXM6’s HBM3e runs at 2,000 MHz with 8 Gbps effective.

Compute resources show the B200 SXM6’s server-oriented design. It has 18,944 shading units, 592 TMUs, and 24 ROPs, while the RTX 4080 SUPER has 10,240 shading units, 320 TMUs, and 112 ROPs. The B200 SXM6 also has 592 tensor cores, compared to 320 on the RTX 4080 SUPER, and the RTX 4080 SUPER adds 80 RT cores, a feature the B200 SXM6 lacks entirely. Pixel rate favors the RTX 4080 SUPER at 285.6 GPixel/s versus 43.92 GPixel/s for the B200 SXM6, while texture rate favors the B200 SXM6 at 1,083.4 GTexel/s versus 816.0 GTexel/s. FP32 and FP16 performance each stand at 69.34 TFLOPS (1:1) for the B200 SXM6, against 52.22 TFLOPS (1:1) for the RTX 4080 SUPER.

The B200 SXM6 has no display outputs and supports no graphics APIs, as DirectX, OpenGL, and Vulkan are all marked N/A. The RTX 4080 SUPER supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, with display outputs of 1x HDMI 2.1 and 3x DisplayPort 1.4a. Interface differences place the B200 SXM6 on PCIe 6.0 x16 and the RTX 4080 SUPER on PCIe 4.0 x16.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA B200 SXM6 delivers 69.34 TFLOPS in FP32, while the GeForce RTX 4080 SUPER provides 52.22 TFLOPS, a difference of about 33% in favor of the server part.

Q: What memory capacities do these cards offer?

A: The B200 SXM6 uses 180 GB of HBM3e, while the RTX 4080 SUPER uses 16 GB of GDDR6X.

Q: Are there any display outputs on the B200 SXM6?

A: No. The B200 SXM6 is recorded with no display outputs, while the RTX 4080 SUPER has 1x HDMI 2.1 and 3x DisplayPort 1.4a.

Q: What is the power requirement for each card?

A: The B200 SXM6 has a TDP of 1,000 W with a suggested PSU of 1,400 W. The RTX 4080 SUPER has a TDP of 320 W with a suggested PSU of 700 W.

Q: Which card has ray tracing cores?

A: The RTX 4080 SUPER includes 80 RT cores. The B200 SXM6 has no RT cores recorded in the database.

Q: What is the bus interface for each?

A: The B200 SXM6 uses PCIe 6.0 x16. The RTX 4080 SUPER uses PCIe 4.0 x16.

The Verdict

The data indicates the B200 SXM6 is a compute accelerator with massive memory and throughput but no graphics output or consumer API support. Its 69.34 TFLOPS FP32, 8.19 TB/s bandwidth, and 180 GB HBM3e make it suitable for workloads that prioritize raw compute and large data sets. The RTX 4080 SUPER, with 52.22 TFLOPS FP32, 736.3 GB/s bandwidth, and 16 GB GDDR6X, delivers graphics rendering, ray tracing, and DirectX 12 Ultimate support. The RTX 4080 SUPER’s benchmark percentile of 86 against all GPUs indicates it outperforms the vast majority of recorded hardware, while the B200 SXM6’s percentile of 50 reflects its lack of benchmark entries rather than its capability.

The production status differs: the B200 SXM6 is active, while the RTX 4080 SUPER is end-of-life. Release dates place the B200 SXM6 at 2024-10-31 and the RTX 4080 SUPER at 2024-01-30. The B200 SXM6 lists a launch MSRP of 34,999 USD, and the RTX 4080 SUPER lists 999 USD. The B200 SXM6’s predecessor is Server Hopper and successor is Server Rubin, while the RTX 4080 SUPER’s predecessor is GeForce 30 and successor is GeForce 50.

Specification Differences

| Field | NVIDIA B200 SXM6 | NVIDIA GeForce RTX 4080 SUPER |

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

| Chip | GB100 | AD103 |

| Architecture | Blackwell | Ada Lovelace |

| Generation | Server Blackwell (Bxx) | GeForce 40 |

| Transistors | 208,000 million | 45,900 million |

| Die Size | 1628 mm² | 379 mm² |

| Transistor Density | 127.8M / mm² | 121.1M / mm² |

| Base Clock | 120 MHz | 2295 MHz |

| Boost Clock | 1830 MHz | 2550 MHz |

| Memory Size | 180 GB | 16 GB |

| Memory Type | HBM3e | GDDR6X |

| Memory Bus Width | 8192 bit | 256 bit |

| Memory Bandwidth | 8.19 TB/s | 736.3 GB/s |

| Shading Units | 18944 | 10240 |

| TMUs | 592 | 320 |

| ROPs | 24 | 112 |

| RT Cores | null | 80 |

| Tensor Cores | 592 | 320 |

| Pixel Rate | 43.92 GPixel/s | 285.6 GPixel/s |

| Texture Rate | 1,083.4 GTexel/s | 816.0 GTexel/s |

| FP32 | 69.34 TFLOPS | 52.22 TFLOPS |

| FP16 | 69.34 TFLOPS (1:1) | 52.22 TFLOPS (1:1) |

| TDP | 1000 W | 320 W |

| Slot Width | SXM Module | Triple-slot |

| Power Connectors | null | 1x 16-pin |

| Suggested PSU | 1400 W | 700 W |

| Bus Interface | PCIe 6.0 x16 | PCIe 4.0 x16 |

| Display Outputs | No outputs | 1x HDMI 2.1, 3x DisplayPort 1.4a |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | null | 310 mm x 140 mm x 61 mm |

| Production Status | Active | End-of-life |

| Release Date | 2024-10-31 | 2024-01-30 |

| Predecessor | Server Hopper | GeForce 30 |

| Successor | Server Rubin | GeForce 50 |

| Launch MSRP | 34,999 USD | 999 USD |

Where Each One Wins

The B200 SXM6 wins in raw compute throughput. Its FP32 and FP16 performance of 69.34 TFLOPS exceeds the RTX 4080 SUPER’s 52.22 TFLOPS by roughly 33%. Its texture rate of 1,083.4 GTexel/s outpaces the RTX 4080 SUPER’s 816.0 GTexel/s. Memory bandwidth of 8.19 TB/s versus 736.3 GB/s makes the B200 SXM6 the clear choice for data-heavy workloads, and its 180 GB capacity dwarfs the 16 GB on the RTX 4080 SUPER. The 8,192-bit bus versus 256-bit bus further reinforces this advantage. The B200 SXM6 also has more shading units (18,944 vs. 10,240) and more tensor cores (592 vs. 320).

The RTX 4080 SUPER wins in graphics-oriented metrics. Its pixel rate of 285.6 GPixel/s is over six times higher than the B200 SXM6’s 43.92 GPixel/s. It has 112 ROPs compared to 24, and includes 80 RT cores where the B200 SXM6 has none. Its base and boost clocks are substantially higher (2,295 MHz and 2,550 MHz versus 120 MHz and 1,830 MHz). It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the B200 SXM6 supports no graphics APIs. Display outputs exist only on the RTX 4080 SUPER. Its TDP of 320 W and suggested PSU of 700 W are far lower than the B200 SXM6’s 1,000 W and 1,400 W, and its 16-pin power connector and triple-slot form factor fit standard consumer systems.

Benchmark evidence from the database shows the RTX 4080 SUPER performs competitively against its nearest rivals, with a less than one percent delta to the RTX 4080 and under three percent deltas to the AMD Radeon Pro W5700X, AMD Radeon RX 6750 GRE 12 GB, and AMD Radeon 8060S. The B200 SXM6 has no benchmark scores to compare, so its measured performance remains unquantified.

The data suggests a clear split: the B200 SXM6 targets server workloads requiring massive memory, high bandwidth, and sustained compute, while the RTX 4080 SUPER serves desktop graphics, rendering, and ray tracing with lower power and physical footprint requirements. The absence of shared benchmark tests leaves their relative performance unresolved, but the architectural records define distinct application domains.