NVIDIA B200 SXM6 vs NVIDIA Switch 2 GPU Comparison

FAQ

Q: What are the core architectural differences between the NVIDIA B200 SXM6 and the NVIDIA Switch 2 GPU?

A: The B200 SXM6 uses the GB100 chip built on a 5 nm process at TSMC, featuring the Blackwell architecture. The Switch 2 GPU uses the GA10B chip on an 8 nm process at Samsung, based on the older Ampere architecture. The B200 is a server-class module, while the Switch 2 GPU is a console-oriented design.

Q: How do the memory subsystems compare?

A: The B200 SXM6 has 180 GB of HBM3e memory on a 8192-bit bus, delivering 8.19 TB/s of bandwidth. The Switch 2 GPU has 12 GB of LPDDR5X on a 128-bit bus, delivering 102.4 GB/s. This represents a massive gap in both capacity and bandwidth.

Q: Which GPU has higher clock speeds?

A: The Switch 2 GPU has a base clock of 561 MHz and a boost clock of 1400 MHz, while the B200 SXM6 has a base clock of 120 MHz and a boost clock of 1830 MHz. Despite the lower base clock, the B200's boost clock is significantly higher.

Q: What are the FP32 and FP16 performance figures?

A: The B200 SXM6 delivers 69.34 TFLOPS for FP32 and 69.34 TFLOPS for FP16 with a 1:1 ratio. The Switch 2 GPU delivers 4.301 TFLOPS for FP32 and 8.602 TFLOPS for FP16 with a 2:1 ratio, meaning its FP16 throughput is double its FP32 rate.

Q: What is the power consumption difference?

A: The B200 SXM6 has a TDP of 1000 W with a suggested PSU of 1400 W. The Switch 2 GPU has a TDP of 40 W. This is a 25-fold difference in thermal design power.

Q: Do both GPUs support standard graphics APIs?

A: No. The B200 SXM6 has no API support listed for DirectX, OpenGL, or Vulkan, and has no display outputs. The Switch 2 GPU supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, though it also has no display outputs.

Architecture Differences

The NVIDIA B200 SXM6 and the NVIDIA Switch 2 GPU occupy entirely different segments of the hardware landscape. The B200 SXM6 belongs to the Server Blackwell (Bxx) generation, built around the GB100 chip. It uses a 5 nm process at TSMC, packing 208,000 million transistors onto a die of 1628 mm², resulting in a transistor density of 127.8 million per square millimeter. This is a data-center accelerator designed for compute workloads, evidenced by its SXM Module slot width and PCIe 6.0 x16 bus interface.

The Switch 2 GPU, by contrast, is part of the Console GPU (Nintendo) generation, using the GA10B chip on an 8 nm process at Samsung. Its die size is 200 mm², and its transistor count is listed as unknown. It is a compact, low-power design with physical dimensions of 272 mm in length, 116 mm in height, and 14 mm in width. The architecture is Ampere, which is one generation older than Blackwell.

The B200 SXM6 has 18,944 shading units, 592 TMUs, and 24 ROPs. It also includes 592 tensor cores, but no dedicated RT cores are listed. The Switch 2 GPU has 1,536 shading units, 48 TMUs, and 16 ROPs, along with 12 RT cores and 48 tensor cores. This means the B200 has roughly 12 times the shading units and TMUs, but the Switch 2 GPU brings dedicated ray tracing hardware, which the B200 does not list.

Memory architecture differs fundamentally as well. The B200 uses HBM3e with 180 GB capacity, an 8192-bit bus, and 8.19 TB/s bandwidth. The Switch 2 uses LPDDR5X with 12 GB, a 128-bit bus, and 102.4 GB/s. The memory clock on the B200 is 2000 MHz with 8 Gbps effective, while the Switch 2 runs at 800 MHz with 6.4 Gbps effective.

The B200 SXM6 has no display outputs and no graphics API support, confirming its role as a compute accelerator. The Switch 2 GPU also has no display outputs, but it does list DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support. The B200's release date is 2024-10-31, while the Switch 2 GPU's release date is 2025-06-04.

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark entries, and neither GPU has an average benchmark score above zero. However, the raw compute specifications provide a clear comparison of relative capability.

In FP32 throughput, the B200 SXM6 delivers 69.34 TFLOPS, which is more than 16 times the 4.301 TFLOPS of the Switch 2 GPU. In FP16, the B200 again delivers 69.34 TFLOPS, while the Switch 2 reaches 8.602 TFLOPS. The B200's FP16 performance is roughly 8 times higher, but the Switch 2's 2:1 FP16 ratio means it doubles its FP32 rate, a trait typical of consumer-oriented Ampere designs.

Texture rate shows a similar gap. The B200 achieves 1,083.4 GTexel/s versus 67.20 GTexel/s for the Switch 2, a factor of about 16. Pixel rate is 43.92 GPixel/s for the B200 and 22.40 GPixel/s for the Switch 2, a smaller but still substantial 1.96 times difference. The B200 has only 24 ROPs despite its large chip, which limits its pixel throughput relative to its other capabilities.

Memory bandwidth is where the B200 pulls ahead most dramatically. Its 8.19 TB/s is 80 times the 102.4 GB/s of the Switch 2. This is a direct consequence of the 8192-bit bus versus 128-bit bus and the use of HBM3e versus LPDDR5X. For memory-bound workloads, this difference is decisive.

The B200 also has a higher boost clock at 1830 MHz versus 1400 MHz, but the Switch 2 has a much higher base clock at 561 MHz versus 120 MHz. The B200's low base clock suggests aggressive power management, while its high boost clock indicates substantial headroom under load. The Switch 2's smaller power envelope of 40 W versus 1000 W means it operates in a completely different thermal class.

Both GPUs sit at the 50th percentile in the database's percentileVsAllGpus ranking, and both have an average benchmark score of zero. This indicates that neither has accumulated measurable benchmark results in the database, so the comparison relies entirely on specification-derived metrics.

Specification Differences

The two GPUs differ in nearly every measurable specification. The process node is 5 nm for the B200 versus 8 nm for the Switch 2. The foundry is TSMC for the B200 and Samsung for the Switch 2. Transistor count is 208,000 million for the B200 and unknown for the Switch 2. Die size is 1628 mm² versus 200 mm².

Clock speeds differ across the board. The B200 has a base clock of 120 MHz and a boost of 1830 MHz. The Switch 2 has a base of 561 MHz and a boost of 1400 MHz. Memory clock is 2000 MHz with 8 Gbps effective on the B200, versus 800 MHz with 6.4 Gbps effective on the Switch 2.

Memory configuration shows a 180 GB HBM3e setup on the B200 versus 12 GB LPDDR5X on the Switch 2. Bus width is 8192 bit versus 128 bit. Bandwidth is 8.19 TB/s versus 102.4 GB/s.

Compute resources differ sharply. The B200 has 18,944 shading units, 592 TMUs, and 24 ROPs. The Switch 2 has 1,536 shading units, 48 TMUs, and 16 ROPs. The B200 has 592 tensor cores and no listed RT cores. The Switch 2 has 12 RT cores and 48 tensor cores.

Rates and throughput figures favor the B200 in all cases. Pixel rate is 43.92 GPixel/s versus 22.40 GPixel/s. Texture rate is 1,083.4 GTexel/s versus 67.20 GTexel/s. FP32 is 69.34 TFLOPS versus 4.301 TFLOPS. FP16 is 69.34 TFLOPS versus 8.602 TFLOPS.

Power consumption is 1000 W for the B200 with a suggested PSU of 1400 W. The Switch 2 has a TDP of 40 W and no suggested PSU listed. The B200 uses a PCIe 6.0 x16 bus interface, while the Switch 2 has no bus interface listed.

The B200 has no display outputs, no API support, and is an SXM Module. The Switch 2 also has no display outputs but supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. It has physical dimensions of 272 mm by 116 mm by 14 mm, while the B200 has no dimensions listed.

Release dates are 2024-10-31 for the B200 and 2025-06-04 for the Switch 2. The B200's predecessor is Server Hopper and its successor is Server Rubin. The Switch 2 has neither a predecessor nor a successor listed. The B200 has a launch MSRP of 34,999 USD, and the Switch 2 has a launch MSRP of 449 USD.

The Verdict

The data indicates that the NVIDIA B200 SXM6 and the NVIDIA Switch 2 GPU are designed for completely different purposes, and the specification sheet confirms they should not be viewed as competitors. The B200 SXM6 is a server accelerator with a 1000 W TDP, 180 GB of HBM3e, and a 8192-bit memory bus. The Switch 2 GPU is a console chip with a 40 W TDP, 12 GB of LPDDR5X, and a 128-bit bus.

For compute-heavy workloads such as training large models or running scientific simulations, the B200 SXM6 is the clear choice based on its 69.34 TFLOPS FP32 performance, 8.19 TB/s bandwidth, and 208,000 million transistors. Its architecture is one generation ahead, and its memory subsystem is in a different class entirely. The lack of display outputs and graphics API support confirms it is not intended for rendering or gaming.

For gaming or graphics-oriented tasks, the Switch 2 GPU has the appropriate feature set. It includes 12 RT cores for ray tracing, supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, and operates within a 40 W power envelope. Its FP16 throughput of 8.602 TFLOPS is higher than its FP32 rate, which suits certain graphics and compute paths. The physical dimensions of 272 mm by 116 mm by 14 mm make it a compact solution, whereas the B200's SXM Module form factor requires server infrastructure.

The B200's launch MSRP of 34,999 USD reflects its enterprise positioning. The Switch 2's launch MSRP of 449 USD places it in the consumer console segment. Neither GPU has benchmark scores in the database, so real-world performance cannot be verified from recorded data, but the specification differences are stark enough to guide selection.

Users requiring maximum compute density, massive memory bandwidth, and high throughput should select the B200 SXM6. Users needing a low-power GPU with ray tracing support and standard graphics APIs should select the Switch 2 GPU. The two products do not overlap in intended use cases, and the data supports that conclusion without ambiguity.