NVIDIA B200 SXM6 vs NVIDIA GeForce RTX 4070 SUPER Comparison

FAQ

Q: What are the core architectural identities of the B200 SXM6 and the RTX 4070 SUPER?

A: The B200 SXM6 is built on the Blackwell architecture with the GB100 chip, targeting the Server Blackwell (Bxx) generation. The RTX 4070 SUPER uses the Ada Lovelace architecture with the AD104 chip, belonging to the GeForce 40-series.

Q: How do their memory subsystems differ in capacity and technology?

A: The B200 SXM6 carries 180 GB of HBM3e across an 8192-bit bus, delivering 8.19 TB/s of bandwidth. The RTX 4070 SUPER has 12 GB of GDDR6X on a 192-bit bus, providing 504.2 GB/s.

Q: Which card has higher raw compute throughput in FP32 operations?

A: The B200 SXM6 delivers 69.34 TFLOPS of FP32 compute, which is roughly double the 35.48 TFLOPS of the RTX 4070 SUPER. Both cards operate at a 1:1 ratio for FP16 versus FP32.

Q: What is the difference in their physical form factors and power requirements?

A: The B200 SXM6 is an SXM module with no display outputs and a 1000 W TDP, requiring a 1400 W suggested PSU. The RTX 4070 SUPER is a dual-slot card with a 220 W TDP, a 550 W suggested PSU, and includes 1x HDMI 2.1 plus 3x DisplayPort 1.4a outputs.

Q: What is the production status and release timing for each product?

A: The B200 SXM6 is marked as Active production, released on 2024-10-31. The RTX 4070 SUPER is End-of-life, released on 2024-01-16, with its successor being the GeForce 50 series.

Q: How do their transistor counts and die sizes compare?

A: The B200 SXM6 integrates 208,000 million transistors on a 1628 mm² die, giving a density of 127.8M per mm². The RTX 4070 SUPER uses 35,800 million transistors on a 294 mm² die, with a density of 121.8M per mm².

Where Each One Wins

The recorded data splits cleanly by usage domain. The B200 SXM6 wins decisively on raw processing scale: its shading unit count of 18,944 versus 7,168, its 592 tensor cores versus 224, and its 592 TMUs versus 224 all point to a card built for massive parallel workloads. The FP32 throughput of 69.34 TFLOPS versus 35.48 TFLOPS confirms this, as does the texture rate of 1,083.4 GTexel/s versus 554.4 GTexel/s. For compute-heavy tasks, server-side inference, or training environments, the B200 SXM6 is the clear leader in every measurable compute category.

The RTX 4070 SUPER wins where the B200 SXM6 cannot participate. The B200 has no display outputs and no DirectX, OpenGL, or Vulkan API support. The RTX 4070 SUPER supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, plus it has 56 dedicated RT cores. Its pixel rate of 198.0 GPixel/s versus 43.92 GPixel/s for the B200 shows a significant advantage in rasterization throughput. The RTX 4070 SUPER also wins on practical efficiency metrics: 220 W TDP versus 1000 W, dual-slot cooling versus SXM module, and a standard PCIe 4.0 x16 interface versus PCIe 6.0 x16.

The benchmark data only exists for the RTX 4070 SUPER, which shows an average benchmark score of 43,223 and a percentile ranking of 83 against all GPUs. The B200 SXM6 has no recorded benchmark scores and sits at the 50th percentile, indicating that the database currently has no direct performance measurements for the server card. The wins are therefore defined by specification dominance for the B200 and by practical usability plus measured results for the RTX 4070 SUPER.

Architecture Differences

The B200 SXM6 uses the GB100 chip on a 5 nm process from TSMC, with 208,000 million transistors packed into a 1628 mm² die. The RTX 4070 SUPER uses the AD104 chip, also on a 5 nm TSMC process, but with 35,800 million transistors on a 294 mm² die. The transistor density is close: 127.8M per mm² for the B200 versus 121.8M per mm² for the RTX 4070 SUPER, showing that both are built on a mature 5 nm node, but the B200's die is over five times larger in area.

The B200 is designed as an SXM module, which means it has no display outputs and no consumer API support. Its memory interface is 8192 bits wide, which is 42 times wider than the 192-bit bus on the RTX 4070 SUPER. The B200 uses HBM3e memory stacked at a capacity of 180 GB, while the RTX 4070 SUPER uses 12 GB of GDDR6X. The memory clock difference is notable: the B200 runs at 2000 MHz with 8 Gbps effective, while the RTX 4070 SUPER runs at 1313 MHz with 21 Gbps effective. The bandwidth gap is enormous: 8.19 TB/s versus 504.2 GB/s.

The RTX 4070 SUPER includes 56 RT cores for hardware ray tracing, a feature class entirely absent from the B200's specification list. The tensor core counts differ by a factor of 2.6 in favor of the B200 (592 versus 224). The B200 also has a much higher shading unit count, 18,944 versus 7,168, but a drastically lower ROP count: 24 versus 80. This ROP disparity explains the pixel rate inversion where the RTX 4070 SUPER outputs 198.0 GPixel/s against the B200's 43.92 GPixel/s.

The bus interface differs by one generation: the B200 uses PCIe 6.0 x16, while the RTX 4070 SUPER uses PCIe 4.0 x16. The B200's clock behavior is unusual with a base clock of 120 MHz and a boost of 1830 MHz, indicating a design that scales aggressively under load. The RTX 4070 SUPER has a base clock of 1980 MHz and a boost of 2475 MHz, running at consistently higher frequencies.

Specification Differences

The B200 SXM6 and RTX 4070 SUPER diverge across nearly every specification field. The B200 has 18,944 shading units versus 7,168, 592 TMUs versus 224, and 24 ROPs versus 80. The tensor core count is 592 for the B200 and 224 for the RTX 4070 SUPER. The B200 has no RT cores listed, while the RTX 4070 SUPER has 56.

Memory capacity stands at 180 GB for the B200 against 12 GB for the RTX 4070 SUPER. The memory type is HBM3e for the B200 and GDDR6X for the RTX 4070 SUPER. Bus width is 8192 bits versus 192 bits, and bandwidth is 8.19 TB/s versus 504.2 GB/s. The memory clocks differ: 2000 MHz with 8 Gbps effective for the B200, 1313 MHz with 21 Gbps effective for the RTX 4070 SUPER.

The power envelope is the largest single specification gap. The B200 has a 1000 W TDP and requires a 1400 W suggested PSU, while the RTX 4070 SUPER has a 220 W TDP with a 550 W suggested PSU. The B200 is an SXM module with no power connector listed, while the RTX 4070 SUPER is dual-slot with a 1x 16-pin connector. The B200 has no display outputs; the RTX 4070 SUPER offers 1x HDMI 2.1 and 3x DisplayPort 1.4a.

PCIe interface generation differs: PCIe 6.0 x16 for the B200, PCIe 4.0 x16 for the RTX 4070 SUPER. API support is absent for the B200, while the RTX 4070 SUPER supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Physical dimensions are only recorded for the RTX 4070 SUPER: 267 mm length, 112 mm height, 42 mm width. The B200 has no dimension data.

The B200's launch MSRP is 34,999 USD. The RTX 4070 SUPER's launch MSRP is 599 USD. Production status differs: the B200 is Active, the RTX 4070 SUPER is End-of-life. Release dates are 2024-10-31 for the B200 and 2024-01-16 for the RTX 4070 SUPER.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for this pair. The only recorded benchmark scores belong to the RTX 4070 SUPER, which has ten separate test results. The 3DMark Steel Nomad DX12 test shows a score of 4,627. Geekbench OpenCL shows 172,795, and Geekbench Vulkan shows 205,624. Passmark results include DirectX 10 at 167, DirectX 11 at 273, DirectX 12 at 110, DirectX 9 at 344, G2D at 1,184, G3D at 29,995, and GPU Compute at 17,108.

The RTX 4070 SUPER's average benchmark score across these tests is 43,223, placing it at the 83rd percentile against all GPUs in the database. Its nearest rivals confirm its position: the Quadro M6000 24 GB scores 43,262 (a delta of -0.1%), the RTX 5050 Mobile scores 43,268 (delta -0.1%), the Quadro M6000 scores 43,301 (delta -0.2%), and the RTX 4090 Mobile scores 43,667 (delta -1%). The data shows the RTX 4070 SUPER sitting within 1% of all four nearest rivals, meaning its measured performance is tightly clustered with these alternatives.

The B200 SXM6 has zero benchmark scores and an average benchmark score of 0, giving it a 50th percentile ranking. This means the database currently has no measured performance data for the server card. The only basis for comparison is the specification sheet, which shows the B200 leading in FP32 compute (69.34 TFLOPS versus 35.48 TFLOPS), texture rate, memory bandwidth, and shading unit count. The RTX 4070 SUPER leads in pixel rate, ROP count, API compatibility, and power efficiency.

Given the absence of measured data for the B200, any performance comparison rests on architectural specifications. The B200's FP32 output is 1.95 times that of the RTX 4070 SUPER. Its texture rate is 1.95 times higher. Its memory bandwidth is 16.2 times higher. These ratios confirm the B200 as a compute-oriented device, while the RTX 4070 SUPER's 80 ROPs and 198.0 GPixel/s pixel rate confirm its rasterization focus. The RTX 4070 SUPER's 56 RT cores give it a hardware ray tracing capability that the B200 lacks entirely.