NVIDIA B200 SXM6 vs NVIDIA GeForce RTX 4070 AD103 Comparison

Head-to-Head Benchmarks

The recorded database contains no direct benchmark scores for either the NVIDIA B200 SXM6 or the NVIDIA GeForce RTX 4070 AD103. Both entries show an average benchmark score of zero, and the head-to-head benchmark table is empty. Consequently, there are no numerical deltas, percentile advantages, or win counts to report between these two accelerators. The B200 SXM6 holds zero wins and the RTX 4070 AD103 holds zero wins in the comparison dataset.

What the data does provide is a stark contrast in theoretical compute ceilings, which serves as a proxy for expected performance in compute-heavy workloads. The B200 SXM6 delivers 69.34 TFLOPS of FP32 throughput and 69.34 TFLOPS of FP16 throughput (1:1 ratio). The RTX 4070 AD103 delivers 29.15 TFLOPS in both FP32 and FP16 (also 1:1). That puts the B200 at roughly 2.38 times the raw floating-point throughput of the RTX 4070 in both precisions. In absolute terms, the B200 leads by 40.19 TFLOPS in FP32 and the same 40.19 TFLOPS in FP16.

Pixel throughput tells the opposite story. The RTX 4070 AD103 reaches 158.4 GPixel/s, while the B200 SXM6 manages only 43.92 GPixel/s. That is a 114.48 GPixel/s advantage for the GeForce card, or roughly 3.61 times higher pixel fill rate. Texture throughput also favors the server part: the B200 posts 1,083.4 GTexel/s versus 455.4 GTexel/s for the RTX 4070, a lead of 628.0 GTexel/s, or about 2.38 times higher.

Memory bandwidth is another decisive split. The B200 SXM6 uses 180 GB of HBM3e across an 8192-bit bus for 8.19 TB/s of bandwidth. The RTX 4070 AD103 uses 12 GB of GDDR6X across a 192-bit bus for 504.2 GB/s. The B200 leads by 7.686 TB/s, which is roughly 16.25 times higher bandwidth. This is not a close race by any measured metric; it is a segmentation of purpose.

Architecture Differences

The B200 SXM6 is built on the Blackwell architecture with the GB100 chip, fabricated on a 5 nm process at TSMC. It contains 208,000 million transistors on a 1628 mm² die, yielding a transistor density of 127.8 million per mm². The RTX 4070 AD103 uses the Ada Lovelace architecture with the AD103 chip, also on a 5 nm TSMC process, but with 45,900 million transistors on a 379 mm² die for a density of 121.1 million per mm². The B200 die is roughly 4.3 times larger in area and holds roughly 4.5 times more transistors.

Core counts diverge sharply. The B200 SXM6 has 18,944 shading units, 592 TMUs, and 24 ROPs. The RTX 4070 AD103 has 5,888 shading units, 184 TMUs, and 64 ROPs. The B200 has 3.22 times more shading units and 3.22 times more TMUs, but the RTX 4070 has 2.67 times more ROPs. The B200 also carries 592 tensor cores, while the RTX 4070 has 184 tensor cores, a 3.22 times advantage for the server chip. The RTX 4070 additionally features 46 ray tracing cores; the B200 SXM6 lists no RT core count in the database.

Clock behavior is inverted. The B200 SXM6 runs at a 120 MHz base and 1830 MHz boost. The RTX 4070 AD103 runs at 1920 MHz base and 2475 MHz boost. The GeForce card boosts 645 MHz higher and has a 1800 MHz higher base clock. Memory clocks also differ: the B200 uses 2000 MHz with 8 Gbps effective, while the RTX 4070 uses 1313 MHz with 21 Gbps effective.

The B200 SXM6 is a 1000 W TDP part with a suggested PSU of 1400 W, using an SXM module slot width and PCIe 6.0 x16 interface. It has no display outputs and lists no API support (DirectX, OpenGL, Vulkan all marked N/A). The RTX 4070 AD103 is a 200 W TDP part with a suggested PSU of 550 W, dual-slot width, and a 1x 16-pin power connector. It uses PCIe 4.0 x16, outputs 1x HDMI 2.1 and 3x DisplayPort 1.4a, and supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Physical dimensions for the RTX 4070 are 240 mm length, 110 mm height, and 40 mm width; the B200 lists no dimensions.

Production status differs as well. The B200 SXM6 is marked Active and released on 2024-10-31, with predecessor Server Hopper and successor Server Rubin. The RTX 4070 AD103 is marked End-of-life and released on 2024-02-29, with predecessor GeForce 30 and successor GeForce 50.

Where Each One Wins

Based on raw compute metrics, the B200 SXM6 wins decisively in FP32 and FP16 throughput, texture rate, memory capacity, memory bandwidth, and tensor core count. The 69.34 TFLOPS FP32 figure is more than double the RTX 4070's 29.15 TFLOPS. The 8.19 TB/s bandwidth dwarfs the 504.2 GB/s of the GeForce card, and the 180 GB memory capacity is 15 times larger than 12 GB. These numbers point to workloads that saturate massive parallel compute and require huge resident datasets: training large models, dense linear algebra, and high-throughput inference.

The RTX 4070 AD103 wins in pixel fill rate, ROP count, clock speeds, and feature completeness. Its 158.4 GPixel/s versus 43.92 GPixel/s indicates stronger rasterization throughput per cycle, and the 64 ROPs versus 24 ROPs supports that. Higher base and boost clocks (1920 MHz and 2475 MHz versus 120 MHz and 1830 MHz) suggest better latency-sensitive performance. The RTX 4070 also has 46 ray tracing cores, display outputs, and full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support. The B200 has none of those APIs and no display outputs.

The B200 uses PCIe 6.0 x16, which offers a newer bus generation than the RTX 4070's PCIe 4.0 x16. The B200 also has a higher transistor density at 127.8M per mm² versus 121.1M per mm². The RTX 4070 has a much lower TDP at 200 W versus 1000 W, and a lower suggested PSU at 550 W versus 1400 W, which points to very different deployment contexts.

FAQ

Q: Which GPU has higher FP32 compute?

A: The B200 SXM6 delivers 69.34 TFLOPS FP32, while the RTX 4070 AD103 delivers 29.15 TFLOPS FP32. The B200 leads by 40.19 TFLOPS.

Q: What is the memory capacity difference?

A: The B200 SXM6 has 180 GB of HBM3e, while the RTX 4070 AD103 has 12 GB of GDDR6X. The B200 holds 168 GB more memory.

Q: Which card has better pixel fill rate?

A: The RTX 4070 AD103 achieves 158.4 GPixel/s, which is 114.48 GPixel/s higher than the B200 SXM6's 43.92 GPixel/s.

Q: What are the boost clocks of each?

A: The B200 SXM6 boosts to 1830 MHz, while the RTX 4070 AD103 boosts to 2475 MHz. The GeForce card boosts 645 MHz higher.

Q: Does the B200 support display outputs or graphics APIs?

A: No. The B200 SXM6 has no display outputs and lists DirectX, OpenGL, and Vulkan as N/A. The RTX 4070 AD103 supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 with 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs.

Q: What are the power requirements?

A: The B200 SXM6 has a 1000 W TDP with a 1400 W suggested PSU. The RTX 4070 AD103 has a 200 W TDP with a 550 W suggested PSU.

The Verdict

The data describes two accelerators with almost no functional overlap. The B200 SXM6 is a server module for compute density: 69.34 TFLOPS FP32, 8.19 TB/s bandwidth, 180 GB memory, and 592 tensor cores on a 1628 mm² die. It has no display outputs, no consumer graphics APIs, and requires a 1400 W PSU. The RTX 4070 AD103 is a dual-slot graphics card for rendering: 158.4 GPixel/s, 46 ray tracing cores, full DirectX 12 Ultimate support, and display outputs, all within a 200 W TDP.

Users who need massive parallel compute, large memory residency, or high-bandwidth data movement should select the B200 SXM6, based on its 2.38 times FP32 lead and 16.25 times memory bandwidth lead. Users who need rasterization, ray tracing, or a standard graphics output pipeline should select the RTX 4070 AD103, based on its 3.61 times pixel fill rate lead and its complete API support. The benchmark database currently records no direct head-to-head scores, so these conclusions rest entirely on architectural specifications and theoretical throughput figures. The B200 is Active production; the RTX 4070 is End-of-life, which also informs availability expectations.