NVIDIA B200 SXM6 vs NVIDIA GeForce RTX 4080 Mobile Comparison

Head-to-Head Benchmarks

The recorded data contains no shared benchmark suite results for the NVIDIA B200 SXM6 and the NVIDIA GeForce RTX 4080 Mobile. The B200 SXM6 has no benchmark entries in the database, with an average benchmark score of zero and a percentile ranking of 50 against all GPUs. The RTX 4080 Mobile, by contrast, carries nine recorded benchmark scores, with an average benchmark score of 38,135 and a percentile ranking of 81.

Because the B200 SXM6 lacks any benchmark entries, direct head-to-head comparisons cannot be computed from the available information. The RTX 4080 Mobile delivers its strongest recorded result in Geekbench OpenCL, scoring 159,575, while its Geekbench Vulkan score reaches 145,807. In the Passmark suite, the GPU compute score is 11,191, and the overall G3D score is 24,926. These figures establish a baseline for the mobile part, but the absence of corresponding B200 SXM6 measurements means no delta percentages or win/loss counts can be derived.

The nearest rival data for the RTX 4080 Mobile provides context for its performance tier. The database lists the NVIDIA GeForce MX570 with an average score of 38,299 and a delta of -0.4%, indicating the RTX 4080 Mobile trails that part by a narrow margin. The NVIDIA GeForce RTX 5080 Mobile averages 38,349, with a delta of -0.6%, again a slight deficit. Conversely, the RTX 4080 Mobile leads the NVIDIA GeForce RTX 4070 by 1.3%, as that part scores 37,648, and it also leads the NVIDIA Tesla P4 by 1.3%, with that part scoring 37,628. These comparisons show the RTX 4080 Mobile sits in a tight band around 38,000 average points, within roughly one percentage point of its closest competitors.

For the B200 SXM6, the database records no nearest rivals, no benchmark scores, and no percentile performance relative to other server parts. The wins tally shows zero for both items, reflecting the lack of overlapping data rather than a qualitative judgment about either GPU's capabilities.

FAQ

Q: Does the NVIDIA B200 SXM6 have any recorded benchmark scores?

A: No. The database lists zero benchmarks for the B200 SXM6, with an average benchmark score of 0 and a percentile ranking of 50 against all GPUs.

Q: What is the highest benchmark score for the NVIDIA GeForce RTX 4080 Mobile?

A: The highest recorded score is 159,575 in Geekbench OpenCL. The next highest is 145,807 in Geekbench Vulkan.

Q: How does the RTX 4080 Mobile compare to its nearest rivals in average benchmark score?

A: The RTX 4080 Mobile averages 38,135. It trails the NVIDIA GeForce MX570 by 0.4% and the NVIDIA GeForce RTX 5080 Mobile by 0.6%, while leading the NVIDIA GeForce RTX 4070 by 1.3% and the NVIDIA Tesla P4 by 1.3%.

Q: What is the percentile ranking of the RTX 4080 Mobile versus all GPUs?

A: The RTX 4080 Mobile ranks at the 81st percentile, which places it above the B200 SXM6's 50th percentile, though the B200 SXM6 has no benchmark data to support its ranking.

Q: Are there any head-to-head benchmark results shared between the two GPUs?

A: No. The head-to-head benchmarks list is empty, and neither GPU shows any wins in direct comparison because no common tests exist in the database.

Q: What is the B200 SXM6's average benchmark score?

A: The B200 SXM6 has an average benchmark score of 0, meaning the database has no performance measurements for this part.

Where Each One Wins

The NVIDIA B200 SXM6 has no benchmark wins recorded, as the database contains no test results for it. Its strengths must be assessed from its raw specifications rather than measured performance. The B200 SXM6 uses a GB100 chip on the Blackwell architecture, built on a 5 nm process at TSMC, with 208,000 million transistors on a 1628 mm² die. It delivers 69.34 TFLOPS in both FP32 and FP16, with a pixel rate of 43.92 GPixel/s and a texture rate of 1,083.4 GTexel/s. These figures point to a part designed for compute-heavy workloads, but without benchmark scores, no direct performance validation exists.

The NVIDIA GeForce RTX 4080 Mobile wins in every measurable category because it is the only GPU of the two with recorded data. Its benchmark results show strong OpenCL and Vulkan performance, with scores of 159,575 and 145,807 respectively. In the Passmark suite, it records 24,926 in G3D, 11,191 in GPU compute, and lower scores in legacy DirectX tests: 286 in DirectX 9, 244 in DirectX 11, 157 in DirectX 10, and 96 in DirectX 12. The G2D score is 929. These results give the RTX 4080 Mobile a percentile ranking of 81, placing it comfortably above the B200 SXM6's percentile of 50, though that ranking for the B200 is based on no actual measurements.

For use-case analysis, the RTX 4080 Mobile fits mobile graphics workloads where its 110 W TDP and portable form factor matter. Its 12 GB GDDR6 memory with a 192-bit bus and 432.0 GB/s bandwidth supports gaming and general GPU tasks. The B200 SXM6, with 180 GB HBM3e memory on an 8192-bit bus and 8.19 TB/s bandwidth, targets server-side compute, but the database offers no performance evidence to confirm that role.

Specification Differences

The two GPUs differ across nearly every specification field. The B200 SXM6 uses the GB100 chip, while the RTX 4080 Mobile uses the AD104 chip. The B200 SXM6 belongs to the Server Blackwell (Bxx) generation, whereas the RTX 4080 Mobile is part of the GeForce 40 Mobile generation. Both use a 5 nm process at TSMC, but transistor counts diverge sharply: the B200 SXM6 packs 208,000 million transistors, the RTX 4080 Mobile has 35,800 million. Die size also differs, with the B200 SXM6 at 1628 mm² versus 294 mm² for the RTX 4080 Mobile. Transistor density is slightly higher on the B200 SXM6 at 127.8M per mm², compared to 121.8M per mm² for the mobile part.

Clock speeds show a notable inversion. The B200 SXM6 has a base clock of 120 MHz and a boost clock of 1830 MHz, while the RTX 4080 Mobile runs a base clock of 1290 MHz and a boost clock of 1665 MHz. Memory clocks differ as well: the B200 SXM6 lists 2000 MHz with 8 Gbps effective, while the RTX 4080 Mobile lists 2250 MHz with 18 Gbps effective. Memory capacity is dramatically different, with the B200 SXM6 offering 180 GB of HBM3e and the RTX 4080 Mobile offering 12 GB of GDDR6. Bus width is 8192 bits on the B200 SXM6 versus 192 bits on the RTX 4080 Mobile, yielding bandwidths of 8.19 TB/s and 432.0 GB/s respectively.

Shader resources differ substantially. The B200 SXM6 has 18,944 shading units, 592 TMUs, and 24 ROPs, while the RTX 4080 Mobile has 7,424 shading units, 232 TMUs, and 80 ROPs. The B200 SXM6 reports 592 tensor cores and no RT cores, while the RTX 4080 Mobile has 232 tensor cores and 58 RT cores. Pixel rate favors the RTX 4080 Mobile at 133.2 GPixel/s versus 43.92 GPixel/s for the B200 SXM6, but texture rate favors the B200 SXM6 at 1,083.4 GTexel/s versus 386.3 GTexel/s. FP32 and FP16 performance both favor the B200 SXM6 at 69.34 TFLOPS, compared to 24.72 TFLOPS for the RTX 4080 Mobile.

Power and interface specifications also differ. The B200 SXM6 has a 1000 W TDP with a suggested PSU of 1400 W and uses an SXM Module slot, while the RTX 4080 Mobile has a 110 W TDP, no PSU suggestion, and uses an IGP slot with no power connectors. The bus interface is PCIe 6.0 x16 on the B200 SXM6 versus PCIe 4.0 x16 on the RTX 4080 Mobile. Display outputs are absent on the B200 SXM6, while the RTX 4080 Mobile lists "Portable Device Dependent" outputs. API support differs completely: the B200 SXM6 lists N/A for DirectX, OpenGL, and Vulkan, while the RTX 4080 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Release dates are also distinct, with the B200 SXM6 released on 2024-10-31 and the RTX 4080 Mobile released on 2023-01-02.

Architecture Differences

The architectural split between these two parts is fundamental. The B200 SXM6 uses the Blackwell architecture, specifically the GB100 chip, while the RTX 4080 Mobile uses the Ada Lovelace architecture on the AD104 chip. Blackwell targets server workloads, as indicated by the Server Blackwell (Bxx) generation and the absence of display outputs or API support. Ada Lovelace targets mobile graphics, with full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support.

The B200 SXM6's GB100 die is built with 208,000 million transistors, a 1628 mm² die size, and a transistor density of 127.8M per mm². It uses HBM3e memory in a 180 GB configuration across an 8192-bit bus, with a 2000 MHz memory clock delivering 8 Gbps effective. The core layout includes 18,944 shading units, 592 TMUs, 24 ROPs, and 592 tensor cores, with no RT cores listed. The base clock is 120 MHz with a boost of 1830 MHz, an unusually wide clock range suggesting a design optimized for sustained compute rather than burst performance. The power envelope is 1000 W, with a suggested PSU of 1400 W, and the slot is an SXM Module with PCIe 6.0 x16 connectivity.

The RTX 4080 Mobile's AD104 die uses 35,800 million transistors on a 294 mm² die, with a transistor density of 121.8M per mm². It employs 12 GB of GDDR6 memory on a 192-bit bus, with a 2250 MHz memory clock for 18 Gbps effective. The core configuration includes 7,424 shading units, 232 TMUs, 80 ROPs, 232 tensor cores, and 58 RT cores. The base clock is 1290 MHz with a boost of 1665 MHz. The TDP is 110 W, and the slot is IGP with no power connectors, using PCIe 4.0 x16. The presence of RT cores in the RTX 4080 Mobile enables hardware ray tracing, a feature absent from the B200 SXM6's specification list. The B200 SXM6's tensor core count is 592, more than double the RTX 4080 Mobile's 232, reflecting a server-oriented focus on matrix operations. The ROP count is reversed, with the RTX 4080 Mobile at 80 ROPs versus 24 on the B200 SXM6, which explains the mobile part's higher pixel rate despite lower shading unit counts.