AMD Radeon 780M vs NVIDIA B200 SXM6 Comparison

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the AMD Radeon 780M and the NVIDIA B200 SXM6. This absence is itself informative. The 780M carries three recorded benchmark scores across different test suites, while the B200 SXM6 has no recorded benchmarks in the database at all. Its average benchmark score registers as zero, and its percentile ranking sits at 50, which reflects the lack of measurement data rather than a performance evaluation.

Looking at the available measurements for the 780M, the data shows a 3DMark Steel Nomad DX12 score of 480, a Geekbench OpenCL score of 18,602, and a Geekbench Vulkan score of 33,683. These scores position the 780M at the 61st percentile among all GPUs in the database, with an average benchmark score of 17,588. The nearest rivals for the 780M include the AMD Radeon Pro 560 at an average score of 17,551 (0.2% behind), the NVIDIA GeForce RTX 4060 at 17,639 (0.3% ahead), the AMD Radeon HD 7790 at 17,666 (0.4% ahead), and the AMD Radeon Pro 460 at 17,509 (0.5% behind). The 780M sits within a tight cluster of performance, with all four rivals within half a percentage point of its average score.

For the B200 SXM6, the absence of benchmark entries means no direct comparison can be drawn from measured scores. The database lists no nearest rivals for this part, reinforcing that this is a compute accelerator with a different measurement profile than a consumer or workstation graphics product. The data does not support any claim of comparative performance in the benchmarks traditionally used for graphics cards.

Architecture Differences

The two products come from different manufacturing processes and design philosophies. The AMD Radeon 780M uses the Phoenix chip built on RDNA 3.0 architecture, fabricated on a 4 nm process at TSMC. The NVIDIA B200 SXM6 uses the GB100 chip built on Blackwell architecture, fabricated on a 5 nm process, also at TSMC. The 780M belongs to the Navi III IGP generation with a Phoenix chip, while the B200 SXM6 belongs to the Server Blackwell generation.

Transistor counts differ dramatically. The 780M contains 25,390 million transistors on a 178 mm² die, yielding a transistor density of 142.6 million per square millimeter. The B200 SXM6 contains 208,000 million transistors on a 1,628 mm² die, with a density of 127.8 million per square millimeter. The B200 SXM6 packs over eight times the transistor count into a die roughly nine times larger.

Clock behavior shows a stark contrast. The 780M runs at a base clock of 800 MHz with a boost clock of 2,900 MHz. The B200 SXM6 has a base clock of 120 MHz and a boost clock of 1,830 MHz. The 780M boosts to a much higher frequency, while the B200 SXM6 operates at lower clocks but with a much wider execution engine.

Memory architecture is fundamentally different. The 780M uses system shared memory, with no dedicated VRAM, relying on the host system's memory with bandwidth that depends on the platform. The B200 SXM6 carries 180 GB of HBM3e memory on an 8,192-bit bus, delivering 8.19 TB/s of bandwidth. The memory clock for the B200 SXM6 is listed as 2,000 MHz with 8 Gbps effective data rate.

The compute resources diverge substantially. The 780M has 768 shading units, 48 texture mapping units, 32 ROPs, and 12 ray tracing cores. The B200 SXM6 has 18,944 shading units, 592 texture mapping units, 24 ROPs, and 592 tensor cores. The B200 SXM6 does not list ray tracing cores in the database. The 780M delivers 92.80 GPixel/s pixel rate and 139.2 GTexel/s texture rate, with FP32 performance of 8.909 TFLOPS and FP16 performance of 8.909 TFLOPS at a 1:1 ratio. The B200 SXM6 delivers 43.92 GPixel/s pixel rate and 1,083.4 GTexel/s texture rate, with FP32 performance of 69.34 TFLOPS and FP16 performance of 69.34 TFLOPS at a 1:1 ratio.

Power and form factor differences are substantial. The 780M carries a 15 W TDP, fits an IGP slot width, and requires no power connectors. The B200 SXM6 has a 1,000 W TDP, uses an SXM Module slot width, and the database suggests a 1,400 W power supply. The 780M connects via PCIe 4.0 x8 and supports display outputs dependent on the motherboard. The B200 SXM6 uses PCIe 6.0 x16 and has no display outputs.

API support differs completely. The 780M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The B200 SXM6 lists N/A for DirectX, OpenGL, and Vulkan, reflecting its server compute orientation rather than graphics rendering focus.

FAQ

Q: Which product has higher FP32 compute performance?

A: The NVIDIA B200 SXM6 delivers 69.34 TFLOPS FP32, while the AMD Radeon 780M delivers 8.909 TFLOPS. The B200 SXM6 provides roughly 7.8 times the FP32 throughput.

Q: How much memory does each product have?

A: The AMD Radeon 780M uses system shared memory with no dedicated capacity, so its memory size and bandwidth depend on the host platform. The NVIDIA B200 SXM6 has 180 GB of HBM3e memory with 8.19 TB/s bandwidth across an 8,192-bit bus.

Q: What are the process nodes for these two chips?

A: The AMD Radeon 780M uses a 4 nm process at TSMC, while the NVIDIA B200 SXM6 uses a 5 nm process, also at TSMC.

Q: Does the NVIDIA B200 SXM6 support graphics APIs?

A: The database lists DirectX, OpenGL, and Vulkan as N/A for the B200 SXM6. The AMD Radeon 780M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the power consumption difference?

A: The AMD Radeon 780M has a 15 W TDP with no power connectors required. The NVIDIA B200 SXM6 has a 1,000 W TDP, and the database suggests a 1,400 W power supply.

Q: Are there benchmark results for the NVIDIA B200 SXM6?

A: The database contains no benchmark entries for the B200 SXM6. Its average benchmark score is listed as zero, and it has no nearest rivals recorded.

The Verdict

The recorded data draws a clear line between two products serving different purposes. The AMD Radeon 780M is a graphics processor with measurable benchmark results, API support for DirectX 12 Ultimate, OpenGL, and Vulkan, and display output capability. Its average benchmark score of 17,588 places it at the 61st percentile, with nearest rivals clustered within half a percentage point, indicating competitive positioning among integrated graphics and older discrete GPUs.

The NVIDIA B200 SXM6 is a server accelerator with no recorded benchmarks, no graphics API support, and no display outputs. Its transistor count of 208,000 million and memory bandwidth of 8.19 TB/s indicate a compute-focused design, but the database provides no performance measurements to quantify its capabilities relative to other products.

The data does not support a direct performance comparison because the benchmark suites that produced scores for the 780M have no corresponding entries for the B200 SXM6. The architectural differences, including memory type, power envelope, and form factor, point to fundamentally different deployment scenarios. The 780M fits into a low-power integrated graphics role, while the B200 SXM6 occupies a high-power server accelerator segment.

Specification Differences

| Specification | AMD Radeon 780M | NVIDIA B200 SXM6 |

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

| Architecture | RDNA 3.0 | Blackwell |

| Process Node | 4 nm | 5 nm |

| Transistors | 25,390 million | 208,000 million |

| Die Size | 178 mm² | 1,628 mm² |

| Transistor Density | 142.6M / mm² | 127.8M / mm² |

| Base Clock | 800 MHz | 120 MHz |

| Boost Clock | 2,900 MHz | 1,830 MHz |

| Memory Size | System Shared | 180 GB |

| Memory Type | System Shared | HBM3e |

| Memory Bus Width | System Shared | 8,192 bit |

| Memory Bandwidth | System Dependent | 8.19 TB/s |

| Shading Units | 768 | 18,944 |

| TMUs | 48 | 592 |

| ROPs | 32 | 24 |

| RT Cores | 12 | N/A |

| Tensor Cores | N/A | 592 |

| Pixel Rate | 92.80 GPixel/s | 43.92 GPixel/s |

| Texture Rate | 139.2 GTexel/s | 1,083.4 GTexel/s |

| FP32 | 8.909 TFLOPS | 69.34 TFLOPS |

| FP16 | 8.909 TFLOPS (1:1) | 69.34 TFLOPS (1:1) |

| TDP | 15 W | 1,000 W |

| Slot Width | IGP | SXM Module |

| Power Connectors | None | N/A |

| Suggested PSU | N/A | 1,400 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 6.0 x16 |

| Display Outputs | Motherboard Dependent | No outputs |

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

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Launch MSRP | N/A | 34,999 USD |

Where Each One Wins

The AMD Radeon 780M wins in scenarios involving graphics rendering and display output. Its support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 means it can handle traditional graphics workloads. The 780M also wins on power efficiency, with a 15 W TDP compared to the B200 SXM6's 1,000 W. Its higher pixel rate of 92.80 GPixel/s versus 43.92 GPixel/s suggests advantages in fill-rate-bound rendering tasks. The 780M also benefits from a much higher boost clock of 2,900 MHz versus 1,830 MHz.

The NVIDIA B200 SXM6 wins on raw compute throughput. Its FP32 performance of 69.34 TFLOPS is roughly eight times the 780M's 8.909 TFLOPS. Texture rate favors the B200 SXM6 at 1,083.4 GTexel/s versus 139.2 GTexel/s. Memory capacity and bandwidth are decisively in the B200 SXM6's favor, with 180 GB of HBM3e and 8.19 TB/s versus system shared memory with platform-dependent bandwidth. The B200 SXM6 also carries tensor cores, which the 780M lacks, and connects through PCIe 6.0 x16 versus PCIe 4.0 x8.

The transistor count difference, 208,000 million versus 25,390 million, indicates the B200 SXM6's scale advantage for massively parallel workloads. The 780M's 12 ray tracing cores give it hardware acceleration for ray-traced graphics, while the B200 SXM6 lists no ray tracing cores. The 780M's 32 ROPs exceed the B200 SXM6's 24 ROPs, another indicator of the integrated GPU's focus on final pixel output. The B200 SXM6 has 592 tensor cores, pointing toward machine learning and matrix operations, while the 780M has no tensor core hardware listed.

The B200 SXM6's form factor, SXM Module, and lack of display outputs position it for server installations where graphics output is unnecessary. The 780M's IGP form factor and motherboard-dependent display outputs fit client systems with integrated graphics. The launch MSRP for the B200 SXM6 is 34,999 USD, while the 780M has no launch MSRP recorded.