AMD Radeon 880M vs NVIDIA B300 SXM6 AC Comparison

Head-to-Head Benchmarks

The only directly comparable measurement between these two parts in the database is the Geekbench OpenCL compute test. The NVIDIA B300 SXM6 AC scores 369,831, while the AMD Radeon 880M manages 31,285. That is a 91.5% deficit for the AMD part, meaning the B300 delivers roughly 11.8 times the raw OpenCL throughput. The delta is so large that the two products are not competing in the same performance class; the B300 is a server compute accelerator, while the 880M is an integrated graphics processor for portable devices.

Looking at the broader database averages tells the same story. The Radeon 880M has an average benchmark score of 8,436 across its recorded tests, which places it at the 43rd percentile of all GPUs. The B300 sits at the 100th percentile, with an average score of 369,831. In percentile terms, the B300 is effectively at the top of the entire database, while the 880M is just below the midpoint. The gap in raw compute is not incremental; it spans multiple orders of magnitude in certain workloads.

The Radeon 880M does have a wider set of recorded benchmark results. It has been tested in 3DMark Steel Nomad DX12, where it scores 535, and across several Passmark tests. Its Passmark G3D score is 7,615, its G2D score is 969, and its GPU compute score is 3,719. DirectX 9 and DirectX 11 Passmark results are 97 and 73 respectively, while DirectX 10 and DirectX 12 results are 31 and 32. Geekbench Vulkan is 40,006, which is higher than its OpenCL result of 31,285. These numbers show a part that is competent for lightweight 3D and general graphics work, but they are all dwarfed by the B300's single recorded OpenCL score.

The B300 has only one benchmark entry in the database, the Geekbench OpenCL test, but that single result is enough to establish its position. At 369,831, it sits 7% above the NVIDIA B200, which averages 345,482. It is 10.4% above the NVIDIA H200 NVL at 334,891, 16.3% above the AMD Instinct MI300X at 317,994, and 25% above the NVIDIA L40S at 295,763. Those deltas show a clear hierarchy among server accelerators, with the B300 at the top of that group. The Radeon 880M, by contrast, sits in a cluster with much older discrete mobile parts. Its nearest rivals are the NVIDIA GeForce GTX 675MX at 8,427 (0.1% behind the 880M), the NVIDIA GeForce MX330 at 8,458 (0.3% ahead), the AMD Radeon HD 8870M at 8,462 (0.3% ahead), and the AMD Radeon R9 M375X at 8,325 (1.3% behind). The 880M is essentially tied with those parts in average score, which puts its performance level in context: it is roughly comparable to a decade-old discrete mobile GPU, not a modern server accelerator.

The 880M's best recorded result relative to its own average is Geekbench Vulkan at 40,006, which is substantially higher than its OpenCL score. That suggests the architecture handles Vulkan workloads better than OpenCL in the database's measurements. The B300 has no Vulkan or DirectX results recorded, as its API support is listed as N/A for DirectX, OpenGL, and Vulkan. This is a compute-focused product, not a graphics-oriented one.

The Verdict

The data indicates that these two products should never be compared as alternatives for the same task. The NVIDIA B300 SXM6 AC is a 1,100 W server module with 288 GB of HBM3e memory, 76.99 TFLOPS of FP32 throughput, and a 100th percentile ranking. The AMD Radeon 880M is a 15 W IGP with system-shared memory, 4.454 TFLOPS of FP32, and a 43rd percentile ranking. The B300 leads by 91.5% in the only shared benchmark, but that lead is so large that it is not a meaningful contest; it is a category difference.

Who should pick the AMD Radeon 880M? The data shows it is the only one of the two with any graphics API support. It runs DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The B300 lists N/A for all three. The 880M also has display outputs, listed as portable device dependent, while the B300 has no outputs at all. Any workload that requires rendering to a screen, running a desktop environment, or using graphics APIs must go through the 880M or a similar part. The 880M's 43rd percentile ranking also means it is not a weak performer for its class; it sits just above the GTX 675MX and just below the MX330 and HD 8870M in average score.

Who should pick the NVIDIA B300 SXM6 AC? The data shows it is for compute workloads that run on OpenCL or similar accelerators. Its 288 GB of HBM3e memory and 8.19 TB/s bandwidth are far beyond anything the 880M can access, since the 880M relies on system-shared memory with system-dependent bandwidth. The B300's 18944 shading units, 592 tensor cores, and 592 TMUs give it a massive throughput advantage in parallel compute. Its 100th percentile ranking and its position 7% above the B200 in OpenCL confirm that it is a top-tier server part. The 1100 W TDP and 1500 W suggested PSU show that it requires a dedicated server platform, not a desktop or portable system.

The practical conclusion from the recorded data is simple. The 880M is for graphics and light compute in portable devices. The B300 is for server-side compute acceleration. Neither part can substitute for the other in its intended environment.

FAQ

Q: Which GPU has the higher Geekbench OpenCL score?

A: The NVIDIA B300 SXM6 AC scores 369,831, while the AMD Radeon 880M scores 31,285. The B300 leads by 91.5%.

Q: How does the Radeon 880M compare to its nearest rivals in average benchmark score?

A: The 880M averages 8,436. The NVIDIA GeForce GTX 675MX averages 8,427 (0.1% behind), the NVIDIA GeForce MX330 averages 8,458 (0.3% ahead), the AMD Radeon HD 8870M averages 8,462 (0.3% ahead), and the AMD Radeon R9 M375X averages 8,325 (1.3% behind).

Q: How does the B300 SXM6 AC compare to other server accelerators?

A: The B300 averages 369,831 in OpenCL. It is 7% above the NVIDIA B200 at 345,482, 10.4% above the NVIDIA H200 NVL at 334,891, 16.3% above the AMD Instinct MI300X at 317,994, and 25% above the NVIDIA L40S at 295,763.

Q: Which GPU supports graphics APIs?

A: The AMD Radeon 880M supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The NVIDIA B300 SXM6 AC lists N/A for DirectX, OpenGL, and Vulkan.

Q: How much memory does each GPU have?

A: The NVIDIA B300 SXM6 AC has 288 GB of HBM3e memory with an 8192-bit bus and 8.19 TB/s bandwidth. The AMD Radeon 880M has system-shared memory with system-dependent bandwidth.

Q: What is the percentile ranking for each GPU?

A: The AMD Radeon 880M is at the 43rd percentile of all GPUs. The NVIDIA B300 SXM6 AC is at the 100th percentile.

Specification Differences

The two parts differ in nearly every recorded specification. The AMD Radeon 880M uses the Strix Point chip with RDNA 3.5 architecture, built on a 4 nm process at TSMC. The NVIDIA B300 SXM6 AC uses the GB110 chip with Blackwell Ultra architecture, built on a 5 nm process at TSMC. The 880M has 34,000 million transistors on a 233 mm² die, for a density of 145.9M per mm². The B300 has 208,000 million transistors on a 1,628 mm² die, for a density of 127.8M per mm².

Clock speeds differ substantially. The 880M has a base clock of 400 MHz and a boost clock of 2,900 MHz. The B300 has a base clock of 1,665 MHz and a boost clock of 2,032 MHz. Memory configurations are completely different. The 880M uses system-shared memory with no dedicated VRAM, while the B300 has 288 GB of HBM3e on an 8192-bit bus with 8.19 TB/s bandwidth. The 880M's memory clock is listed as system shared, while the B300 runs at 2,000 MHz with 8 Gbps effective.

Compute unit counts show the scale difference. The 880M has 768 shading units, 48 TMUs, 16 ROPs, and 12 ray tracing cores. The B300 has 18,944 shading units, 592 TMUs, 24 ROPs, and 592 tensor cores. The B300 has no listed ray tracing cores. Pixel rate is similar despite the size gap: the 880M delivers 46.40 GPixel/s, while the B300 delivers 48.77 GPixel/s. Texture rate is far apart: 139.2 GTexel/s for the 880M versus 1,202.9 GTexel/s for the B300. FP32 throughput is 4.454 TFLOPS for the 880M and 76.99 TFLOPS for the B300. FP16 is 1:1 for both, at 4.454 TFLOPS and 76.99 TFLOPS respectively.

Power and physical specifications are equally divergent. The 880M has a 15 W TDP, an IGP slot width, no power connectors, and a PCIe 4.0 x8 interface. The B300 has a 1,100 W TDP, an SXM module slot width, a 1,500 W suggested PSU, and a PCIe 6.0 x16 interface. The 880M has display outputs described as portable device dependent; the B300 has no outputs. Release dates are also different: the 880M launched on 2024-07-14, the B300 on 2025-09-10. The B300 has both a predecessor (Server Hopper) and a successor (Server Rubin) listed, while the 880M lists only a predecessor (Navi II IGP).

Architecture Differences

The architectural split is clear from the recorded data. The AMD Radeon 880M is built on RDNA 3.5, the latest iteration of AMD's graphics architecture for integrated parts. It uses a 4 nm TSMC process and packs 34,000 million transistors into a 233 mm² die. The NVIDIA B300 SXM6 AC uses Blackwell Ultra, NVIDIA's server-oriented architecture, on a 5 nm TSMC process with 208,000 million transistors across a 1,628 mm² die. The node difference is small, but the die size difference is enormous, reflecting the B300's role as a large compute accelerator.

The 880M includes ray tracing cores (12 of them) and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. It is a full graphics architecture with display outputs. The B300 has no ray tracing cores listed, no graphics API support, and no display outputs. Instead, it has 592 tensor cores, which are designed for matrix and deep learning workloads. The B300 also has 592 TMUs versus 48 on the 880M, and 18,944 shading units versus 768. The B300's 24 ROPs are only slightly higher than the 880M's 16, which is consistent with its role as a compute part rather than a rasterizer.

Memory architecture is a fundamental difference. The 880M uses system-shared memory, meaning it borrows from the host system's RAM with bandwidth that depends on the platform. The B300 has dedicated 288 GB of HBM3e on an 8192-bit bus, delivering 8.19 TB/s of bandwidth. This is a server-class memory subsystem built for large data sets and high-throughput compute. The 880M's memory is portable-device dependent, while the B300's is fixed and enormous.

The transistor density figures are notable. The 880M achieves 145.9M transistors per mm² on 4 nm, while the B300 achieves 127.8M per mm² on 5 nm. Despite the lower density, the B300 has more than six times the total transistor count due to its much larger die. The B300's 208,000 million transistors make it one of the largest chips in the database, while the 880M's 34,000 million is typical for an integrated part.

The API support difference is stark. The 880M supports modern graphics APIs, including DirectX 12 Ultimate and Vulkan 1.4. The B300 lists N/A for DirectX, OpenGL, and Vulkan. This confirms that the B300 is not intended for traditional graphics rendering. Its compute interface is the relevant path, as shown by its OpenCL benchmark result.

Where Each One Wins

The AMD Radeon 880M wins in every scenario that involves graphics output. It is the only one of the two with display outputs, and the only one with DirectX, OpenGL, or Vulkan support. Any desktop, portable, or rendering workload that needs to present frames on a screen requires the 880M or a similar integrated part. Its 12 ray tracing cores and DirectX 12 Ultimate support mean it can handle modern graphics features in lightweight scenarios. Its 43rd percentile ranking, while modest, places it in a functional range for casual 3D and general GPU tasks.

The 880M also wins on power efficiency in the sense of absolute consumption. Its 15 W TDP is negligible compared to the B300's 1,100 W. It needs no power connectors and no dedicated PSU. The B300 requires a 1,500 W suggested PSU. For any system that cannot supply or cool a server-class accelerator, the 880M is the only viable option. Its PCIe 4.0 x8 interface is also far simpler to integrate than the B300's PCIe 6.0 x16 and SXM module form factor.

The NVIDIA B300 SXM6 AC wins in raw compute. Its OpenCL score of 369,831 is 91.5% ahead of the 880M's 31,285. Its FP32 throughput of 76.99 TFLOPS is more than 17 times the 880M's 4.454 TFLOPS. Its texture rate of 1,202.9 GTexel/s is more than eight times the 880M's 139.2 GTexel/s. Its 288 GB of HBM3e memory with 8.19 TB/s bandwidth is in a different class from system-shared memory. The B300's 100th percentile ranking means it outperforms virtually every other GPU in the database, while the 880M sits at the 43rd percentile.

The B300 also wins in server compute comparisons. It is 7% ahead of the B200, 10.4% ahead of the H200 NVL, 16.3% ahead of the Instinct MI300X, and 25% ahead of the L40S in OpenCL average score. That places it at the top of the recorded server accelerator hierarchy. The 880M, by contrast, is statistically tied with the GTX 675MX, MX330, HD 8870M, and R9 M375X, all of which are older or lower-tier parts.

The use-case split is therefore clean. The 880M is for graphics, display, and light compute in portable devices. The B300 is for heavy compute, tensor workloads, and large memory footprints in server environments. The data does not support any crossover scenario. A system that needs both graphics output and massive compute would require two separate devices, as no single product in this comparison covers both roles.