AMD Radeon 860M vs NVIDIA B300 Comparison

Where Each One Wins

The recorded data splits these two GPUs into entirely different performance classes, with no direct head-to-head benchmark overlap. The AMD Radeon 860M is an integrated graphics processor (IGP) designed for portable devices, and it has two benchmark scores in the database: a Geekbench OpenCL score of 22,759 and a Geekbench Vulkan score of 30,043. Its average benchmark score is 26,401, placing it in the 72nd percentile of all GPUs tracked.

The NVIDIA B300, by contrast, is a server-class accelerator with no benchmark scores recorded in the database. Its average benchmark score is listed as 0, and it sits in the 50th percentile. This means the database has no measured performance data for the B300, so any comparison of application wins must rely on the architectural specifications and the B300's theoretical throughput figures.

Where the 860M wins is in the integrated, low-power segment. It is an IGP with a 15 W TDP, designed to be built into a processor package. The B300 cannot compete in that category because it is an SXM module with a 1400 W TDP and no display outputs, making it a dedicated compute accelerator for servers. The 860M also supports display outputs (portable device dependent), while the B300 has no outputs at all.

The B300 wins in raw compute capability. Its FP32 throughput is 76.99 TFLOPS, its FP16 throughput is 1,231.8 TFLOPS, and it has 592 tensor cores. The 860M has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores, with an FP32 rating of 3.072 TFLOPS. The B300's memory subsystem is also overwhelmingly larger: 144 GB of HBM3e on a 4096-bit bus with 4.10 TB/s bandwidth, whereas the 860M uses system-shared memory with bandwidth that depends on the host system.

In terms of generation and market positioning, the 860M is part of the Navi III IGP (Strix Point Mobile) generation, released on 2025-02-28, while the B300 is from the Server Blackwell (Bxx) generation, released on 2025-09-10. The B300's predecessor is Server Hopper and its successor is Server Rubin; the 860M's predecessor is Navi II IGP and it has no successor listed.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon 860M has an average benchmark score of 26,401, while the NVIDIA B300 has an average benchmark score of 0 because no benchmarks are recorded for it in the database.

Q: What are the recorded benchmark scores for the AMD Radeon 860M?

A: The 860M scored 22,759 in Geekbench OpenCL and 30,043 in Geekbench Vulkan. The B300 has no benchmark scores listed.

Q: How do the memory capacities compare?

A: The NVIDIA B300 has 144 GB of HBM3e memory on a 4096-bit bus with 4.10 TB/s bandwidth. The AMD Radeon 860M uses system-shared memory, with its bandwidth dependent on the host system.

Q: What are the power requirements for each GPU?

A: The AMD Radeon 860M has a TDP of 15 W and uses no power connectors. The NVIDIA B300 has a TDP of 1400 W and a suggested PSU of 1800 W.

Q: Which GPU supports display outputs?

A: The AMD Radeon 860M supports display outputs, though they are portable device dependent. The NVIDIA B300 has no display outputs.

Q: What are the process nodes for these chips?

A: The AMD Radeon 860M uses a 4 nm process from TSMC. The NVIDIA B300 uses a 5 nm process from TSMC.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the AMD Radeon 860M and the NVIDIA B300, and the wins count for each is 0. However, the available data allows for a comparison of measured performance for the 860M and theoretical specifications for the B300.

The 860M's Geekbench OpenCL score of 22,759 and Vulkan score of 30,043 produce an average of 26,401. That average places it in the 72nd percentile of all GPUs. Its nearest rivals in the database include the NVIDIA GeForce MX550 with an average score of 26,421 and a delta of -0.1%, the NVIDIA GeForce RTX 5060 with an average score of 26,331 and a delta of 0.3%, the AMD Radeon RX 5700 XT 50th Anniversary with an average score of 26,553 and a delta of -0.6%, and the NVIDIA RTX A4000 with an average score of 26,683 and a delta of -1.1%. These deltas show the 860M is within about 1% of these discrete GPUs in average benchmark performance.

The B300 has no benchmarks, so its nearest rivals list is empty and its percentile is 50. Its FP32 throughput of 76.99 TFLOPS is roughly 25 times the 860M's 3.072 TFLOPS. Its texture rate of 1,202.9 GTexel/s is about 12.5 times the 860M's 96.00 GTexel/s. The pixel rates are closer: the B300 delivers 48.77 GPixel/s versus the 860M's 48.00 GPixel/s. The B300 has 18,944 shading units versus the 860M's 512, and 592 tensor cores versus none listed for the 860M.

The B300's FP16 throughput of 1,231.8 TFLOPS is based on a 16:1 ratio, while the 860M's FP16 is 3.072 TFLOPS with a 1:1 ratio. The B300 also has 592 TMUs versus 32 on the 860M, and 24 ROPs versus 16. The B300's memory bandwidth of 4.10 TB/s is not directly comparable to the 860M's system-dependent shared memory.

Specification Differences

The two GPUs differ in nearly every recorded specification. The AMD Radeon 860M uses the Krackan Point chip with RDNA 3.5 architecture on a 4 nm process, while the NVIDIA B300 uses the GB110 chip with Blackwell Ultra architecture on a 5 nm process, both from TSMC.

Clock speeds: the 860M has a base clock of 600 MHz and a boost clock of 3000 MHz. The B300 has a base clock of 1665 MHz and a boost clock of 2032 MHz, with memory clocked at 2000 MHz or 8 Gbps effective.

Memory: the 860M uses system-shared memory with system-dependent bandwidth. The B300 has 144 GB of HBM3e, a 4096-bit bus width, and 4.10 TB/s bandwidth.

Compute units: the 860M has 512 shading units, 32 TMUs, 16 ROPs, and 8 RT cores. The B300 has 18,944 shading units, 592 TMUs, 24 ROPs, and 592 tensor cores, with no RT core count listed.

Rates: the 860M has a pixel rate of 48.00 GPixel/s and a texture rate of 96.00 GTexel/s. The B300 has a pixel rate of 48.77 GPixel/s and a texture rate of 1,202.9 GTexel/s. FP32 is 3.072 TFLOPS for the 860M and 76.99 TFLOPS for the B300. FP16 is 3.072 TFLOPS (1:1) for the 860M and 1,231.8 TFLOPS (16:1) for the B300.

Power and physical: the 860M has a TDP of 15 W, is an IGP, uses no power connectors, and has a PCIe 4.0 x8 interface. The B300 has a TDP of 1400 W, is an SXM Module, has a suggested PSU of 1800 W, and uses a PCIe 5.0 x16 interface.

APIs: the 860M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The B300 has no API support listed for DirectX, OpenGL, or Vulkan.

Transistors: the B300 has 104,000 million transistors; the 860M's transistor count is unknown.

Architecture Differences

The AMD Radeon 860M is built on RDNA 3.5, the latest graphics architecture in the Navi III IGP line for Strix Point Mobile. It is a 4 nm part from TSMC, with no transistor count listed. It has 8 ray tracing cores and no tensor cores. Its FP16 throughput matches its FP32 throughput at a 1:1 ratio, indicating that it does not use a dedicated tensor path for reduced-precision math. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

The NVIDIA B300 is built on Blackwell Ultra, the architecture for the Server Blackwell (Bxx) generation. It is a 5 nm part from TSMC with 104,000 million transistors. It has 592 tensor cores, which are specialized for matrix math, and its FP16 throughput of 1,231.8 TFLOPS is 16 times its FP32 throughput, indicating a 16:1 ratio that reflects the tensor core acceleration. No ray tracing core count is listed for the B300. It has no listed API support for DirectX, OpenGL, or Vulkan, which aligns with its server role.

The 860M's predecessor is Navi II IGP, and it has no successor. The B300's predecessor is Server Hopper, and its successor is Server Rubin. The 860M was released on 2025-02-28, and the B300 was released on 2025-09-10. The 860M is an integrated part with no slot width, while the B300 is an SXM Module. The 860M uses PCIe 4.0 x8, and the B300 uses PCIe 5.0 x16.

The memory architectures are fundamentally different. The 860M relies on system-shared memory, meaning its performance scales with the host laptop or mini PC's RAM. The B300 has dedicated 144 GB of HBM3e with a 4096-bit bus, giving it 4.10 TB/s of bandwidth that does not depend on any external system memory.

The Verdict

The data indicates that these two GPUs serve completely different markets and should not be compared as alternatives. The AMD Radeon 860M is an integrated graphics processor for portable devices, with a 15 W TDP, no power connectors, and display outputs. It has measured benchmark scores: 22,759 in Geekbench OpenCL and 30,043 in Geekbench Vulkan, averaging 26,401 and placing it in the 72nd percentile. Its nearest rivals in the database are discrete mobile and desktop GPUs like the GeForce MX550, RTX 5060, RX 5700 XT 50th Anniversary, and RTX A4000, all within about 1% of its average score. This means the 860M delivers performance comparable to those discrete parts despite being an IGP.

The NVIDIA B300 is a server accelerator with a 1400 W TDP, an SXM Module form factor, no display outputs, and no recorded benchmarks. Its average benchmark score is 0, and its percentile is 50. Its strengths are entirely in the specification sheet: 76.99 TFLOPS FP32, 1,231.8 TFLOPS FP16, 592 tensor cores, 144 GB of HBM3e, and 4.10 TB/s of memory bandwidth. These figures place it in a performance class that the 860M cannot approach, but the B300 also cannot function as a graphics output device.

For a user or system integrating a portable device, the 860M is the only viable option in this comparison because it is an IGP with display support and minimal power draw. For server-side compute workloads that require massive memory bandwidth and tensor throughput, the B300 is the only option because the 860M lacks the necessary compute resources and memory capacity. The database shows no head-to-head measurements between them, and the wins count for each is 0, which is consistent with their disjoint market positions. The 860M is a capable integrated solution for its class, and the B300 is a high-end server part with no measured graphics benchmarks recorded.