AMD Radeon 840M vs NVIDIA GB10 Comparison

Head-to-Head Benchmarks

The recorded database contains no direct head-to-head benchmark comparisons between the AMD Radeon 840M and the NVIDIA GB10. The AMD Radeon 840M has no benchmark entries, no average score, and no nearest rivals listed. The NVIDIA GB10, by contrast, has two recorded benchmark results: a Geekbench OpenCL score of 120,137 and a Geekbench Vulkan score of 114,648, producing an average benchmark score of 117,393.

The NVIDIA GB10 sits at the 95th percentile among all GPUs in the database. Its nearest rival, the NVIDIA RTX 4000 SFF Ada Generation, posts an average score of 117,088, placing the GB10 0.3% ahead. Against the AMD Radeon PRO W7700, which scores 118,976, the GB10 trails by 1.3%. The GB10 also leads the NVIDIA Tesla V100 SXM2 16 GB (114,395) by 2.6% and the NVIDIA RTX A5500 Mobile (113,944) by 3.0%. These deltas are modest, indicating the GB10 performs within a tight competitive band around its peers.

Since the AMD Radeon 840M lacks any benchmark scores in the database, no quantitative comparison of compute performance, graphics throughput, or ray tracing capability can be made between the two parts. The data confirms zero wins for either product in direct head-to-head testing, as no such tests exist. The analysis must therefore rely on architectural specifications and the GB10's measured results to characterize each product's position.

Architecture Differences

The AMD Radeon 840M is built on the Krackan Point chip using RDNA 3.5 architecture, classified under the Navi III IGP generation for Strix Point Mobile. It uses a 4 nm process at TSMC. The NVIDIA GB10 uses the GB20B chip with Blackwell 2.0 architecture, belonging to the Server Blackwell (Bxx) generation, fabricated on a 5 nm process, also at TSMC, with a die size of 382 mm².

The AMD part is an integrated graphics processor with 256 shading units, 16 texture mapping units, and 8 raster operation pipelines. It includes 4 ray tracing cores and no tensor cores. The NVIDIA GB10 is also classified as an IGP but is a far larger implementation: 6,144 shading units, 384 TMUs, 48 ROPs, 48 ray tracing cores, and 384 tensor cores. The shading unit count difference is 24-fold, and the RT core count is 12-fold higher on the GB10.

Clock behavior differs substantially. The AMD Radeon 840M has a base clock of 400 MHz and a boost clock of 2900 MHz. The NVIDIA GB10 runs at a base of 1665 MHz and boosts to 2418 MHz. Despite the GB10's lower boost figure, its massive execution width produces far higher throughput. The AMD part delivers 1,484.8 GFLOPS FP32 and the same 1,484.8 GFLOPS FP16 (1:1 ratio). The NVIDIA GB10 outputs 29.71 TFLOPS FP32 and 29.71 TFLOPS FP16 (1:1), which is roughly 20 times the FP32 throughput of the AMD chip.

Memory architecture is fundamentally different. The AMD Radeon 840M uses system shared memory, with the size, type, bus width, and bandwidth all dependent on the host system. The NVIDIA GB10 has 128 GB of dedicated LPDDR5X memory on a 256-bit bus, delivering 273.2 GB/s of bandwidth. The memory clock is listed as 1067 MHz with 8.5 Gbps effective data rate. Pixel and texture rates follow the same pattern: the GB10 reaches 116.1 GPixel/s and 928.5 GTexel/s, while the AMD part manages 23.20 GPixel/s and 46.40 GTexel/s.

Power and interface specifications also diverge. The AMD Radeon 840M has a 15 W TDP, uses PCIe 4.0 x8, and requires no power connectors. The NVIDIA GB10 has a 140 W TDP, uses PCIe 5.0 x16, and lists a suggested PSU of 300 W. The GB10 has physical dimensions of 150 mm by 51 mm by 150 mm, while the AMD part has no recorded dimensions. Both are classified as IGP slot width, and both use no power connectors.

API support differs completely. The AMD Radeon 840M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA GB10 lists N/A for DirectX, OpenGL, and Vulkan, reflecting its server-oriented positioning with no consumer graphics API exposure. Display outputs on the AMD part are portable device dependent; the GB10 has a single HDMI output. The GB10's predecessor is Server Hopper and its successor is Server Rubin, while the AMD part's predecessor is Navi II IGP with no successor listed. Release dates place the AMD Radeon 840M at February 28, 2025, and the NVIDIA GB10 at October 14, 2025.

Where Each One Wins

The NVIDIA GB10 wins decisively on raw compute throughput. Its FP32 output of 29.71 TFLOPS versus 1,484.8 GFLOPS on the AMD Radeon 840M indicates a 20-fold advantage in general-purpose shader work. The texture rate of 928.5 GTexel/s versus 46.40 GTexel/s gives the GB10 a 20x lead in texture-heavy workloads. Pixel throughput of 116.1 GPixel/s versus 23.20 GPixel/s shows a 5x advantage in fill-rate-bound scenarios. The 128 GB memory capacity and 273.2 GB/s bandwidth dwarf the system-dependent shared memory of the AMD part, which has no fixed bandwidth figure in the database.

The AMD Radeon 840M wins on power efficiency and integration simplicity. Its 15 W TDP is substantially lower than the GB10's 140 W TDP. The AMD part is designed for portable devices with system-dependent display outputs, while the GB10 is a server-class IGP with a fixed 150 mm by 51 mm by 150 mm footprint and a single HDMI output. The AMD chip also carries full consumer API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4), whereas the GB10 has no recorded API support for any of those standards.

For gaming and client graphics workloads, the AMD Radeon 840M is the only one of the two with DirectX support, making it suitable for Windows-based gaming applications. The GB10's N/A API entries exclude it from that use case entirely. For compute, AI, and server workloads, the GB10's tensor cores (384 of them) and large memory pool give it a clear functional advantage, though no benchmark data exists for the AMD part to quantify the gap in practice.

The percentile data reinforces this split: the GB10 ranks at the 95th percentile among all GPUs, while the AMD Radeon 840M sits at the 50th percentile. That percentile ranking for the AMD part comes without any benchmark scores, indicating it is a placeholder position rather than a measured result. The GB10's average benchmark score of 117,393 places it in the upper tier of the database.

FAQ

Q: Which GPU has a higher FP32 compute throughput?

A: The NVIDIA GB10 delivers 29.71 TFLOPS FP32, while the AMD Radeon 840M provides 1,484.8 GFLOPS FP32. The GB10's throughput is approximately 20 times higher.

Q: What memory configurations do the two GPUs use?

A: The AMD Radeon 840M uses system shared memory with size, type, bus width, and bandwidth all dependent on the host system. The NVIDIA GB10 has 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth.

Q: Which GPU supports DirectX 12 Ultimate?

A: Only the AMD Radeon 840M supports DirectX 12 Ultimate (12_2). The NVIDIA GB10 lists N/A for DirectX, OpenGL, and Vulkan.

Q: What are the TDP ratings for each GPU?

A: The AMD Radeon 840M has a 15 W TDP. The NVIDIA GB10 has a 140 W TDP and lists a suggested PSU of 300 W.

Q: How does the NVIDIA GB10 compare to its nearest rivals in benchmark scores?

A: The GB10 has an average benchmark score of 117,393. It is 0.3% ahead of the NVIDIA RTX 4000 SFF Ada Generation (117,088), 1.3% behind the AMD Radeon PRO W7700 (118,976), 2.6% ahead of the NVIDIA Tesla V100 SXM2 16 GB (114,395), and 3.0% ahead of the NVIDIA RTX A5500 Mobile (113,944).

Q: What is the release date and process node for each GPU?

A: The AMD Radeon 840M was released on February 28, 2025, and uses a 4 nm TSMC process. The NVIDIA GB10 was released on October 14, 2025, and uses a 5 nm TSMC process with a 382 mm² die size.

The Verdict

The database shows two products with almost no overlap in intended use. The AMD Radeon 840M is a low-power integrated GPU for portable devices, with a 15 W TDP, system shared memory, and full consumer graphics API support including DirectX 12 Ultimate. Its 256 shading units and 4 ray tracing cores target light client workloads. The NVIDIA GB10 is a server-class Blackwell part with 6,144 shading units, 384 tensor cores, 48 ray tracing cores, 128 GB of LPDDR5X memory, and a 140 W TDP. Its measured average benchmark score of 117,393 places it at the 95th percentile, and its nearest rival comparisons show it trading fractions of a percent with the RTX 4000 SFF Ada Generation and PRO W7700.

Since the AMD Radeon 840M has no recorded benchmarks, no direct performance comparison exists. The data supports choosing the AMD part for portable, battery-constrained systems requiring DirectX and Vulkan support. The data supports choosing the NVIDIA GB10 for compute-heavy server deployments where raw throughput, tensor core count, and large memory capacity are the defining requirements. The 20x FP32 difference, 128 GB versus shared memory, and API availability differences all point to separate markets. The GB10's launch MSRP is 3,999 USD; the AMD part has no listed launch MSRP. Neither product is a substitute for the other based on the recorded specifications and benchmark results.