AMD Radeon 840M vs NVIDIA N1X 40SM Comparison

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark results for the AMD Radeon 840M and the NVIDIA N1X 40SM. Neither part has any submitted benchmark scores in the database, and both carry an identical percentile ranking of 50 against all GPUs. Their average benchmark scores are both recorded as zero, which indicates that no performance measurements have been captured for either device at this time.

Without direct comparative measurements, the data cannot establish which part delivers higher frame rates in any specific workload. The absence of scores does not imply parity; it reflects a lack of recorded testing data. The database shows zero wins for either part in the head-to-head table, meaning no application-level results are available to compare rasterization, ray tracing, or compute performance.

What can be stated from the recorded specifications is the theoretical compute ceiling each part offers. The NVIDIA N1X 40SM lists an FP32 throughput of 24.02 TFLOPS, while the AMD Radeon 840M lists 1,484.8 GFLOPS (approximately 1.48 TFLOPS). The NVIDIA part also lists a pixel rate of 93.84 GPixel/s and a texture rate of 750.7 GTexel/s, compared to 23.20 GPixel/s and 46.40 GTexel/s for the AMD part. These figures describe raw processing capacity, not real-world benchmark outcomes, and they should not be read as a substitute for measured performance.

The database records the NVIDIA part as having 5,120 shading units, 320 texture mapping units, and 40 render output units. The AMD part lists 256 shading units, 16 TMUs, and 8 ROPs. These structural differences align with the large gap in theoretical fill rates and floating-point throughput, but again, no benchmark data confirms how these specifications translate into application performance.

Architecture Differences

The two integrated GPUs come from different manufacturers and architectures. The AMD Radeon 840M uses the RDNA 3.5 architecture, built on a 4 nm process at TSMC, and belongs to the Navi III IGP generation (Strix Point Mobile). Its chip is called Krackan Point. The NVIDIA N1X 40SM uses the Blackwell 2.0 architecture, built on a 5 nm process at TSMC, and belongs to the Blackwell IGP generation (N1x) with the GB20B chip.

Process node differences are modest but present: 4 nm versus 5 nm, both fabricated by TSMC. The AMD part operates with a base clock of 400 MHz and a boost clock of 2900 MHz. The NVIDIA part has a base clock of 741 MHz and a boost clock of 2346 MHz. The NVIDIA chip has a recorded die size of 382 mm², while the AMD die size is listed as unknown.

Memory configuration differs substantially. The AMD Radeon 840M uses system-shared memory with a system-dependent bandwidth and no dedicated VRAM. The NVIDIA N1X 40SM features 128 GB of LPDDR5X memory on a 256-bit bus, delivering 273.2 GB/s of bandwidth. The NVIDIA memory clock is recorded as 1067 MHz with 8.5 Gbps effective transfer rate.

The NVIDIA part includes 40 ray tracing cores and 160 tensor cores. The AMD part includes 4 ray tracing cores and no tensor cores. API support differs as well: the AMD Radeon 840M lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the NVIDIA N1X 40SM lists N/A for DirectX, OpenGL, and Vulkan. The bus interface also differs: the AMD part uses PCIe 4.0 x8, while the NVIDIA part uses PCIe 5.0 x16.

Display outputs are listed as portable-device-dependent for the AMD part and as 1x HDMI for the NVIDIA part. The AMD part has a TDP of 15 W; the NVIDIA TDP is unknown. Both are integrated GPUs with no power connectors and no slot width beyond IGP. The AMD part was released on 2025-02-28, and the NVIDIA part on 2026-05-31.

FAQ

Q: Which GPU has a higher boost clock?

A: The AMD Radeon 840M has a boost clock of 2900 MHz, while the NVIDIA N1X 40SM has a boost clock of 2346 MHz.

Q: How much memory does each GPU have?

A: The AMD Radeon 840M uses system-shared memory with system-dependent bandwidth. The NVIDIA N1X 40SM has 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth.

Q: Do both GPUs support ray tracing?

A: Yes, both list ray tracing cores. The AMD Radeon 840M has 4 RT cores, and the NVIDIA N1X 40SM has 40 RT cores.

Q: What is the process node for each GPU?

A: The AMD Radeon 840M is built on a 4 nm process at TSMC. The NVIDIA N1X 40SM is built on a 5 nm process at TSMC.

Q: Which GPU has more shading units?

A: The NVIDIA N1X 40SM has 5,120 shading units, compared to 256 shading units on the AMD Radeon 840M.

Q: Are there any recorded benchmark scores for either GPU?

A: No. Both GPUs have an average benchmark score of zero, no entries in the head-to-head table, and no nearest rivals listed in the database.

The Verdict

The recorded data does not support a performance verdict because no benchmarks exist for either part. The database lists the average benchmark score as zero for both the AMD Radeon 840M and the NVIDIA N1X 40SM, and the head-to-head table is empty. Any claim that one part outperforms the other would rely on unrecorded data.

What the database does show is a large gap in theoretical specifications. The NVIDIA N1X 40SM lists an FP32 throughput of 24.02 TFLOPS, a texture rate of 750.7 GTexel/s, and a pixel rate of 93.84 GPixel/s. The AMD Radeon 840M lists 1,484.8 GFLOPS, 46.40 GTexel/s, and 23.20 GPixel/s. The NVIDIA part also lists 20 times the shading units, 20 times the TMUs, and 5 times the ROPs compared to the AMD part, along with 40 RT cores versus 4, and 160 tensor cores versus none.

These specification gaps would normally suggest a large performance difference in compute-heavy and graphics-heavy workloads, but the database explicitly records no benchmark results to confirm this. The AMD part has a higher boost clock (2900 MHz versus 2346 MHz) and a smaller process node (4 nm versus 5 nm), but higher clocks and a smaller node do not automatically offset a 16-fold difference in shading units.

The release dates differ by over a year: the AMD part launched on 2025-02-28, and the NVIDIA part on 2026-05-31. Both are listed as Active in production status. Neither has a launch MSRP recorded in the database.

The verdict from the data is straightforward: the NVIDIA N1X 40SM possesses a substantially larger compute and memory configuration on paper, while the AMD Radeon 840M offers a lower-power, system-shared-memory design with a higher boost clock. Without benchmark scores, the database cannot declare a winner in actual application performance.

Specification Differences

The following fields differ between the AMD Radeon 840M and the NVIDIA N1X 40SM:

• Architecture: RDNA 3.5 versus Blackwell 2.0
• Generation: Navi III IGP (Strix Point Mobile) versus Blackwell IGP (N1x)
• Process node: 4 nm versus 5 nm, both TSMC
• Die size: unknown versus 382 mm²
• Base clock: 400 MHz versus 741 MHz
• Boost clock: 2900 MHz versus 2346 MHz
• Memory size: System Shared versus 128 GB
• Memory type: System Shared versus LPDDR5X
• Memory bus width: System Shared versus 256 bit
• Memory bandwidth: System Dependent versus 273.2 GB/s
• Memory clock: not listed versus 1067 MHz 8.5 Gbps effective
• Shading units: 256 versus 5,120
• TMUs: 16 versus 320
• ROPs: 8 versus 40
• RT cores: 4 versus 40
• Tensor cores: none versus 160
• Pixel rate: 23.20 GPixel/s versus 93.84 GPixel/s
• Texture rate: 46.40 GTexel/s versus 750.7 GTexel/s
• FP32: 1,484.8 GFLOPS versus 24.02 TFLOPS
• FP16: 1,484.8 GFLOPS (1:1) versus 24.02 TFLOPS (1:1)
• TDP: 15 W versus unknown
• Bus interface: PCIe 4.0 x8 versus PCIe 5.0 x16
• Display outputs: Portable Device Dependent versus 1x HDMI
• API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.4 versus N/A for all three
• Release date: 2025-02-28 versus 2026-05-31

Fields that match include manufacturer foundry (TSMC), slot width (IGP), power connectors (None), production status (Active), and the absence of a launch MSRP.

Where Each One Wins

The database does not contain benchmark results that would allow a direct win-based comparison. The winsA and winsB fields are both zero, and no head-to-head entries exist. Any use-case split must therefore rely on the listed specifications rather than measured performance.

The AMD Radeon 840M shows a higher boost clock at 2900 MHz and a lower TDP at 15 W. It also runs on a smaller 4 nm process node. These characteristics point toward a design intended for low-power, portable devices where thermal and power constraints are primary. The system-shared memory architecture with system-dependent bandwidth reinforces this interpretation; the GPU draws on the host system's memory rather than dedicated VRAM.

The NVIDIA N1X 40SM lists 128 GB of dedicated LPDDR5X memory on a 256-bit bus with 273.2 GB/s of bandwidth. That memory configuration, combined with 5,120 shading units, 320 TMUs, 40 ROPs, 40 RT cores, and 160 tensor cores, describes a part aimed at heavier graphics and compute workloads. The FP32 throughput of 24.02 TFLOPS and the texture rate of 750.7 GTexel/s are both far above the AMD part's figures. The PCIe 5.0 x16 interface also provides a wider data path than the AMD part's PCIe 4.0 x8.

The AMD part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part lists N/A for all three APIs. For software ecosystems that depend on those APIs, the AMD part has documented compatibility, whereas the NVIDIA part does not have recorded API support in the database.

In terms of production status, both parts are Active. The AMD part's predecessor is listed as Navi II IGP, while the NVIDIA part has no predecessor recorded. The NVIDIA part has no successor listed, and neither does the AMD part.

Based strictly on the recorded specifications, the NVIDIA N1X 40SM appears oriented toward tasks that demand high throughput: large memory pools, high bandwidth, many shading units, and dedicated tensor and ray tracing hardware. The AMD Radeon 840M appears oriented toward integration in low-power mobile systems, with a modest 15 W TDP, a high boost clock relative to its base, and shared memory. The database cannot confirm these orientations with benchmark scores, so these are inferences from specifications only.