NVIDIA GeForce RTX 4080 Mobile vs NVIDIA N1 16SM Comparison

The Verdict

The data presents a clear performance hierarchy. The NVIDIA GeForce RTX 4080 Mobile is a dedicated discrete graphics processor designed for high-end laptops. Its average benchmark score of 38,135 places it at the 81st percentile among all GPUs. The NVIDIA N1 16SM, an integrated graphics processor based on the Blackwell architecture, has no recorded benchmark scores, an average score of zero, and sits at the 50th percentile. Any user requiring measurable graphics performance for gaming, rendering, or compute workloads should select the RTX 4080 Mobile. The N1 16SM, with its unified memory architecture and IGP form factor, is positioned for systems where integration and power efficiency are priorities over raw graphics throughput.

The RTX 4080 Mobile delivers a substantial feature set with 7,424 shading units, 232 tensor cores, and 58 RT cores. The N1 16SM offers 2,048 shading units, 64 tensor cores, and 16 RT cores. The performance gap is quantified by the FP32 throughput: the RTX 4080 Mobile achieves 24.72 TFLOPS, while the N1 16SM reaches 9.609 TFLOPS. The RTX 4080 Mobile is also the only option with DirectX 12 Ultimate support, Vulkan 1.4, and OpenGL 4.6. The N1 16SM lists its API support as N/A, meaning its graphics capabilities are not exposed through those standard interfaces. For any application relying on established graphics APIs, the RTX 4080 Mobile is the only viable choice.

Architecture Differences

The two processors come from entirely different architecture families. The RTX 4080 Mobile uses the AD104 chip based on the Ada Lovelace architecture, fabricated by TSMC on a 5 nm process. The N1 16SM uses the GB20B chip based on the Blackwell 2.0 architecture, also fabricated by TSMC on a 5 nm process. Both share the same process node and foundry, but their transistor counts diverge sharply. The RTX 4080 Mobile contains 35,800 million transistors on a 294 mm² die, yielding a density of 121.8 million transistors per mm². The N1 16SM's transistor count is listed as unknown, but its die size is 382 mm², which is larger than the RTX 4080 Mobile's die.

The memory subsystems are fundamentally different. The RTX 4080 Mobile uses 12 GB of GDDR6 memory on a 192-bit bus, delivering 432.0 GB/s of bandwidth. The N1 16SM uses 128 GB of LPDDR5X memory on a 256-bit bus, but its bandwidth is only 273.2 GB/s. The N1 16SM's memory clock is 1067 MHz (8.5 Gbps effective), while the RTX 4080 Mobile's memory clock is 2250 MHz (18 Gbps effective). Despite having a wider bus, the N1 16SM's lower memory clock results in significantly less bandwidth. The N1 16SM's 128 GB capacity reflects its IGP role in a unified memory system, whereas the RTX 4080 Mobile's 12 GB is dedicated video memory.

Clock speeds also differ substantially. The RTX 4080 Mobile has a base clock of 1290 MHz and a boost clock of 1665 MHz. The N1 16SM has a lower base clock of 741 MHz but a much higher boost clock of 2346 MHz. The N1 16SM's boost behavior suggests it can scale aggressively under load, but its lower shading unit count limits its overall throughput. The bus interface differs as well: the RTX 4080 Mobile uses PCIe 4.0 x16, while the N1 16SM uses PCIe 5.0 x16. The N1 16SM has a single HDMI display output, while the RTX 4080 Mobile's display outputs are listed as portable device dependent. The RTX 4080 Mobile's TDP is 110 W, while the N1 16SM's TDP is unknown, but both are listed as IGP slot width with no power connectors.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA GeForce RTX 4080 Mobile has an average benchmark score of 38,135. The NVIDIA N1 16SM has no recorded benchmark scores and an average score of 0.

Q: What is the memory capacity of each GPU?

A: The RTX 4080 Mobile has 12 GB of GDDR6 memory. The N1 16SM has 128 GB of LPDDR5X memory.

Q: Which GPU supports DirectX 12 Ultimate?

A: The RTX 4080 Mobile supports DirectX 12 Ultimate (12_2). The N1 16SM lists its DirectX support as N/A.

Q: How does the FP32 compute performance compare?

A: The RTX 4080 Mobile delivers 24.72 TFLOPS of FP32 performance. The N1 16SM delivers 9.609 TFLOPS, which is less than half of the RTX 4080 Mobile's figure.

Q: What is the process node for both GPUs?

A: Both GPUs are fabricated by TSMC on a 5 nm process. The RTX 4080 Mobile uses the Ada Lovelace architecture, while the N1 16SM uses Blackwell 2.0.

Q: Which GPU has a higher boost clock?

A: The N1 16SM has a boost clock of 2346 MHz, which is higher than the RTX 4080 Mobile's boost clock of 1665 MHz. However, the RTX 4080 Mobile has a higher base clock at 1290 MHz versus 741 MHz.

Specification Differences

The following fields differ between the two GPUs:

• Architecture: Ada Lovelace (RTX 4080 Mobile) versus Blackwell 2.0 (N1 16SM)
• Chip: AD104 (RTX 4080 Mobile) versus GB20B (N1 16SM)
• Transistors: 35,800 million (RTX 4080 Mobile) versus unknown (N1 16SM)
• Die Size: 294 mm² (RTX 4080 Mobile) versus 382 mm² (N1 16SM)
• Transistor Density: 121.8M / mm² (RTX 4080 Mobile) versus null (N1 16SM)
• Base Clock: 1290 MHz (RTX 4080 Mobile) versus 741 MHz (N1 16SM)
• Boost Clock: 1665 MHz (RTX 4080 Mobile) versus 2346 MHz (N1 16SM)
• Memory Clock: 2250 MHz, 18 Gbps effective (RTX 4080 Mobile) versus 1067 MHz, 8.5 Gbps effective (N1 16SM)
• Memory Size: 12 GB (RTX 4080 Mobile) versus 128 GB (N1 16SM)
• Memory Type: GDDR6 (RTX 4080 Mobile) versus LPDDR5X (N1 16SM)
• Memory Bus Width: 192 bit (RTX 4080 Mobile) versus 256 bit (N1 16SM)
• Memory Bandwidth: 432.0 GB/s (RTX 4080 Mobile) versus 273.2 GB/s (N1 16SM)
• Shading Units: 7424 (RTX 4080 Mobile) versus 2048 (N1 16SM)
• TMUs: 232 (RTX 4080 Mobile) versus 128 (N1 16SM)
• ROPs: 80 (RTX 4080 Mobile) versus 24 (N1 16SM)
• RT Cores: 58 (RTX 4080 Mobile) versus 16 (N1 16SM)
• Tensor Cores: 232 (RTX 4080 Mobile) versus 64 (N1 16SM)
• Pixel Rate: 133.2 GPixel/s (RTX 4080 Mobile) versus 56.30 GPixel/s (N1 16SM)
• Texture Rate: 386.3 GTexel/s (RTX 4080 Mobile) versus 300.3 GTexel/s (N1 16SM)
• FP32: 24.72 TFLOPS (RTX 4080 Mobile) versus 9.609 TFLOPS (N1 16SM)
• FP16: 24.72 TFLOPS (1:1) (RTX 4080 Mobile) versus 9.609 TFLOPS (1:1) (N1 16SM)
• TDP: 110 W (RTX 4080 Mobile) versus unknown (N1 16SM)
• Bus Interface: PCIe 4.0 x16 (RTX 4080 Mobile) versus PCIe 5.0 x16 (N1 16SM)
• Display Outputs: Portable Device Dependent (RTX 4080 Mobile) versus 1x HDMI (N1 16SM)
• APIs: DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4 (RTX 4080 Mobile) versus N/A for all (N1 16SM)
• Release Date: 2023-01-02 (RTX 4080 Mobile) versus 2026-05-31 (N1 16SM)
• Predecessor: GeForce 30 Mobile (RTX 4080 Mobile) versus null (N1 16SM)
• Successor: GeForce 50 Mobile (RTX 4080 Mobile) versus null (N1 16SM)

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the RTX 4080 Mobile and the N1 16SM, and the N1 16SM has no individual benchmark scores recorded. However, the RTX 4080 Mobile's own benchmark results provide a detailed performance profile. Its strongest result is in PassMark G3D, where it scores 24,926. In Geekbench OpenCL, it scores 159,575, and in Geekbench Vulkan, it scores 145,807. PassMark GPU Compute yields 11,191. The RTX 4080 Mobile also records scores in older DirectX tests: 286 in PassMark DirectX 9, 244 in DirectX 11, 157 in DirectX 10, and 96 in DirectX 12. Its PassMark G2D score is 929.

The RTX 4080 Mobile's nearest rivals in the database include the NVIDIA GeForce MX570, which has an average score of 38,299 (0.4% behind), the NVIDIA GeForce RTX 5080 Mobile at 38,349 (0.6% behind), the NVIDIA GeForce RTX 4070 at 37,648 (1.3% ahead), and the NVIDIA Tesla P4 at 37,628 (1.3% ahead). These deltas show that the RTX 4080 Mobile sits in a tightly contested performance band, slightly ahead of the RTX 4070 and Tesla P4, and slightly behind the MX570 and RTX 5080 Mobile. The differences are small, all within a 1.3% range, indicating that the RTX 4080 Mobile is competitive with these established GPUs.

The N1 16SM, by contrast, has no benchmark entries and no nearest rivals listed. Its percentile rank of 50 places it at the median of all GPUs, but this is based on an average score of zero, which reflects the absence of measured data rather than actual performance. The RTX 4080 Mobile's 81st percentile rank indicates it outperforms 81% of all GPUs in the database. The recorded data shows the RTX 4080 Mobile's FP32 throughput of 24.72 TFLOPS is 2.57 times higher than the N1 16SM's 9.609 TFLOPS. Its pixel rate of 133.2 GPixel/s is 2.37 times higher than the N1 16SM's 56.30 GPixel/s. Its texture rate of 386.3 GTexel/s is 1.29 times higher than the N1 16SM's 300.3 GTexel/s. Memory bandwidth favors the RTX 4080 Mobile at 432.0 GB/s versus 273.2 GB/s, a 1.58 times advantage despite the N1 16SM's wider 256-bit bus.

The RTX 4080 Mobile's shading unit count of 7,424 is 3.63 times the N1 16SM's 2,048. Its tensor core count of 232 is 3.63 times the N1 16SM's 64. Its RT core count of 58 is 3.63 times the N1 16SM's 16. These ratios are consistent across compute resources, indicating the architectural scaling is proportional. The N1 16SM's higher boost clock of 2346 MHz versus 1665 MHz does not compensate for the massive difference in execution resources. The RTX 4080 Mobile also has a higher base clock of 1290 MHz versus 741 MHz, giving it a more consistent performance floor. The N1 16SM's larger die size of 382 mm² versus 294 mm² does not translate into higher performance, as its transistor count is listed as unknown but its compute resources are far fewer.