NVIDIA GeForce RTX 4060 Mobile vs NVIDIA N1 20SM Comparison

FAQ

Q: What are the core architectural differences between the NVIDIA GeForce RTX 4060 Mobile and the NVIDIA N1 20SM?

A: The RTX 4060 Mobile uses the AD107 chip based on Ada Lovelace architecture, built on TSMC's 5 nm process, while the N1 20SM uses the GB20B chip based on Blackwell 2.0 architecture, also on TSMC's 5 nm process. The RTX 4060 Mobile has 18,900 million transistors on a 159 mm² die, whereas the N1 20SM's transistor count is unknown, but its die size measures 382 mm².

Q: How do the memory configurations compare between the two GPUs?

A: The RTX 4060 Mobile has 8 GB of GDDR6 memory on a 128-bit bus with 256.0 GB/s bandwidth, while the N1 20SM has 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth. The N1 20SM offers 16 times the memory capacity and 6.7% more bandwidth.

Q: Which GPU has higher compute throughput in FP32 operations?

A: The N1 20SM delivers 12.01 TFLOPS of FP32 performance, slightly ahead of the RTX 4060 Mobile's 11.61 TFLOPS. The N1 20SM also leads in texture rate at 375.4 GTexel/s versus 181.4 GTexel/s for the RTX 4060 Mobile.

Q: What benchmark data is available for each GPU?

A: The RTX 4060 Mobile has nine recorded benchmark scores, including Geekbench OpenCL and Vulkan results, plus multiple Passmark tests, with an average benchmark score of 22,729 and a percentile rank of 67 among all GPUs. The N1 20SM has no recorded benchmark scores, an average score of 0, and a percentile rank of 50.

Q: How does the RTX 4060 Mobile compare to its nearest rivals?

A: The database shows the RTX 4060 Mobile sits 0.7% behind the RTX 2080 (22,895 average), 0.8% ahead of the RX 7700 XT (22,549), 1.3% behind the Arc B580 (23,021), and 1.3% ahead of the RTX 5060 Mobile (22,435).

Q: What are the clock speed differences?

A: The RTX 4060 Mobile has a base clock of 1545 MHz and a boost clock of 1890 MHz, while the N1 20SM has a lower base clock of 741 MHz but a higher boost clock of 2346 MHz. The N1 20SM's boost clock is 24.1% higher.

Where Each One Wins

The RTX 4060 Mobile wins in scenarios that depend on raw rasterization throughput and established driver-optimized workloads. Its pixel rate of 90.72 GPixel/s is 61.1% higher than the N1 20SM's 56.30 GPixel/s, which gives it a clear advantage in fill-rate-bound tasks such as high-resolution texture mapping and traditional shadow rendering. The RTX 4060 Mobile also has 3072 shading units versus 2560 for the N1 20SM, and 48 ROPs versus 24, so it handles pixel-heavy effects with more parallelism. The Passmark DirectX 9 score of 216 and DirectX 11 score of 157 indicate strong legacy API performance, while the DirectX 12 score of 73 and DirectX 10 score of 107 round out a consistent showing across older and modern graphics APIs.

The N1 20SM wins in compute-oriented and bandwidth-sensitive applications. Its FP32 throughput of 12.01 TFLOPS edges out the RTX 4060 Mobile's 11.61 TFLOPS, and its texture rate of 375.4 GTexel/s is more than double the RTX 4060 Mobile's 181.4 GTexel/s. The N1 20SM also has 160 TMUs versus 96, which allows it to process texel-heavy workloads such as procedural generation and post-processing filters much faster. The 128 GB memory pool, while not benchmarked, provides a massive capacity advantage that suits workloads requiring large datasets resident in VRAM. The N1 20SM's lower pixel rate and ROP count suggest it is not designed for traditional rendering, but rather for compute tasks where texture throughput and memory capacity dominate.

The N1 20SM also wins on memory bandwidth, delivering 273.2 GB/s over a 256-bit interface, which is 6.7% higher than the RTX 4060 Mobile's 256.0 GB/s over a 128-bit interface. This bandwidth advantage, combined with the higher texture rate, makes the N1 20SM the stronger choice for data-heavy shader workloads. The RTX 4060 Mobile counters with a much higher pixel rate and a fully benchmarked profile that places it in the 67th percentile of all GPUs, whereas the N1 20SM sits at the 50th percentile with no recorded performance data.

Architecture Differences

The two GPUs represent different generations of NVIDIA architecture. The RTX 4060 Mobile uses Ada Lovelace, the architecture that powers the GeForce 40-series, while the N1 20SM uses Blackwell 2.0, a newer design aimed at integrated graphics platforms. Both are fabricated on TSMC's 5 nm process, so the manufacturing node is identical, but the chip designs diverge significantly. The AD107 chip in the RTX 4060 Mobile packs 18,900 million transistors into a 159 mm² die, giving it a transistor density of 118.9 million per square millimeter. The GB20B chip in the N1 20SM has an unknown transistor count but a much larger die at 382 mm², which is 2.4 times the area of the AD107.

The RTX 4060 Mobile includes 24 RT cores and 96 tensor cores, supporting DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1 20SM includes 20 RT cores and 80 tensor cores, but its API support is listed as N/A for DirectX, OpenGL, and Vulkan. This suggests the N1 20SM is not intended for traditional graphics API workloads, or its drivers do not expose those interfaces in the recorded data. The RTX 4060 Mobile also has 96 TMUs and 48 ROPs, while the N1 20SM has 160 TMUs and 24 ROPs, indicating a design skewed heavily toward texture processing rather than pixel output.

Memory architecture differs substantially. The RTX 4060 Mobile uses 8 GB of GDDR6 on a 128-bit bus, while the N1 20SM uses 128 GB of LPDDR5X on a 256-bit bus. The N1 20SM's memory type and capacity point to a unified memory design typical of integrated graphics processors, where system RAM and GPU memory share the same pool. The RTX 4060 Mobile's dedicated GDDR6 is conventional for discrete mobile GPUs. The N1 20SM also connects via PCIe 5.0 x16, whereas the RTX 4060 Mobile uses PCIe 4.0 x8, giving the N1 20SM double the lane count and a newer bus standard.

The RTX 4060 Mobile has a base clock of 1545 MHz and a boost clock of 1890 MHz, while the N1 20SM operates at 741 MHz base and 2346 MHz boost. The N1 20SM's boost clock is significantly higher, but its base clock is much lower, suggesting a wider dynamic range. The RTX 4060 Mobile has a TDP of 115 W, while the N1 20SM's TDP is unknown. Both are marked as integrated graphics (IGP) with no power connectors, and the RTX 4060 Mobile's display outputs are listed as portable device dependent, while the N1 20SM lists a single HDMI output.

Specification Differences

The RTX 4060 Mobile and N1 20SM differ in nearly every measurable specification except for manufacturing node and foundry. The RTX 4060 Mobile uses the AD107 chip with 18,900 million transistors on a 159 mm² die, while the N1 20SM uses the GB20B chip with an unknown transistor count on a 382 mm² die. Shading units differ: 3072 for the RTX 4060 Mobile versus 2560 for the N1 20SM. Texture mapping units are 96 versus 160, and ROPs are 48 versus 24. RT cores are 24 versus 20, and tensor cores are 96 versus 80.

Clock speeds show a mixed picture. The RTX 4060 Mobile has a higher base clock at 1545 MHz versus 741 MHz, but the N1 20SM has a higher boost clock at 2346 MHz versus 1890 MHz. Memory clocks also differ: the RTX 4060 Mobile runs at 2000 MHz with 16 Gbps effective, while the N1 20SM runs at 1067 MHz with 8.5 Gbps effective. The RTX 4060 Mobile uses 8 GB of GDDR6 on a 128-bit bus, while the N1 20SM uses 128 GB of LPDDR5X on a 256-bit bus. Bandwidth is 256.0 GB/s for the RTX 4060 Mobile and 273.2 GB/s for the N1 20SM.

Pixel rate is 90.72 GPixel/s for the RTX 4060 Mobile versus 56.30 GPixel/s for the N1 20SM. Texture rate is 181.4 GTexel/s versus 375.4 GTexel/s. FP32 and FP16 performance are both 11.61 TFLOPS for the RTX 4060 Mobile and 12.01 TFLOPS for the N1 20SM. The bus interface is PCIe 4.0 x8 for the RTX 4060 Mobile and PCIe 5.0 x16 for the N1 20SM. Display outputs are portable device dependent for the RTX 4060 Mobile and one HDMI for the N1 20SM. API support covers DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 for the RTX 4060 Mobile, while the N1 20SM lists N/A for all three.

The release dates differ by over three years: the RTX 4060 Mobile launched in January 2023, while the N1 20SM is dated May 2026. The RTX 4060 Mobile has a predecessor in GeForce 30 Mobile and a successor in GeForce 50 Mobile, while the N1 20SM has neither. The RTX 4060 Mobile has nine recorded benchmark scores and an average score of 22,729, while the N1 20SM has no benchmarks and an average score of 0.

Head-to-Head Benchmarks

The head-to-head benchmark list is empty, so a direct comparison of identical tests is not possible from the recorded data. Instead, the analysis relies on the individual benchmark scores for the RTX 4060 Mobile and the known specification differences for both parts. The RTX 4060 Mobile's strongest recorded results come from Geekbench, where it scores 89,420 in OpenCL and 89,569 in Vulkan. These two scores are nearly identical, differing by only 0.17%, which indicates consistent performance across compute and graphics API workloads. The Passmark G3D score of 17,469 is the next highest, followed by the Passmark GPU Compute score of 6,816.

The N1 20SM has no recorded benchmark scores, so its performance must be inferred from specifications. In FP32 throughput, the N1 20SM leads by 0.40 TFLOPS, which is a 3.4% advantage over the RTX 4060 Mobile. This is a modest lead in raw compute, but the N1 20SM's texture rate advantage is far larger: 375.4 GTexel/s versus 181.4 GTexel/s, a 107% difference. The RTX 4060 Mobile counters with a pixel rate of 90.72 GPixel/s versus 56.30 GPixel/s, a 61.1% advantage. These two figures tell the story of two very different designs: the RTX 4060 Mobile is built to fill pixels, while the N1 20SM is built to process textures and compute.

The RTX 4060 Mobile's nearest rivals provide context for its performance. It sits 0.7% behind the RTX 2080, which averages 22,895, and 1.3% behind the Arc B580, which averages 23,021. It sits 0.8% ahead of the RX 7700 XT, which averages 22,549, and 1.3% ahead of the RTX 5060 Mobile, which averages 22,435. These margins are all within 1.3%, placing the RTX 4060 Mobile in a tight competitive cluster. Its average benchmark score of 22,729 and 67th percentile ranking reflect a solidly mid-to-upper-tier position among all GPUs.

The N1 20SM's 50th percentile ranking and zero average score place it below the RTX 4060 Mobile in overall standing, but the specification sheet indicates strengths in specific areas. The 128 GB memory capacity is a category of its own, and the 273.2 GB/s bandwidth is slightly higher than the RTX 4060 Mobile's 256.0 GB/s. The N1 20SM's 160 TMUs and 375.4 GTexel/s texture rate are the standout figures, while its 24 ROPs and 56.30 GPixel/s pixel rate are the clear weaknesses. The RTX 4060 Mobile's 48 ROPs and 90.72 GPixel/s pixel rate give it a decisive advantage in any workload that ends with pixel output, such as anti-aliasing, post-processing, or final framebuffer composition.

The recorded data shows a clear division of labor. The RTX 4060 Mobile is a conventional graphics processor with proven benchmark scores across nine tests, while the N1 20SM is a compute-oriented IGP with no benchmark data but a specification sheet that prioritizes texture throughput and memory capacity over pixel output. The RTX 4060 Mobile's 11.61 TFLOPS FP32 is within 3.4% of the N1 20SM's 12.01 TFLOPS, so raw compute is nearly a tie, but the N1 20SM's texture rate and memory bandwidth give it an edge in data-intensive shader work. The RTX 4060 Mobile's higher pixel rate, more shading units, and full API support make it the more balanced and immediately usable GPU for graphics workloads.