NVIDIA N1X 40SM vs NVIDIA RTX 1000 Mobile Ada Generation Comparison

The Verdict

The data indicates a stark generational and architectural split between these two NVIDIA offerings. The N1X 40SM, built on Blackwell 2.0, is a high-performance integrated graphics processor designed for a specific platform, while the RTX 1000 Mobile Ada Generation is a discrete mobile GPU. The N1X 40SM delivers more than double the FP32 compute throughput (24.02 TFLOPS vs. 10.37 TFLOPS) and features a substantially larger memory pool (128 GB vs. 6 GB), positioning it as the performance leader in raw compute and bandwidth. However, the RTX 1000 Mobile Ada Generation provides full API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4) and a much higher base clock (1485 MHz vs. 741 MHz), making it a more versatile and immediately compatible option for existing software ecosystems.

For users prioritizing peak compute performance, massive memory capacity, and next-generation architecture, the N1X 40SM is the clear choice based on recorded specifications. For those needing a proven, mobile-optimized GPU with broad software compatibility and a lower power envelope (35 W), the RTX 1000 Mobile Ada Generation is the more practical option. The neutral benchmark scores and percentile rankings (both at 50th percentile with an average score of 0) provide no differentiation, so the decision rests entirely on architectural and specification differences.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA N1X 40SM has 5120 shading units, exactly double the 2560 shading units found in the RTX 1000 Mobile Ada Generation.

Q: How does the memory capacity compare between the two?

A: The N1X 40SM features 128 GB of LPDDR5X memory on a 256-bit bus, whereas the RTX 1000 Mobile Ada Generation has 6 GB of GDDR6 memory on a 96-bit bus. The N1X 40SM also delivers 273.2 GB/s of bandwidth compared to 192.0 GB/s for the RTX 1000.

Q: Are there differences in API support?

A: Yes. The RTX 1000 Mobile Ada Generation supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM has no API support listed, with all three APIs marked as N/A.

Q: What are the clock speed differences?

A: The RTX 1000 Mobile Ada Generation has a higher base clock at 1485 MHz versus 741 MHz for the N1X 40SM. However, the N1X 40SM has a higher boost clock at 2346 MHz versus 2025 MHz for the RTX 1000.

Q: Which GPU has a higher pixel rate?

A: The RTX 1000 Mobile Ada Generation has a slightly higher pixel rate at 97.20 GPixel/s, compared to 93.84 GPixel/s for the N1X 40SM. This is despite the N1X 40SM having fewer ROPs (40 vs. 48).

Q: What is the transistor count and die size for each?

A: The RTX 1000 Mobile Ada Generation uses 18,900 million transistors on a 159 mm² die with a density of 118.9M / mm². The N1X 40SM has an unknown transistor count but a larger die size of 382 mm².

Architecture Differences

The two GPUs belong to entirely different architectural generations. The N1X 40SM is based on Blackwell 2.0, using the GB20B chip, and is classified as a Blackwell IGP (N1x) generation product. In contrast, the RTX 1000 Mobile Ada Generation uses the Ada Lovelace architecture with the AD107 chip, part of the Ada-MW (x000A) generation.

Both are fabricated on a 5 nm process at TSMC, but the similarities end there. The N1X 40SM has a die size of 382 mm², while the RTX 1000 Mobile Ada Generation is significantly smaller at 159 mm². The RTX 1000 has a documented transistor count of 18,900 million and a density of 118.9M / mm²; the N1X 40SM's transistor count is not recorded.

The N1X 40SM doubles the RTX 1000's core counts across the board: 5120 shading units versus 2560, 320 TMUs versus 80, 40 RT cores versus 20, and 160 tensor cores versus 80. The N1X 40SM does have fewer ROPs (40) than the RTX 1000 (48). The RTX 1000 Mobile Ada Generation supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the N1X 40SM reports no API support (N/A for all three). The N1X 40SM uses a PCIe 5.0 x16 interface, whereas the RTX 1000 uses PCIe 4.0 x8.

Specification Differences

The specification tables show several direct differences between the two products.

• Shading Units: N1X 40SM has 5120; RTX 1000 Mobile has 2560.
• TMUs: N1X 40SM has 320; RTX 1000 Mobile has 80.
• ROPs: N1X 40SM has 40; RTX 1000 Mobile has 48.
• RT Cores: N1X 40SM has 40; RTX 1000 Mobile has 20.
• Tensor Cores: N1X 40SM has 160; RTX 1000 Mobile has 80.
• Base Clock: N1X 40SM runs at 741 MHz; RTX 1000 Mobile runs at 1485 MHz.
• Boost Clock: N1X 40SM boosts to 2346 MHz; RTX 1000 Mobile boosts to 2025 MHz.
• Memory Clock: N1X 40SM uses 1067 MHz (8.5 Gbps effective); RTX 1000 Mobile uses 2000 MHz (16 Gbps effective).
• Memory Size: N1X 40SM has 128 GB; RTX 1000 Mobile has 6 GB.
• Memory Type: N1X 40SM uses LPDDR5X; RTX 1000 Mobile uses GDDR6.
• Memory Bus Width: N1X 40SM has 256 bit; RTX 1000 Mobile has 96 bit.
• Memory Bandwidth: N1X 40SM delivers 273.2 GB/s; RTX 1000 Mobile delivers 192.0 GB/s.
• Pixel Rate: N1X 40SM is rated at 93.84 GPixel/s; RTX 1000 Mobile is rated at 97.20 GPixel/s.
• Texture Rate: N1X 40SM is rated at 750.7 GTexel/s; RTX 1000 Mobile is rated at 162.0 GTexel/s.
• FP32 Performance: N1X 40SM delivers 24.02 TFLOPS; RTX 1000 Mobile delivers 10.37 TFLOPS.
• FP16 Performance: N1X 40SM delivers 24.02 TFLOPS (1:1); RTX 1000 Mobile delivers 10.37 TFLOPS (1:1).
• TDP: N1X 40SM is unknown; RTX 1000 Mobile is rated at 35 W.
• Bus Interface: N1X 40SM uses PCIe 5.0 x16; RTX 1000 Mobile uses PCIe 4.0 x8.
• Display Outputs: N1X 40SM has 1x HDMI; RTX 1000 Mobile is Portable Device Dependent.
• API Support: N1X 40SM lists DirectX, OpenGL, and Vulkan as N/A; RTX 1000 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.
• Release Date: N1X 40SM is dated 2026-05-31; RTX 1000 Mobile is dated 2024-02-25.
• Predecessor/Successor: RTX 1000 Mobile lists its predecessor as Ampere-MW and successor as Blackwell-MW; N1X 40SM has no predecessor or successor recorded.

Head-to-Head Benchmarks

No direct head-to-head benchmark results are recorded in the database for these two products. The headToHeadBenchmarks array is empty, and both products have zero wins (winsA: 0, winsB: 0). Their average benchmark scores are both 0, and both sit at the 50th percentile against all GPUs. Without benchmark measurements, the comparison must rely entirely on the recorded specification data and architectural analysis.

The most significant performance indicator is FP32 compute. The N1X 40SM delivers 24.02 TFLOPS, which is 131.6% higher than the RTX 1000 Mobile Ada Generation's 10.37 TFLOPS. This advantage is consistent across texture rate, where the N1X 40SM's 750.7 GTexel/s is 4.6 times the RTX 1000's 162.0 GTexel/s. The N1X 40SM also leads in memory bandwidth by 42.3% (273.2 GB/s vs. 192.0 GB/s), aided by its 256-bit bus versus the 96-bit bus on the RTX 1000.

The RTX 1000 Mobile Ada Generation holds advantages in a few specific areas. Its pixel rate of 97.20 GPixel/s is 3.6% higher than the N1X 40SM's 93.84 GPixel/s, despite having fewer shading units and TMUs. This is attributable to its higher base clock (1485 MHz vs. 741 MHz) and greater ROP count (48 vs. 40). The RTX 1000 also has a higher memory clock (2000 MHz vs. 1067 MHz), though the N1X 40SM's wider bus more than compensates in overall bandwidth.

Clock behavior differs notably. The RTX 1000 Mobile Ada Generation starts at a much higher base frequency, suggesting better sustained performance at lower loads. The N1X 40SM's boost clock of 2346 MHz exceeds the RTX 1000's 2025 MHz boost, indicating a higher peak capability when thermally and power conditions allow. The N1X 40SM's unknown TDP leaves its power efficiency undefined, while the RTX 1000 Mobile is explicitly rated at 35 W.

The N1X 40SM's 128 GB memory capacity is exceptional relative to the RTX 1000's 6 GB, a 21.3x difference. This capacity, combined with LPDDR5X memory and a 256-bit interface, positions the N1X 40SM for workloads requiring massive datasets in memory, such as large language model inference or high-resolution rendering. The RTX 1000 Mobile's 6 GB GDDR6 configuration is more typical of a mobile discrete GPU aimed at conventional laptop workloads.

The N1X 40SM's lack of API support in the database is a critical caveat. While its raw compute metrics are superior, the absence of DirectX, OpenGL, and Vulkan support listings means software compatibility cannot be confirmed from the recorded data. The RTX 1000 Mobile's full API support (DirectX 12 Ultimate 12_2, OpenGL 4.6, Vulkan 1.4) provides immediate compatibility with current games and applications.

The bus interface also differs: the N1X 40SM uses PCIe 5.0 x16, offering double the lane count and a newer generation than the RTX 1000 Mobile's PCIe 4.0 x8. This affects data transfer rates to the host system, though the practical impact depends on the platform implementation.

The N1X 40SM's release date is listed as 2026-05-31, while the RTX 1000 Mobile Ada Generation was released on 2024-02-25. The RTX 1000 lists its predecessor as Ampere-MW and its successor as Blackwell-MW, confirming its position in a product lineage. The N1X 40SM has no predecessor or successor recorded, consistent with its classification as an integrated GPU for a specific N1x platform.

In the absence of benchmark scores, the specification data shows a clear trade-off: the N1X 40SM dominates in raw compute, memory capacity, and bandwidth, while the RTX 1000 Mobile Ada Generation counters with higher base clocks, a higher pixel rate, full API support, and a documented 35 W power draw. Both products hold identical 50th percentile rankings and zero average benchmark scores, indicating no measured performance data exists to differentiate them further.