NVIDIA GeForce RTX 5090 D V2 vs NVIDIA N1X 40SM Comparison

The Verdict

The NVIDIA GeForce RTX 5090 D V2 is the clear performance leader based on recorded data, delivering a 3DMark Steel Nomad DX12 score of 16504. The NVIDIA N1X 40SM has no recorded benchmark scores, an average benchmark score of 0, and sits at the 50th percentile among all GPUs. The RTX 5090 D V2 sits at the 59th percentile. For any workload requiring rasterization performance, the RTX 5090 D V2 is the only option with measurable results. The N1X 40SM, classified as an IGP (integrated graphics processor), offers no benchmark data, no DirectX, OpenGL, or Vulkan API support, and no thermal design power rating. Its role appears limited to integrated graphics duties where discrete GPU performance is not the priority. The RTX 5090 D V2 targets users needing a dual-slot, 575 W discrete graphics card with 24 GB of GDDR7 memory. The N1X 40SM targets systems needing 128 GB of LPDDR5X memory on a 256-bit bus, but its compute capabilities remain unmeasured.

Architecture Differences

Both processors share the Blackwell 2.0 architecture and a 5 nm process node at TSMC. The RTX 5090 D V2 uses the GB202 chip with 92,200 million transistors on a 750 mm² die, yielding a transistor density of 122.9 million per square millimeter. The N1X 40SM uses the GB20B chip with a 382 mm² die size; its transistor count and density are recorded as unknown. The RTX 5090 D V2 features 21,760 shading units, 680 texture mapping units, 176 raster output units, 170 ray tracing cores, and 680 tensor cores. The N1X 40SM features 5,120 shading units, 320 TMUs, 40 ROPs, 40 ray tracing cores, and 160 tensor cores. The RTX 5090 D V2 has over four times the shading units, more than double the TMUs, and over four times the ROPs. The N1X 40SM uses LPDDR5X memory with 128 GB capacity and a 256-bit bus. The RTX 5090 D V2 uses GDDR7 memory with 24 GB capacity and a 384-bit bus. The RTX 5090 D V2 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM reports N/A for all three API categories. The RTX 5090 D V2 is part of the GeForce 50 generation with a predecessor in the GeForce 40 series and successor in the GeForce 60 series. The N1X 40SM belongs to the Blackwell IGP (N1x) generation with no recorded predecessor or successor. The RTX 5090 D V2 has a boost clock of 2407 MHz, while the N1X 40SM boosts to 2346 MHz. Base clocks differ more substantially: 2017 MHz for the RTX 5090 D V2 versus 741 MHz for the N1X 40SM.

FAQ

Q: Which GPU has a higher benchmark score?

A: The NVIDIA GeForce RTX 5090 D V2 records a 3DMark Steel Nomad DX12 score of 16504. The NVIDIA N1X 40SM has no benchmark entries in the database, resulting in an average benchmark score of 0.

Q: What is the memory configuration difference?

A: The RTX 5090 D V2 uses 24 GB of GDDR7 memory on a 384-bit bus with 1.34 TB/s bandwidth. The N1X 40SM uses 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth.

Q: Are the API supports different?

A: Yes. The RTX 5090 D V2 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists N/A for DirectX, OpenGL, and Vulkan.

Q: What are the physical form factor differences?

A: The RTX 5090 D V2 is a dual-slot card measuring 304 mm in length, 137 mm in height, and 48 mm in width, using a single 16-pin power connector. The N1X 40SM is an IGP with no dimensions recorded, no power connectors, and no thermal design power rating.

Q: How do the clock speeds compare?

A: The RTX 5090 D V2 has a base clock of 2017 MHz and a boost clock of 2407 MHz. The N1X 40SM has a base clock of 741 MHz and a boost clock of 2346 MHz.

Q: Which GPU has more ray tracing cores?

A: The RTX 5090 D V2 has 170 ray tracing cores. The N1X 40SM has 40 ray tracing cores.

Specification Differences

The two processors differ across nearly every recorded specification field. The RTX 5090 D V2 uses the GB202 chip, while the N1X 40SM uses the GB20B. Die size is 750 mm² versus 382 mm². Transistor count is 92,200 million for the RTX 5090 D V2, with the N1X 40SM recorded as unknown. Transistor density is 122.9 million per square millimeter for the RTX 5090 D V2, with the N1X 40SM having no recorded value. Base clocks differ: 2017 MHz versus 741 MHz. Boost clocks are 2407 MHz versus 2346 MHz. Memory clocks are 1750 MHz (28 Gbps effective) versus 1067 MHz (8.5 Gbps effective). Memory size is 24 GB GDDR7 versus 128 GB LPDDR5X. Bus width is 384-bit versus 256-bit. Memory bandwidth is 1.34 TB/s versus 273.2 GB/s. Shading units are 21,760 versus 5,120. TMUs are 680 versus 320. ROPs are 176 versus 40. Ray tracing cores are 170 versus 40. Tensor cores are 680 versus 160. Pixel rate is 423.6 GPixel/s versus 93.84 GPixel/s. Texture rate is 1,636.8 GTexel/s versus 750.7 GTexel/s. FP32 compute is 104.8 TFLOPS versus 24.02 TFLOPS. FP16 compute is 104.8 TFLOPS (1:1) versus 24.02 TFLOPS (1:1). The RTX 5090 D V2 has a TDP of 575 W, while the N1X 40SM has an unknown TDP. Slot width is dual-slot versus IGP. Power connectors are 1x 16-pin versus none. Suggested PSU is 950 W versus null. Display outputs are 1x HDMI 2.1b and 3x DisplayPort 2.1b versus 1x HDMI. The RTX 5090 D V2 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the N1X 40SM lists N/A for all three. Dimensions are 304 mm x 137 mm x 48 mm versus no recorded dimensions. Release date is August 14, 2025 versus May 31, 2026. The RTX 5090 D V2 has a launch MSRP of 2,299 USD; the N1X 40SM has no recorded launch MSRP. The bus interface is PCIe 5.0 x16 for both. Both use a 5 nm process node at TSMC and the Blackwell 2.0 architecture.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the RTX 5090 D V2 and the N1X 40SM. The RTX 5090 D V2 has a single recorded benchmark result: 3DMark Steel Nomad DX12 at 16504. The N1X 40SM has no benchmark results at all. The RTX 5090 D V2 achieves an average benchmark score of 16504, placing it at the 59th percentile among all GPUs. The N1X 40SM has an average benchmark score of 0, placing it at the 50th percentile. Without comparable benchmark data for the N1X 40SM, direct performance deltas cannot be calculated. The nearest rivals to the RTX 5090 D V2 include the NVIDIA T400 at 16508 (0% delta), the AMD Radeon PRO W7500 at 16415 (0.5% delta), the NVIDIA RTX PRO 6000 Blackwell at 16408 (0.6% delta), and the AMD Radeon RX 5700 XT at 16361 (0.9% delta). These deltas indicate the RTX 5090 D V2 performs within 0.9% of these four competing products. The N1X 40SM has no nearest rivals listed. The compute throughput difference is substantial: the RTX 5090 D V2 delivers 104.8 TFLOPS FP32, while the N1X 40SM delivers 24.02 TFLOPS FP32. Pixel throughput is 423.6 GPixel/s versus 93.84 GPixel/s. Texture throughput is 1,636.8 GTexel/s versus 750.7 GTexel/s. These figures show the RTX 5090 D V2 provides approximately 4.4 times the FP32 compute, 4.5 times the pixel rate, and 2.2 times the texture rate of the N1X 40SM.

Where Each One Wins

The RTX 5090 D V2 wins in every measurable performance category. It delivers 104.8 TFLOPS FP32 compute, which is 4.4 times the N1X 40SM's 24.02 TFLOPS. Its pixel rate of 423.6 GPixel/s exceeds the N1X 40SM's 93.84 GPixel/s by a factor of 4.5. Its texture rate of 1,636.8 GTexel/s is more than double the N1X 40SM's 750.7 GTexel/s. The RTX 5090 D V2 has 170 ray tracing cores versus 40, and 680 tensor cores versus 160. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the N1X 40SM lists no API support. The RTX 5090 D V2 has a boost clock of 2407 MHz versus 2346 MHz for the N1X 40SM. Memory bandwidth is 1.34 TB/s versus 273.2 GB/s, a 4.9 times advantage. The RTX 5090 D V2 is an active production discrete GPU with a dual-slot form factor and a 575 W TDP, suited for systems with a 950 W suggested PSU. The N1X 40SM wins in memory capacity, offering 128 GB of LPDDR5X versus 24 GB of GDDR7. It also wins in physical integration, requiring no power connectors and occupying an IGP slot, which eliminates the need for additional cooling or power delivery. The N1X 40SM has a later release date of May 31, 2026, compared to August 14, 2025 for the RTX 5090 D V2. For workloads constrained by memory capacity rather than bandwidth, such as large dataset residency, the N1X 40SM provides 128 GB on a 256-bit bus. For all compute, rendering, and gaming workloads requiring DirectX, OpenGL, or Vulkan support, the RTX 5090 D V2 is the only processor with recorded API compatibility and benchmark results. The N1X 40SM's total performance remains unquantified, making it impossible to assign it any benchmark-based use case. The data supports selecting the RTX 5090 D V2 for any application requiring measurable graphics performance, while the N1X 40SM serves scenarios where a low-power integrated solution with maximum memory capacity is preferred.