NVIDIA N1X 48SM vs NVIDIA RTX 5000 Max-Q Ada Generation Comparison

FAQ

Q: What are the key architectural differences between the NVIDIA N1X 48SM and the NVIDIA RTX 5000 Max-Q Ada Generation?

A: The N1X 48SM uses the Blackwell 2.0 architecture on the GB20B chip, while the RTX 5000 Max-Q Ada Generation uses Ada Lovelace on the AD103 chip. The N1X 48SM is listed as an IGP (integrated graphics processor) with no power connectors, whereas the RTX 5000 Max-Q is also an IGP but carries a 120 W TDP.

Q: How do the two GPUs compare in raw shading throughput?

A: The RTX 5000 Max-Q Ada Generation delivers 32.69 TFLOPS FP32, while the N1X 48SM delivers 28.83 TFLOPS FP32. Both have identical FP16 throughput at 1:1 ratios, meaning the RTX 5000 Max-Q holds a clear lead in single-precision compute.

Q: Which GPU has more memory bandwidth?

A: The RTX 5000 Max-Q Ada Generation has a memory bandwidth of 576.0 GB/s, more than double the 273.2 GB/s of the N1X 48SM. However, the N1X 48SM has 128 GB of LPDDR5X memory, compared to the RTX 5000 Max-Q’s 16 GB of GDDR6.

Q: What are the differences in API support?

A: The RTX 5000 Max-Q Ada Generation supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists no APIs for DirectX, OpenGL, or Vulkan, all marked as N/A.

Q: Which GPU has a higher boost clock?

A: The N1X 48SM has a boost clock of 2346 MHz, which is substantially higher than the RTX 5000 Max-Q Ada Generation’s boost clock of 1680 MHz. The base clock of the RTX 5000 Max-Q is 930 MHz, while the N1X 48SM starts at 741 MHz.

Q: How do the two GPUs differ in transistor count and die size?

A: The RTX 5000 Max-Q Ada Generation has 45,900 million transistors on a 379 mm² die. The N1X 48SM has an unknown transistor count but a slightly larger die at 382 mm². Both are fabricated on a 5 nm process at TSMC.

Architecture Differences

The NVIDIA N1X 48SM and the NVIDIA RTX 5000 Max-Q Ada Generation represent two distinct architecture generations from NVIDIA. The N1X 48SM is built on Blackwell 2.0, using the GB20B chip, while the RTX 5000 Max-Q Ada Generation uses the older Ada Lovelace architecture with the AD103 chip. This architectural gap shows up in several fundamental ways across the specification sheet.

The N1X 48SM belongs to the Blackwell IGP (N1x) generation and is described as an integrated graphics processor, meaning it is designed for direct integration into a system rather than as a discrete add-in card. Its slot width is listed as IGP, and it has no power connectors. The RTX 5000 Max-Q Ada Generation also falls under the IGP category, but it is part of the GeForce 50-series and the Ada-MW generation, with a predecessor named Ampere-MW and a successor named Blackwell-MW. Both GPUs use a 5 nm process from TSMC, but the underlying designs diverge significantly.

The N1X 48SM carries 6144 shading units, 384 texture mapping units, and 48 render output units. The RTX 5000 Max-Q Ada Generation has more shading units at 9728, but fewer texture units at 304 and more render output units at 112. In terms of specialized hardware, the N1X 48SM has 48 ray tracing cores and 192 tensor cores, while the RTX 5000 Max-Q has 76 ray tracing cores and 304 tensor cores. This means the RTX 5000 Max-Q has a higher count of both ray tracing and tensor cores, which typically indicates stronger performance in ray-traced workloads and AI-accelerated tasks.

Memory architecture is another major divider. The N1X 48SM uses LPDDR5X memory with a 256-bit bus, offering 128 GB of capacity and a bandwidth of 273.2 GB/s. The RTX 5000 Max-Q uses GDDR6 memory on the same 256-bit bus, but only 16 GB of capacity, with a much higher bandwidth of 576.0 GB/s. The memory clock differs as well: the N1X 48SM runs at 1067 MHz (8.5 Gbps effective), while the RTX 5000 Max-Q runs at 2250 MHz (18 Gbps effective). This bandwidth advantage for the RTX 5000 Max-Q is substantial and likely affects memory-bound scenarios.

Both GPUs are listed as having no power connectors and an IGP slot width. The N1X 48SM has a TDP listed as unknown, while the RTX 5000 Max-Q has a TDP of 120 W. The bus interface also differs: the N1X 48SM uses PCIe 5.0 x16, while the RTX 5000 Max-Q uses PCIe 4.0 x16. Display outputs are minimal on both, with the N1X 48SM offering 1x HDMI and the RTX 5000 Max-Q being portable device dependent.

The release dates are far apart: the RTX 5000 Max-Q Ada Generation launched on 2023-03-20, while the N1X 48SM is dated 2026-05-31. Both are marked as Active in production status. The RTX 5000 Max-Q has a full set of API support, including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, whereas the N1X 48SM has no listed API support at all, which suggests it may be intended for a more specialized or proprietary role.

Head-to-Head Benchmarks

The benchmark data for these two GPUs shows no recorded head-to-head results, with zero wins for either side and an empty benchmark array. However, the specification-derived compute figures provide a basis for comparison, since both list FP32 and FP16 throughput directly.

In FP32 compute, the RTX 5000 Max-Q Ada Generation delivers 32.69 TFLOPS, which is 13.4% higher than the N1X 48SM’s 28.83 TFLOPS. In FP16, both GPUs match their FP32 numbers at 1:1 ratios, so the RTX 5000 Max-Q again holds the same 32.69 TFLOPS versus 28.83 TFLOPS for the N1X 48SM. This means the RTX 5000 Max-Q has a consistent compute advantage in both precision modes.

Pixel throughput tells a similar story. The RTX 5000 Max-Q achieves 188.2 GPixel/s, while the N1X 48SM achieves 112.6 GPixel/s. That is a 67.1% advantage for the RTX 5000 Max-Q in pixel fill rate, which is notable for rasterization-heavy workloads. Texture throughput, however, flips the direction: the N1X 48SM delivers 900.9 GTexel/s, while the RTX 5000 Max-Q delivers 510.7 GTexel/s. This gives the N1X 48SM a 76.4% lead in texture fill rate, driven by its higher texture unit count and boost clock.

Clock speeds also differ sharply. The N1X 48SM boosts to 2346 MHz, which is 39.6% higher than the RTX 5000 Max-Q’s 1680 MHz boost. But the RTX 5000 Max-Q has a higher base clock at 930 MHz versus 741 MHz for the N1X 48SM. These clock differences are reflected in the throughput figures: the N1X 48SM’s high boost clock helps its texture rate, but the RTX 5000 Max-Q’s higher shader count and pixel rate dominate other metrics.

Memory bandwidth is heavily skewed toward the RTX 5000 Max-Q. With 576.0 GB/s versus 273.2 GB/s, the RTX 5000 Max-Q has a 110.8% bandwidth advantage. This is likely to matter in high-resolution gaming, texture streaming, and compute workloads that saturate memory. The N1X 48SM counters with 128 GB of memory capacity, which is 8 times the RTX 5000 Max-Q’s 16 GB, a difference that could matter for large datasets or multi-tasking.

The transistor density also differs. The RTX 5000 Max-Q has a transistor density of 121.1M per mm², while the N1X 48SM has no listed transistor density. Both have similar die sizes, 382 mm² for the N1X 48SM and 379 mm² for the RTX 5000 Max-Q, but the RTX 5000 Max-Q’s transistor count is explicitly stated at 45,900 million.

Specification Differences

The two GPUs differ across nearly every specification field. The N1X 48SM uses the GB20B chip with Blackwell 2.0 architecture, while the RTX 5000 Max-Q uses the AD103 chip with Ada Lovelace architecture. The N1X 48SM’s generation is listed as Blackwell IGP (N1x), while the RTX 5000 Max-Q is in the Ada-MW generation and is part of the GeForce 50-series.

Process node is the same at 5 nm from TSMC, but the die sizes are close: 382 mm² for the N1X 48SM and 379 mm² for the RTX 5000 Max-Q. Transistor count is unknown for the N1X 48SM, while the RTX 5000 Max-Q lists 45,900 million transistors with a density of 121.1M per mm².

Clock speeds differ in both directions. The N1X 48SM has a base clock of 741 MHz and a boost clock of 2346 MHz. The RTX 5000 Max-Q has a base clock of 930 MHz and a boost clock of 1680 MHz. Memory clocks are 1067 MHz (8.5 Gbps effective) for the N1X 48SM and 2250 MHz (18 Gbps effective) for the RTX 5000 Max-Q.

Memory configuration is a major divider. The N1X 48SM has 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The RTX 5000 Max-Q has 16 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth. The memory type alone creates different power and thermal profiles, though both are listed as IGP with no power connectors.

Shading units are 6144 for the N1X 48SM versus 9728 for the RTX 5000 Max-Q. Texture mapping units are 384 for the N1X 48SM versus 304 for the RTX 5000 Max-Q. Render output units are 48 for the N1X 48SM versus 112 for the RTX 5000 Max-Q. Ray tracing cores are 48 for the N1X 48SM versus 76 for the RTX 5000 Max-Q. Tensor cores are 192 for the N1X 48SM versus 304 for the RTX 5000 Max-Q.

Pixel rate is 112.6 GPixel/s for the N1X 48SM versus 188.2 GPixel/s for the RTX 5000 Max-Q. Texture rate is 900.9 GTexel/s for the N1X 48SM versus 510.7 GTexel/s for the RTX 5000 Max-Q. FP32 and FP16 are both 28.83 TFLOPS for the N1X 48SM versus 32.69 TFLOPS for the RTX 5000 Max-Q.

TDP is unknown for the N1X 48SM, while the RTX 5000 Max-Q lists 120 W. Bus interface is PCIe 5.0 x16 for the N1X 48SM versus PCIe 4.0 x16 for the RTX 5000 Max-Q. Display outputs are 1x HDMI for the N1X 48SM versus portable device dependent for the RTX 5000 Max-Q. API support is N/A for the N1X 48SM across DirectX, OpenGL, and Vulkan, while the RTX 5000 Max-Q supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Release dates are 2026-05-31 for the N1X 48SM and 2023-03-20 for the RTX 5000 Max-Q. The RTX 5000 Max-Q has a predecessor (Ampere-MW) and successor (Blackwell-MW), while the N1X 48SM has neither listed.

Where Each One Wins

The N1X 48SM wins in scenarios that benefit from high texture throughput and large memory capacity. Its texture rate of 900.9 GTexel/s is 76.4% higher than the RTX 5000 Max-Q’s 510.7 GTexel/s, which suggests an advantage in workloads that are texture-fill limited, such as certain content creation tasks or synthetic benchmarks that stress texturing. The 128 GB memory capacity is unmatched by the RTX 5000 Max-Q’s 16 GB, making the N1X 48SM the better fit for holding very large datasets, multiple high-resolution assets, or memory-intensive compute workloads that exceed 16 GB. The higher boost clock of 2346 MHz also gives it a per-cycle advantage in some throughput metrics.

The RTX 5000 Max-Q Ada Generation wins in compute throughput, memory bandwidth, and feature support. Its FP32 and FP16 figures of 32.69 TFLOPS are 13.4% above the N1X 48SM’s 28.83 TFLOPS, indicating stronger general-purpose compute and likely better performance in floating-point-heavy applications. The 576.0 GB/s memory bandwidth is more than double the N1X 48SM’s 273.2 GB/s, which gives it a clear edge in memory-bound workloads such as high-resolution gaming, real-time ray tracing, and large buffer operations. The pixel rate of 188.2 GPixel/s versus 112.6 GPixel/s also points to better rasterization performance, especially at high resolutions where pixel fill rate matters.

The RTX 5000 Max-Q also has the advantage of full API support, including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the N1X 48SM lists no APIs at all. This means the RTX 5000 Max-Q can run modern games and applications that rely on these APIs, whereas the N1X 48SM’s software ecosystem is not defined in the database. The RTX 5000 Max-Q’s higher ray tracing core count (76 versus 48) and tensor core count (304 versus 192) further support its position in ray-traced and AI-accelerated workloads.

In summary, the N1X 48SM is positioned for texture-heavy tasks and massive memory footprints, while the RTX 5000 Max-Q Ada Generation is the stronger all-around performer for compute, bandwidth, and software compatibility. The data shows a clear split: the N1X 48SM leads in texture rate and memory capacity, while the RTX 5000 Max-Q leads in FP32, FP16, pixel rate, memory bandwidth, ray tracing cores, tensor cores, and API support. The choice between them depends on which of these metrics matters more for the target workload.