NVIDIA N1X 48SM vs NVIDIA RTX PRO 5000 Blackwell Comparison

Head-to-Head Benchmarks

The recorded data for the NVIDIA N1X 48SM shows no benchmark entries, while the NVIDIA RTX PRO 5000 Blackwell carries three distinct test results. The RTX PRO 5000 Blackwell scores 9,579.5 in 3DMark Steel Nomad DX12, 254,116 in Geekbench OpenCL, and 282,631 in Geekbench Vulkan. Its average benchmark score sits at 182,109, placing it in the 98th percentile of all GPUs in the database. The N1X 48SM has an average benchmark score of zero and sits at the 50th percentile, which reflects the absence of recorded test data rather than a measured performance level.

Comparing the two directly, the RTX PRO 5000 Blackwell delivers 66.94 TFLOPS of FP32 compute, while the N1X 48SM reaches 28.83 TFLOPS. That difference translates to roughly 2.3 times the raw single-precision throughput for the RTX PRO 5000 Blackwell. In FP16, the RTX PRO 5000 Blackwell again posts 66.94 TFLOPS, while the N1X 48SM posts 28.83 TFLOPS with a 1:1 ratio. Texture fill rates show a narrower gap: the RTX PRO 5000 Blackwell achieves 1,045.9 GTexel/s against 900.9 GTexel/s for the N1X 48SM, a lead of about 16 percent. Pixel throughput favors the RTX PRO 5000 Blackwell more decisively, with 380.3 GPixel/s versus 112.6 GPixel/s, a 3.4 times advantage.

Memory bandwidth separates the two substantially. The RTX PRO 5000 Blackwell uses GDDR7 on a 384-bit bus, delivering 1.34 TB/s. The N1X 48SM uses LPDDR5X on a 256-bit bus, producing 273.2 GB/s. The RTX PRO 5000 Blackwell therefore provides roughly 4.9 times the memory bandwidth. This difference is particularly relevant for workloads that scale with memory throughput, such as large dataset processing or high-resolution rendering.

The nearest rival data for the RTX PRO 5000 Blackwell provides context for its standing. Against the NVIDIA A100 SXM4 80 GB, the RTX PRO 5000 Blackwell scores 0.9 percent lower in average benchmark score. Against the NVIDIA RTX 5000 Ada Generation, it scores 1.4 percent lower. Against the NVIDIA GeForce RTX 4090 D, it scores 2.3 percent higher. Against the NVIDIA A100 SXM4 40 GB, it scores 2.7 percent lower. These deltas are small, indicating that the RTX PRO 5000 Blackwell sits in a tightly contested performance band among high-end accelerators. The N1X 48SM has no nearest rivals listed, so no comparative percentile positioning can be established from the database.

Clock speeds differ notably between the two parts. The N1X 48SM has a base clock of 741 MHz and a boost clock of 2,346 MHz. The RTX PRO 5000 Blackwell has a base clock of 1,740 MHz and a boost clock of 2,377 MHz. The base clock gap is large, with the RTX PRO 5000 Blackwell running at more than double the N1X 48SM's base frequency. Boost clocks land close to each other, with the RTX PRO 5000 Blackwell ahead by only 31 MHz. Memory clocks also diverge: the N1X 48SM runs memory at 1,067 MHz (8.5 Gbps effective), while the RTX PRO 5000 Blackwell runs at 1,750 MHz (28 Gbps effective).

The RTX PRO 5000 Blackwell packs 14,080 shading units, 440 texture mapping units, 160 ROPs, 110 RT cores, and 440 tensor cores. The N1X 48SM has 6,144 shading units, 384 TMUs, 48 ROPs, 48 RT cores, and 192 tensor cores. The shading unit count for the RTX PRO 5000 Blackwell is 2.3 times higher, its ROP count is 3.3 times higher, and its RT core count is 2.3 times higher. Tensor core counts show a 2.3 times advantage as well. These structural differences align with the FP32 throughput gap.

The Verdict

The data indicates that the RTX PRO 5000 Blackwell is the substantially more capable GPU across every measured or specified compute metric. Its FP32 throughput, memory bandwidth, pixel rate, texture rate, and core counts all exceed those of the N1X 48SM by factors ranging from 1.2 to 4.9. The RTX PRO 5000 Blackwell also has recorded benchmark results, a 98th percentile ranking, and an average score of 182,109, whereas the N1X 48SM has no recorded scores and sits at the 50th percentile by default.

The N1X 48SM does have advantages in specific areas. It offers 128 GB of memory versus 48 GB, a 2.7 times larger capacity. It uses LPDDR5X, which typically consumes less power than GDDR7, though the database does not list a TDP for the N1X 48SM. It is an IGP (integrated graphics processor) with no power connectors and no slot width, meaning it fits into a system without a discrete GPU slot. The RTX PRO 5000 Blackwell is a dual-slot card requiring a 16-pin connector and a 700 W suggested power supply. For systems with limited physical space or power delivery, the N1X 48SM presents a viable integrated option.

However, from a pure performance standpoint, the RTX PRO 5000 Blackwell dominates. Its 66.94 TFLOPS FP32 output is more than double the N1X 48SM's 28.83 TFLOPS. Its 1.34 TB/s bandwidth is nearly five times higher. Its 98th percentile ranking places it among the top tier of all GPUs in the database, while the N1X 48SM's 50th percentile is not backed by any measured performance data. Users needing maximum throughput, high-bandwidth memory access, or professional rendering capabilities should look to the RTX PRO 5000 Blackwell. Users prioritizing memory capacity or integrated form factor should consider the N1X 48SM, provided their workloads favor capacity over bandwidth.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA RTX PRO 5000 Blackwell has an average benchmark score of 182,109. The NVIDIA N1X 48SM has an average benchmark score of zero, as no benchmarks are recorded for it.

Q: How much memory does each GPU offer?

A: The NVIDIA N1X 48SM provides 128 GB of LPDDR5X memory. The NVIDIA RTX PRO 5000 Blackwell provides 48 GB of GDDR7 memory.

Q: What is the FP32 performance difference?

A: The RTX PRO 5000 Blackwell delivers 66.94 TFLOPS of FP32 compute. The N1X 48SM delivers 28.83 TFLOPS. The RTX PRO 5000 Blackwell is approximately 2.3 times faster.

Q: Which GPU has higher memory bandwidth?

A: The RTX PRO 5000 Blackwell has 1.34 TB/s of memory bandwidth. The N1X 48SM has 273.2 GB/s. The RTX PRO 5000 Blackwell leads by roughly 4.9 times.

Q: Are there differences in physical form factor?

A: Yes. The N1X 48SM is an IGP with no slot width, no power connectors, and no listed dimensions. The RTX PRO 5000 Blackwell is a dual-slot card measuring 267 mm by 111 mm by 40 mm, requiring one 16-pin power connector.

Q: What API support does each GPU provide?

A: The RTX PRO 5000 Blackwell supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM has no API support listed in the database.

Specification Differences

The two GPUs differ across nearly every specification field. The N1X 48SM uses a GB20B chip, while the RTX PRO 5000 Blackwell uses a GB202 chip. Both share the Blackwell 2.0 architecture and a 5 nm process node at TSMC. The RTX PRO 5000 Blackwell has 92,200 million transistors on a 750 mm² die, with a transistor density of 122.9M per mm². The N1X 48SM has an unknown transistor count, a 382 mm² die size, and no listed transistor density.

Clock specifications diverge. The N1X 48SM runs at a 741 MHz base and 2,346 MHz boost. The RTX PRO 5000 Blackwell runs at 1,740 MHz base and 2,377 MHz boost. Memory clocks differ as well: 1,067 MHz (8.5 Gbps effective) for the N1X 48SM, versus 1,750 MHz (28 Gbps effective) for the RTX PRO 5000 Blackwell.

Memory configuration shows a clear split. The N1X 48SM has 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The RTX PRO 5000 Blackwell has 48 GB of GDDR7 on a 384-bit bus with 1.34 TB/s bandwidth. The N1X 48SM offers higher capacity, while the RTX PRO 5000 Blackwell offers much higher bandwidth.

Core counts differ across the board. The N1X 48SM has 6,144 shading units, 384 TMUs, 48 ROPs, 48 RT cores, and 192 tensor cores. The RTX PRO 5000 Blackwell has 14,080 shading units, 440 TMUs, 160 ROPs, 110 RT cores, and 440 tensor cores. Pixel rate and texture rate follow: the N1X 48SM produces 112.6 GPixel/s and 900.9 GTexel/s, while the RTX PRO 5000 Blackwell produces 380.3 GPixel/s and 1,045.9 GTexel/s.

Power and physical characteristics are starkly different. The N1X 48SM has an unknown TDP, is an IGP with no power connectors, and has no suggested PSU. The RTX PRO 5000 Blackwell has a 300 W TDP, is dual-slot, uses one 16-pin connector, and requires a 700 W suggested PSU. Display outputs also differ: the N1X 48SM has one HDMI port, while the RTX PRO 5000 Blackwell has four DisplayPort 2.1b ports. The bus interface is PCIe 5.0 x16 for both.

Release dates separate the products. The RTX PRO 5000 Blackwell was released on March 17, 2025, with a launch MSRP of 5,099 USD. The N1X 48SM has a later release date of May 31, 2026, and no launch MSRP listed. The RTX PRO 5000 Blackwell lists a predecessor named Workstation Ada, while the N1X 48SM has no predecessor or successor.

Architecture Differences

Both GPUs are built on Blackwell 2.0 architecture and use a 5 nm TSMC process, but their chip designs diverge significantly. The N1X 48SM uses the GB20B chip, which the database identifies as part of the Blackwell IGP (N1x) generation. The RTX PRO 5000 Blackwell uses the GB202 chip, part of the Blackwell PRO W (x000) generation. The die size difference is substantial: the N1X 48SM measures 382 mm², while the RTX PRO 5000 Blackwell measures 750 mm², nearly double the area.

Transistor counts reinforce the scale gap. The RTX PRO 5000 Blackwell packs 92,200 million transistors, while the N1X 48SM's transistor count is listed as unknown. The RTX PRO 5000 Blackwell's density of 122.9M per mm² indicates a dense implementation. The N1X 48SM's smaller die likely reflects its integrated nature, but without transistor data, further density comparison is not possible.

Core architecture differs in counts and ratios. The RTX PRO 5000 Blackwell has 14,080 shading units against 6,144 for the N1X 48SM, a 2.3 times ratio. RT cores number 110 versus 48, a 2.3 times ratio. Tensor cores number 440 versus 192, also a 2.3 times ratio. ROPs show the largest ratio at 3.3 times (160 versus 48), while TMUs are closer at 1.15 times (440 versus 384). These ratios suggest the RTX PRO 5000 Blackwell allocates more silicon to rasterization and compute throughput, while the N1X 48SM maintains a relatively high texture unit count given its smaller core array.

Memory architecture differs by type and bus width. The N1X 48SM uses LPDDR5X, a low-power memory typically integrated on-package for space-constrained designs. The RTX PRO 5000 Blackwell uses GDDR7, a high-bandwidth discrete memory standard. Bus widths measure 256 bits for the N1X 48SM and 384 bits for the RTX PRO 5000 Blackwell. The effective memory speed of 28 Gbps for the RTX PRO 5000 Blackwell versus 8.5 Gbps for the N1X 48SM contributes to the bandwidth gap.

Feature sets also differ. The RTX PRO 5000 Blackwell supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, indicating full modern graphics API compatibility. The N1X 48SM lists no API support, which aligns with its IGP designation but limits its use in standard graphics applications. The RTX PRO 5000 Blackwell provides four DisplayPort 2.1b outputs, while the N1X 48SM provides a single HDMI output. The RTX PRO 5000 Blackwell requires active cooling and a power connector, while the N1X 48SM operates as an integrated part without external power needs.

Where Each One Wins

The RTX PRO 5000 Blackwell wins in raw compute scenarios. Its 66.94 TFLOPS FP32 output and matching FP16 throughput make it suitable for heavy numerical workloads such as rendering, simulation, or machine learning inference that rely on shader or tensor operations. Its 440 tensor cores provide 2.3 times the tensor core count of the N1X 48SM, which supports accelerated matrix operations. The RTX PRO 5000 Blackwell's 1.34 TB/s memory bandwidth ensures that large data sets can feed these compute units without stalling, a critical factor for bandwidth-bound tasks.

The RTX PRO 5000 Blackwell also wins in pixel-heavy workloads. Its 380.3 GPixel/s pixel rate is 3.4 times higher than the N1X 48SM's 112.6 GPixel/s. Its 160 ROPs enable faster rasterization and framebuffer writes. Its 110 RT cores provide more ray tracing throughput than the N1X 48SM's 48 RT cores, making it the stronger option for ray-traced rendering or real-time visualization. The four DisplayPort 2.1b outputs support multi-display professional setups, while the N1X 48SM's single HDMI limits display connectivity.

The N1X 48SM wins in memory capacity. Its 128 GB of LPDDR5X is 2.7 times the 48 GB of GDDR7 on the RTX PRO 5000 Blackwell. For workloads that require holding very large datasets in memory, such as massive model loading or large-scale data analytics, the N1X 48SM offers more headroom. The tradeoff is bandwidth: 273.2 GB/s versus 1.34 TB/s, meaning the N1X 48SM can store more but move it slower.

The N1X 48SM wins in physical integration. Being an IGP with no slot width, no power connectors, and no suggested PSU, it can be deployed in systems without discrete GPU accommodation. The RTX PRO 5000 Blackwell requires a dual-slot card, a 16-pin power connector, and a 700 W power supply. For compact or power-constrained systems, the N1X 48SM is the practical choice. Its unknown TDP suggests low power draw, though the database does not confirm this.

The RTX PRO 5000 Blackwell wins in benchmark-proven performance. It carries three recorded scores: 9,579.5 in 3DMark Steel Nomad DX12, 254,116 in Geekbench OpenCL, and 282,631 in Geekbench Vulkan. Its average score of 182,109 and 98th percentile rank confirm it as a top-tier performer. The N1X 48SM has no recorded benchmarks, so its real-world performance remains unmeasured in this database. For users who rely on validated performance data, the RTX PRO 5000 Blackwell is the only option with evidence.

The RTX PRO 5000 Blackwell wins in professional graphics API support. With DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, it can run modern graphics applications. The N1X 48SM lists no API support, which may restrict it to specialized or non-standard workloads. The RTX PRO 5000 Blackwell's release date of March 17, 2025, also precedes the N1X 48SM's May 31, 2026 date, giving it a longer track record in the field. The N1X 48SM's launch MSRP is not listed, while the RTX PRO 5000 Blackwell carries a launch MSRP of 5,099 USD, which positions it as a high-end professional product.