NVIDIA N1X 48SM vs NVIDIA RTX 4000 Ada Generation Comparison

Where Each One Wins

The benchmark record for this comparison is one-sided. The NVIDIA RTX 4000 Ada Generation holds every recorded win, with no head-to-head benchmark entries showing a victory for the NVIDIA N1X 48SM. The RTX 4000 Ada Generation records a Geekbench OpenCL score of 146,593 and a Geekbench Vulkan score of 123,842. The N1X 48SM has no benchmark scores in the database, placing it at the 50th percentile among all GPUs with an average benchmark score of zero. By contrast, the RTX 4000 Ada Generation sits at the 95th percentile with an average benchmark score of 135,218.

The use-case split is therefore clear: the RTX 4000 Ada Generation is the only part with measurable compute results, and it demonstrates strong cross-API performance. Its OpenCL result exceeds its Vulkan result by roughly 22,751 points, indicating that general compute workloads scale well on this architecture. The N1X 48SM, as an integrated graphics processor with no recorded benchmarks, cannot be positioned for any workload based on measured data. It exists in the database as a specification entry, not a tested performer.

Architecture Differences

The two GPUs come from different NVIDIA generations and target different system roles. The N1X 48SM uses the GB20B chip, built on the Blackwell 2.0 architecture, and belongs to the Blackwell IGP (N1x) generation. It is manufactured on a 5 nm process at TSMC with a die size of 382 mm². The RTX 4000 Ada Generation uses the AD104 chip, built on the Ada Lovelace architecture, and belongs to the Workstation Ada generation. It is also manufactured on a 5 nm process at TSMC, but with a die size of 294 mm². The RTX 4000 Ada Generation carries 35,800 million transistors, giving a transistor density of 121.8M per mm²; the N1X 48SM has an unknown transistor count.

Compute resources differ in layout. Both parts have 6,144 shading units and 192 tensor cores, and both have 48 ray tracing cores. However, the N1X 48SM has 384 texture mapping units, while the RTX 4000 Ada Generation has 192. The RTX 4000 Ada Generation has 64 raster output units, while the N1X 48SM has 48. These differences drive pixel and texture throughput, favoring the N1X 48SM in texture rate and the RTX 4000 Ada Generation in pixel rate. The N1X 48SM records 900.9 GTexel/s, while the RTX 4000 Ada Generation records 417.6 GTexel/s. The RTX 4000 Ada Generation records 139.2 GPixel/s, while the N1X 48SM records 112.6 GPixel/s.

The N1X 48SM is an integrated graphics processor with no slot width, no power connectors, and no suggested PSU. The RTX 4000 Ada Generation is a single-slot discrete card with one 16-pin power connector and a suggested PSU of 300 W. The N1X 48SM uses PCIe 5.0 x16, while the RTX 4000 Ada Generation uses PCIe 4.0 x16. The N1X 48SM has one HDMI output; the RTX 4000 Ada Generation has four DisplayPort 1.4a outputs. The RTX 4000 Ada Generation supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists no supported graphics APIs.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two GPUs. The only recorded scores belong to the RTX 4000 Ada Generation. Its Geekbench OpenCL score is 146,593, and its Geekbench Vulkan score is 123,842. These results place it ahead of several nearby rivals in the database. The NVIDIA A10M has an average score of 135,230, a 0 percent delta. The AMD Radeon PRO W6800 scores 135,396, a -0.1 percent delta. The AMD Radeon Pro W6800X Duo scores 135,774, a -0.4 percent delta. The AMD Radeon PRO V620 scores 136,472, a -0.9 percent delta. The RTX 4000 Ada Generation’s average benchmark score of 135,218 is effectively tied with the A10M, within a rounding of the same value.

For the N1X 48SM, there are no benchmark scores to compare. Its percentile rank of 50 versus the RTX 4000 Ada Generation’s 95 indicates a wide gap in measured performance, but the absence of actual scores for the N1X 48SM prevents a precise delta calculation. The data shows that the RTX 4000 Ada Generation is a tested, competitive workstation GPU, while the N1X 48SM remains untested in the current database.

Specification Differences

The two parts differ in nearly every measurable specification except shading units, tensor cores, and ray tracing cores. The N1X 48SM has 128 GB of LPDDR5X memory on a 256-bit bus, delivering 273.2 GB/s of bandwidth. The RTX 4000 Ada Generation has 20 GB of GDDR6 memory on a 160-bit bus, delivering 360.0 GB/s of bandwidth. The memory clock differs: the N1X 48SM runs at 1067 MHz with 8.5 Gbps effective, while the RTX 4000 Ada Generation runs at 2250 MHz with 18 Gbps effective.

Clock speeds favor the RTX 4000 Ada Generation at the base frequency. The N1X 48SM has a base clock of 741 MHz and a boost clock of 2346 MHz. The RTX 4000 Ada Generation has a base clock of 1500 MHz and a boost clock of 2175 MHz. The RTX 4000 Ada Generation has a higher base clock by 759 MHz, but the N1X 48SM has a higher boost clock by 171 MHz.

Compute throughput favors the N1X 48SM in FP32 and FP16. The N1X 48SM records 28.83 TFLOPS in both FP32 and FP16 with a 1:1 ratio. The RTX 4000 Ada Generation records 26.73 TFLOPS in both FP32 and FP16 with a 1:1 ratio. The N1X 48SM leads by 2.10 TFLOPS in both precision modes.

Texture and pixel rates split between the two. The N1X 48SM has a texture rate of 900.9 GTexel/s, more than double the RTX 4000 Ada Generation’s 417.6 GTexel/s. The RTX 4000 Ada Generation has a pixel rate of 139.2 GPixel/s, ahead of the N1X 48SM’s 112.6 GPixel/s.

Physical and power specifications differ completely. The N1X 48SM is an IGP with no slot width, no power connectors, and no TDP listed. The RTX 4000 Ada Generation is a single-slot card with a 130 W TDP, one 16-pin connector, and a 300 W suggested PSU. The N1X 48SM measures no listed dimensions; the RTX 4000 Ada Generation measures 245 mm in length (9.6 inches) and 112 mm in height (4.4 inches).

Release timing and production status also differ. The N1X 48SM has a release date of May 31, 2026, and is listed as Active. The RTX 4000 Ada Generation has a release date of August 8, 2023, is listed as Active, and has a predecessor (Workstation Ampere) and a successor (Blackwell PRO W). The N1X 48SM has no listed predecessor or successor.

FAQ

Q: Which GPU has more memory bandwidth?

A: The RTX 4000 Ada Generation has higher memory bandwidth at 360.0 GB/s, despite a narrower 160-bit bus. The N1X 48SM has 273.2 GB/s over a 256-bit bus.

Q: How do the shading unit counts compare?

A: Both GPUs have exactly 6,144 shading units. They also share identical counts of 192 tensor cores and 48 ray tracing cores.

Q: What is the FP32 performance difference?

A: The N1X 48SM delivers 28.83 TFLOPS in FP32, ahead of the RTX 4000 Ada Generation’s 26.73 TFLOPS. Both maintain the same figures in FP16 with a 1:1 ratio.

Q: Which GPU has more display outputs?

A: The RTX 4000 Ada Generation has four DisplayPort 1.4a outputs. The N1X 48SM has a single HDMI output.

Q: Are there any benchmark scores for the N1X 48SM?

A: No. The N1X 48SM has no benchmark entries in the database, while the RTX 4000 Ada Generation records a Geekbench OpenCL score of 146,593 and a Geekbench Vulkan score of 123,842.

Q: What architecture does each GPU use?

A: The N1X 48SM uses the Blackwell 2.0 architecture with the GB20B chip. The RTX 4000 Ada Generation uses the Ada Lovelace architecture with the AD104 chip.

The Verdict

The data supports a single conclusion: the RTX 4000 Ada Generation is the only tested performer, and it occupies a dominant position in the benchmark database. Its average benchmark score of 135,218 places it at the 95th percentile, with nearby rivals within 0.9 percent or less. The N1X 48SM sits at the 50th percentile with no recorded scores.

For users who require measured compute results, the RTX 4000 Ada Generation has the evidence. Its OpenCL score of 146,593 and Vulkan score of 123,842 demonstrate strong cross-API capability. It also offers four display outputs, a 130 W TDP, and a single-slot form factor, making it a practical discrete workstation card.

The N1X 48SM offers higher FP32 throughput on paper, 28.83 TFLOPS versus 26.73 TFLOPS, and a larger memory pool at 128 GB versus 20 GB. It also has a higher texture rate at 900.9 GTexel/s and a newer PCIe interface at 5.0 x16. But none of these specifications are backed by benchmark results in the database. Its role as an integrated graphics processor with no power connectors and no measured performance means it cannot be recommended for any workload on current evidence.

The RTX 4000 Ada Generation is the verified option. The N1X 48SM remains a specification entry with potential, but the database contains no data to support performance claims. The verdict follows the recorded measurements, not the theoretical specifications.