NVIDIA N1X 48SM vs NVIDIA RTX 4500 Ada Generation Comparison

Head-to-Head Benchmarks

The recorded data for the NVIDIA N1X 48SM contains no benchmark entries, while the NVIDIA RTX 4500 Ada Generation has two measured results in the database. This makes a direct score-for-score comparison impossible, but the available measurements for the RTX 4500 place it clearly within a specific performance tier.

The RTX 4500 Ada Generation achieves a Geekbench OpenCL score of 160,786 and a Geekbench Vulkan score of 171,401. Its average benchmark score across all recorded tests stands at 166,094. This average places the card at the 97th percentile among all GPUs in the database, indicating that it outperforms the vast majority of recorded graphics hardware.

The N1X 48SM, by contrast, has an average benchmark score of zero and sits at the 50th percentile. The absence of recorded benchmarks means the database contains no quantitative evidence of its compute performance. The N1X 48SM does have a theoretical FP32 throughput of 28.83 TFLOPS and an FP16 throughput of 28.83 TFLOPS (1:1), while the RTX 4500 delivers 39.63 TFLOPS in both FP32 and FP16 (1:1). These peak rates suggest a substantial raw compute advantage for the RTX 4500, roughly 37% higher in FP32 terms, though real-world workloads rarely achieve peak rates.

The RTX 4500's nearest rivals in the database provide additional context for its standing. It edges out the NVIDIA RTX A5500 by 0.5%, with the A5500 averaging 165,217. It also leads the AMD Radeon PRO W7800 by 0.7%, which averages 164,894. Against the AMD Radeon Pro W6900X, the RTX 4500 trails by 1.5%, as that card averages 168,574. The RTX 4500 leads the NVIDIA A100 PCIe 40 GB by 2.2%, with the A100 averaging 162,504. These deltas are all within a narrow band of roughly 4 percentage points, placing the RTX 4500 in a tight cluster of high-end workstation accelerators.

The N1X 48SM has no nearest rivals listed in the database, so no comparative percentile or delta data exists for it. Its 50th percentile ranking is a default neutral position, not a measured outcome. The database shows zero wins for the N1X 48SM and zero wins for the RTX 4500 in head-to-head benchmark comparisons, reflecting the fact that no shared tests have been recorded.

The pixel and texture rates further separate the two. The RTX 4500 produces 206.4 GPixel/s and 619.2 GTexel/s, while the N1X 48SM produces 112.6 GPixel/s and 900.9 GTexel/s. The RTX 4500 holds a clear lead in pixel throughput, delivering roughly 83% more pixels per second. The N1X 48SM, however, has a higher texture rate, exceeding the RTX 4500 by about 45%. This divergence suggests different design priorities: the N1X 48SM allocates more texture units (384 versus 240) relative to its shading units, while the RTX 4500 has more ROPs (80 versus 48) and a higher boost clock.

FAQ

Q: Does the NVIDIA RTX 4500 Ada Generation have recorded benchmark scores?

A: Yes, the database lists two results: 160,786 in Geekbench OpenCL and 171,401 in Geekbench Vulkan. Its average benchmark score is 166,094, placing it at the 97th percentile among all GPUs.

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

A: No, the database contains no benchmark entries for the N1X 48SM. Its average benchmark score is recorded as zero and its percentile ranking is 50, which serves as a neutral placeholder rather than a measured result.

Q: How does the RTX 4500 compare to its nearest rivals?

A: The RTX 4500 is 0.5% ahead of the NVIDIA RTX A5500 (165,217 average) and 0.7% ahead of the AMD Radeon PRO W7800 (164,894 average). It trails the AMD Radeon Pro W6900X by 1.5% (168,574 average) and leads the NVIDIA A100 PCIe 40 GB by 2.2% (162,504 average).

Q: Which card has higher theoretical compute throughput?

A: The RTX 4500 delivers 39.63 TFLOPS in FP32 and FP16 (1:1), while the N1X 48SM delivers 28.83 TFLOPS in both FP32 and FP16 (1:1). The RTX 4500's peak rates are approximately 37% higher.

Q: What are the memory configurations of these two GPUs?

A: The N1X 48SM uses 128 GB of LPDDR5X on a 256-bit bus, yielding 273.2 GB/s of bandwidth. The RTX 4500 uses 24 GB of GDDR6 on a 192-bit bus, yielding 432.0 GB/s of bandwidth. The RTX 4500 has 58% more memory bandwidth despite having less capacity and a narrower bus.

Q: Which card has better pixel and texture throughput?

A: The RTX 4500 produces 206.4 GPixel/s versus 112.6 GPixel/s for the N1X 48SM, a lead of roughly 83%. The N1X 48SM produces 900.9 GTexel/s versus 619.2 GTexel/s for the RTX 4500, a lead of about 45%.

The Verdict

The recorded data provides a straightforward basis for selection in workloads that rely on measured compute performance. The RTX 4500 Ada Generation is the only one of the two with benchmark results, and those results are strong. A 97th percentile ranking among all GPUs, combined with an average score of 166,094, places it in the upper tier of workstation accelerators. Its nearest rivals all fall within a narrow performance band, and the RTX 4500 sits competitively within that group, leading two of the four listed alternatives and trailing one by only 1.5%.

The N1X 48SM presents a different profile entirely. With no recorded benchmarks, its performance cannot be validated against the RTX 4500 or any other GPU in the database. Its theoretical FP32 and FP16 rates are lower than the RTX 4500's, and its pixel throughput is substantially lower. However, it does offer advantages in specific areas: a texture rate that exceeds the RTX 4500 by roughly 45%, memory capacity of 128 GB versus 24 GB, and a PCIe 5.0 x16 interface versus PCIe 4.0 x16. These characteristics point toward a design aimed at memory-heavy or texture-heavy workloads rather than raw compute throughput.

The RTX 4500 also has a fully populated API stack, with DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 support. The N1X 48SM lists no API support in the database, marking it as incompatible with standard graphics APIs or at least unverified for such use. This is a decisive factor for any application that depends on those interfaces.

For users whose workloads are represented by the Geekbench OpenCL and Vulkan tests, the RTX 4500 is the clear choice. Its measured performance, high percentile ranking, and competitive standing against named rivals all support this conclusion. For users who need massive memory capacity, higher texture throughput, or the newer PCIe 5.0 bus, the N1X 48SM offers those features, but the database provides no evidence of its actual compute capability. The RTX 4500 is the only option with verified performance data, and the data shows it performing at a high level.

Specification Differences

The two GPUs differ across nearly every recorded specification field.

The RTX 4500 uses the AD103 chip on the Ada Lovelace architecture, fabricated on a 5 nm process at TSMC with 45,900 million transistors on a 379 mm² die. The N1X 48SM uses the GB20B chip on the Blackwell 2.0 architecture, also fabricated on a 5 nm process at TSMC, with a 382 mm² die size and an unknown transistor count. The RTX 4500 has a transistor density of 121.1M per mm², while the N1X 48SM has no recorded density value.

Clock speeds differ significantly. The N1X 48SM has a base clock of 741 MHz and a boost clock of 2346 MHz. The RTX 4500 has a base clock of 2070 MHz and a boost clock of 2580 MHz. The RTX 4500's base clock is nearly three times higher, and its boost clock is about 10% higher.

Memory configurations diverge sharply. The N1X 48SM offers 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The RTX 4500 offers 24 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The N1X 48SM has more than five times the capacity but 37% less bandwidth. Memory clock rates also differ: the N1X 48SM runs at 1067 MHz (8.5 Gbps effective), while the RTX 4500 runs at 2250 MHz (18 Gbps effective).

Compute unit counts vary. The N1X 48SM has 6144 shading units, 384 TMUs, 48 ROPs, 48 RT cores, and 192 tensor cores. The RTX 4500 has 7680 shading units, 240 TMUs, 80 ROPs, 60 RT cores, and 240 tensor cores. The RTX 4500 has 25% more shading units, 67% more ROPs, 25% more RT cores, and 25% more tensor cores. The N1X 48SM has 60% more TMUs.

Pixel and texture rates follow these unit counts. The RTX 4500 produces 206.4 GPixel/s versus 112.6 GPixel/s for the N1X 48SM. The N1X 48SM produces 900.9 GTexel/s versus 619.2 GTexel/s for the RTX 4500.

Power and physical specifications differ as well. The RTX 4500 has a TDP of 210 W, a suggested PSU of 550 W, a dual-slot width, and dimensions of 245 mm (9.6 inches) in length and 112 mm (4.4 inches) in height. The N1X 48SM has an unknown TDP, no power connectors, and an IGP slot width. Both list no power connectors in the database.

Bus interfaces and display outputs differ. The N1X 48SM uses PCIe 5.0 x16 and has one HDMI output. The RTX 4500 uses PCIe 4.0 x16 and has four DisplayPort 1.4a outputs.

API support is present only for the RTX 4500, which lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists no API support.

Release dates differ by roughly three years. The RTX 4500 was released on August 8, 2023. The N1X 48SM has a release date of May 31, 2026. The RTX 4500 has a predecessor (Workstation Ampere) and a successor (Blackwell PRO W), while the N1X 48SM has neither recorded.

Architecture Differences

The two GPUs represent different architectural generations from NVIDIA. The N1X 48SM is built on Blackwell 2.0, classified as part of the Blackwell IGP (N1x) generation. The RTX 4500 Ada Generation is built on Ada Lovelace, classified under Workstation Ada. Both use the same 5 nm TSMC process, but the underlying designs are distinct.

The N1X 48SM uses the GB20B chip, which is a Blackwell IGP part. Its integrated design is reflected in its IGP slot width, lack of power connectors, and single HDMI output. The RTX 4500 uses the AD103 chip, a discrete workstation GPU with a dual-slot form factor and four DisplayPort outputs. The N1X 48SM's die is slightly larger at 382 mm² versus 379 mm², but its transistor count is unknown, whereas the RTX 4500 is recorded at 45,900 million transistors with a density of 121.1M per mm².

The compute architectures differ in their core organization. The N1X 48SM pairs 6144 shading units with 384 TMUs and only 48 ROPs, producing a high texture-to-pixel ratio. The RTX 4500 pairs 7680 shading units with 240 TMUs and 80 ROPs, producing a more balanced ratio that favors pixel output. The RTX 4500 also has more RT cores (60 versus 48) and more tensor cores (240 versus 192), indicating a stronger ray tracing and AI acceleration allocation.

Memory architecture reflects the different design goals. The N1X 48SM uses LPDDR5X, a low-power memory type suited to integrated designs, with 128 GB capacity on a 256-bit bus. The RTX 4500 uses GDDR6, a discrete GPU memory type, with 24 GB on a 192-bit bus. The N1X 48SM's wider bus compensates for lower memory clocks, but the RTX 4500's higher clock rate results in 58% more bandwidth despite the narrower bus.

Clock behavior also differs. The N1X 48SM has a very low base clock of 741 MHz but boosts to 2346 MHz, a ratio of more than three times. The RTX 4500 has a higher base clock of 2070 MHz and boosts to 2580 MHz, a modest 25% increase. This suggests the N1X 48SM relies heavily on boost behavior to reach its rated throughput, while the RTX 4500 maintains high clocks more consistently.

API support represents a fundamental architectural difference. The N1X 48SM lists no DirectX, OpenGL, or Vulkan support in the database. The RTX 4500 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The absence of API support for the N1X 48SM indicates it may be designed for compute-only or embedded workloads rather than general graphics rendering.

The bus interface also differs. The N1X 48SM uses PCIe 5.0 x16, the newer standard, while the RTX 4500 uses PCIe 4.0 x16. The N1X 48SM's IGP form factor suggests it may connect through a host system's integrated path rather than a traditional expansion slot, despite the x16 interface designation.

The release timeline underscores the generational gap. The RTX 4500 launched in August 2023 as part of the Ada Lovelace workstation lineup, with a predecessor in Workstation Ampere and a successor in Blackwell PRO W. The N1X 48SM is scheduled for May 2026, placing it in a newer generation with no recorded predecessor or successor. The N1X 48SM's production status is Active, as is the RTX 4500's, so both are currently available in the database's records.