NVIDIA GeForce RTX 5070 vs NVIDIA N1X 48SM Comparison

The Verdict

The data presents a stark contrast between two NVIDIA Blackwell 2.0 products. The GeForce RTX 5070 is a complete, active retail graphics card with a fully populated benchmark profile and a recorded average score of 40377, placing it in the 82nd percentile of all GPUs. The N1X 48SM, by contrast, is an integrated graphics processor (IGP) with no recorded benchmarks, an average score of 0, and a 50th percentile ranking. The RTX 5070 is the only choice for any application requiring measurable graphics performance, as the N1X 48SM has no benchmark data to validate its capabilities. The RTX 5070 carries a launch MSRP of 549 USD, while the N1X 48SM has no listed launch price. For users needing a discrete, benchmarked solution, the RTX 5070 stands alone. For systems requiring an integrated processor with a unified memory pool of 128 GB, the N1X 48SM is the only option, but its performance remains entirely undocumented in the database.

Architecture Differences

Both processors share the Blackwell 2.0 architecture and are fabricated on a 5 nm process at TSMC, yet they diverge significantly in their physical design and intended role. The RTX 5070 uses the GB205 chip, while the N1X 48SM uses the GB20B chip. The RTX 5070 is a discrete card with a die size of 263 mm² and 31,100 million transistors, achieving a transistor density of 118.3M per mm². The N1X 48SM has a larger die at 382 mm², but its transistor count is listed as unknown, leaving its density unspecified. The N1X 48SM is classified as an IGP, meaning it is integrated into a system rather than installed as a separate card, and it occupies no slot width with no power connectors required.

Core counts show an interesting split. Both parts feature 6144 shading units, 48 RT cores, and 192 tensor cores. The RTX 5070 pairs these with 192 texture mapping units and 80 raster operation units. The N1X 48SM doubles the TMU count to 384 but reduces ROPs to 48. This configuration gives the N1X 48SM a higher texture rate of 900.9 GTexel/s compared to 482.3 GTexel/s for the RTX 5070, while the RTX 5070 achieves a higher pixel rate of 201.0 GPixel/s versus 112.6 GPixel/s for the IGP. The RTX 5070 also holds the clock advantage, with a base clock of 2325 MHz and boost of 2512 MHz, while the N1X 48SM operates at a 741 MHz base and 2346 MHz boost.

Memory architecture differs radically. The RTX 5070 uses 12 GB of GDDR7 on a 192-bit bus, delivering 672.0 GB/s of bandwidth at 1750 MHz (28 Gbps effective). The N1X 48SM uses 128 GB of LPDDR5X on a 256-bit bus, but its bandwidth is only 273.2 GB/s at 1067 MHz (8.5 Gbps effective). The IGP's much larger capacity comes at a substantial bandwidth cost. The RTX 5070 supports the full DirectX 12 Ultimate (12_2) API, OpenGL 4.6, and Vulkan 1.4, while the N1X 48SM lists N/A for all three APIs, indicating it is not designed for standard graphics API workloads.

Head-to-Head Benchmarks

The head-to-head benchmark table is empty, and the N1X 48SM has no benchmark entries in its profile. The RTX 5070, however, has a complete set of recorded scores. In 3DMark Steel Nomad DX12, the RTX 5070 scores 5077. In Geekbench, it records 172660 in OpenCL and 178923 in Vulkan. Passmark results show 29137 in G3D, 15787 in GPU Compute, 1305 in G2D, and legacy DirectX tests at 320 for DX9, 277 for DX11, 180 for DX10, and 108 for DX12. The average benchmark score across all tests is 40377.

With no scores for the N1X 48SM, a direct numerical comparison is impossible. The database does not provide any delta percentages or win counts for either processor. The RTX 5070's nearest rivals, based on average score, are AMD Radeon Pro 580 at 40318 (0.1% delta), AMD Radeon Pro WX 7100 at 40063 (0.8% delta), AMD Radeon Pro 5300 at 40870 (-1.2% delta), and NVIDIA RTX A500 Mobile at 39568 (2% delta). These figures show the RTX 5070 sits within a tight cluster of workstation-class GPUs, slightly ahead of some and slightly behind others. The N1X 48SM has no rivals listed, reflecting its lack of measured data.

The absence of benchmarks for the N1X 48SM means the recorded data provides no evidence of its performance in any workload. The RTX 5070, by contrast, demonstrates measurable capability across DX12, Vulkan, OpenCL, and legacy DirectX tests. Its percentile ranking of 82 versus the N1X 48SM's 50 further indicates that, based on the database's scoring methodology, the RTX 5070 outperforms the majority of all recorded GPUs, while the N1X 48SM sits at the median with no scored tests behind it.

Specification Differences

The two processors diverge across nearly every specification field. The RTX 5070 is a dual-slot card measuring 245 mm in length, 115 mm in height, and 40 mm in width, while the N1X 48SM has no listed dimensions and is classified as an IGP. The RTX 5070 requires a single 16-pin power connector and a 600 W suggested PSU, while the N1X 48SM requires no power connectors and has no suggested PSU listed.

The RTX 5070 has a TDP of 250 W, while the N1X 48SM's TDP is unknown. The RTX 5070 uses GDDR7 memory with a 192-bit bus, while the N1X 48SM uses LPDDR5X with a 256-bit bus. Memory capacity differs dramatically: 12 GB versus 128 GB. Bandwidth favors the RTX 5070 at 672.0 GB/s versus 273.2 GB/s for the N1X 48SM.

Clock speeds differ, with the RTX 5070 running at 2325 MHz base and 2512 MHz boost, while the N1X 48SM runs at 741 MHz base and 2346 MHz boost. The RTX 5070 achieves 30.87 TFLOPS FP32 and FP16 (1:1), while the N1X 48SM achieves 28.83 TFLOPS in both. Pixel rate favors the RTX 5070 at 201.0 GPixel/s versus 112.6 GPixel/s, while texture rate favors the N1X 48SM at 900.9 GTexel/s versus 482.3 GTexel/s.

The RTX 5070 offers display outputs of 1x HDMI 2.1b and 3x DisplayPort 2.1b, while the N1X 48SM lists only 1x HDMI. The RTX 5070 supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the N1X 48SM lists N/A for all. Release dates differ, with the RTX 5070 released on 2025-03-03 and the N1X 48SM on 2026-05-31. The RTX 5070 has a predecessor in GeForce 40 and a successor in GeForce 60, while the N1X 48SM has neither.

The RTX 5070 has a transistor count of 31,100 million and a die size of 263 mm², while the N1X 48SM has an unknown transistor count and a die size of 382 mm². Both use a PCIe 5.0 x16 bus interface. The RTX 5070 is in active production, as is the N1X 48SM.

FAQ

Q: Which processor has a higher boost clock?

A: The RTX 5070 has a boost clock of 2512 MHz, while the N1X 48SM has a boost clock of 2346 MHz.

Q: What is the memory capacity difference between the two?

A: The RTX 5070 has 12 GB of GDDR7 memory, while the N1X 48SM has 128 GB of LPDDR5X memory.

Q: Which processor has a higher memory bandwidth?

A: The RTX 5070 has a memory bandwidth of 672.0 GB/s, which is more than double the N1X 48SM's 273.2 GB/s.

Q: Does the N1X 48SM have any benchmark scores?

A: No, the N1X 48SM has no benchmark entries in the database, while the RTX 5070 has a full set of scores across 3DMark, Geekbench, and Passmark tests.

Q: What is the FP32 performance of each processor?

A: The RTX 5070 delivers 30.87 TFLOPS FP32, while the N1X 48SM delivers 28.83 TFLOPS FP32.

Q: What API support does each processor list?

A: The RTX 5070 lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists N/A for DirectX, OpenGL, and Vulkan.