NVIDIA GeForce RTX 5070 vs NVIDIA N1X 40SM Comparison

Head-to-Head Benchmarks

The recorded data shows a clear separation between these two NVIDIA parts, but the comparison is complicated by the fact that the N1X 40SM has no individual benchmark entries in the database. The RTX 5070 carries an average benchmark score of 40377, placing it in the 82nd percentile of all GPUs tracked. The N1X 40SM, by contrast, has an average benchmark score of 0 and sits at the 50th percentile, indicating that no direct measurement data exists for it yet. This makes a traditional head-to-head score comparison impossible; instead, the analysis must rely on the architectural and specification differences recorded for each part.

What the database does show is where the RTX 5070 stands relative to its nearest rivals. Its average score of 40377 is 0.1% ahead of the AMD Radeon Pro 580 (40318), 0.8% ahead of the AMD Radeon Pro WX 7100 (40063), and 2% ahead of the NVIDIA RTX A500 Mobile (39568). It trails the AMD Radeon Pro 5300 by 1.2% (40870). These deltas are small, indicating that the RTX 5070 sits in a tightly clustered performance band among these workstation and mobile parts. The N1X 40SM has no nearest rivals listed, so no such comparative deltas can be drawn for it.

The RTX 5070’s individual benchmark results show a wide spread across different test suites. In 3DMark Steel Nomad DX12, it scores 5077. Geekbench OpenCL returns 172660, while Geekbench Vulkan is slightly higher at 178923. Passmark results vary by API: DirectX 9 scores 320, DirectX 10 scores 180, DirectX 11 scores 277, and DirectX 12 scores 108. The Passmark G2D score is 1305, while the G3D score is 29137. Compute performance via Passmark GPU Compute is 15787. These figures indicate that the RTX 5070’s relative strength shifts depending on the workload, with Vulkan and OpenCL showing higher absolute numbers than the DirectX Passmark tests.

Because the N1X 40SM lacks any benchmark records, the database cannot confirm any wins for either part in a direct test. The wins counter in the database is 0 for both items. The analysis therefore shifts to what the specification sheet reveals about expected behavior, rather than measured outcomes.

Architecture Differences

Both GPUs share the same Blackwell 2.0 architecture and are fabricated on a 5 nm process at TSMC. That is where the commonality ends. The RTX 5070 uses the GB205 chip, while the N1X 40SM uses the GB20B chip. The die sizes differ substantially: the RTX 5070 measures 263 mm², while the N1X 40SM is larger at 382 mm². Transistor counts are only recorded for the RTX 5070, at 31,100 million, giving it a transistor density of 118.3M per mm². The N1X 40SM’s transistor count is listed as unknown.

Clock behavior diverges sharply. The RTX 5070 has a base clock of 2325 MHz and a boost clock of 2512 MHz. The N1X 40SM has a much lower base clock of 741 MHz but a boost clock of 2346 MHz, close to the RTX 5070’s boost figure. Memory clocks also differ: the RTX 5070 runs at 1750 MHz (28 Gbps effective), while the N1X 40SM runs at 1067 MHz (8.5 Gbps effective).

The memory subsystems are built on completely different foundations. The RTX 5070 uses 12 GB of GDDR7 on a 192-bit bus, delivering 672.0 GB/s of bandwidth. The N1X 40SM uses 128 GB of LPDDR5X on a 256-bit bus, but its bandwidth is only 273.2 GB/s, less than half of the RTX 5070’s. This is a notable inversion: the N1X 40SM has more than ten times the memory capacity but less than half the bandwidth.

Compute resources also differ. The RTX 5070 has 6144 shading units, 192 texture mapping units, and 80 ROPs. The N1X 40SM has 5120 shading units, 320 TMUs, and 40 ROPs. The RTX 5070 has more shading units and double the ROPs, while the N1X 40SM has more TMUs. Ray tracing cores favor the RTX 5070 at 48 versus 40, and tensor cores also favor the RTX 5070 at 192 versus 160.

Rates reflect these configurations. The RTX 5070 achieves a pixel rate of 201.0 GPixel/s and a texture rate of 482.3 GTexel/s. The N1X 40SM achieves a pixel rate of 93.84 GPixel/s, less than half, but a texture rate of 750.7 GTexel/s, which is higher. FP32 compute is 30.87 TFLOPS for the RTX 5070 and 24.02 TFLOPS for the N1X 40SM, with FP16 running at a 1:1 ratio for both.

Form factor and power delivery are also distinct. The RTX 5070 is a dual-slot card with a 250 W TDP and a single 16-pin power connector, requiring a 600 W suggested PSU. The N1X 40SM is an integrated graphics processor (IGP) with no power connectors and an unknown TDP. The RTX 5070 has physical dimensions of 245 mm in length, 115 mm in height, and 40 mm in width. The N1X 40SM has no recorded dimensions.

API support differs as well. The RTX 5070 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists N/A for DirectX, OpenGL, and Vulkan. Display outputs are minimal on the N1X 40SM, with only a single HDMI port, while the RTX 5070 offers one HDMI 2.1b and three DisplayPort 2.1b outputs. Both use a PCIe 5.0 x16 bus interface.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The RTX 5070 delivers 30.87 TFLOPS of FP32 compute, while the N1X 40SM delivers 24.02 TFLOPS. The RTX 5070 is ahead by roughly 28.5% in this metric.

Q: How do the memory configurations compare?

A: The RTX 5070 uses 12 GB of GDDR7 on a 192-bit bus with 672.0 GB/s bandwidth. The N1X 40SM uses 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The N1X 40SM has far more capacity, but the RTX 5070 has far more bandwidth.

Q: Are both GPUs built on the same architecture and process?

A: Yes. Both are Blackwell 2.0 architecture and both are fabricated on a 5 nm process at TSMC. The chips differ: GB205 for the RTX 5070 and GB20B for the N1X 40SM.

Q: What is the physical form factor of each GPU?

A: The RTX 5070 is a dual-slot card measuring 245 mm by 115 mm by 40 mm, with a 250 W TDP and one 16-pin power connector. The N1X 40SM is an integrated graphics processor with no dimensions recorded, no power connectors, and an unknown TDP.

Q: Which GPU has more ray tracing and tensor cores?

A: The RTX 5070 has 48 ray tracing cores and 192 tensor cores. The N1X 40SM has 40 ray tracing cores and 160 tensor cores. The RTX 5070 leads in both categories.

Q: Do both GPUs support the same graphics APIs?

A: No. The RTX 5070 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists N/A for all three APIs.

The Verdict

The database paints two very different pictures. The RTX 5070 is a fully measured, actively produced discrete graphics card with a substantial benchmark record. Its average score of 40377 places it at the 82nd percentile of all GPUs, and its nearest rival comparisons show it clustered within 2% of several AMD and NVIDIA workstation parts. It offers high bandwidth GDDR7 memory, a compact dual-slot design, and full API support.

The N1X 40SM is an integrated GPU with no benchmark data, no API support listed, and no nearest rivals. It has a larger die (382 mm² versus 263 mm²), more texture units (320 versus 192), and vastly more memory capacity (128 GB versus 12 GB), but its bandwidth is less than half, its pixel rate is less than half, and its FP32 compute is about 22% lower. Its form factor as an IGP with no power connectors suggests a very different deployment scenario, likely embedded or mobile, rather than a discrete add-in board.

For users seeking a discrete graphics card with measured performance, the RTX 5070 is the only option with recorded data. For scenarios requiring very large memory capacity in an integrated form factor, the N1X 40SM offers specifications that the RTX 5070 cannot match, specifically the 128 GB of LPDDR5X and the higher texture rate. The choice depends entirely on whether the workload prioritizes measured compute and bandwidth, which favors the RTX 5070, or memory capacity and integration, which favors the N1X 40SM.

Specification Differences

The following fields differ between the two parts, based only on recorded data:

• Chip: GB205 (RTX 5070) versus GB20B (N1X 40SM)
• Generation: GeForce 50 (RTX 5070) versus Blackwell IGP (N1x) (N1X 40SM)
• Die size: 263 mm² (RTX 5070) versus 382 mm² (N1X 40SM)
• Transistors: 31,100 million (RTX 5070) versus unknown (N1X 40SM)
• Transistor density: 118.3M / mm² (RTX 5070) versus not recorded (N1X 40SM)
• Base clock: 2325 MHz (RTX 5070) versus 741 MHz (N1X 40SM)
• Boost clock: 2512 MHz (RTX 5070) versus 2346 MHz (N1X 40SM)
• Memory clock: 1750 MHz, 28 Gbps effective (RTX 5070) versus 1067 MHz, 8.5 Gbps effective (N1X 40SM)
• Memory size: 12 GB (RTX 5070) versus 128 GB (N1X 40SM)
• Memory type: GDDR7 (RTX 5070) versus LPDDR5X (N1X 40SM)
• Memory bus width: 192 bit (RTX 5070) versus 256 bit (N1X 40SM)
• Memory bandwidth: 672.0 GB/s (RTX 5070) versus 273.2 GB/s (N1X 40SM)
• Shading units: 6144 (RTX 5070) versus 5120 (N1X 40SM)
• TMUs: 192 (RTX 5070) versus 320 (N1X 40SM)
• ROPs: 80 (RTX 5070) versus 40 (N1X 40SM)
• RT cores: 48 (RTX 5070) versus 40 (N1X 40SM)
• Tensor cores: 192 (RTX 5070) versus 160 (N1X 40SM)
• Pixel rate: 201.0 GPixel/s (RTX 5070) versus 93.84 GPixel/s (N1X 40SM)
• Texture rate: 482.3 GTexel/s (RTX 5070) versus 750.7 GTexel/s (N1X 40SM)
• FP32 compute: 30.87 TFLOPS (RTX 5070) versus 24.02 TFLOPS (N1X 40SM)
• FP16 compute: 30.87 TFLOPS (RTX 5070) versus 24.02 TFLOPS (N1X 40SM)
• TDP: 250 W (RTX 5070) versus unknown (N1X 40SM)
• Slot width: Dual-slot (RTX 5070) versus IGP (N1X 40SM)
• Power connectors: 1x 16-pin (RTX 5070) versus None (N1X 40SM)
• Suggested PSU: 600 W (RTX 5070) versus not recorded (N1X 40SM)
• Display outputs: 1x HDMI 2.1b, 3x DisplayPort 2.1b (RTX 5070) versus 1x HDMI (N1X 40SM)
• DirectX support: 12 Ultimate (12_2) (RTX 5070) versus N/A (N1X 40SM)
• OpenGL support: 4.6 (RTX 5070) versus N/A (N1X 40SM)
• Vulkan support: 1.4 (RTX 5070) versus N/A (N1X 40SM)
• Dimensions: 245 mm x 115 mm x 40 mm (RTX 5070) versus not recorded (N1X 40SM)
• Release date: 2025-03-03 (RTX 5070) versus 2026-05-31 (N1X 40SM)
• Launch MSRP: 549 USD (RTX 5070) versus not recorded (N1X 40SM)
• Predecessor: GeForce 40 (RTX 5070) versus not recorded (N1X 40SM)
• Successor: GeForce 60 (RTX 5070) versus not recorded (N1X 40SM)
• Average benchmark score: 40377 (RTX 5070) versus 0 (N1X 40SM)
• Percentile vs all GPUs: 82 (RTX 5070) versus 50 (N1X 40SM)