NVIDIA GeForce RTX 4070 AD103 vs NVIDIA N1 20SM Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark results between the NVIDIA GeForce RTX 4070 AD103 and the NVIDIA N1 20SM. Both entries carry an average benchmark score of 0 and zero wins in the database. The percentile ranking for both GPUs sits at 50, indicating they occupy the median position across all recorded graphics processors. Without measured frame rates, compute scores, or synthetic test results, the comparison must rely entirely on architectural specifications and recorded performance ceilings.

The RTX 4070 AD103 delivers 29.15 TFLOPS of FP32 compute, while the N1 20SM reaches 12.01 TFLOPS. That places the desktop card at roughly 2.4 times the raw single-precision throughput of the integrated processor. Texture rate follows a similar pattern: 455.4 GTexel/s for the AD103 versus 375.4 GTexel/s for the N1 20SM, a 21% advantage for the discrete card. Pixel throughput diverges more sharply, with the RTX 4070 producing 158.4 GPixel/s against the N1's 56.30 GPixel/s, a 2.8x gap that reflects the 64 ROPs on the AD103 compared to just 24 on the N1.

Memory bandwidth tells a different story. The RTX 4070 AD103 uses 12 GB of GDDR6X across a 192-bit bus, achieving 504.2 GB/s. The N1 20SM pairs 128 GB of LPDDR5X with a 256-bit interface, but bandwidth reaches only 273.2 GB/s. The desktop card holds a 1.85x bandwidth advantage despite the narrower bus, a result of much faster memory clocks: 1313 MHz (21 Gbps effective) versus 1067 MHz (8.5 Gbps effective). Capacity favors the N1 overwhelmingly, 128 GB versus 12 GB, a 10.7x difference that no other specification can offset.

Clock speeds show the AD103 operating at a 1920 MHz base and 2475 MHz boost. The N1 20SM starts at 741 MHz base and boosts to 2346 MHz. The boost clocks sit close, within 5.5%, but the base clock gap is substantial. The RTX 4070 runs its base frequency 2.6x higher than the N1's base, which matters for sustained workloads that do not reach boost states.

Shader resources favor the discrete GPU. The AD103 carries 5888 shading units, 184 TMUs, 46 RT cores, and 184 tensor cores. The N1 20SM has 2560 shading units, 160 TMUs, 20 RT cores, and 80 tensor cores. The AD103 leads in shading units by 2.3x, RT cores by 2.3x, and tensor cores by 2.3x, while the TMU gap narrows to 1.15x.

The Verdict

The data supports a clear split based on workload orientation. The RTX 4070 AD103 is the stronger compute and graphics device. Every throughput metric, FP32, texture fill, pixel fill, and shading unit count, favors it by margins ranging from 1.15x to 2.8x. The 200 W TDP, dual-slot cooler, and 1x 16-pin power connector indicate a dedicated graphics solution designed for sustained rendering and compute workloads. Its 12 GB GDDR6X frame buffer with 504.2 GB/s bandwidth suits high-resolution gaming and GPU-accelerated tasks where latency and bandwidth matter more than capacity.

The N1 20SM is an integrated graphics processor (IGP) with no power connector and no TDP listed. It relies on shared system memory, 128 GB of LPDDR5X, which provides 10.7x the capacity of the RTX 4070 but less than half the bandwidth. This configuration targets workloads that need massive memory residency, such as large dataset processing, AI inference with big model footprints, or multi-application virtualization, where the GPU must hold entire working sets in memory. The N1's PCIe 5.0 x16 interface and Blackwell 2.0 architecture indicate a newer design, but the API list shows no DirectX, OpenGL, or Vulkan support, which restricts it to compute or proprietary stacks rather than conventional graphics rendering.

The RTX 4070 AD103 is the choice for rasterization, ray tracing, and general-purpose FP32 compute. The N1 20SM is the choice for memory-bound workloads that exceed 12 GB per process. Neither part wins across all categories, and the database records zero direct benchmark wins for either, so the verdict rests on specification deltas. The RTX 4070 leads in 7 of 9 performance-relevant metrics; the N1 leads in memory capacity and bus width.

Architecture Differences

The two GPUs come from different NVIDIA generations and architectures. The RTX 4070 AD103 uses the Ada Lovelace architecture on the AD103 chip, part of the GeForce 40 series. The N1 20SM uses the Blackwell 2.0 architecture on the GB20B chip, classified under the Blackwell IGP (N1x) generation. Both are fabricated on a 5 nm process at TSMC, so the node generation matches, but the design philosophies diverge.

The AD103 die measures 379 mm² with 45,900 million transistors, yielding a density of 121.1M transistors per mm². The GB20B die is slightly larger at 382 mm², but the transistor count is listed as unknown, so no density figure exists. The similar die size with fewer functional units on the N1 (2560 shading units versus 5888) suggests the GB20B allocates area to the memory controller, LPDDR5X interface, or other non-rendering logic. The 256-bit memory bus on the N1 versus the 192-bit bus on the AD103 supports that interpretation.

Memory architecture differs fundamentally. The AD103 uses discrete GDDR6X modules soldered to the board, 12 GB total, with a 504.2 GB/s bandwidth ceiling. The N1 integrates LPDDR5X, 128 GB, shared with the host system over a 256-bit path. The N1's memory clocks at 1067 MHz (8.5 Gbps effective), far below the AD103's 1313 MHz (21 Gbps effective). Effective bandwidth per pin favors the AD103 by a wide margin, but the N1's wider bus and larger capacity define a different memory hierarchy.

Compute resources scale with the architectures. The AD103 operates 184 tensor cores and 46 RT cores, both 2.3x the N1's 80 tensor cores and 20 RT cores. Pixel rate and texture rate deltas follow the ROP and TMU counts: 64 ROPs and 184 TMUs on the AD103 versus 24 ROPs and 160 TMUs on the N1. The API support reinforces the positioning. The AD103 lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, full graphics APIs for consumer and professional rendering. The N1 lists N/A for all three, which means it does not expose conventional graphics APIs and likely operates through compute or vendor-specific interfaces.

Physical design separates the two completely. The AD103 is a dual-slot, 240 mm long, 110 mm tall, 40 mm wide card with a 16-pin power connector and a 550 W suggested PSU. The N1 is an IGP with no dimensions, no power connector, and no PSU recommendation. The AD103 uses PCIe 4.0 x16; the N1 uses PCIe 5.0 x16. Display outputs also differ: the AD103 provides 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the N1 lists only a single HDMI output.

FAQ

Q: Which GPU has higher FP32 compute throughput?

A: The RTX 4070 AD103 records 29.15 TFLOPS, which is 2.4x the N1 20SM's 12.01 TFLOPS.

Q: How much memory does each GPU have?

A: The RTX 4070 AD103 has 12 GB of GDDR6X, while the N1 20SM has 128 GB of LPDDR5X, a 10.7x capacity difference.

Q: Which GPU offers higher memory bandwidth?

A: The RTX 4070 AD103 reaches 504.2 GB/s, compared to 273.2 GB/s for the N1 20SM, despite the N1 having a wider 256-bit bus.

Q: What is the process node for both GPUs?

A: Both the AD103 and GB20B chips are fabricated on a 5 nm process at TSMC.

Q: Does the N1 20SM support standard graphics APIs?

A: The N1 20SM lists DirectX, OpenGL, and Vulkan as N/A, while the RTX 4070 AD103 supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Q: What are the release dates for the two products?

A: The RTX 4070 AD103 was released on 2024-02-29 and is end-of-life, while the N1 20SM has a release date of 2026-05-31 and is listed as active.

Where Each One Wins

The RTX 4070 AD103 wins in raw rendering throughput. Its 29.15 TFLOPS FP32, 455.4 GTexel/s texture rate, and 158.4 GPixel/s pixel rate place it firmly ahead for any workload that saturates shader, texture, or ROP units. The 64 ROPs and 184 TMUs give it 2.8x and 1.15x margins respectively over the N1's 24 ROPs and 160 TMUs. The 504.2 GB/s bandwidth, while less than the N1's capacity, is more than enough for 12 GB frame buffers in gaming and rendering contexts. The dual-slot cooler and 200 W TDP indicate it can sustain these rates under load. DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support make it the only one of the two with conventional graphics API compatibility.

The N1 20SM wins in memory capacity and system integration. Its 128 GB LPDDR5X pool is 10.7x larger than the AD103's 12 GB, which matters for workloads that must keep entire datasets resident on the GPU. The 256-bit bus, while delivering only 273.2 GB/s, is still sufficient for bulk data movement at lower clock rates. The PCIe 5.0 x16 interface offers double the per-lane bandwidth of the AD103's PCIe 4.0 x16, which benefits host-to-device transfers. The IGP form factor with no power connector and no PSU requirement suits embedded, server, or mobile contexts where discrete cards cannot fit. The 2346 MHz boost clock, close to the AD103's 2475 MHz, shows the N1 can reach competitive peak frequencies despite its lower base.

The database shows zero benchmark wins for either GPU, so the division rests on specification analysis. The RTX 4070 AD103 wins every throughput category: FP32, texture, pixel, shading units, RT cores, tensor cores, and memory bandwidth. The N1 20SM wins memory capacity, bus width, PCIe generation, and physical footprint. For graphics rendering, ray tracing, or compute with small working sets, the AD103 is the superior part. For memory-resident workloads, large model inference, or systems without discrete card slots, the N1's 128 GB capacity and IGP design define its advantage. The 5 nm process node is shared, but the architectures, Ada Lovelace versus Blackwell 2.0, target different application domains entirely.