AMD Radeon RX 7700 XT vs NVIDIA N1X 48SM Comparison

Where Each One Wins

The data presents an unusual comparison: the AMD Radeon RX 7700 XT is a fully benchmarked discrete desktop GPU, while the NVIDIA N1X 48SM is an integrated graphics processor with no recorded benchmark scores in the database. Consequently, the RX 7700 XT holds every measurable advantage where performance data exists. The RX 7700 XT has an average benchmark score of 22549, placing it in the 67th percentile of all GPUs, whereas the N1X 48SM sits at the 50th percentile with an average score of 0 due to the absence of test results.

Where the N1X 48SM wins is in raw resource allocation that does not require benchmark validation. It carries 6144 shading units, 384 texture mapping units, and 192 tensor cores, all of which exceed the RX 7700 XT's 3456 shading units, 216 TMUs, and no tensor cores. The N1X 48SM also integrates 128 GB of LPDDR5X memory on a 256-bit bus, versus 12 GB of GDDR6 on a 192-bit bus for the RX 7700 XT. For workloads that depend on memory capacity rather than raw throughput, the N1X 48SM is the clear choice, provided software can access its unified memory pool.

The RX 7700 XT wins in every performance metric recorded: pixel rate (244.2 GPixel/s versus 112.6 GPixel/s), texture rate (549.5 GTexel/s versus 900.9 GTexel/s, actually the N1X is higher here), FP32 throughput (35.17 TFLOPS versus 28.83 TFLOPS), and memory bandwidth (432.0 GB/s versus 273.2 GB/s). The N1X 48SM's texture rate of 900.9 GTexel/s is its single numerical victory over the RX 7700 XT's 549.5 GTexel/s, a 64% advantage driven by its higher TMU count.

Architecture Differences

The two processors come from different architectural lineages. The RX 7700 XT uses the Navi 32 chip built on RDNA 3.0, codenamed Wheat Nas, part of the Navi III (RX 7000) generation. The N1X 48SM uses the GB20B chip on Blackwell 2.0, classified as Blackwell IGP (N1x) generation. Both are fabricated on a 5 nm process at TSMC, so the manufacturing node is identical.

The RX 7700 XT has 28,100 million transistors on a 346 mm² die, giving a transistor density of 81.2M per mm². The N1X 48SM's transistor count is unknown, but its die size is 382 mm², which is 10% larger than the RX 7700 XT's die. The N1X 48SM is an integrated graphics processor (IGP) with no slot width, no power connectors, and no suggested PSU rating, whereas the RX 7700 XT is a dual-slot card requiring two 8-pin connectors and a 550 W suggested PSU.

Clock behavior differs substantially. The RX 7700 XT runs at a 1435 MHz base clock with a 2544 MHz boost and a 2171 MHz game clock. The N1X 48SM has a much lower 741 MHz base clock but a closer 2346 MHz boost clock. Memory clocks also diverge: the RX 7700 XT uses 2250 MHz (18 Gbps effective) GDDR6, while the N1X 48SM uses 1067 MHz (8.5 Gbps effective) LPDDR5X. The N1X 48SM's lower clock speed is partially offset by its wider 256-bit memory bus versus the RX 7700 XT's 192-bit bus.

API support separates them sharply. The RX 7700 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists DirectX, OpenGL, and Vulkan as N/A, indicating it is not designed for the same software ecosystem. Display outputs also differ: the RX 7700 XT provides 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C, while the N1X 48SM offers only 1x HDMI.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The RX 7700 XT delivers 35.17 TFLOPS FP32 and FP16 (1:1), while the N1X 48SM delivers 28.83 TFLOPS FP32 and FP16 (1:1). The RX 7700 XT leads by roughly 22% in both precision formats.

Q: Can the N1X 48SM run standard graphics APIs?

A: The database lists DirectX, OpenGL, and Vulkan support as N/A for the N1X 48SM. The RX 7700 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, meaning the RX 7700 XT is the only one of the two with verified compatibility for conventional gaming and graphics workloads.

Q: How do memory capacities compare?

A: The N1X 48SM has 128 GB of LPDDR5X memory on a 256-bit bus, while the RX 7700 XT has 12 GB of GDDR6 on a 192-bit bus. The N1X 48SM offers over ten times the capacity, but the RX 7700 XT provides higher bandwidth at 432.0 GB/s versus 273.2 GB/s.

Q: What is the release timeline for each product?

A: The RX 7700 XT was released on September 5, 2023, and is currently Active in production. The N1X 48SM has a release date of May 31, 2026, and is also listed as Active.

Q: Which GPU has more ray tracing hardware?

A: The RX 7700 XT has 54 ray tracing cores, while the N1X 48SM has 48 ray tracing cores. The RX 7700 XT leads by 6 cores, a 12.5% advantage.

Q: How do the pixel and texture rates compare?

A: The RX 7700 XT achieves 244.2 GPixel/s, more than double the N1X 48SM's 112.6 GPixel/s. In texture rate, the N1X 48SM wins with 900.9 GTexel/s versus 549.5 GTexel/s for the RX 7700 XT, a 64% lead.

Specification Differences

| Specification | AMD Radeon RX 7700 XT | NVIDIA N1X 48SM |

|---|---|---|

| Architecture | RDNA 3.0 | Blackwell 2.0 |

| Chip | Navi 32 | GB20B |

| Process Node | 5 nm | 5 nm |

| Die Size | 346 mm² | 382 mm² |

| Transistors | 28,100 million | unknown |

| Base Clock | 1435 MHz | 741 MHz |

| Boost Clock | 2544 MHz | 2346 MHz |

| Game Clock | 2171 MHz | null |

| Memory Size | 12 GB | 128 GB |

| Memory Type | GDDR6 | LPDDR5X |

| Memory Bus Width | 192 bit | 256 bit |

| Memory Bandwidth | 432.0 GB/s | 273.2 GB/s |

| Shading Units | 3456 | 6144 |

| TMUs | 216 | 384 |

| ROPs | 96 | 48 |

| RT Cores | 54 | 48 |

| Tensor Cores | null | 192 |

| Pixel Rate | 244.2 GPixel/s | 112.6 GPixel/s |

| Texture Rate | 549.5 GTexel/s | 900.9 GTexel/s |

| FP32 | 35.17 TFLOPS | 28.83 TFLOPS |

| FP16 | 35.17 TFLOPS (1:1) | 28.83 TFLOPS (1:1) |

| TDP | 245 W | unknown |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 2x 8-pin | None |

| Suggested PSU | 550 W | null |

| Bus Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |

| Display Outputs | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C | 1x HDMI |

| DirectX | 12 Ultimate (12_2) | N/A |

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Release Date | 2023-09-05 | 2026-05-31 |

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for these two products, and the N1X 48SM has an empty benchmark list. The RX 7700 XT, however, has ten recorded benchmark scores that define its performance envelope.

In 3DMark Steel Nomad DX12, the RX 7700 XT scores 3316. Its Geekbench OpenCL score is 138383, while its Geekbench Vulkan score is 46443. Passmark results show DirectX 10 at 119, DirectX 11 at 232, DirectX 12 at 79, and DirectX 9 at 294. The Passmark G2D score is 1161, G3D is 22547, and GPU Compute is 12912.

The RX 7700 XT's average benchmark score of 22549 places it in the 67th percentile of all GPUs. Its nearest rivals in the database are the NVIDIA GeForce RTX 5060 Mobile (avg score 22435, delta 0.5%), the NVIDIA GeForce RTX 4060 Mobile (avg score 22729, delta -0.8%), the NVIDIA GeForce RTX 2080 (avg score 22895, delta -1.5%), and the AMD Radeon RX 5700 (avg score 22170, delta 1.7%). These deltas show the RX 7700 XT sits within 1.5% of the RTX 2080 and RTX 4060 Mobile, and within 0.5% of the RTX 5060 Mobile, indicating its performance cluster is tightly grouped with those products.

The N1X 48SM has no benchmark scores, no average score, and no nearest rivals. Its percentile rank of 50 is a default value rather than a measured result, since the average score is 0.

The Verdict

The RX 7700 XT is the only option with measurable gaming and compute performance. Its 35.17 TFLOPS FP32, 432.0 GB/s memory bandwidth, and 244.2 GPixel/s pixel rate provide concrete capabilities, and its benchmark scores confirm it operates in the same performance class as the RTX 2080 and RTX 4060 Mobile, with deltas under 1.5%. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it compatible with standard PC software.

The N1X 48SM is a different kind of product entirely. As an IGP with no power connectors, no TDP listed, and no API support, it is not positioned for conventional graphics workloads. Its strengths are memory capacity (128 GB), shading unit count (6144), TMU count (384), and tensor core count (192). Its texture rate of 900.9 GTexel/s is the single performance metric where it beats the RX 7700 XT.

For any user running existing graphics applications, games, or compute workloads that rely on DirectX, OpenGL, or Vulkan, the RX 7700 XT is the only viable choice. For workloads that can leverage the N1X 48SM's massive memory pool and tensor cores, and that do not require standard graphics APIs, the N1X 48SM offers resources the RX 7700 XT cannot match. The RX 7700 XT's launch MSRP was 449 USD. The data does not support any other conclusion: the RX 7700 XT is the benchmarked performer, the N1X 48SM is a specialized integrated processor with unverified performance.