AMD Radeon PRO W7900 vs NVIDIA N1X 48SM Comparison

Head-to-Head Benchmarks

The database records no direct benchmark comparisons between the AMD Radeon PRO W7900 and the NVIDIA N1X 48SM. The head-to-head benchmark array is empty, and neither product registers a win in direct competition. This absence of comparative data stems from the fundamental difference in their positions: the Radeon PRO W7900 is a fully measured discrete workstation card with established scores, while the N1X 48SM is a newly listed integrated GPU with no recorded benchmark results.

The Radeon PRO W7900 posts an average benchmark score of 110,725 across its recorded tests. Its Geekbench OpenCL result reaches 84,379, while the Vulkan score climbs to 137,070. These figures place it in the 94th percentile against all GPUs in the database. The N1X 48SM, by contrast, holds a 50th percentile position with an average score of zero, reflecting the lack of any measured performance data.

Relative positioning comes from the Radeon PRO W7900's nearest rivals. It sits 1% above the AMD Radeon Pro Vega II (average score 109,617), 2.8% behind the NVIDIA RTX A5500 Mobile (average score 113,944), 3.2% ahead of the AMD Radeon Pro W6600X (average score 107,342), and 3.2% below the NVIDIA Tesla V100 SXM2 16 GB (average score 114,395). These narrow margins, all within roughly 3 percentage points, indicate the W7900 clusters tightly with its immediate competitors in aggregate performance.

Since the N1X 48SM has no entries in the head-to-head array, no wins can be assigned to either part. The data cannot substantiate any claim of superiority in direct testing. The only meaningful comparison available is architectural, which follows in the next section.

Architecture Differences

The two GPUs diverge sharply in their underlying designs. The AMD Radeon PRO W7900 uses the Navi 31 chip built on the RDNA 3.0 architecture with the Plum Bonito codename, part of the Radeon Pro Navi (Navi III Series) generation. The NVIDIA N1X 48SM uses the GB20B chip on the Blackwell 2.0 architecture, belonging to the Blackwell IGP (N1x) generation.

Both parts are fabricated on a 5 nm process at TSMC, though their physical characteristics differ considerably. The W7900's die measures 529 mm² and contains 57,700 million transistors, yielding a density of 109.1 million transistors per mm². The N1X 48SM has a smaller die at 382 mm², but its transistor count is listed as unknown, so no density figure is available.

Clock behavior shows a notable split. The W7900 runs at a 1760 MHz base clock with a 2495 MHz boost. The N1X 48SM operates at a much lower 741 MHz base but boosts to 2346 MHz, a substantial 1605 MHz rise between base and boost states. Memory clocks also differ: the W7900 uses 2250 MHz with 18 Gbps effective transfer, while the N1X 48SM runs at 1067 MHz with 8.5 Gbps effective.

Memory architecture creates the starkest contrast. The W7900 carries 48 GB of GDDR6 on a 384-bit bus, delivering 864.0 GB/s of bandwidth. The N1X 48SM ships with 128 GB of LPDDR5X on a 256-bit bus, but its bandwidth reaches only 273.2 GB/s. The W7900 provides more than three times the memory bandwidth despite having less than half the capacity.

Compute resources reveal both similarities and divergences. Both GPUs feature 6144 shading units and 384 texture mapping units. The W7900 has 192 ROPs, while the N1X 48SM has only 48. Ray tracing cores number 96 on the W7900 versus 48 on the N1X 48SM. Tensor cores appear only on the NVIDIA part, with 192 present; the AMD GPU lists none.

Rates derived from these resources show the W7900's advantage. Its pixel rate reaches 479.0 GPixel/s versus 112.6 GPixel/s for the N1X 48SM. Texture rates stand at 958.1 GTexel/s for AMD and 900.9 GTexel/s for NVIDIA, a narrower gap. Floating-point throughput: the W7900 delivers 61.32 TFLOPS in both FP32 and FP16 (1:1 ratio), while the N1X 48SM manages 28.83 TFLOPS in both formats.

Interface and connectivity differ as well. The W7900 uses PCIe 4.0 x16, while the N1X 48SM uses PCIe 5.0 x16. Display outputs: the AMD card provides three DisplayPort 2.1 connections plus one mini-DisplayPort 2.1; the NVIDIA part offers a single HDMI port. API support splits completely: the W7900 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the N1X 48SM records N/A for DirectX, OpenGL, and Vulkan.

Physical form factors separate the two fundamentally. The W7900 is a triple-slot card measuring 280 mm in length, 110 mm in height, and 51 mm in width, requiring two 8-pin power connectors and a 600 W suggested power supply. The N1X 48SM is an integrated graphics processor (IGP) with no slot width, no dimensions recorded, and no power connectors. Power consumption for the W7900 is rated at 295 W, while the N1X 48SM's TDP is unknown.

FAQ

Q: Which GPU has higher raw compute throughput?

A: The AMD Radeon PRO W7900 delivers 61.32 TFLOPS in both FP32 and FP16, exactly double the 28.83 TFLOPS the NVIDIA N1X 48SM achieves in both formats.

Q: How does memory capacity compare between the two?

A: The NVIDIA N1X 48SM carries 128 GB of LPDDR5X, which is 80 GB more than the 48 GB of GDDR6 on the AMD Radeon PRO W7900. However, the W7900's bandwidth of 864.0 GB/s is substantially higher than the N1X 48SM's 273.2 GB/s.

Q: Do both GPUs support the same graphics APIs?

A: No. The AMD Radeon PRO W7900 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA N1X 48SM records N/A for all three APIs in the database.

Q: What are the physical differences in form factor?

A: The AMD Radeon PRO W7900 is a triple-slot card measuring 280 mm by 110 mm by 51 mm with two 8-pin power connectors. The NVIDIA N1X 48SM is an integrated GPU with no slot width, no recorded dimensions, and no power connectors.

Q: Which GPU has more ray tracing cores?

A: The AMD Radeon PRO W7900 has 96 ray tracing cores, twice the 48 found on the NVIDIA N1X 48SM. The NVIDIA part compensates with 192 tensor cores, which the AMD card lacks entirely.

Q: How do the recorded benchmark scores compare?

A: The AMD Radeon PRO W7900 has an average benchmark score of 110,725 with Geekbench OpenCL at 84,379 and Vulkan at 137,070. The NVIDIA N1X 48SM has no benchmark results recorded, leaving its average score at zero.

Specification Differences

The following table lists only the fields where the two GPUs differ:

| Specification | AMD Radeon PRO W7900 | NVIDIA N1X 48SM |

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

| Chip | Navi 31 | GB20B |

| Architecture | RDNA 3.0 | Blackwell 2.0 |

| Codename | Plum Bonito | None |

| Generation | Radeon Pro Navi (Navi III Series) | Blackwell IGP (N1x) |

| Die Size | 529 mm² | 382 mm² |

| Transistors | 57,700 million | Unknown |

| Transistor Density | 109.1M / mm² | None |

| Base Clock | 1760 MHz | 741 MHz |

| Boost Clock | 2495 MHz | 2346 MHz |

| Memory Clock | 2250 MHz 18 Gbps effective | 1067 MHz 8.5 Gbps effective |

| Memory Size | 48 GB | 128 GB |

| Memory Type | GDDR6 | LPDDR5X |

| Memory Bus Width | 384 bit | 256 bit |

| Memory Bandwidth | 864.0 GB/s | 273.2 GB/s |

| ROPs | 192 | 48 |

| RT Cores | 96 | 48 |

| Tensor Cores | None | 192 |

| Pixel Rate | 479.0 GPixel/s | 112.6 GPixel/s |

| Texture Rate | 958.1 GTexel/s | 900.9 GTexel/s |

| FP32 | 61.32 TFLOPS | 28.83 TFLOPS |

| FP16 | 61.32 TFLOPS (1:1) | 28.83 TFLOPS (1:1) |

| TDP | 295 W | Unknown |

| Slot Width | Triple-slot | IGP |

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

| Suggested PSU | 600 W | None |

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

| Display Outputs | 3x DisplayPort 2.1, 1x mini-DisplayPort 2.1 | 1x HDMI |

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

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Dimensions | 280 mm x 110 mm x 51 mm | None |

| Release Date | 2023-05-25 | 2026-05-31 |

| Launch MSRP | 3,999 USD | None |

| Percentile vs All GPUs | 94 | 50 |

| Avg Benchmark Score | 110,725 | 0 |

Where Each One Wins

The AMD Radeon PRO W7900 wins across every measured performance domain. Its FP32 throughput of 61.32 TFLOPS is 112.6% higher than the N1X 48SM's 28.83 TFLOPS. Pixel rate favors AMD by a factor of 4.25, with 479.0 GPixel/s versus 112.6 GPixel/s. Texture rate gives the W7900 a 6.3% edge at 958.1 GTexel/s over 900.9 GTexel/s. Memory bandwidth is a decisive AMD advantage: 864.0 GB/s versus 273.2 GB/s, a 3.16x difference.

The NVIDIA N1X 48SM wins on memory capacity with 128 GB versus 48 GB, a 2.67x advantage. It also has 192 tensor cores where the AMD card has none, a meaningful feature for workloads that rely on tensor operations. The N1X 48SM integrates directly as an IGP, eliminating the need for discrete card installation, and uses the newer PCIe 5.0 x16 interface. Its 382 mm² die is smaller than the W7900's 529 mm², which may indicate lower manufacturing complexity, though transistor counts for the NVIDIA part remain unknown.

The W7900's 94th percentile standing among all GPUs, backed by an average benchmark score of 110,725, gives it a clear measured performance profile. The N1X 48SM's 50th percentile with zero benchmark results provides no comparable evidence of capability. The AMD part also offers full API support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part lists no API support.

The Verdict

The recorded data supports only one conclusion for measured performance: the AMD Radeon PRO W7900 is the superior GPU by every benchmarked metric. Its 61.32 TFLOPS FP32 throughput doubles the N1X 48SM's 28.83 TFLOPS. Its pixel rate of 479.0 GPixel/s outpaces the NVIDIA part by more than four times. Memory bandwidth of 864.0 GB/s triples the N1X 48SM's 273.2 GB/s. The W7900 holds a 94th percentile rank with an average score of 110,725, while the N1X 48SM has no recorded scores at all.

The N1X 48SM's advantages are architectural rather than performance-based. Its 128 GB memory capacity exceeds the W7900's 48 GB, which suits workloads requiring extremely large datasets resident in memory. Its 192 tensor cores provide hardware support that the AMD card lacks entirely. Its IGP form factor means no power connectors, no expansion slot requirement, and no separate card dimensions, fitting systems where discrete installation is impossible.

For users who need measured workstation performance, documented API support, and established benchmark results, the Radeon PRO W7900 is the only choice with data to support it. The database shows a launch MSRP of 3,999 USD for the W7900, while the N1X 48SM has no listed price. For users who require 128 GB of memory capacity and tensor core functionality in an integrated package, the N1X 48SM offers those specific capabilities, though no performance measurements exist to validate its real-world behavior. The verdict from the data is clear: the W7900 wins on every recorded benchmark, while the N1X 48SM wins only on capacity, tensor features, and integration form factor.