AMD Radeon PRO W7700 vs NVIDIA N1X 48SM Comparison

The Verdict

The data presents two fundamentally different products. The AMD Radeon PRO W7700 is a dedicated workstation GPU with recorded benchmark scores, while the NVIDIA N1X 48SM is an integrated graphics processor (IGP) with no recorded benchmarks in the database. The W7700 achieves an average benchmark score of 118976 and sits at the 95th percentile among all GPUs. The N1X 48SM has an average score of 0 and sits at the 50th percentile, which reflects the absence of measured data rather than actual performance parity.

For users requiring a proven, high-throughput workstation accelerator, the Radeon PRO W7700 is the only choice supported by measurements. Its Geekbench OpenCL score of 108245 and Vulkan score of 129706 demonstrate real, quantifiable capability. The N1X 48SM, by contrast, offers no benchmark results, so any performance assessment must remain qualitative. The N1X 48SM does provide 128 GB of LPDDR5X memory, which is 8 times the capacity of the W7700, but the W7700 delivers more than double the memory bandwidth at 576.0 GB/s versus 273.2 GB/s.

Architecture Differences

The two GPUs come from different manufacturers and architectures. The AMD Radeon PRO W7700 uses the Navi 32 chip built on RDNA 3.0 architecture, with the codename Wheat Nas. It belongs to the Radeon Pro Navi generation (Navi III Series). The NVIDIA N1X 48SM uses the GB20B chip built on Blackwell 2.0 architecture and belongs to the Blackwell IGP generation.

Both are manufactured by TSMC on a 5 nm process. The W7700 uses 28,100 million transistors on a 346 mm² die, giving a transistor density of 81.2 million per mm². The N1X 48SM has an unknown transistor count on a 382 mm² die. The die size difference is modest, with the NVIDIA chip being approximately 10% larger in area.

Clock behavior differs substantially. The W7700 runs at a base clock of 1900 MHz and boosts to 2600 MHz. The N1X 48SM operates at a much lower base clock of 741 MHz but boosts to 2346 MHz. The memory clocks also differ: the W7700 uses 2250 MHz with 18 Gbps effective, while the N1X 48SM runs at 1067 MHz with 8.5 Gbps effective.

The compute architectures diverge significantly. The W7700 has 3072 shading units, 192 texture mapping units, 96 render output units, and 48 ray tracing cores. The N1X 48SM has 6144 shading units, 384 texture mapping units, but only 48 render output units, also with 48 ray tracing cores. The N1X 48SM additionally includes 192 tensor cores, while the W7700 has no tensor cores listed. The N1X 48SM doubles the shading units and TMUs, but has half the ROPs.

Memory subsystems differ in type and capacity. The W7700 uses 16 GB of GDDR6 on a 256-bit bus, achieving 576.0 GB/s bandwidth. The N1X 48SM uses 128 GB of LPDDR5X on a 256-bit bus, but achieves only 273.2 GB/s bandwidth. The W7700 also supports PCIe 4.0 x16, while the N1X 48SM supports PCIe 5.0 x16.

Form factor and power delivery are completely different. The W7700 is a dual-slot card with a 1x 8-pin power connector, a 190 W TDP, and a suggested PSU of 450 W. The N1X 48SM is an IGP with no power connectors and an unknown TDP. The W7700 measures 241 mm in length and 111 mm in height. Display outputs also differ: the W7700 provides 4x DisplayPort 2.1, while the N1X 48SM provides 1x HDMI.

API support is another major distinction. The W7700 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists N/A for DirectX, OpenGL, and Vulkan, indicating it may not be intended for traditional graphics workloads in the same manner.

Where Each One Wins

Based on measured data, the Radeon PRO W7700 wins in all benchmark categories. Its Geekbench OpenCL score of 108245 and Geekbench Vulkan score of 129706 establish clear performance baselines. The average benchmark score of 118976 places it at the 95th percentile among all GPUs, meaning it outperforms 95% of the database entries.

The W7700 also wins in pixel fill rate with 249.6 GPixel/s versus 112.6 GPixel/s for the N1X 48SM. However, the N1X 48SM counters with a higher texture fill rate of 900.9 GTexel/s versus 499.2 GTexel/s for the W7700. This indicates the NVIDIA part has a different compute profile, favoring texture-heavy operations over pixel output.

The N1X 48SM wins decisively in memory capacity. Its 128 GB of LPDDR5X memory dwarfs the 16 GB of GDDR6 on the W7700. For workloads requiring massive datasets resident in memory, the N1X 48SM has a clear structural advantage. The W7700 wins in memory bandwidth, however, delivering 576.0 GB/s versus 273.2 GB/s.

In floating-point throughput, the W7700 delivers 31.95 TFLOPS FP32 and 63.90 TFLOPS FP16 (2:1 ratio). The N1X 48SM delivers 28.83 TFLOPS FP32 and 28.83 TFLOPS FP16 (1:1 ratio). The W7700 leads in FP32 by approximately 11%, and leads in FP16 by a much larger margin due to its 2:1 throughput advantage.

The N1X 48SM has 192 tensor cores, which the W7700 lacks entirely. This suggests the NVIDIA part may be better suited for tensor-based workloads, though no benchmark data exists to confirm this. The W7700 has a release date of November 12, 2023, while the N1X 48SM has a release date of May 31, 2026, making it a newer design.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon PRO W7700 has an average benchmark score of 118976. The NVIDIA N1X 48SM has an average benchmark score of 0, as no benchmarks are recorded for it.

Q: How does memory capacity compare between the two?

A: The NVIDIA N1X 48SM has 128 GB of LPDDR5X memory, which is 8 times the 16 GB of GDDR6 memory on the AMD Radeon PRO W7700.

Q: Which GPU offers higher memory bandwidth?

A: The AMD Radeon PRO W7700 offers 576.0 GB/s bandwidth, more than double the 273.2 GB/s of the NVIDIA N1X 48SM.

Q: Do both GPUs have the same number of ray tracing cores?

A: Yes, both the AMD Radeon PRO W7700 and the NVIDIA N1X 48SM have 48 ray tracing cores.

Q: What is the FP32 performance difference?

A: The AMD Radeon PRO W7700 delivers 31.95 TFLOPS FP32, while the NVIDIA N1X 48SM delivers 28.83 TFLOPS FP32. The W7700 is approximately 11% higher.

Q: Does the NVIDIA N1X 48SM support the same graphics APIs as the AMD card?

A: No. The AMD Radeon PRO W7700 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA N1X 48SM lists N/A for all three.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the AMD Radeon PRO W7700 and the NVIDIA N1X 48SM. The W7700 has two recorded benchmark scores, while the N1X 48SM has none. This absence of comparative data means the head-to-head assessment relies on the W7700's individual scores and the architectural specifications of both parts.

The Radeon PRO W7700 scores 108245 in Geekbench OpenCL. This result places it in the 95th percentile among all GPUs. The nearest rivals in the database provide context: the NVIDIA GB10 scores 117393, which is 1.3% higher than the W7700's average. The NVIDIA RTX 4000 SFF Ada Generation scores 117088, 1.6% higher. The NVIDIA Tesla V100 SXM2 16 GB scores 114395, 4% higher. The NVIDIA RTX A5500 Mobile scores 113944, 4.4% higher. The W7700 trails these four rivals, but the margins are small, ranging from 1.3% to 4.4%.

The Geekbench Vulkan score of 129706 is notably higher than the OpenCL score, indicating the W7700 performs better under Vulkan workloads. This difference of 21461 points between the two API tests suggests the architecture favors Vulkan's execution model.

The N1X 48SM has no benchmark scores to compare directly. Its 50th percentile ranking among all GPUs reflects the absence of data, not measured performance. The database treats it as a median entry by default.

In theoretical throughput, the W7700's FP32 rate of 31.95 TFLOPS exceeds the N1X 48SM's 28.83 TFLOPS. The pixel rate comparison shows the W7700 at 249.6 GPixel/s, more than double the N1X's 112.6 GPixel/s. The texture rate comparison reverses: the N1X 48SM reaches 900.9 GTexel/s, nearly double the W7700's 499.2 GTexel/s.

The W7700's 16 GB GDDR6 memory with 576.0 GB/s bandwidth provides a substantial bandwidth advantage. The N1X 48SM's 128 GB LPDDR5X memory provides a capacity advantage but at less than half the bandwidth. For bandwidth-sensitive workloads, the W7700 is structurally superior. For capacity-bound workloads, the N1X 48SM has a clear edge.

The W7700 supports PCIe 4.0 x16, while the N1X 48SM supports PCIe 5.0 x16. The newer PCIe standard on the NVIDIA part allows for higher host interface bandwidth, though the W7700's dedicated card form factor with a 190 W TDP suggests it can sustain higher continuous performance than an IGP with unknown power limits.

The W7700's launch MSRP is 999 USD. This single price point, combined with the measured benchmark scores, establishes it as a high-end workstation product. The N1X 48SM has no launch MSRP recorded.

The production status of the N1X 48SM is listed as Active, while the W7700's status is not specified. The N1X 48SM is scheduled for release on May 31, 2026, indicating it is a forthcoming product. The W7700 was released on November 12, 2023, and its predecessor is the Radeon Pro Vega.

The architectural differences in shading units (3072 for W7700 versus 6144 for N1X 48SM) and TMUs (192 versus 384) suggest the NVIDIA part is designed for different compute patterns. The doubling of these resources, combined with tensor cores and a 1:1 FP16 ratio, points toward AI or inference workloads rather than traditional rasterization. The W7700's 2:1 FP16 ratio and higher clock speeds indicate a focus on graphics and general compute throughput.

The ROP disparity is notable: 96 ROPs on the W7700 versus 48 on the N1X 48SM. This explains the pixel rate advantage of the AMD part. The N1X 48SM compensates with higher texture throughput, which may benefit certain shader-heavy workloads.

The absence of API support data for the N1X 48SM (all listed as N/A) reinforces that this is not a conventional graphics card. Its integration as an IGP with a single HDMI output suggests a specialized role, possibly in embedded or server contexts where display output is secondary.

The W7700's four DisplayPort 2.1 outputs support multi-display workstation configurations. The N1X 48SM's single HDMI output limits such use cases. The W7700's dual-slot form factor and 8-pin power connector require a 450 W PSU, consistent with its 190 W TDP. The N1X 48SM requires no power connectors and has no suggested PSU, consistent with an integrated design.

In summary, the recorded data shows the Radeon PRO W7700 as a measured, high-performance workstation GPU in the 95th percentile. The N1X 48SM presents as a higher-capacity, tensor-equipped integrated processor with no recorded performance data. The choice between them depends entirely on whether the user needs proven benchmark performance or massive on-package memory capacity.