AMD Radeon PRO W7800 vs NVIDIA N1 20SM Comparison

The Verdict

The data positions the AMD Radeon PRO W7800 as the clear performance leader between these two workstation-oriented GPUs. Its recorded average benchmark score of 164,894 places it in the 97th percentile of all GPUs in the database, while the NVIDIA N1 20SM holds a 50th percentile ranking with no recorded benchmark scores and an average score of zero. The W7800 delivers 45.25 TFLOPS of FP32 compute against the N1 20SM's 12.01 TFLOPS, a 3.8x gap in raw shader throughput. For compute workloads, rendering, and any task that leverages the full GPU pipeline, the Radeon PRO W7800 is the only defensible choice based on recorded measurements.

The NVIDIA N1 20SM, however, is not without a defined role. It is an integrated graphics processor (IGP) with 128 GB of LPDDR5X memory, a capacity four times larger than the W7800's 32 GB. Its 273.2 GB/s of memory bandwidth is lower than the W7800's 576.0 GB/s, but the sheer capacity, combined with a PCIe 5.0 x16 interface and 80 tensor cores, points toward large-model inference or memory-resident datasets where compute density matters less than holding data on-chip. The N1 20SM also requires no power connectors and is a single-slot IGP, which suits compact or embedded system designs. The AMD card demands a 600 W suggested PSU and dual 8-pin connectors.

The verdict from the database is straightforward: the W7800 wins every measured performance category by wide margins, while the N1 20SM wins on memory capacity, PCIe generation, and physical integration. Neither card replaces the other; they serve opposite ends of the workstation spectrum.

Architecture Differences

The two GPUs come from different architectural lineages and are fabricated on the same 5 nm TSMC process. The AMD Radeon PRO W7800 uses the Navi 31 chip with the RDNA 3.0 architecture, codenamed Plum Bonito, and belongs to the Radeon Pro Navi generation. It packs 57,700 million transistors on a 529 mm² die, yielding a transistor density of 109.1M per mm². The NVIDIA N1 20SM uses the GB20B chip with the Blackwell 2.0 architecture and belongs to the Blackwell IGP generation. Its die size is 382 mm², and its transistor count is listed as unknown in the database.

The compute resources differ substantially. The W7800 carries 4,480 shading units, 280 texture mapping units, 128 ROPs, and 70 ray tracing cores. The N1 20SM has 2,560 shading units, 160 TMUs, 24 ROPs, and 20 RT cores. The NVIDIA part also includes 80 tensor cores, a feature absent from the AMD specification. Clock behavior shows a different profile: the W7800 runs a 1,895 MHz base and 2,525 MHz boost, while the N1 20SM runs a much lower 741 MHz base but boosts to 2,346 MHz. The AMD card's higher base clock and larger execution width explain its commanding lead in pixel rate (323.2 GPixel/s vs 56.30 GPixel/s) and texture rate (707.0 GTexel/s vs 375.4 GTexel/s).

Memory architecture also diverges. The W7800 uses 32 GB of GDDR6 on a 256-bit bus at 18 Gbps effective, producing 576.0 GB/s of bandwidth. The N1 20SM uses 128 GB of LPDDR5X on the same 256-bit bus at 8.5 Gbps effective, producing only 273.2 GB/s. The FP16 ratio differs as well: the W7800 achieves 90.50 TFLOPS at a 2:1 ratio, while the N1 20SM delivers 12.01 TFLOPS at a 1:1 ratio, meaning no FP16 advantage over FP32 on the NVIDIA part.

Head-to-Head Benchmarks

No direct head-to-head benchmark entries exist in the database for these two GPUs, so the comparison relies on the recorded benchmark scores for the AMD card and the architectural specifications for the NVIDIA part. The W7800 has two recorded benchmark results: 154,366 in Geekbench OpenCL and 175,422 in Geekbench Vulkan, producing an average of 164,894. The N1 20SM has no recorded benchmark scores, an average of 0, and no nearest rivals listed.

The W7800's average score of 164,894 sits in the 97th percentile of all GPUs. Its nearest rivals in the database are the NVIDIA RTX 4500 Ada Generation at 166,094 (0.7% higher), the AMD Radeon Pro W6900X at 168,574 (2.2% higher), the NVIDIA RTX A5500 at 165,217 (0.2% higher), and the NVIDIA A100 PCIe 40 GB at 162,504 (1.5% lower). The W7800 effectively trades blows with these high-end workstation cards, all within a 2.2% band. The N1 20SM, by contrast, sits at the 50th percentile with no rival data, indicating no comparable measurements in the database.

The FP32 compute gap is the most decisive measured difference: 45.25 TFLOPS versus 12.01 TFLOPS, a 3.8x advantage for the AMD card. The texture rate advantage is 1.9x (707.0 vs 375.4 GTexel/s), and the pixel rate advantage is 5.7x (323.2 vs 56.30 GPixel/s). Memory bandwidth favors the W7800 by 2.1x (576.0 vs 273.2 GB/s). The only performance-related specifications favoring the N1 20SM are memory capacity (128 GB vs 32 GB) and tensor core presence (80 vs none), neither of which appears in a recorded benchmark score.

FAQ

Q: Which GPU has the higher recorded benchmark score?

A: The AMD Radeon PRO W7800 has an average benchmark score of 164,894 from Geekbench OpenCL (154,366) and Geekbench Vulkan (175,422). The NVIDIA N1 20SM has no recorded benchmark scores and an average score of 0.

Q: How do their compute capabilities compare?

A: The W7800 delivers 45.25 TFLOPS of FP32 and 90.50 TFLOPS of FP16 (2:1 ratio). The N1 20SM delivers 12.01 TFLOPS of FP32 and 12.01 TFLOPS of FP16 (1:1 ratio). The AMD card leads by 3.8x in both FP32 and FP16 throughput.

Q: Which GPU has more memory, and does that affect bandwidth?

A: The N1 20SM has 128 GB of LPDDR5X memory, while the W7800 has 32 GB of GDDR6. Despite the capacity advantage, the N1 20SM's bandwidth is 273.2 GB/s, lower than the W7800's 576.0 GB/s.

Q: What are the physical and power requirements of each card?

A: The W7800 is a dual-slot card measuring 280 mm in length, 110 mm in height, and 40 mm in width, requiring 2x 8-pin power connectors and a 600 W suggested PSU. The N1 20SM is an IGP with no power connectors and no listed dimensions.

Q: Does the NVIDIA N1 20SM support any API features?

A: The database lists DirectX, OpenGL, and Vulkan support as N/A for the N1 20SM. The W7800 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: Which GPU has tensor cores?

A: The NVIDIA N1 20SM includes 80 tensor cores. The AMD Radeon PRO W7800 lists no tensor cores in its specifications.

Where Each One Wins

The AMD Radeon PRO W7800 wins every measured performance category. Its 45.25 TFLOPS FP32 throughput, 90.50 TFLOPS FP16 throughput, 707.0 GTexel/s texture rate, 323.2 GPixel/s pixel rate, and 576.0 GB/s memory bandwidth give it overwhelming advantages in compute-heavy rendering, simulation, and graphics workloads. The 70 ray tracing cores outnumber the N1 20SM's 20, and the 128 ROPs versus 24 ROPs further cements its dominance in rasterization. The W7800 also supports modern graphics APIs including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the N1 20SM lists N/A for all three. For any task that involves rendering, video processing, or general GPU compute with standard graphics APIs, the recorded data shows only one viable option.

The NVIDIA N1 20SM wins on memory capacity, offering 128 GB versus 32 GB. That 96 GB difference is substantial for workloads where the entire dataset must reside in GPU memory, such as very large language models or scientific datasets that exceed 32 GB. The PCIe 5.0 x16 bus interface doubles the generation of the W7800's PCIe 4.0 x16, providing higher host-to-device transfer potential. The 80 tensor cores give it a dedicated matrix math unit that the AMD card lacks entirely, which matters for AI inference workloads that rely on tensor operations. The IGP form factor with no power connectors and a single HDMI output makes it suitable for low-power, compact systems where the W7800's dual-slot 260 W design would not fit.

The W7800 also wins on display outputs, providing 3x DisplayPort 2.1 and 1x mini-DisplayPort 2.1, versus the N1 20SM's single HDMI port. The W7800 is an active production product with a launch MSRP of 2,499 USD, while the N1 20SM has no launch MSRP listed. The AMD card's release date of April 2023 precedes the N1 20SM's May 2026 release, giving the W7800 a longer track record in the market.

Specification Differences

The two GPUs differ across nearly every recorded specification field. The AMD Radeon PRO W7800 uses the Navi 31 chip with RDNA 3.0 architecture, while the NVIDIA N1 20SM uses the GB20B chip with Blackwell 2.0 architecture. Both use a 5 nm process from TSMC, but the W7800's die is 529 mm² versus 382 mm² for the N1 20SM. The W7800 has 57,700 million transistors; the N1 20SM's transistor count is unknown.

Clock speeds differ: the W7800 runs at 1,895 MHz base and 2,525 MHz boost, while the N1 20SM runs at 741 MHz base and 2,346 MHz boost. Memory clocks are 2,250 MHz (18 Gbps effective) for the AMD card and 1,067 MHz (8.5 Gbps effective) for the NVIDIA part. Memory type differs: GDDR6 versus LPDDR5X. Capacity differs: 32 GB versus 128 GB. Bandwidth differs: 576.0 GB/s versus 273.2 GB/s.

Shader resources differ: 4,480 shading units, 280 TMUs, and 128 ROPs for the W7800, versus 2,560 shading units, 160 TMUs, and 24 ROPs for the N1 20SM. Ray tracing cores number 70 versus 20. The N1 20SM has 80 tensor cores; the W7800 has none. FP32 output is 45.25 TFLOPS versus 12.01 TFLOPS. FP16 output is 90.50 TFLOPS (2:1) versus 12.01 TFLOPS (1:1).

Power and physical specifications diverge sharply. The W7800 has a 260 W TDP, dual-slot width, 2x 8-pin power connectors, and a 600 W suggested PSU. The N1 20SM has unknown TDP, IGP slot width, no power connectors, and no suggested PSU. Bus interface: PCIe 4.0 x16 for AMD, PCIe 5.0 x16 for NVIDIA. Display outputs: 3x DisplayPort 2.1 plus 1x mini-DisplayPort 2.1 for AMD, 1x HDMI for NVIDIA. API support: DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 for AMD, all N/A for NVIDIA. The W7800 has dimensions of 280 mm length, 110 mm height, and 40 mm width; the N1 20SM has no listed dimensions. The W7800 lists a predecessor (Radeon Pro Vega) and a launch MSRP of 2,499 USD; the N1 20SM lists neither.