AMD Radeon PRO W7400 vs NVIDIA N1X 40SM Comparison

The Verdict

The AMD Radeon PRO W7400 and the NVIDIA N1X 40SM target fundamentally different roles, and the recorded data supports distinct selections. The W7400 is a professional workstation card with a 55 W TDP, a single-slot design, and four DisplayPort 2.1 outputs, making it suitable for multi-display productivity environments. The N1X 40SM is an integrated graphics processor (IGP) with a massive 128 GB memory pool and a PCIe 5.0 x16 interface, indicating a compute-oriented or server-class deployment. Based on the database, the N1X 40SM delivers 24.02 TFLOPS FP32 versus 7.885 TFLOPS for the W7400, a 3.05x raw compute advantage. However, the W7400 supports the full DirectX 12 Ultimate API set, while the N1X 40SM lists N/A for DirectX, OpenGL, and Vulkan, meaning it is not intended for conventional graphics workloads. Choose the W7400 for standard graphics acceleration and display connectivity; choose the N1X 40SM for high-throughput compute tasks where graphics APIs are irrelevant.

Architecture Differences

The two chips come from different architectural lineages. The AMD Radeon PRO W7400 uses the Navi 33 chip built on RDNA 3.0 architecture, with the codename "Hotpink Bonefish." It is fabricated on a 6 nm process at TSMC, containing 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2M per mm². The NVIDIA N1X 40SM uses the GB20B chip built on Blackwell 2.0 architecture, part of the Blackwell IGP (N1x) generation. It is fabricated on a 5 nm process at TSMC, with a die size of 382 mm² but an unknown transistor count and density.

The W7400 includes 1792 shading units, 112 texture mapping units, 64 ROPs, and 28 ray tracing cores. The N1X 40SM has 5120 shading units, 320 TMUs, 40 ROPs, and 40 RT cores, plus 160 tensor cores. The N1X 40SM has no tensor cores listed for the W7400. Clock behavior differs sharply: the W7400 has a base clock of 330 MHz and a boost of 1100 MHz, while the N1X 40SM runs at 741 MHz base and 2346 MHz boost. Memory architecture diverges: the W7400 uses 8 GB GDDR6 on a 128-bit bus with 172.8 GB/s bandwidth; the N1X 40SM uses 128 GB LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The N1X 40SM also supports PCIe 5.0 x16, whereas the W7400 is limited to PCIe 4.0 x8.

Head-to-Head Benchmarks

The database records no direct head-to-head benchmark entries, and both items have an average benchmark score of zero with zero wins each. The comparison rests on specification-derived metrics. The N1X 40SM dominates in raw throughput: its FP32 compute of 24.02 TFLOPS is 3.05x the W7400's 7.885 TFLOPS. FP16 performance follows the same 1:1 ratio for both, so the N1X 40SM again delivers 24.02 TFLOPS versus 7.885 TFLOPS. Texture rate favors the N1X 40SM at 750.7 GTexel/s versus 123.2 GTexel/s, a 6.09x advantage. Pixel rate also favors the N1X 40SM at 93.84 GPixel/s versus 70.40 GPixel/s, a 1.33x lead.

The W7400 counters in specific areas. Its ROP count of 64 exceeds the N1X 40SM's 40 ROPs, which partially explains the closer pixel rate margin. The W7400's memory clock runs at 1350 MHz (10.8 Gbps effective) versus 1067 MHz (8.5 Gbps effective) for the N1X 40SM, indicating faster per-pin signaling. The W7400 includes full graphics API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the N1X 40SM lists N/A for all three. The W7400 also offers four DisplayPort 2.1 outputs versus a single HDMI on the N1X 40SM. For conventional rendering workloads, the W7400 is the only viable option given the N1X 40SM's lack of graphics API support.

Specification Differences

The two products differ across nearly every recorded specification field.

• Process node: W7400 uses 6 nm; N1X 40SM uses 5 nm.
• Die size: W7400 measures 204 mm²; N1X 40SM measures 382 mm².
• Transistors: W7400 has 13,300 million; N1X 40SM is unknown.
• Transistor density: W7400 has 65.2M / mm²; N1X 40SM has none listed.
• Base clock: W7400 at 330 MHz; N1X 40SM at 741 MHz.
• Boost clock: W7400 at 1100 MHz; N1X 40SM at 2346 MHz.
• Memory clock: W7400 at 1350 MHz (10.8 Gbps); N1X 40SM at 1067 MHz (8.5 Gbps).
• Memory size: W7400 has 8 GB; N1X 40SM has 128 GB.
• Memory type: W7400 uses GDDR6; N1X 40SM uses LPDDR5X.
• Memory bus width: W7400 at 128-bit; N1X 40SM at 256-bit.
• Memory bandwidth: W7400 at 172.8 GB/s; N1X 40SM at 273.2 GB/s.
• Shading units: W7400 has 1792; N1X 40SM has 5120.
• TMUs: W7400 has 112; N1X 40SM has 320.
• ROPs: W7400 has 64; N1X 40SM has 40.
• RT cores: W7400 has 28; N1X 40SM has 40.
• Tensor cores: W7400 has none; N1X 40SM has 160.
• Pixel rate: W7400 at 70.40 GPixel/s; N1X 40SM at 93.84 GPixel/s.
• Texture rate: W7400 at 123.2 GTexel/s; N1X 40SM at 750.7 GTexel/s.
• FP32: W7400 at 7.885 TFLOPS; N1X 40SM at 24.02 TFLOPS.
• FP16: W7400 at 7.885 TFLOPS; N1X 40SM at 24.02 TFLOPS.
• TDP: W7400 at 55 W; N1X 40SM unknown.
• Slot width: W7400 is single-slot; N1X 40SM is IGP (integrated).
• Power connectors: W7400 has none; N1X 40SM has none.
• Suggested PSU: W7400 at 250 W; N1X 40SM has none.
• Bus interface: W7400 at PCIe 4.0 x8; N1X 40SM at PCIe 5.0 x16.
• Display outputs: W7400 has 4x DisplayPort 2.1; N1X 40SM has 1x HDMI.
• APIs: W7400 supports DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4; N1X 40SM lists N/A for all.
• Dimensions: W7400 is 168 mm long, 69 mm high, 20 mm wide; N1X 40SM has no dimensions listed.
• Release date: W7400 released 2025-08-02; N1X 40SM released 2026-05-31.
• Predecessor: W7400 lists Radeon Pro Vega; N1X 40SM has none.

FAQ

Q: Which GPU has higher raw compute performance?

A: The NVIDIA N1X 40SM delivers 24.02 TFLOPS FP32, which is 3.05x the 7.885 TFLOPS of the AMD Radeon PRO W7400.

Q: Does the NVIDIA N1X 40SM support standard graphics APIs?

A: No. The database lists DirectX, OpenGL, and Vulkan as N/A for the N1X 40SM. The W7400 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: How much memory does each GPU provide?

A: The AMD Radeon PRO W7400 has 8 GB of GDDR6 on a 128-bit bus. The NVIDIA N1X 40SM has 128 GB of LPDDR5X on a 256-bit bus.

Q: What is the memory bandwidth difference?

A: The N1X 40SM has 273.2 GB/s bandwidth versus 172.8 GB/s for the W7400, a 1.58x advantage for the N1X 40SM.

Q: Which GPU has more display outputs?

A: The W7400 has four DisplayPort 2.1 outputs. The N1X 40SM has a single HDMI output.

Q: What are the power requirements for the AMD GPU?

A: The W7400 has a 55 W TDP, no power connectors, and a suggested PSU of 250 W. The N1X 40SM has an unknown TDP and no suggested PSU listed.

Where Each One Wins

The AMD Radeon PRO W7400 wins in conventional graphics and display-centric workloads. Its full DirectX 12 Ultimate support, OpenGL 4.6, and Vulkan 1.4 make it the only option for running standard graphics applications. The four DisplayPort 2.1 outputs enable multi-monitor professional setups, and its single-slot design with no power connectors simplifies installation in workstations. The W7400's 64 ROPs exceed the N1X 40SM's 40 ROPs, which narrows the pixel rate gap to 70.40 GPixel/s versus 93.84 GPixel/s. Its 55 W TDP and 250 W suggested PSU indicate low system power draw.

The NVIDIA N1X 40SM wins in compute-heavy, non-graphics scenarios. Its 5120 shading units, 320 TMUs, and 160 tensor cores provide massive parallel throughput. The 24.02 TFLOPS FP32 and FP16 performance is 3.05x higher than the W7400, making it suitable for AI inference, scientific simulation, or data processing where graphics APIs are irrelevant. The 128 GB memory pool with 273.2 GB/s bandwidth supports very large datasets that would exceed the W7400's 8 GB capacity. The PCIe 5.0 x16 interface doubles the lane width and doubles the bus generation versus the W7400's PCIe 4.0 x8, offering higher host transfer rates. The N1X 40SM's 5 nm process node also suggests improved transistor efficiency per area, though its die size is 1.87x larger than the W7400's 204 mm².

The texture rate difference is the most pronounced: the N1X 40SM achieves 750.7 GTexel/s, which is 6.09x the W7400's 123.2 GTexel/s. This indicates a strong advantage in texture-heavy compute tasks. The N1X 40SM also has 2.86x the shading units and 2.86x the TMUs of the W7400, while its RT core count is 1.43x higher. The W7400's 28 RT cores still provide some ray tracing capability, but the N1X 40SM's 40 RT cores are more numerous, assuming software support exists.

For memory-bound workloads, the N1X 40SM wins with 273.2 GB/s, but the W7400's faster memory clock (1350 MHz versus 1067 MHz) indicates lower latency per access. The W7400 also has a narrower 128-bit bus, which is offset by its higher effective speed. The N1X 40SM's LPDDR5X type is typically lower power than GDDR6, but the database records no TDP for the N1X 40SM, so a direct power comparison is impossible.

In summary, the data shows two distinct winners: the W7400 for any workload requiring graphics API compatibility, display outputs, or low power draw, and the N1X 40SM for raw compute throughput, large memory capacity, and high-bandwidth data processing. Neither product can substitute for the other's primary strengths.