AMD Radeon RX 7400 vs NVIDIA N1X 40SM Comparison

Head-to-Head Benchmarks

The recorded data for this comparison is unusually one-sided in terms of available measurements. The AMD Radeon RX 7400 has eight benchmark entries in the database, while the NVIDIA N1X 40SM has no recorded benchmark scores at all. This means the head-to-head analysis relies entirely on the RX 7400's measured performance and the N1X 40SM's architectural specifications, with no direct numerical contest possible.

The RX 7400's strongest measured result comes in the Passmark G3D test, where it scores 11,897 points. This places it in the 17th percentile of all GPUs in the database, a relatively modest standing that reflects its position among integrated and entry-level discrete solutions. The average benchmark score across all eight tests is 2,467 points, which aligns closely with its nearest rivals: the AMD Radeon 8040S averages 2,440 points (1.1% behind), the NVIDIA GeForce 710M averages 2,433 points (1.4% behind), the Intel HD Graphics 610 averages 2,425 points (1.8% behind), and the NVIDIA GeForce GT 710M averages 2,422 points (1.9% behind). These delta percentages show that the RX 7400 leads this cluster by a narrow but consistent margin.

In compute workloads, the RX 7400 records 5,152 points on Passmark GPU Compute. This is more than double its DirectX 12 score of 44 points, indicating that the card's raw throughput capabilities outpace its API-specific rasterization performance in this particular test suite. The DirectX 11 score of 97 points and DirectX 9 score of 176 points follow an ascending pattern, with legacy APIs showing relatively stronger results. The DirectX 10 score of 59 points sits between the DirectX 12 and DirectX 11 results. The Passmark G2D score of 1,209 points measures 2D desktop performance, which is substantially higher than any of the 3D API scores, a typical pattern for GPUs with modest 3D capabilities.

The 3DMark Steel Nomad DX12 test yields a score of 1,103 points for the RX 7400. This modern DirectX 12 benchmark provides a more demanding workload than the Passmark suite, and the score reflects the card's entry-level positioning. The N1X 40SM has no comparable 3DMark entry, so no direct comparison can be drawn from this metric.

The N1X 40SM holds a 50th percentile ranking across all GPUs, which is significantly higher than the RX 7400's 17th percentile. However, this percentile is based on zero recorded benchmark scores, meaning the ranking likely derives from its architectural classification rather than measured performance. The RX 7400's percentile is backed by actual test data across multiple workloads.

Where Each One Wins

Based on the available data, the RX 7400 wins in terms of measured benchmark evidence. It has eight recorded test results across 3DMark and Passmark suites, covering DirectX 9, 10, 11, 12, compute, 2D, and 3D workloads. The N1X 40SM has no recorded benchmarks, so any assessment of its performance must come from its specification sheet rather than empirical testing.

The RX 7400 demonstrates its strongest relative performance in legacy DirectX workloads. Its DirectX 9 score of 176 points is the highest among its API-specific Passmark results, suggesting that older titles or applications using this API would see the best relative performance. The DirectX 11 score of 97 points is roughly half of the DirectX 9 result, while DirectX 12 drops to 44 points. This pattern indicates diminishing returns as API complexity increases, a characteristic of entry-level hardware.

For compute-oriented tasks, the RX 7400's Passmark GPU Compute score of 5,152 points is its second-highest benchmark result after the G3D score. This suggests the card can handle general-purpose GPU workloads with reasonable competence, likely due to its 1,792 shading units and 28 ray tracing cores. The FP32 throughput of 16.49 TFLOPS and FP16 throughput of 32.97 TFLOPS (2:1 ratio) provide theoretical compute headroom that the benchmark partially confirms.

The N1X 40SM, by contrast, presents a specification profile that suggests different strengths. Its FP32 output is rated at 24.02 TFLOPS, which is 45.7% higher than the RX 7400's 16.49 TFLOPS. The N1X 40SM also has 5,120 shading units versus 1,792, and 320 texture mapping units versus 112. These figures indicate substantially higher theoretical throughput. However, with no benchmark scores recorded, the database cannot confirm whether these specifications translate into real-world wins.

The N1X 40SM's memory configuration is another differentiator. It pairs 128 GB of LPDDR5X on a 256-bit bus for 273.2 GB/s bandwidth, while the RX 7400 uses 8 GB of GDDR6 on a 128-bit bus for 288.0 GB/s. The N1X 40SM has 16 times the memory capacity but slightly lower bandwidth. For workloads that require large datasets resident in VRAM, the N1X 40SM's capacity advantage could be decisive, though no benchmark data confirms this.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon RX 7400 has an average benchmark score of 2,467 points across eight tests. The NVIDIA N1X 40SM has an average benchmark score of 0, as no benchmark results are recorded for it in the database.

Q: How does the RX 7400 compare to its nearest rivals in average score?

A: The RX 7400 leads its nearest rivals by small margins: it is 1.1% ahead of the AMD Radeon 8040S (2,440 points), 1.4% ahead of the NVIDIA GeForce 710M (2,433 points), 1.8% ahead of the Intel HD Graphics 610 (2,425 points), and 1.9% ahead of the NVIDIA GeForce GT 710M (2,422 points).

Q: What is the percentile ranking for each GPU?

A: The RX 7400 ranks in the 17th percentile of all GPUs in the database. The N1X 40SM ranks in the 50th percentile, though this is not supported by any recorded benchmark scores.

Q: Which GPU has higher memory capacity?

A: The NVIDIA N1X 40SM has 128 GB of LPDDR5X memory on a 256-bit bus. The AMD Radeon RX 7400 has 8 GB of GDDR6 memory on a 128-bit bus. The N1X 40SM offers 16 times the capacity.

Q: What are the FP32 performance ratings for each GPU?

A: The RX 7400 is rated at 16.49 TFLOPS FP32, while the N1X 40SM is rated at 24.02 TFLOPS FP32. The N1X 40SM's FP16 rating is also 24.02 TFLOPS (1:1 ratio), whereas the RX 7400's FP16 rating is 32.97 TFLOPS (2:1 ratio).

Q: Which GPU has more texture mapping units and ray tracing cores?

A: The N1X 40SM has 320 TMUs and 40 ray tracing cores. The RX 7400 has 112 TMUs and 28 ray tracing cores. The N1X 40SM also has 160 tensor cores, while the RX 7400 has no tensor cores listed.

Specification Differences

The two GPUs differ across nearly every specification category. The RX 7400 uses a Navi 33 chip built on TSMC's 6 nm process, while the N1X 40SM uses a GB20B chip on TSMC's 5 nm process. The RX 7400 has a die size of 204 mm², compared to 382 mm² for the N1X 40SM. Transistor counts are 13,300 million for the RX 7400 and unknown for the N1X 40SM.

Clock speeds show a significant divergence. The RX 7400 has a base clock of 1,452 MHz and a boost clock of 2,300 MHz, with a game clock of 2,200 MHz. The N1X 40SM has a lower base clock of 741 MHz but a higher boost clock of 2,346 MHz. Memory clocks also differ: the RX 7400 runs at 2,250 MHz (18 Gbps effective), while the N1X 40SM runs at 1,067 MHz (8.5 Gbps effective).

Memory configurations are starkly different. The RX 7400 uses 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The N1X 40SM uses 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The RX 7400 has more pixel fill rate at 147.2 GPixel/s versus 93.84 GPixel/s, but the N1X 40SM has higher texture fill rate at 750.7 GTexel/s versus 257.6 GTexel/s.

Power and physical specifications also differ. The RX 7400 has a TDP of 43 W, uses a dual-slot form factor with a 1x 6-pin power connector, and requires a 200 W suggested PSU. The N1X 40SM has unknown TDP, is an IGP (integrated graphics processor) with no power connectors, and has no suggested PSU listed. The RX 7400 uses PCIe 4.0 x8, while the N1X 40SM uses PCIe 5.0 x16. Display outputs are 1x HDMI 2.1a and 3x DisplayPort 2.1 for the RX 7400, versus 1x HDMI for the N1X 40SM.

API support is another major difference. The RX 7400 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists DirectX, OpenGL, and Vulkan as N/A. The RX 7400 has a release date of August 7, 2025, while the N1X 40SM has a release date of May 31, 2026.

Architecture Differences

The architectural split is fundamental. The RX 7400 uses AMD's RDNA 3.0 architecture, codenamed Hotpink Bonefish, and belongs to the Navi III generation (RX 7000 series). The N1X 40SM uses NVIDIA's Blackwell 2.0 architecture and belongs to the Blackwell IGP (N1x) generation. The RX 7400's predecessor is Navi II, and its successor is Navi IV. The N1X 40SM has no listed predecessor or successor.

The RX 7400's RDNA 3.0 design emphasizes efficiency, evidenced by its 6 nm process and 43 W TDP. It has 1,792 shading units, 112 TMUs, 64 ROPs, 28 ray tracing cores, and no tensor cores. The N1X 40SM's Blackwell 2.0 design uses a 5 nm process and includes 5,120 shading units, 320 TMUs, 40 ROPs, 40 ray tracing cores, and 160 tensor cores. The presence of tensor cores in the N1X 40SM indicates AI acceleration capabilities that the RX 7400 lacks entirely.

The transistor density figures highlight the process difference: the RX 7400 achieves 65.2 million transistors per mm² on its 204 mm² die, while the N1X 40SM's density is unknown on its 382 mm² die. The N1X 40SM's larger die with a more advanced process node suggests a more complex design, likely incorporating the tensor cores and significantly more shading units.

The FP16 performance ratios differ meaningfully. The RX 7400 delivers 32.97 TFLOPS FP16 at a 2:1 ratio relative to FP32, indicating dedicated FP16 hardware. The N1X 40SM delivers 24.02 TFLOPS FP16 at a 1:1 ratio, meaning it processes FP16 at the same rate as FP32. This architectural choice suggests the N1X 40SM prioritizes consistent throughput across precision formats, while the RX 7400 optimizes for FP16 workloads.

The production status also differs: the N1X 40SM is marked as Active, while the RX 7400 has no production status listed. The RX 7400's dual-slot discrete design with a 6-pin connector contrasts with the N1X 40SM's IGP form factor, which requires no external power. These physical differences reflect their intended deployment scenarios: the RX 7400 as an add-in board, and the N1X 40SM as an integrated solution likely destined for a system-on-chip package.