AMD Radeon 740M vs NVIDIA N1X 48SM Comparison

Head-to-Head Benchmarks

The data presents an unusual comparison: the AMD Radeon 740M has recorded benchmark scores while the NVIDIA N1X 48SM has no benchmark entries in the database. This absence of data for the NVIDIA part is the defining factor in any head-to-head analysis. The Radeon 740M delivers an average benchmark score of 12870 across its two recorded tests, placing it in the 53rd percentile of all GPUs tracked. The N1X 48SM, by contrast, has a recorded average score of 0 and sits in the 50th percentile, a position that reflects its lack of tested performance rather than a measured outcome.

The AMD Radeon 740M’s individual scores show a clear split between APIs. Its Geekbench OpenCL result is 10172, while its Geekbench Vulkan score reaches 15568. That represents a substantial gap of 5396 points between the two tests, indicating that the Vulkan driver path extracts significantly more performance from the same hardware. The OpenCL score, however, anchors the average closer to the lower end of the range. The database shows the Radeon 740M’s nearest rivals in overall average score: the AMD FirePro W5100 at 12847 (a 0.2% delta), the AMD Radeon Pro 455 at 12831 (0.3% delta), and the NVIDIA GeForce GTX 590 at 12830 (0.3% delta). The AMD Radeon RX 580 sits slightly above at 12928, giving the 740M a -0.4% delta against that card. These deltas are all within a single percentage point, meaning the 740M’s average score places it in a tightly packed cluster of older discrete GPUs.

With no benchmark results for the N1X 48SM, there are no wins to assign in either direction. The head-to-head benchmark table is empty. The Radeon 740M has a measurable performance footprint; the N1X 48SM does not. Any direct numerical comparison between the two parts is therefore impossible from the recorded data. The only meaningful statement is that the 740M produces scores while the N1X 48SM produces none.

The Verdict

The verdict follows directly from the data availability. The AMD Radeon 740M is the only one of the two with any measured performance. Its average benchmark score of 12870 places it in the 53rd percentile of all GPUs, with a Vulkan score of 15568 that shows strong API-specific performance. The NVIDIA N1X 48SM has no benchmarks, no average score, and no percentile ranking beyond a default 50th percentile. For anyone selecting between these two based on recorded data, the choice is unambiguous: the Radeon 740M is the only part with evidence of performance.

The N1X 48SM’s specifications, however, suggest a much higher theoretical capability. It lists 6144 shading units, 384 texture mapping units, and 48 ROPs, compared to the 740M’s 256 shading units, 16 TMUs, and 8 ROPs. Its FP32 throughput is 28.83 TFLOPS versus 2.867 TFLOPS for the 740M. These are massive differences, but without benchmark scores, they remain theoretical. The database records no measured output for the N1X 48SM, so its actual performance cannot be verified or compared. The verdict for practical use, based strictly on the data, is that the Radeon 740M is the proven performer, while the N1X 48SM remains an unmeasured entry.

Architecture Differences

The two GPUs come from different manufacturers and different architectural generations. The AMD Radeon 740M uses the Phoenix2 chip with RDNA 3.0 architecture, part of the Navi III IGP (Phoenix) generation. It is built on a 4 nm process at TSMC with a transistor count of 20,900 million and a die size of 137 mm². The resulting transistor density is 152.6 million transistors per square millimeter.

The NVIDIA N1X 48SM uses the GB20B chip with Blackwell 2.0 architecture, part of the Blackwell IGP (N1x) generation. It is built on a 5 nm process at TSMC, with a die size of 382 mm². The transistor count is listed as unknown, and no transistor density figure is recorded. The N1X 48SM’s die is substantially larger than the 740M’s, at 382 mm² versus 137 mm², but the lack of a transistor count prevents any density comparison.

Both parts are integrated graphics processors (IGPs), but their architectural feature sets diverge. The 740M includes 4 ray tracing cores and no tensor cores. The N1X 48SM includes 48 ray tracing cores and 192 tensor cores. The API support also differs sharply. The 740M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists DirectX as N/A, OpenGL as N/A, and Vulkan as N/A. The NVIDIA part’s API status is recorded as not applicable, which means its software interface is not defined in the database.

The shading unit count difference is the most pronounced architectural gap. The N1X 48SM has 6144 shading units, which is 24 times the 740M’s 256. The 740M’s texture rate is 44.80 GTexel/s and pixel rate is 22.40 GPixel/s. The N1X 48SM’s texture rate is 900.9 GTexel/s and pixel rate is 112.6 GPixel/s. The 740M’s FP16 throughput matches its FP32 at 2.867 TFLOPS (1:1), and the N1X 48SM likewise shows FP16 equal to FP32 at 28.83 TFLOPS (1:1). The N1X 48SM’s ray tracing core count of 48 is also 12 times the 740M’s 4.

Specification Differences

The specification table shows clear divergences in nearly every measurable field. The process nodes differ: 4 nm for AMD versus 5 nm for NVIDIA. The 740M has a known transistor count of 20,900 million; the N1X 48SM’s is unknown. Die sizes are 137 mm² and 382 mm² respectively.

Clock speeds show the 740M with a base of 800 MHz and boost of 2800 MHz. The N1X 48SM runs a base of 741 MHz and boost of 2346 MHz. The 740M’s memory is System Shared with type System Shared, bus width System Shared, and bandwidth System Dependent. The N1X 48SM has 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth, and its memory clock is listed as 1067 MHz with 8.5 Gbps effective.

The compute units differ as noted: 256 shading units versus 6144, 16 TMUs versus 384, 8 ROPs versus 48, 4 RT cores versus 48, and no tensor cores versus 192. Pixel rate is 22.40 GPixel/s versus 112.6 GPixel/s. Texture rate is 44.80 GTexel/s versus 900.9 GTexel/s. FP32 is 2.867 TFLOPS versus 28.83 TFLOPS.

Power characteristics show the 740M with a TDP of 45 W, while the N1X 48SM’s TDP is unknown. Both are IGP slot width with no power connectors. The bus interface differs: PCIe 4.0 x8 for the 740M, PCIe 5.0 x16 for the N1X 48SM. Display outputs are Motherboard Dependent for the 740M and 1x HDMI for the N1X 48SM. Release dates differ: 2024-01-30 for the 740M and 2026-05-31 for the N1X 48SM. The 740M has a predecessor listed as Navi II IGP and a successor as Navi III IGP; the N1X 48SM has neither.

FAQ

Q: Which GPU has a higher recorded average benchmark score?

A: The AMD Radeon 740M has an average benchmark score of 12870. The NVIDIA N1X 48SM has an average benchmark score of 0, as no benchmarks are recorded for it.

Q: What is the Vulkan performance of the AMD Radeon 740M?

A: The Radeon 740M scores 15568 in Geekbench Vulkan, which is 5396 points higher than its Geekbench OpenCL score of 10172.

Q: How does the AMD Radeon 740M compare to its nearest rivals?

A: The 740M’s average score of 12870 is 0.2% above the AMD FirePro W5100 (12847), 0.3% above the AMD Radeon Pro 455 (12831), and 0.3% above the NVIDIA GeForce GTX 590 (12830). It is 0.4% below the AMD Radeon RX 580 (12928).

Q: Does the NVIDIA N1X 48SM have any benchmark results in the database?

A: No. The N1X 48SM has an empty benchmark list, an average score of 0, and no nearest rivals recorded.

Q: What are the memory specifications for each GPU?

A: The Radeon 740M uses System Shared memory with System Shared type, bus width, and System Dependent bandwidth. The N1X 48SM uses 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth.

Q: What is the FP32 compute throughput for each part?

A: The Radeon 740M delivers 2.867 TFLOPS FP32. The N1X 48SM delivers 28.83 TFLOPS FP32.

Where Each One Wins

The AMD Radeon 740M wins in every category that has recorded data. It has benchmark scores, an average score of 12870, a 53rd percentile ranking, and measurable API-specific performance. Its OpenCL score of 10172 and Vulkan score of 15568 provide concrete evidence of its capabilities. Its nearest rival comparisons show it holding its own against older discrete cards like the GeForce GTX 590 and Radeon RX 580 within a single percentage point.

The NVIDIA N1X 48SM wins in raw specification counts. It has more shading units, more TMUs, more ROPs, more ray tracing cores, and it has tensor cores where the 740M has none. Its FP32 throughput is 28.83 TFLOPS, approximately ten times the 740M’s 2.867 TFLOPS. Its memory subsystem is explicit: 128 GB of LPDDR5X at 273.2 GB/s, versus the 740M’s system-shared memory with dependent bandwidth. Its bus interface is PCIe 5.0 x16 versus PCIe 4.0 x8. Its die size is 382 mm² versus 137 mm².

For use cases that rely on measured performance, the Radeon 740M is the only option with evidence. For use cases that depend on theoretical compute resources, the N1X 48SM’s specifications suggest a far higher ceiling, but the database contains no results to confirm that suggestion. The data shows one part with a performance footprint and one part with specifications only.