AMD Radeon 680M vs NVIDIA N1X 48SM Comparison

Where Each One Wins

The recorded data presents an unusual comparison. The AMD Radeon 680M has three benchmark entries, while the NVIDIA N1X 48SM has none. This means the head-to-head benchmark table is empty, and neither item records a win in direct competition. The Radeon 680M shows an average benchmark score of 15270 across its tested workloads, placing it in the 57th percentile of all GPUs. The N1X 48SM, by contrast, has an average benchmark score of 0 and sits in the 50th percentile, which indicates a lack of measured performance data rather than a literal score of zero.

The Radeon 680M delivers measurable results in three distinct tests. In 3DMark Steel Nomad DX12, it scores 378. In Geekbench OpenCL, it scores 23468. In Geekbench Vulkan, it scores 21965. These numbers establish a baseline for its compute and graphics capabilities. The N1X 48SM has no such entries, so the data cannot confirm where it wins or loses. The absence of benchmarks for the N1X 48SM means the database currently offers no evidence of its performance in any workload.

The use-case split therefore rests entirely on the Radeon 680M's recorded results. Its Geekbench OpenCL score of 23468 and Vulkan score of 21965 suggest competent general-purpose compute and API-level graphics execution. The 3DMark Steel Nomad DX12 score of 378 is a lower absolute number, but that test measures specific DX12 rendering workloads. The N1X 48SM's architecture and specifications imply potential, but without benchmark data, any claim about its wins would be speculation. The database records zero wins for each side in direct head-to-head testing, so the honest assessment is that the Radeon 680M has demonstrable results while the N1X 48SM does not.

Architecture Differences

The two GPUs diverge sharply at the architectural level. The AMD Radeon 680M uses the Rembrandt+ chip built on RDNA 2.0 architecture, belonging to the Navi II IGP generation with a Rembrandt Mobile variant. It is fabricated on a 6 nm process at TSMC, with a die size of 208 mm² and 13,100 million transistors. This yields a transistor density of 63.0 million per mm². The NVIDIA N1X 48SM uses the GB20B chip based on Blackwell 2.0 architecture, part of the Blackwell IGP (N1x) generation. It is built on a 5 nm process, also at TSMC, with a larger die size of 382 mm². Its transistor count is listed as unknown, and no transistor density figure appears in the data.

The compute resources differ significantly. The Radeon 680M houses 768 shading units, 48 texture mapping units, 32 ROPs, and 12 ray tracing cores. It has no tensor cores. The N1X 48SM contains 6144 shading units, 384 TMUs, 48 ROPs, 48 ray tracing cores, and 192 tensor cores. This represents a substantial increase in every compute category. The FP32 throughput tells the same story: the Radeon 680M delivers 3.379 TFLOPS, while the N1X 48SM delivers 28.83 TFLOPS. FP16 performance also differs, with the Radeon 680M at 6.758 TFLOPS using a 2:1 ratio and the N1X 48SM at 28.83 TFLOPS using a 1:1 ratio.

Memory configurations are entirely different. The Radeon 680M uses system-shared memory, with size, type, bus width, and bandwidth all dependent on the host system. The N1X 48SM has dedicated memory: 128 GB of LPDDR5X on a 256-bit bus, providing 273.2 GB/s of bandwidth. Its memory clock is listed at 1067 MHz, or 8.5 Gbps effective. The Radeon 680M's clock speeds are higher at base, with 2000 MHz base and 2200 MHz boost, while the N1X 48SM starts at 741 MHz base and boosts to 2346 MHz.

The bus interface also differs. The Radeon 680M uses PCIe 4.0 x8, while the N1X 48SM uses PCIe 5.0 x16. Display outputs vary as well, with the Radeon 680M having portable-device-dependent outputs and the N1X 48SM having a single HDMI port. API support diverges completely: the Radeon 680M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 48SM lists N/A for DirectX, OpenGL, and Vulkan. Both are integrated graphics processors with no power connectors and a slot width of IGP. The Radeon 680M has a TDP of 50 W, while the N1X 48SM's TDP is unknown.

The Verdict

The data supports only one clear conclusion: the AMD Radeon 680M is the only one of the two with verified performance results. Its average benchmark score of 15270 places it in the 57th percentile of all GPUs, and its nearest rivals include the NVIDIA GeForce GTX 580 with an average score of 15283, the NVIDIA GeForce RTX 2060 at 15290, the NVIDIA GeForce RTX 3050 OEM at 15199, and the AMD Radeon RX 7600 at 15171. The delta percentages against these rivals are minimal: the Radeon 680M trails the GTX 580 by 0.1%, trails the RTX 2060 by 0.1%, leads the RTX 3050 OEM by 0.5%, and leads the RX 7600 by 0.7%. This indicates performance that is essentially on par with those desktop-class GPUs from earlier generations.

The NVIDIA N1X 48SM, despite its impressive specifications, has no benchmark scores and no nearest rivals in the database. Its 50th percentile placement appears to be a placeholder rather than a measured result. From the recorded data alone, the N1X 48SM cannot be recommended for any workload because there is no evidence of its actual performance. The Radeon 680M, however, demonstrates concrete results across OpenCL, Vulkan, and DX12 tests.

For users seeking a GPU with documented performance, the Radeon 680M is the only option with data. Its scores place it in the middle of the GPU distribution, competitive with several discrete NVIDIA and AMD cards from previous generations. The N1X 48SM presents an intriguing specification sheet, with 6144 shading units, 192 tensor cores, and 128 GB of LPDDR5X memory, but the database contains no measurements to confirm how those specifications translate into real-world results. The verdict from the data is straightforward: choose the Radeon 680M for verified performance, and treat the N1X 48SM as an unmeasured entity.

FAQ

Q: What is the average benchmark score for the AMD Radeon 680M?

A: The AMD Radeon 680M has an average benchmark score of 15270, placing it in the 57th percentile of all GPUs.

Q: Does the NVIDIA N1X 48SM have any recorded benchmark scores?

A: No, the NVIDIA N1X 48SM has an empty benchmarks list and an average benchmark score of 0.

Q: How does the Radeon 680M compare to its nearest rivals?

A: The Radeon 680M trails the NVIDIA GeForce GTX 580 by 0.1% and the NVIDIA GeForce RTX 2060 by 0.1%, while leading the NVIDIA GeForce RTX 3050 OEM by 0.5% and the AMD Radeon RX 7600 by 0.7%.

Q: What are the FP32 performance figures for both GPUs?

A: The AMD Radeon 680M delivers 3.379 TFLOPS of FP32 performance, while the NVIDIA N1X 48SM delivers 28.83 TFLOPS.

Q: What memory configuration does the NVIDIA N1X 48SM use?

A: The NVIDIA N1X 48SM uses 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth.

Q: Which GPU has ray tracing cores?

A: Both GPUs have ray tracing cores. The AMD Radeon 680M has 12, and the NVIDIA N1X 48SM has 48.

Head-to-Head Benchmarks

The head-to-head benchmark table in the database is empty, meaning there are no direct comparative scores between the AMD Radeon 680M and the NVIDIA N1X 48SM. The wins counter shows 0 for both sides. This absence of direct data requires a different approach: examining each GPU's individual recorded metrics.

The Radeon 680M's three benchmark scores provide the only concrete performance data in this comparison. Its Geekbench OpenCL score of 23468 is its highest recorded result, followed by Geekbench Vulkan at 21965. The 3DMark Steel Nomad DX12 score of 378 is considerably lower in absolute terms, but this reflects the specific nature of that test rather than overall capability. The N1X 48SM has no scores to compare against these figures.

Turning to specifications, the N1X 48SM shows massive theoretical advantages. Its FP32 throughput of 28.83 TFLOPS is roughly 8.5 times the Radeon 680M's 3.379 TFLOPS. Its texture rate of 900.9 GTexel/s far exceeds the Radeon 680M's 105.6 GTexel/s. Pixel rates also favor the N1X 48SM, with 112.6 GPixel/s versus 70.40 GPixel/s. The N1X 48SM's 128 GB of LPDDR5X memory with 273.2 GB/s bandwidth stands against the Radeon 680M's system-shared memory, which has bandwidth described only as system dependent.

The Radeon 680M counters with higher base and boost clocks, at 2000 MHz and 2200 MHz respectively, compared to the N1X 48SM's 741 MHz base and 2346 MHz boost. The Radeon 680M also has a smaller die at 208 mm² versus 382 mm², and a lower TDP at 50 W versus the N1X 48SM's unknown TDP. The bus interface favors the N1X 48SM, which uses PCIe 5.0 x16 compared to the Radeon 680M's PCIe 4.0 x8.

The closest available comparison comes from the Radeon 680M's nearest rivals. Its average score of 15270 sits within 0.7% of the AMD Radeon RX 7600's 15171, within 0.5% of the NVIDIA GeForce RTX 3050 OEM's 15199, and within 0.1% of both the GTX 580's 15283 and RTX 2060's 15290. These margins are so narrow that the Radeon 680M effectively performs at parity with those discrete cards. The N1X 48SM has no such reference points in the database.

Specification Differences

The specification sheets for these two GPUs differ in nearly every measurable field. The process node shows a 6 nm process for the AMD Radeon 680M and a 5 nm process for the NVIDIA N1X 48SM, both at TSMC. Die size varies from 208 mm² for the Radeon 680M to 382 mm² for the N1X 48SM. The Radeon 680M lists 13,100 million transistors with a density of 63.0 million per mm², while the N1X 48SM's transistor count is unknown and density is not provided.

Clock speeds are reversed in character. The Radeon 680M has a base clock of 2000 MHz and a boost clock of 2200 MHz. The N1X 48SM has a base clock of 741 MHz and a boost clock of 2346 MHz. Memory clocks also differ, with the Radeon 680M using system-shared memory and the N1X 48SM running at 1067 MHz with 8.5 Gbps effective speed.

Memory capacity and type show the starkest contrast. The Radeon 680M uses system-shared memory with no fixed size, type, bus width, or bandwidth. The N1X 48SM has 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth. The Radeon 680M's shading units number 768, while the N1X 48SM has 6144. Texture mapping units stand at 48 versus 384. ROPs are 32 versus 48. Ray tracing cores are 12 versus 48. Tensor cores are absent on the Radeon 680M but present at 192 on the N1X 48SM.

Pixel rate and texture rate both favor the N1X 48SM. The Radeon 680M produces 70.40 GPixel/s and 105.6 GTexel/s, while the N1X 48SM produces 112.6 GPixel/s and 900.9 GTexel/s. FP32 and FP16 performance also favor the N1X 48SM, with 28.83 TFLOPS in both cases. The Radeon 680M delivers 3.379 TFLOPS FP32 and 6.758 TFLOPS FP16 using a 2:1 ratio, while the N1X 48SM uses a 1:1 ratio.

Power and connectivity differ as well. The Radeon 680M has a TDP of 50 W, while the N1X 48SM's TDP is unknown. Both are IGP slot width with no power connectors. The bus interface is PCIe 4.0 x8 for the Radeon 680M and PCIe 5.0 x16 for the N1X 48SM. Display outputs are portable-device dependent for the Radeon 680M and a single HDMI for the N1X 48SM. API support shows the Radeon 680M with DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the N1X 48SM lists N/A for all three. Release dates differ by over three years, with the Radeon 680M released on 2023-01-02 and the N1X 48SM on 2026-05-31.