AMD Radeon 740M vs NVIDIA Rubin GPU Comparison

Head-to-Head Benchmarks

The recorded data contains no direct head-to-head benchmark comparisons between the AMD Radeon 740M and the NVIDIA Rubin GPU. The database currently lists zero wins for either part in shared test suites. This absence is expected given the radically different positioning of the two products: the Radeon 740M is a mobile integrated graphics processor, while the Rubin GPU is a server-class accelerator with no published benchmark entries.

The Radeon 740M does have standalone measurements in the database. Its Geekbench OpenCL score is 10,172, and its Geekbench Vulkan score is 15,568. These produce an average benchmark score of 12,870. The Rubin GPU, by contrast, has an average benchmark score of 0, as no workload results have been recorded for it. The Rubin's percentile versus all GPUs is 50, while the Radeon 740M sits at the 53rd percentile. These percentile values are close, but the underlying data pools are not comparable: one reflects actual measured workloads, the other reflects an absence of measurements.

The Radeon 740M's nearest rivals in the database provide context for its measured performance. The AMD Radeon RX 580 is 0.4% ahead of the 740M in average score, a margin of 58 points. The AMD FirePro W5100 trails by 0.2%, the AMD Radeon Pro 455 trails by 0.3%, and the NVIDIA GeForce GTX 590 also trails by 0.3%. All four rival parts sit within a 0.7 percentage point band around the 740M's average. The 740M therefore occupies a tightly contested performance tier, with no single rival holding a decisive lead. The Rubin GPU has no nearest rivals listed, so no comparable competitive positioning can be established.

Because the head-to-head table is empty, the analysis must rely on architectural specifications and the measured workload results available for the 740M. The Rubin GPU's performance envelope can only be inferred from its declared compute capabilities and memory subsystem, not from direct benchmark output.

Architecture Differences

The two processors share a common foundry but diverge on nearly every architectural decision. Both are built by TSMC, but the Radeon 740M uses a 4 nm process while the Rubin GPU uses a 3 nm node. The Radeon 740M is built on the Phoenix2 chip with RDNA 3.0 architecture, belonging to the Navi III IGP generation. The Rubin GPU uses the GR100 chip with the Rubin architecture, belonging to the Server Rubin generation.

Transistor counts reveal the scale gap. The Radeon 740M integrates 20,900 million transistors on a 137 mm² die, yielding a transistor density of 152.6 million per square millimeter. The Rubin GPU packs 336,000 million transistors across a 1,456 mm² die, with a density of 230.8 million per square millimeter. The Rubin GPU has roughly 16 times the transistor count and a die more than ten times larger, while also achieving a 51% higher transistor density.

Compute resources differ by orders of magnitude. The Radeon 740M has 256 shading units, 16 texture mapping units, 8 ROPs, and 4 ray tracing cores. The Rubin GPU has 28,672 shading units, 896 TMUs, and 24 ROPs, with no dedicated ray tracing core count listed. The Rubin GPU also carries 896 tensor cores, a feature class absent from the 740M's specification. The FP32 throughput reflects this gap: the 740M delivers 2.867 TFLOPS, while the Rubin GPU delivers 130.0 TFLOPS. FP16 performance shows a different ratio, with the 740M at 2.867 TFLOPS (1:1 ratio) and the Rubin GPU at 260.0 TFLOPS (2:1 ratio), meaning the Rubin's FP16 rate is double its FP32 rate while the 740M's is identical.

Memory architecture is fundamentally different. The 740M uses system shared memory with a system dependent bandwidth and no dedicated VRAM size, bus width, or memory type. The Rubin GPU uses 288 GB of HBM4 memory on a 16,384-bit bus, delivering 22.1 TB/s of bandwidth. Its memory clock is listed at 2,695 MHz, which corresponds to 10.8 Gbps effective. Pixel and texture rates scale accordingly: the 740M produces 22.40 GPixel/s and 44.80 GTexel/s, while the Rubin GPU produces 54.41 GPixel/s and 2,031.2 GTexel/s.

Clock behavior also differs. The 740M has an 800 MHz base clock and a 2,800 MHz boost clock. The Rubin GPU has a 700 MHz base clock and a 2,267 MHz boost clock. The 740M's boost clock is 533 MHz higher, despite its far lower absolute compute throughput. Power envelopes reflect the class distinction: the 740M is rated at 45 W TDP with no power connectors, while the Rubin GPU is rated at 2,300 W TDP with a suggested power supply of 2,700 W.

Bus interfaces and physical formats differ completely. The 740M is an IGP with a PCIe 4.0 x8 interface, motherboard dependent display outputs, and no slot width beyond its integrated nature. The Rubin GPU is an SXM module with a PCIe 6.0 x16 interface and no display outputs. API support also diverges: the 740M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Rubin GPU lists N/A for DirectX, OpenGL, and Vulkan, reflecting its server orientation with no graphics API stack.

Where Each One Wins

The Radeon 740M wins in integrated deployment scenarios. Its 45 W TDP, IGP form factor, and reliance on system memory make it suitable for compact systems without discrete power delivery. Its PCIe 4.0 x8 interface and motherboard dependent display outputs further indicate a part designed for conventional client platforms. The 740M's measured Geekbench Vulkan score of 15,568 is substantially higher than its OpenCL score of 10,172, suggesting stronger performance in graphics oriented workloads. Its 53rd percentile ranking places it in the middle of the database's GPU population. The 740M also supports modern graphics APIs, including DirectX 12 Ultimate and Vulkan 1.4, which the Rubin GPU does not.

The Rubin GPU wins in raw compute and memory bandwidth. Its 130.0 TFLOPS FP32 and 260.0 TFLOPS FP16 figures dwarf the 740M's 2.867 TFLOPS in both precisions. Its 22.1 TB/s memory bandwidth, 288 GB HBM4 capacity, and 16,384-bit bus are in a different class entirely from the 740M's system shared memory. The 896 tensor cores give the Rubin GPU a dedicated matrix math capability that the 740M lacks entirely. The 2,031.2 GTexel/s texture rate and 54.41 GPixel/s pixel rate are likewise far beyond the 740M's 44.80 GTexel/s and 22.40 GPixel/s.

The production status of both parts is listed as Active. The Radeon 740M was released on 2024-01-30, while the Rubin GPU's release date is 2025-12-31. The 740M's predecessor is listed as Navi II IGP and its successor as Navi III IGP. The Rubin GPU's predecessor is Server Blackwell, with no successor listed.

FAQ

Q: How does the AMD Radeon 740M perform in the database's benchmark tests?

A: The 740M scores 10,172 in Geekbench OpenCL and 15,568 in Geekbench Vulkan, with an average benchmark score of 12,870. It sits at the 53rd percentile of all GPUs in the database.

Q: Does the NVIDIA Rubin GPU have any recorded benchmark results?

A: No. The database lists no benchmarks for the Rubin GPU, giving it an average benchmark score of 0 and a 50th percentile ranking.

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

A: The AMD Radeon RX 580 is 0.4% ahead of the 740M. The AMD FirePro W5100, AMD Radeon Pro 455, and NVIDIA GeForce GTX 590 each trail by 0.2% to 0.3%. All four rivals are within 58 points of the 740M's average score.

Q: Which GPU has higher clock speeds?

A: The Radeon 740M has an 800 MHz base clock and 2,800 MHz boost clock. The Rubin GPU has a 700 MHz base clock and 2,267 MHz boost clock, making the 740M's boost clock 533 MHz higher.

Q: What memory configuration does each GPU use?

A: The Radeon 740M uses system shared memory with system dependent bandwidth. The Rubin GPU uses 288 GB of HBM4 memory on a 16,384-bit bus with 22.1 TB/s bandwidth.

Q: What is the power consumption difference between the two?

A: The Radeon 740M has a 45 W TDP and no power connectors. The Rubin GPU has a 2,300 W TDP and a suggested power supply of 2,700 W.

Specification Differences

| Specification | AMD Radeon 740M | NVIDIA Rubin GPU |

|---|---|---|

| Chip | Phoenix2 | GR100 |

| Architecture | RDNA 3.0 | Rubin |

| Generation | Navi III IGP (Phoenix) | Server Rubin (Rxx) |

| Process Node | 4 nm | 3 nm |

| Foundry | TSMC | TSMC |

| Transistors | 20,900 million | 336,000 million |

| Die Size | 137 mm² | 1456 mm² |

| Transistor Density | 152.6M / mm² | 230.8M / mm² |

| Base Clock | 800 MHz | 700 MHz |

| Boost Clock | 2800 MHz | 2267 MHz |

| Memory Size | System Shared | 288 GB |

| Memory Type | System Shared | HBM4 |

| Memory Bus Width | System Shared | 16384 bit |

| Memory Bandwidth | System Dependent | 22.1 TB/s |

| Memory Clock | System Shared | 2695 MHz (10.8 Gbps effective) |

| Shading Units | 256 | 28672 |

| TMUs | 16 | 896 |

| ROPs | 8 | 24 |

| RT Cores | 4 | null |

| Tensor Cores | null | 896 |

| Pixel Rate | 22.40 GPixel/s | 54.41 GPixel/s |

| Texture Rate | 44.80 GTexel/s | 2,031.2 GTexel/s |

| FP32 | 2.867 TFLOPS | 130.0 TFLOPS |

| FP16 | 2.867 TFLOPS (1:1) | 260.0 TFLOPS (2:1) |

| TDP | 45 W | 2300 W |

| Slot Width | IGP | SXM Module |

| Power Connectors | None | null |

| Suggested PSU | null | 2700 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 6.0 x16 |

| Display Outputs | Motherboard Dependent | No outputs |

| DirectX | 12 Ultimate (12_2) | N/A |

| OpenGL | 4.6 | N/A |

| Vulkan | 1.4 | N/A |

| Release Date | 2024-01-30 | 2025-12-31 |

| Predecessor | Navi II IGP | Server Blackwell |

| Successor | Navi III IGP | null |