NVIDIA GeForce RTX 4090 D vs NVIDIA GeForce RTX 5070 Mobile Comparison

Where Each One Wins

The benchmark data splits these two GPUs into completely different performance classes. The NVIDIA GeForce RTX 4090 D wins every recorded head-to-head comparison, with a 2-0 sweep in the shared tests. The GeForce RTX 5070 Mobile has no wins in the direct comparisons, but it occupies a distinct position in the database as a mobile part with its own benchmark profile.

The RTX 4090 D dominates in compute-oriented workloads. In Geekbench OpenCL, it scores 278,621 against the RTX 5070 Mobile's 122,238, a 127.9% advantage. In Geekbench Vulkan, the margin is 111.1%, with 246,941 against 116,960. These are not close contests; the desktop card roughly doubles the mobile card's output in both APIs.

The RTX 5070 Mobile does not win any of the two shared tests, but its independent Passmark results show where a mobile GPU can still function. Its Passmark G3D score of 20,355 and G2D score of 896 indicate a usable graphics processor for laptop workloads. The DirectX 11 score of 192 and DirectX 9 score of 214 are modest figures, while the DirectX 12 score of 93 and DirectX 10 score of 129 are lower still. The GPU compute score of 8,279 suggests the mobile part handles compute tasks at a fraction of the desktop card's capability.

The use-case split is clear. The RTX 4090 D serves high-end desktop rendering, AI inference, and compute-heavy tasks where raw throughput matters. The RTX 5070 Mobile serves thin-and-light laptops where the 50 W power envelope and integrated form factor are the priorities, accepting far lower absolute performance.

Architecture Differences

The two GPUs come from different generations and use fundamentally different silicon. The RTX 4090 D uses the AD102 chip on the Ada Lovelace architecture, built on a 5 nm process at TSMC. It packs 76,300 million transistors on a 609 mm² die, giving a transistor density of 125.3M per mm². The RTX 5070 Mobile uses the GB206 chip on the Blackwell 2.0 architecture, also built on 5 nm at TSMC. Its transistor count is 21,900 million on a 181 mm² die, with a density of 121.0M per mm².

The die size difference is enormous: 609 mm² versus 181 mm². That is a 3.4x area advantage for the desktop part, which explains much of the performance gap. The transistor count difference is even larger at roughly 3.5x. Both chips share the same foundry and process node, so the density figures are similar, but the desktop silicon simply has far more hardware.

Core configurations diverge sharply. The RTX 4090 D has 14,592 shading units, 456 TMUs, and 176 ROPs. The RTX 5070 Mobile has 4,608 shading units, 144 TMUs, and 48 ROPs. That is a 3.2x difference in shading units and TMUs, and a 3.7x difference in ROPs. The RTX 4090 D carries 114 RT cores and 456 tensor cores, while the mobile part has 36 RT cores and 144 tensor cores.

Memory architecture also differs completely. The RTX 4090 D uses 24 GB of GDDR6X on a 384-bit bus, delivering 1.01 TB/s of bandwidth. The RTX 5070 Mobile uses 8 GB of GDDR7 on a 128-bit bus, delivering 384.0 GB/s. The bandwidth gap is 2.6x in favor of the desktop card. The memory type differs as well: GDDR6X versus GDDR7, reflecting the generational split.

Clock speeds tell another story. The RTX 4090 D runs at a 2280 MHz base and 2520 MHz boost. The RTX 5070 Mobile runs at 907 MHz base and 1425 MHz boost. The desktop card's boost clock is 77% higher than the mobile card's boost clock. The memory clocks also differ: 1313 MHz with 21 Gbps effective on the desktop versus 1500 MHz with 24 Gbps effective on the mobile part, though the wider bus on the desktop still wins on total bandwidth.

Power and physical design separate them further. The RTX 4090 D has a 425 W TDP, uses a triple-slot cooler, requires a 16-pin power connector, and suggests an 800 W PSU. The RTX 5070 Mobile has a 50 W TDP, is an IGP (integrated graphics processor) form factor, uses no power connectors, and lists no suggested PSU. The desktop card is 304 mm long, 137 mm tall, and 61 mm wide. The mobile part has no listed dimensions, as it is designed to be soldered into laptops.

The desktop card uses PCIe 4.0 x16, while the mobile part uses PCIe 5.0 x16. Display outputs differ as well: the RTX 4090 D has 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the RTX 5070 Mobile is marked as "Portable Device Dependent," meaning outputs vary by laptop design.

Head-to-Head Benchmarks

The two shared benchmarks in the database both go to the RTX 4090 D with triple-digit margins. In Geekbench OpenCL, the desktop card scores 278,621 against 122,238 for the mobile part. The delta is 127.9%, meaning the RTX 4090 D delivers more than double the OpenCL performance. This is the kind of gap expected when comparing a 425 W desktop GPU to a 50 W mobile GPU.

In Geekbench Vulkan, the RTX 4090 D scores 246,941 against 116,960. The delta is 111.1%, again more than double. The Vulkan gap is slightly smaller than the OpenCL gap, but both are decisive. The RTX 5070 Mobile's Vulkan score is 47.4% of the RTX 4090 D's OpenCL score, and its OpenCL score is 43.9% of the desktop's Vulkan score, showing the mobile part is roughly half as fast in both APIs regardless of cross-comparison.

The RTX 4090 D's average benchmark score of 178,050 places it in the 98th percentile among all GPUs in the database. Its nearest rivals include the NVIDIA RTX PRO 5000 Blackwell at 182,109 (2.2% ahead), the NVIDIA A100 SXM4 80 GB at 183,725 (3.1% ahead), the NVIDIA RTX 5000 Ada Generation at 184,664 (3.6% ahead), and the NVIDIA A100 SXM4 40 GB at 187,147 (4.9% ahead). All four rivals are within 5% of the RTX 4090 D, indicating the desktop card sits at the top of a very tight performance cluster.

The RTX 5070 Mobile's average benchmark score of 29,928 places it in the 75th percentile. Its nearest rivals are much closer in absolute terms: the NVIDIA GeForce RTX 3070 Ti at 29,945 (0.1% ahead), the NVIDIA GeForce RTX 2080 Ti at 29,783 (0.5% behind), the AMD Radeon RX 6800 at 30,095 (0.6% ahead), and the AMD Radeon RX 6700 at 30,433 (1.7% ahead). The mobile card sits in a cluster of previous-generation desktop GPUs, with all four rivals within 2% of its score. This indicates the RTX 5070 Mobile delivers performance comparable to the RTX 3070 Ti and RTX 2080 Ti desktop cards, despite being a 50 W mobile part.

The gap between the two GPUs is roughly 5.95x in average benchmark score (178,050 divided by 29,928). That is the headline number for any comparison: the RTX 4090 D is nearly six times faster on average across all recorded benchmarks.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 4090 D has an average benchmark score of 178,050, while the NVIDIA GeForce RTX 5070 Mobile has an average score of 29,928. The desktop card is approximately 5.95x higher.

Q: What is the largest single-benchmark margin between the two?

A: The largest margin is in Geekbench OpenCL, where the RTX 4090 D scores 278,621 against 122,238, a delta of 127.9%. The Geekbench Vulkan margin is 111.1%, with scores of 246,941 and 116,960.

Q: How does the RTX 5070 Mobile compare to its nearest rivals?

A: The RTX 5070 Mobile has an average score of 29,928, putting it within 2% of the NVIDIA GeForce RTX 3070 Ti (29,945, 0.1% ahead), the NVIDIA GeForce RTX 2080 Ti (29,783, 0.5% behind), the AMD Radeon RX 6800 (30,095, 0.6% ahead), and the AMD Radeon RX 6700 (30,433, 1.7% ahead).

Q: What are the memory specifications for each GPU?

A: The RTX 4090 D has 24 GB of GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth. The RTX 5070 Mobile has 8 GB of GDDR7 on a 128-bit bus with 384.0 GB/s bandwidth.

Q: What is the TDP difference between the two?

A: The RTX 4090 D has a 425 W TDP and requires an 800 W suggested PSU with a 16-pin power connector. The RTX 5070 Mobile has a 50 W TDP, uses no power connectors, and lists no suggested PSU.

Q: Which GPU has more shading units and RT cores?

A: The RTX 4090 D has 14,592 shading units and 114 RT cores. The RTX 5070 Mobile has 4,608 shading units and 36 RT cores.

Specification Differences

| Specification | NVIDIA GeForce RTX 4090 D | NVIDIA GeForce RTX 5070 Mobile |

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

| Architecture | Ada Lovelace | Blackwell 2.0 |

| Chip | AD102 | GB206 |

| Process Node | 5 nm | 5 nm |

| Transistors | 76,300 million | 21,900 million |

| Die Size | 609 mm² | 181 mm² |

| Transistor Density | 125.3M / mm² | 121.0M / mm² |

| Base Clock | 2280 MHz | 907 MHz |

| Boost Clock | 2520 MHz | 1425 MHz |

| Memory Size | 24 GB | 8 GB |

| Memory Type | GDDR6X | GDDR7 |

| Memory Bus Width | 384 bit | 128 bit |

| Memory Bandwidth | 1.01 TB/s | 384.0 GB/s |

| Memory Clock | 1313 MHz, 21 Gbps effective | 1500 MHz, 24 Gbps effective |

| Shading Units | 14,592 | 4,608 |

| TMUs | 456 | 144 |

| ROPs | 176 | 48 |

| RT Cores | 114 | 36 |

| Tensor Cores | 456 | 144 |

| Pixel Rate | 443.5 GPixel/s | 68.40 GPixel/s |

| Texture Rate | 1,149.1 GTexel/s | 205.2 GTexel/s |

| FP32 | 73.54 TFLOPS | 13.13 TFLOPS |

| FP16 | 73.54 TFLOPS (1:1) | 13.13 TFLOPS (1:1) |

| TDP | 425 W | 50 W |

| Slot Width | Triple-slot | IGP |

| Power Connectors | 1x 16-pin | None |

| Suggested PSU | 800 W | null |

| Bus Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |

| Display Outputs | 1x HDMI 2.1, 3x DisplayPort 1.4a | Portable Device Dependent |

| Dimensions | 304 mm x 137 mm x 61 mm | Not listed |

| Production Status | End-of-life | Active |

| Release Date | 2023-12-27 | 2025-04-14 |

| Launch MSRP | 1,599 USD | null |

The Verdict

The data supports a simple conclusion: the RTX 4090 D is a high-end desktop GPU for maximum compute throughput, while the RTX 5070 Mobile is a mobile GPU for laptops with a strict power budget.

Any workload that stresses raw GPU performance belongs to the RTX 4090 D. Its FP32 throughput of 73.54 TFLOPS is 5.6x the RTX 5070 Mobile's 13.13 TFLOPS. Its texture rate of 1,149.1 GTexel/s is 5.6x higher. Its pixel rate of 443.5 GPixel/s is 6.5x higher. Its memory bandwidth of 1.01 TB/s is 2.6x higher. The desktop card wins every shared benchmark by more than double, and its 98th percentile ranking among all GPUs reflects its position at the top of the performance hierarchy.

The RTX 5070 Mobile's case rests on efficiency and form factor. At 50 W, it uses 8.5x less power than the RTX 4090 D's 425 W. It is an IGP with no power connectors, designed to fit in laptops where the desktop card's triple-slot, 304 mm length, and 800 W PSU requirement are impossible. Its 75th percentile ranking and proximity to the RTX 3070 Ti (0.1% behind) and RTX 2080 Ti (0.5% ahead) show it delivers desktop-class performance from a previous generation in a mobile package. That is a meaningful achievement, but it does not change the performance hierarchy.

The choice between these GPUs is determined by the target system. A desktop workstation or high-end gaming rig should use the RTX 4090 D. A laptop that needs the best available mobile GPU should use the RTX 5070 Mobile. The recorded benchmark data shows no scenario where the mobile part outperforms the desktop part, but the mobile part exists for a different purpose: delivering usable GPU performance within a 50 W envelope. The RTX 4090 D was released on 2023-12-27 and is now end-of-life; the RTX 5070 Mobile was released on 2025-04-14 and is still active. The database records both as valid options in their respective categories, with the RTX 4090 D as the performance leader and the RTX 5070 Mobile as the mobile efficiency leader.