NVIDIA GeForce RTX 4070 AD103 vs NVIDIA GeForce RTX 5080 Mobile Comparison

Head-to-Head Benchmarks

The RTX 5080 Mobile is the only part in this comparison with recorded benchmark scores in the database. It holds an 81st percentile rank across all GPUs, while the RTX 4070 AD103 sits at the 50th percentile with an average benchmark score of zero, meaning no direct head-to-head results are available for the desktop card. The RTX 5080 Mobile posts an average benchmark score of 38,349 across all tests, placing it within 0.1% of the NVIDIA GeForce MX570 (38,299) and 0.6% ahead of the NVIDIA GeForce RTX 4080 Mobile (38,135). It trails the MX570 A by 0.9% (38,691) and the AMD Radeon Pro 580X by the same margin (38,706).

In specific workloads, the RTX 5080 Mobile delivers a 3DMark Steel Nomad DX12 score of 4,952. Its Geekbench compute results show 166,986 in OpenCL and 169,754 in Vulkan. PassMark scores cover a range of APIs: DirectX 9 at 314, DirectX 10 at 171, DirectX 11 at 253, DirectX 12 at 116, G2D at 1,095, G3D at 27,711, and GPU compute at 12,134. These numbers indicate that the mobile part is heavily optimized for modern graphics workloads, with DirectX 12 and compute tasks showing particular strength relative to legacy API performance.

The RTX 4070 AD103 has no recorded benchmarks, so its wins cannot be quantified. However, its architectural specifications suggest where it would compete: it offers 29.15 TFLOPS of FP32 performance, a 200 W TDP, and a boost clock of 2475 MHz. The RTX 5080 Mobile counters with 23.04 TFLOPS FP32, an 80 W TDP, and a 1500 MHz boost clock. Raw throughput favors the desktop part, but the mobile part's efficiency profile is dramatically better, delivering 23.04 TFLOPS at 80 W versus 29.15 TFLOPS at 200 W. That is a 2.5x power advantage in favor of the laptop chip.

FAQ

Q: Which GPU has the higher FP32 compute throughput?

A: The RTX 4070 AD103 delivers 29.15 TFLOPS, which is 26.5% higher than the RTX 5080 Mobile's 23.04 TFLOPS.

Q: What memory configuration does each GPU use?

A: The RTX 4070 AD103 uses 12 GB of GDDR6X on a 192-bit bus with 504.2 GB/s bandwidth. The RTX 5080 Mobile uses 16 GB of GDDR7 on a 256-bit bus with 896.0 GB/s bandwidth.

Q: How do the power requirements compare?

A: The RTX 4070 AD103 has a 200 W TDP and requires a 550 W suggested PSU with a single 16-pin connector. The RTX 5080 Mobile has an 80 W TDP, uses no power connectors, and lists no suggested PSU.

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

A: The RTX 5080 Mobile has 7,680 shading units and 60 RT cores. The RTX 4070 AD103 has 5,888 shading units and 46 RT cores. The mobile part leads by 1,792 shading units and 14 RT cores.

Q: What is the production status of each GPU?

A: The RTX 4070 AD103 is end-of-life, released on 2024-02-29. The RTX 5080 Mobile is active, released on 2025-04-01.

Q: How does the RTX 5080 Mobile compare to its closest rival, the RTX 4080 Mobile?

A: The RTX 5080 Mobile averages 38,349 in benchmarks, which is 0.6% ahead of the RTX 4080 Mobile's 38,135.

Architecture Differences

The two GPUs come from different architectural generations. The RTX 4070 AD103 uses Ada Lovelace, while the RTX 5080 Mobile uses Blackwell 2.0. Both are built on a 5 nm process at TSMC, with nearly identical transistor counts: 45,900 million for the desktop part and 45,600 million for the mobile part. Die sizes are also close at 379 mm² and 378 mm² respectively, yielding transistor densities of 121.1M per mm² and 120.6M per mm².

The RT cores and tensor cores differ significantly. The RTX 4070 AD103 has 46 RT cores and 184 tensor cores. The RTX 5080 Mobile has 60 RT cores and 240 tensor cores. This 30.4% increase in RT cores and 30.4% increase in tensor cores suggests the mobile part is designed to handle ray tracing and AI workloads more aggressively, despite its lower overall FP32 throughput.

The memory subsystems reflect a generational leap. The RTX 4070 AD103 uses GDDR6X at 21 Gbps effective, while the RTX 5080 Mobile uses GDDR7 at 28 Gbps effective. The mobile part's memory bus is wider at 256 bits versus 192 bits, and its bandwidth of 896.0 GB/s is 77.7% higher than the desktop card's 504.2 GB/s. This memory advantage likely compensates for the lower compute throughput in bandwidth-sensitive tasks.

The pixel and texture rates tell a mixed story. The RTX 4070 AD103 achieves 158.4 GPixel/s and 455.4 GTexel/s. The RTX 5080 Mobile achieves 144.0 GPixel/s and 360.0 GTexel/s. The desktop part leads by 10.0% in pixel rate and 26.5% in texture rate, consistent with its higher clock speeds and FP32 output.

Specification Differences

The RTX 4070 AD103 and RTX 5080 Mobile differ across nearly every major specification field. Clock speeds show the desktop part running at 1920 MHz base and 2475 MHz boost, while the mobile part runs at 975 MHz base and 1500 MHz boost. The memory clock differs as well: 1313 MHz (21 Gbps effective) for the desktop, 1750 MHz (28 Gbps effective) for the mobile.

Memory capacity and type differ: 12 GB GDDR6X versus 16 GB GDDR7. Bus width increases from 192 bits to 256 bits. Bandwidth jumps from 504.2 GB/s to 896.0 GB/s. Shading units rise from 5,888 to 7,680. TMUs increase from 184 to 240. ROPs increase from 64 to 96. RT cores rise from 46 to 60. Tensor cores rise from 184 to 240.

Power and physical specifications diverge sharply. The RTX 4070 AD103 has a 200 W TDP, dual-slot cooling, a 16-pin power connector, and a 550 W suggested PSU. It measures 240 mm by 110 mm by 40 mm. The RTX 5080 Mobile has an 80 W TDP, is classified as IGP (integrated graphics processor), uses no power connectors, and lists no dimensions or suggested PSU. The bus interface advances from PCIe 4.0 x16 to PCIe 5.0 x16. Display outputs differ: the desktop card offers 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the mobile part's outputs are portable device dependent.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 4070 AD103 is end-of-life with a launch MSRP of 599 USD. The RTX 5080 Mobile is active with no listed launch MSRP.

Where Each One Wins

The RTX 4070 AD103 wins on raw compute and rendering throughput. Its 29.15 TFLOPS FP32, 455.4 GTexel/s texture rate, and 158.4 GPixel/s pixel rate all exceed the mobile part's figures. It also has higher clock speeds across the board, with a 2475 MHz boost versus 1500 MHz. This makes it the stronger choice for desktop workloads where sustained performance and power draw are not constraints. Its 200 W TDP and dual-slot cooler indicate it is built for stationary systems with adequate cooling and power delivery.

The RTX 5080 Mobile wins on memory capacity, bandwidth, and efficiency. Its 16 GB GDDR7 memory with 896.0 GB/s bandwidth is 33.3% larger and 77.7% faster than the desktop card's 12 GB GDDR6X. It also has more shading units (7,680 versus 5,888), more RT cores (60 versus 46), more tensor cores (240 versus 184), and more ROPs (96 versus 64). Its 80 W TDP is 60% lower than the desktop part, making it suitable for thin laptops with no discrete power connectors. The PCIe 5.0 x16 interface provides double the bandwidth of PCIe 4.0 x16.

The benchmark data supports the mobile part's positioning. Its 81st percentile rank and 38,349 average score place it among stronger GPUs, with its nearest rivals being the MX570, RTX 4080 Mobile, MX570 A, and Radeon Pro 580X, all within 0.9% of its score. The desktop card has no recorded benchmarks, so its competitive position cannot be assessed from the database.

The Verdict

The recorded data shows the RTX 5080 Mobile as the only part with measurable performance. It delivers a 38,349 average benchmark score, ranks in the 81st percentile, and sits within 0.9% of four closely matched rivals. Its architecture provides more shading units, RT cores, tensor cores, and memory bandwidth than the RTX 4070 AD103, despite a 60% lower TDP. This combination of efficiency and feature count makes it the appropriate choice for mobile systems where power draw is limited and modern API workloads dominate.

The RTX 4070 AD103, with no benchmark scores in the database, cannot be directly compared on measured performance. Its specifications indicate it holds advantages in FP32 throughput, texture rate, pixel rate, and clock speeds. Its 200 W TDP, dual-slot design, and 16-pin connector make it a desktop-oriented part. For users prioritizing raw compute density and rendering throughput in a stationary chassis, the desktop card's specifications are stronger. For users needing portability, higher memory capacity, faster memory bandwidth, and lower power draw, the RTX 5080 Mobile is the data-backed selection.

The verdict from the database is clear: the RTX 5080 Mobile is the measured performer, while the RTX 4070 AD103 is a specification-only candidate. Each serves a distinct hardware segment, and the choice depends entirely on whether the workload is desktop-bound or mobile-bound.