NVIDIA GeForce RTX 4080 Mobile vs NVIDIA GeForce RTX 5070 Ti Mobile Comparison

The NVIDIA GeForce RTX 4080 Mobile and the NVIDIA GeForce RTX 5070 Ti Mobile represent two distinct generations of laptop graphics, separated by over two years of architectural evolution. The data shows a clear overall winner in raw performance, but the newer card introduces significant efficiency and API-level advancements that complicate the picture. This analysis breaks down the benchmark results, architectural differences, and specification changes to determine which GPU holds the edge in various scenarios.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 4080 Mobile leads with an average benchmark score of 38,135, compared to 35,435 for the RTX 5070 Ti Mobile. This places the 4080 in the 81st percentile of all GPUs, while the 5070 Ti sits just behind in the 80th percentile.

Q: How much faster is the RTX 4080 Mobile in OpenCL compute workloads?

A: The RTX 4080 Mobile scores 159,575 in Geekbench OpenCL, which is 10.9% higher than the 143,870 achieved by the RTX 5070 Ti Mobile. This is one of the largest performance gaps between the two cards.

Q: Does the RTX 5070 Ti Mobile win any benchmark tests?

A: Yes, the newer card wins two tests. It scores 102 in Passmark DirectX 12 (vs 96 for the 4080, a 5.9% lead) and 981 in Passmark G2D (vs 929, a 5.3% lead). These wins are in specific API and 2D workloads rather than general 3D rendering.

Q: What is the memory bandwidth difference between the two?

A: The RTX 5070 Ti Mobile has a substantial advantage with 672.0 GB/s of bandwidth, while the RTX 4080 Mobile offers 432.0 GB/s. Both use a 192-bit bus, but the 5070 Ti employs faster GDDR7 memory.

Q: How do the pixel and texture rates compare?

A: The RTX 4080 Mobile has higher rates in both categories, delivering 133.2 GPixel/s and 386.3 GTexel/s, while the RTX 5070 Ti Mobile achieves 115.8 GPixel/s and 266.2 GTexel/s respectively.

Q: What are the TDP values for each GPU?

A: The RTX 4080 Mobile has a TDP of 110 W, while the RTX 5070 Ti Mobile is significantly more power-efficient at 60 W. This is a major differentiation point for laptop designs.

Architecture Differences

The two GPUs are built on fundamentally different architectures. The RTX 4080 Mobile uses the AD104 chip based on Ada Lovelace architecture, manufactured by TSMC on a 5 nm process. The RTX 5070 Ti Mobile employs the GB205 chip with Blackwell 2.0 architecture, also on TSMC's 5 nm node. This process commonality means transistor density is similar, but the chip designs diverge sharply.

The RTX 4080 Mobile has a larger die at 294 mm² and packs 35,800 million transistors, while the RTX 5070 Ti Mobile's die is smaller at 263 mm² with 31,100 million transistors. Despite the older architecture, the 4080 Mobile has more raw compute resources: 7,424 shading units, 232 TMUs, 58 RT cores, and 232 tensor cores. The 5070 Ti Mobile counters with 5,888 shading units, 184 TMUs, 46 RT cores, and 184 tensor cores.

Clock speeds tell a similar story. The RTX 4080 Mobile runs at a base of 1290 MHz with a boost of 1665 MHz, while the RTX 5070 Ti Mobile operates at a much lower 847 MHz base and 1447 MHz boost. This clock deficit explains why the newer card, despite architectural improvements, falls behind in raw throughput. The FP32 performance is 24.72 TFLOPS for the 4080 Mobile versus 17.04 TFLOPS for the 5070 Ti Mobile.

Memory technology is where the newer card gains ground. The RTX 5070 Ti Mobile uses GDDR7 at 1750 MHz (28 Gbps effective), providing 672.0 GB/s bandwidth, whereas the RTX 4080 Mobile uses GDDR6 at 2250 MHz (18 Gbps effective) for 432.0 GB/s. Both have 12 GB capacity and an 80 ROP count. The bus interface also differs, with the 4080 Mobile on PCIe 4.0 x16 and the 5070 Ti Mobile on PCIe 5.0 x16.

Head-to-Head Benchmarks

The RTX 4080 Mobile dominates the benchmark suite, winning 7 of 9 tests. The most decisive victories come in compute-heavy workloads. In Geekbench OpenCL, the 4080 Mobile scores 159,575 against 143,870 for the 5070 Ti, a 10.9% advantage. Similarly, in Passmark GPU Compute, the 4080 Mobile leads with 11,191 versus 10,101, a 10.8% margin. These results suggest the older card's higher shader count and clock speeds translate directly into compute performance.

In DirectX 9, the gap is equally pronounced. The RTX 4080 Mobile scores 286 versus 259 for the 5070 Ti, a 10.4% difference. This legacy API test benefits from the 4080's higher texture rate of 386.3 GTexel/s. The Geekbench Vulkan test also favors the 4080 Mobile, with a score of 145,807 compared to 139,213, a 4.7% lead. This indicates the architectural maturity of Ada Lovelace still holds up in modern graphics APIs.

The 3D rendering tests show a narrower margin. In Passmark G3D, the 4080 Mobile scores 24,926 versus 24,004 for the 5070 Ti, a 3.8% advantage. The DirectX 10 and DirectX 11 tests both go to the 4080 Mobile with 4% and 3% leads respectively (157 vs 151 and 244 vs 237). These results, while favoring the older card, show that the Blackwell architecture is competitive in modern workloads.

The RTX 5070 Ti Mobile's two wins are notable for their specificity. In DirectX 12, it scores 102 versus 96 for the 4080 Mobile, a 5.9% advantage. This suggests the newer architecture has better optimization for modern graphics APIs. The G2D test also goes to the 5070 Ti, with 981 versus 929, a 5.3% lead. This 2D performance win could indicate better efficiency in desktop-style workloads.

Specification Differences

The specification sheets reveal stark contrasts between the two GPUs. The most obvious difference is in power consumption: the RTX 4080 Mobile has a TDP of 110 W, nearly double the 60 W of the RTX 5070 Ti Mobile. This efficiency gap is remarkable given the performance differential, suggesting the newer architecture achieves more work per watt.

Compute resources differ significantly. The RTX 4080 Mobile has 7,424 shading units, 232 TMUs, and 58 RT cores, while the RTX 5070 Ti Mobile offers 5,888 shading units, 184 TMUs, and 46 RT cores. The tensor core count also favors the 4080 Mobile at 232 versus 184. However, the 5070 Ti Mobile matches the 4080 Mobile in ROP count at 80 each.

Memory configuration is where the newer card pulls ahead. The RTX 5070 Ti Mobile uses GDDR7 with 672.0 GB/s bandwidth, compared to the RTX 4080 Mobile's GDDR6 with 432.0 GB/s. Both have 12 GB capacity and 192-bit bus width. The transistor counts differ as well: 35,800 million for the 4080 Mobile versus 31,100 million for the 5070 Ti Mobile, with die sizes of 294 mm² and 263 mm² respectively.

Clock speeds heavily favor the older GPU. The RTX 4080 Mobile boosts to 1665 MHz versus 1447 MHz for the 5070 Ti Mobile, with base clocks of 1290 MHz versus 847 MHz. This clock advantage drives the 4080's higher pixel rate (133.2 GPixel/s vs 115.8 GPixel/s) and texture rate (386.3 GTexel/s vs 266.2 GTexel/s). The bus interface also differs, with the 4080 Mobile on PCIe 4.0 x16 and the 5070 Ti on PCIe 5.0 x16.

The Verdict

The data clearly favors the NVIDIA GeForce RTX 4080 Mobile for overall performance. It wins 7 of 9 benchmarks, has a higher average score (38,135 vs 35,435), and holds a 1-percentile advantage (81st vs 80th). The 4080 Mobile's lead is particularly strong in compute workloads, where its higher clock speeds and additional shading units prove decisive. Users prioritizing raw frame rates in 3D rendering or compute-intensive tasks should choose the 4080 Mobile.

However, the RTX 5070 Ti Mobile is not without merit. Its 60 W TDP versus 110 W makes it significantly more power-efficient, which could translate to better battery life and thinner laptop designs. The 672.0 GB/s memory bandwidth is a substantial upgrade, and its DirectX 12 win suggests better modern API performance. The PCIe 5.0 interface also provides future-proofing for data transfer. Gamers focused on the latest DirectX 12 titles or users valuing efficiency and bandwidth might prefer the 5070 Ti Mobile.

The benchmark results indicate that the RTX 4080 Mobile remains the more powerful GPU overall, but the RTX 5070 Ti Mobile offers a compelling efficiency profile. For those who prioritize absolute performance, the 4080 Mobile is the clear choice. For those who value power efficiency and modern API support, the 5070 Ti Mobile presents a strong argument.

Where Each One Wins

The RTX 4080 Mobile dominates in most gaming and compute scenarios. Its higher FP32 performance (24.72 TFLOPS vs 17.04 TFLOPS) and faster clock speeds make it superior for traditional 3D rendering, as shown by its 3.8% lead in Passmark G3D. The 10.9% advantage in OpenCL and 10.8% in GPU Compute position it as the better choice for content creation, scientific computing, and any workload that leverages raw shader throughput. Its wins in DirectX 9, 10, and 11 also make it the safer bet for older game titles and legacy applications.

The RTX 5070 Ti Mobile wins in specific scenarios that highlight its architectural advantages. Its DirectX 12 score of 102 versus 96 suggests better performance in the most modern games that utilize DX12 features. The 5.3% win in G2D indicates superior 2D desktop performance, which can matter for productivity tasks. The substantial memory bandwidth advantage (672.0 GB/s vs 432.0 GB/s) could benefit texture-heavy workloads and high-resolution gaming, even if the current benchmarks don't fully reflect this. The 60 W TDP makes it the better option for ultraportable laptops where thermal management and battery life are critical.

For laptop buyers, the choice depends on priorities. The RTX 4080 Mobile wins on sheer performance and is the better option for gamers and creators who want maximum frame rates. The RTX 5070 Ti Mobile wins on efficiency and modern feature support, making it ideal for users who value portability and battery life without sacrificing too much performance. The benchmark data shows the 4080 Mobile as the overall winner, but the 5070 Ti Mobile's efficiency metrics make it a compelling alternative for specific use cases.