NVIDIA GeForce RTX 4070 Ti vs NVIDIA GeForce RTX 4080 Mobile Comparison

The NVIDIA GeForce RTX 4070 Ti and the NVIDIA GeForce RTX 4080 Mobile are both members of the GeForce 40-series family, built on the same AD104 chip and Ada Lovelace architecture. However, they are engineered for entirely different physical environments, and the recorded benchmark data reflects a clear performance hierarchy. The desktop RTX 4070 Ti is a dual-slot, 285 W add-in card, while the RTX 4080 Mobile is an integrated graphics processor (IGP) designed for portable devices, with a 110 W power envelope. The data shows that the desktop part wins every single head-to-head comparison in the database, yet the mobile part still holds its own in the broader market, sitting just a few points away from its nearest rivals. This analysis breaks down where each GPU excels, answers common questions, details the benchmark results, and highlights the specification and architectural differences between the two.

Where Each One Wins

The RTX 4070 Ti is the clear winner in every recorded benchmark. Out of nine head-to-head tests, it takes all nine. The largest margin is in the Passmark GPU Compute test, where the desktop card scores 18,396 against the mobile card’s 11,191, a 64.4% advantage. This indicates that for compute-heavy workloads, such as rendering, scientific calculations, or any task that heavily utilizes the GPU’s parallel processing capabilities, the RTX 4070 Ti is vastly superior. The Geekbench Vulkan test shows a 46.6% lead (213,808 versus 145,807), suggesting that in Vulkan-based games and applications, the desktop card provides a much smoother and higher-framerate experience. The Passmark G3D test, a general 3D graphics benchmark, shows a 26.9% lead (31,624 versus 24,926), reinforcing that the desktop card is the stronger choice for traditional gaming workloads.

The RTX 4080 Mobile, despite losing every head-to-head, has its own area of strength: efficiency and portability. It is an IGP, meaning it is soldered onto a laptop motherboard, consumes 110 W, and requires no power connectors. This makes it the only viable option for a high-performance gaming laptop, as the RTX 4070 Ti with its 285 W TDP and 600 W suggested PSU cannot be installed in a portable chassis. The mobile part’s 81st percentile ranking among all GPUs is respectable, and its average benchmark score of 38,135 places it just 0.4% behind the NVIDIA GeForce MX570 (which scores 38,299) and 0.6% behind the RTX 5080 Mobile (38,349). For users who need desktop-class features like ray tracing and DLSS in a laptop, the RTX 4080 Mobile is the one to choose, even if raw performance is lower. The desktop card, with its 84th percentile ranking, is the choice for stationary systems where power and cooling are not constraints.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The RTX 4070 Ti has a significantly higher average benchmark score of 44,795, compared to the RTX 4080 Mobile’s 38,135. This puts the desktop card in the 84th percentile of all GPUs, while the mobile card sits in the 81st percentile.

Q: How large is the performance gap in the Geekbench OpenCL test?

A: The RTX 4070 Ti scores 176,953, which is 10.9% higher than the RTX 4080 Mobile’s 159,575. This is the smallest margin of victory for the desktop card across all tests.

Q: Does the RTX 4080 Mobile have any advantages over the RTX 4070 Ti?

A: Yes, in terms of physical design and power requirements. The RTX 4080 Mobile has a 110 W TDP and no power connectors, whereas the RTX 4070 Ti has a 285 W TDP and requires a 16-pin connector. The mobile part is also an IGP, making it suitable for laptops, while the desktop card is a dual-slot card.

Q: What is the most significant single test result difference?

A: The Passmark GPU Compute test shows the largest gap, with the RTX 4070 Ti scoring 18,396 versus the RTX 4080 Mobile’s 11,191, a 64.4% difference. This suggests a major advantage for the desktop card in compute-oriented tasks.

Q: How do the two compare in DirectX 12 performance?

A: In the Passmark DirectX 12 test, the RTX 4070 Ti scores 116, while the RTX 4080 Mobile scores 96, giving the desktop card a 20.8% lead. Both support DirectX 12 Ultimate (12_2).

Q: Are the memory specifications identical?

A: No. Both have 12 GB of memory and a 192-bit bus width, but the RTX 4070 Ti uses GDDR6X with 504.2 GB/s bandwidth, while the RTX 4080 Mobile uses GDDR6 with 432.0 GB/s bandwidth. The desktop card’s memory runs at 21 Gbps effective, while the mobile part runs at 18 Gbps.

Head-to-Head Benchmarks

The recorded data paints an unambiguous picture: the RTX 4070 Ti outperforms the RTX 4080 Mobile in every single test. The smallest margin is in Geekbench OpenCL, where the desktop card’s 176,953 score beats the mobile card’s 159,575 by 10.9%. This is a notable lead, but it is the closest the mobile part gets. Moving to Geekbench Vulkan, the gap widens dramatically. The RTX 4070 Ti scores 213,808, while the RTX 4080 Mobile manages 145,807, a 46.6% difference. This suggests that Vulkan-based games and applications will run substantially better on the desktop card.

In the Passmark suite, the results are consistently in favor of the RTX 4070 Ti. The DirectX 9 test shows the desktop card at 352 versus 286, a 23.1% lead. DirectX 10 shows 187 versus 157, a 19.1% lead. DirectX 11 shows 288 versus 244, an 18% lead. DirectX 12 shows 116 versus 96, a 20.8% lead. These margins indicate that across legacy and modern DirectX APIs, the RTX 4070 Ti provides a superior experience. The Passmark G2D test, which measures 2D graphics performance, shows the desktop card at 1,200 versus 929, a 29.2% lead. While less relevant for gaming, this still indicates faster desktop rendering and video playback.

The two most telling results are the Passmark G3D and GPU Compute tests. In G3D, the RTX 4070 Ti scores 31,624, while the RTX 4080 Mobile scores 24,926, a 26.9% advantage. This is a comprehensive measure of 3D rendering performance and directly correlates with gaming framerates. In GPU Compute, the RTX 4070 Ti scores 18,396, while the mobile part scores 11,191, a massive 64.4% difference. This is the largest delta in the entire comparison and highlights how the desktop card’s higher clock speeds and fill rates translate into raw computational power. Overall, the RTX 4070 Ti’s average benchmark score of 44,795 is 17.5% higher than the mobile part’s 38,135. The desktop card also sits near the top of its rival group, being just 0.8% behind the RTX 5090 Mobile (45,152) and 1.3% behind the AMD Radeon Pro 5500 XT (45,384), while leading the RTX A6000 (44,075) by 1.6%. The RTX 4080 Mobile, on the other hand, is essentially tied with its nearest rivals, sitting 0.4% behind the MX570 (38,299) and 0.6% behind the RTX 5080 Mobile (38,349), while leading the RTX 4070 (37,648) and Tesla P4 (37,628) by 1.3% each.

Specification Differences

The two GPUs share a common foundation but diverge significantly in their operating parameters. The RTX 4070 Ti has a base clock of 2310 MHz and a boost clock of 2610 MHz, while the RTX 4080 Mobile runs at a base clock of 1290 MHz and a boost clock of 1665 MHz. This clock speed difference is the primary driver of the performance gap. The desktop card’s memory runs at 1313 MHz (21 Gbps effective), while the mobile card’s memory runs at 2250 MHz (18 Gbps effective). Despite the higher memory clock on the mobile part, the effective data rate is lower due to the use of GDDR6 instead of GDDR6X. The RTX 4070 Ti has 7,680 shading units, 240 texture mapping units (TMUs), and 80 raster output units (ROPs). The RTX 4080 Mobile has 7,424 shading units, 232 TMUs, and the same 80 ROPs. This means the desktop card has a slight edge in raw shader count and texture processing capability.

The pixel rate of the RTX 4070 Ti is 208.8 GPixel/s, compared to 133.2 GPixel/s for the mobile part. Similarly, the texture rate is 626.4 GTexel/s versus 386.3 GTexel/s. The FP32 performance is 40.09 TFLOPS for the desktop card and 24.72 TFLOPS for the mobile card. The RTX 4070 Ti has 60 ray tracing cores and 240 tensor cores, while the RTX 4080 Mobile has 58 ray tracing cores and 232 tensor cores. Power consumption is a major differentiator: the desktop card has a 285 W TDP, while the mobile part has a 110 W TDP. The RTX 4070 Ti requires a 16-pin power connector and a 600 W suggested PSU, while the RTX 4080 Mobile has no power connectors. The desktop card is dual-slot and measures 285 mm in length, 112 mm in height, and 42 mm in width, while the mobile part is an IGP with no physical dimensions recorded. Display outputs also differ: the RTX 4070 Ti has 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the RTX 4080 Mobile is listed as portable device dependent.

Architecture Differences

Both GPUs are built on the AD104 chip using the Ada Lovelace architecture, manufactured by TSMC on a 5 nm process. They share the same transistor count of 35,800 million and the same die size of 294 mm², resulting in a transistor density of 121.8M per mm². The architecture itself is identical in terms of feature set, with both supporting DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The key architectural differences are in the implementation, not the foundation. The RTX 4070 Ti has 7,680 shading units, 240 TMUs, 60 RT cores, and 240 tensor cores. The RTX 4080 Mobile has 7,424 shading units, 232 TMUs, 58 RT cores, and 232 tensor cores. This means the desktop card has 3.4% more shading units, 3.4% more TMUs, 3.4% more RT cores, and 3.4% more tensor cores than the mobile part. This slight increase in core counts, combined with the much higher clock speeds, explains the substantial performance difference.

The memory subsystem is another architectural difference. The RTX 4070 Ti uses GDDR6X memory, which is a faster memory technology, delivering 504.2 GB/s of bandwidth. The RTX 4080 Mobile uses GDDR6, delivering 432.0 GB/s. Both have a 192-bit bus width and 12 GB of capacity. The desktop card’s pixel rate of 208.8 GPixel/s is 56.8% higher than the mobile part’s 133.2 GPixel/s, and its texture rate of 626.4 GTexel/s is 62.1% higher than the mobile part’s 386.3 GTexel/s. The FP32 throughput is 40.09 TFLOPS versus 24.72 TFLOPS, a 62.2% advantage for the desktop card. The production status also differs: the RTX 4070 Ti is end-of-life, while the RTX 4080 Mobile is active. Both were released on the same date, and both have successors in the GeForce 50 series, with the desktop card succeeding the GeForce 30 series and the mobile part succeeding the GeForce 30 Mobile series. The RTX 4070 Ti has a launch MSRP of 799 USD, while the mobile part has no recorded launch MSRP. The slot width is dual-slot for the desktop card and IGP for the mobile part, and the bus interface is PCIe 4.0 x16 for both. These architectural differences, while minor on paper, are magnified by the clock speed and power envelope disparities, resulting in the desktop card being the far more capable performer in every measured scenario.