AMD Radeon RX 6750 XT vs NVIDIA GeForce RTX 3070 Ti Mobile Comparison

Head-to-Head Benchmarks

The head-to-head data shows a clear split between the two GPUs, with the AMD Radeon RX 6750 XT winning 7 out of 10 benchmark comparisons, while the NVIDIA GeForce RTX 3070 Ti Mobile takes 3 wins. The most decisive AMD victory comes in the Geekbench OpenCL test, where the Radeon posts a score of 16,360 against NVIDIA's 106,022; this is not an AMD win, however, as the delta of -84.6% indicates NVIDIA's massive lead. That result is the single largest gap in either direction, and it skews the overall average benchmark score heavily toward NVIDIA.

Looking at the PassMark suite, AMD dominates across the board. In PassMark DirectX 9, the Radeon scores 263 versus 196 for the RTX 3070 Ti Mobile, a 34.2% advantage. PassMark GPU Compute shows a 27.3% lead for AMD, with scores of 9,550 and 7,504 respectively. PassMark G2D goes to AMD by 24.1% (972 vs. 783), and PassMark DirectX 11 shows a 17.6% edge (180 vs. 153). PassMark G3D, a strong indicator of general 3D rendering performance, favors the Radeon at 20,700 against 17,727, a 16.8% win. Even PassMark DirectX 12, where both cards are modern, shows AMD ahead by 9.6% (80 vs. 73). The narrowest AMD win is PassMark DirectX 10, where the margin is just 0.8% (125 vs. 124).

NVIDIA's wins are concentrated in different areas. The 3DMark Steel Nomad DX12 test goes to the RTX 3070 Ti Mobile by a slim 0.9% margin, with scores of 2,572 versus 2,548. Geekbench Vulkan is also close, with NVIDIA ahead by 1.9% (100,027 vs. 98,089). The OpenCL result is the outlier: NVIDIA's 106,022 is 548% higher than AMD's 16,360, which is the single largest performance gap in the entire comparison. This OpenCL figure heavily influences the average benchmark score, where the Radeon sits at 26,011 and the RTX 3070 Ti Mobile at 23,518.

When placed against their nearest rivals in the database, both cards occupy similar tiers. The RX 6750 XT's average score of 26,011 puts it just 0.5% ahead of the AMD Radeon R9 M395X (25,891) and 1.1% ahead of the NVIDIA GeForce RTX 3080 Ti Mobile (25,740). The RTX 3070 Ti Mobile's 23,518 average is effectively tied with the GeForce RTX 3080 Mobile (23,628, a -0.5% gap) and the GTX TITAN Z (23,736, -0.9%). The percentile data reinforces this parity: the Radeon sits at the 71st percentile of all GPUs, while the NVIDIA mobile part is at the 69th percentile.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. AMD's RX 6750 XT uses the Navi 22 chip built on RDNA 2.0 architecture, manufactured on a 7 nm process at TSMC. The die measures 335 mm² and contains 17,200 million transistors, yielding a transistor density of 51.3 million per square millimeter. NVIDIA's RTX 3070 Ti Mobile uses the GA104 chip on Ampere architecture, fabricated on Samsung's 8 nm node. Its die is larger at 392 mm², with 17,400 million transistors, but the density is lower at 44.4 million per square millimeter.

Clock speeds reveal a stark contrast in design targets. The Radeon runs a base clock of 2150 MHz and boosts to 2600 MHz, with a game clock of 2495 MHz. The RTX 3070 Ti Mobile is far more conservative, with a base of 915 MHz and a boost of 1410 MHz. This reflects the mobile part's power constraints, as its TDP is 115 W compared to the Radeon's 250 W. Memory clocks also differ: AMD runs 2250 MHz (18 Gbps effective), while NVIDIA runs 1750 MHz (14 Gbps effective).

Memory configuration favors AMD in capacity but NVIDIA in bandwidth. The RX 6750 XT has 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s. The RTX 3070 Ti Mobile has 8 GB on a 256-bit bus, achieving 448.0 GB/s. Despite the smaller capacity, NVIDIA's wider bus gives it a slight bandwidth advantage. The Radeon's higher clocks help it reach a pixel rate of 166.4 GPixel/s and a texture rate of 416.0 GTexel/s, while the NVIDIA part manages 135.4 GPixel/s and 259.4 GTexel/s.

Compute resource allocation differs significantly. The Radeon has 2,560 shading units, 160 TMUs, and 64 ROPs, along with 40 ray tracing cores. NVIDIA's part has 5,888 shading units, 184 TMUs, and 96 ROPs, plus 46 RT cores and 184 tensor cores. FP32 throughput tells a more nuanced story: NVIDIA reaches 16.60 TFLOPS, while AMD hits 13.31 TFLOPS. FP16 performance is identical for NVIDIA at 16.60 TFLOPS (1:1 ratio), but AMD doubles to 26.62 TFLOPS using a 2:1 ratio. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Radeon uses a dual-slot design with 1x 6-pin and 1x 8-pin power connectors and a 600 W suggested PSU, while the NVIDIA mobile part has no power connectors and is portable-device dependent.

Where Each One Wins

The Radeon RX 6750 XT is the clear winner for desktop gaming workloads, especially in legacy DirectX titles. Its 34.2% lead in DirectX 9 and 17.6% lead in DirectX 11 suggest strong driver optimization for older APIs. The 16.8% win in PassMark G3D indicates solid general 3D rendering performance. For compute-heavy tasks on the PassMark GPU Compute test, AMD's 27.3% advantage shows it handles general-purpose GPU work efficiently. The 24.1% G2D win also points to better 2D acceleration, which matters for desktop productivity and video playback.

The RTX 3070 Ti Mobile wins in modern API scenarios and compute workloads that favor NVIDIA's architecture. The 3DMark Steel Nomad DX12 test, a demanding next-generation benchmark, goes to NVIDIA by 0.9%. Geekbench Vulkan shows a 1.9% NVIDIA edge, indicating competitive performance in Vulkan-based titles. The OpenCL result is the standout: NVIDIA's 106,022 score is more than six times AMD's 16,360. This makes the RTX 3070 Ti Mobile the better choice for OpenCL compute applications, which include many scientific and professional workloads. The tensor cores also give it a feature set that AMD lacks entirely, though no direct benchmark in the data measures that advantage.

Power consumption is another dividing line. The Radeon draws 250 W and requires a 600 W power supply, making it suitable for desktop builds with ample cooling. The RTX 3070 Ti Mobile runs at 115 W with no external power connectors, designed for laptops where efficiency is paramount. This makes the NVIDIA part the only viable option for portable systems, while the AMD card is strictly a desktop component.

The Verdict

The data shows two GPUs designed for different form factors and workloads. The AMD Radeon RX 6750 XT wins the majority of benchmark comparisons, particularly in DirectX 9, 11, and 12, plus compute and 2D tests. Its 12 GB memory capacity and higher clock speeds make it a strong desktop GPU for gaming, especially in titles that rely on older DirectX versions. The 71st percentile ranking and average score of 26,011 place it slightly above the RTX 3070 Ti Mobile's 69th percentile and 23,518 average.

However, the RTX 3070 Ti Mobile has a decisive advantage in OpenCL compute and holds its own in modern DX12 and Vulkan workloads. Its 115 W TDP makes it suitable for laptops, which is a fundamental difference: the Radeon cannot be used in a portable system. For users building a desktop with a 600 W PSU, the RX 6750 XT's higher win count and lower average score gap make it the better performer in most measured categories. For laptop buyers or users prioritizing OpenCL compute, the RTX 3070 Ti Mobile is the only choice and offers superior performance in that specific metric.

The nearest rival data confirms both cards are competitive within their respective markets. The RX 6750 XT is 1.1% ahead of the RTX 3080 Ti Mobile, while the RTX 3070 Ti Mobile is 0.5% behind the RTX 3080 Mobile. Neither card is a runaway leader; the choice depends on platform and workload priorities.

FAQ

Q: Which GPU wins more benchmark comparisons?

A: The AMD Radeon RX 6750 XT wins 7 out of 10 head-to-head benchmarks, while the NVIDIA GeForce RTX 3070 Ti Mobile wins 3.

Q: How large is the OpenCL performance gap?

A: The RTX 3070 Ti Mobile scores 106,022 in Geekbench OpenCL versus 16,360 for the RX 6750 XT, a delta of -84.6% favoring NVIDIA.

Q: What is the memory capacity difference?

A: The RX 6750 XT has 12 GB of GDDR6, while the RTX 3070 Ti Mobile has 8 GB. The NVIDIA card has a wider 256-bit bus versus 192-bit, resulting in 448.0 GB/s bandwidth versus 432.0 GB/s.

Q: How do their average benchmark scores compare?

A: The RX 6750 XT has an average benchmark score of 26,011, while the RTX 3070 Ti Mobile averages 23,518. The Radeon ranks at the 71st percentile of all GPUs, and the NVIDIA part ranks at the 69th.

Q: Which card has higher clock speeds?

A: The RX 6750 XT runs at a 2150 MHz base and 2600 MHz boost, while the RTX 3070 Ti Mobile runs at 915 MHz base and 1410 MHz boost.

Q: What are the power requirements?

A: The RX 6750 XT has a 250 W TDP and requires a 600 W power supply, using 1x 6-pin and 1x 8-pin connectors. The RTX 3070 Ti Mobile has a 115 W TDP and no power connectors.