AMD Radeon RX 6700 XT vs NVIDIA GeForce RTX 3070 Ti Mobile Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 6700 XT has a higher average benchmark score of 27425, versus 23518 for the NVIDIA GeForce RTX 3070 Ti Mobile. The AMD card also sits at the 72nd percentile of all GPUs, while the NVIDIA card sits at the 69th percentile.

Q: How does the NVIDIA card compare to its closest rival in terms of average score?

A: The RTX 3070 Ti Mobile's average score of 23518 places it nearly even with the NVIDIA GeForce RTX 3080 Mobile (23628, a -0.5% delta), and slightly ahead of the AMD Radeon AI PRO R9700 (23315, a +0.9% delta). It trails the NVIDIA GeForce GTX TITAN Z (23736) by -0.9%.

Q: In which major benchmark does the RTX 3070 Ti Mobile have its largest victory?

A: The RTX 3070 Ti Mobile dominates in Geekbench OpenCL, scoring 106022 versus the RX 6700 XT's 44152. That is a 58.4% lead for the NVIDIA card, the largest delta in the head-to-head comparison.

Q: Which GPU wins in DirectX 9 and DirectX 11 tests?

A: The RX 6700 XT wins both. In Passmark DirectX 9, it scores 242 versus 196, a 23.5% advantage. In Passmark DirectX 11, it scores 173 versus 153, a 13.1% advantage.

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

A: The RTX 3070 Ti Mobile has a higher memory bandwidth of 448.0 GB/s (8 GB GDDR6 on a 256-bit bus), while the RX 6700 XT has 384.0 GB/s (12 GB GDDR6 on a 192-bit bus).

Q: Which GPU has more shading units and texture mapping units?

A: The RTX 3070 Ti Mobile has 5888 shading units and 184 texture mapping units, compared to the RX 6700 XT's 2560 shading units and 160 texture mapping units. The NVIDIA card also has 184 tensor cores versus none listed for AMD.

The Verdict

The benchmark data presents a clear split between the two cards. The AMD Radeon RX 6700 XT wins 7 out of 10 head-to-head benchmark comparisons, including all four Passmark DirectX tests, the Passmark G2D, G3D, and GPU Compute tests. Its overall average score is 27425, which is 16.6% higher than the RTX 3070 Ti Mobile's 23518. If the priority is raw aggregate performance across a broad suite of workloads, the RX 6700 XT is the stronger choice based on the database.

However, the RTX 3070 Ti Mobile is not without its own strengths. It wins the two most demanding modern tests: 3DMark Steel Nomad DX12 (2572 versus 2435, a 5.3% lead) and Geekbench OpenCL (106022 versus 44152, a 58.4% lead). It also narrowly edges out the RX 6700 XT in Geekbench Vulkan (100027 versus 93500, a 6.5% lead). For users who prioritize compute-heavy workloads that scale well with NVIDIA's architecture, or who need the higher memory bandwidth of 448.0 GB/s, the RTX 3070 Ti Mobile is the better fit.

The data suggests that the RX 6700 XT is the more balanced performer for general gaming and legacy DirectX titles, while the RTX 3070 Ti Mobile is specialized for modern API compute and OpenCL tasks. The RTX 3070 Ti Mobile also consumes less power at 115 W TDP versus the RX 6700 XT's 230 W, making it the more power-efficient option for mobile applications. The RX 6700 XT, being a desktop card with a 267 mm length and dual-slot design, is not directly comparable in form factor.

Head-to-Head Benchmarks

The largest single victory goes to the RTX 3070 Ti Mobile in Geekbench OpenCL. With a score of 106022 against 44152, the NVIDIA card leads by 58.4%. This is a massive gap that suggests the Ampere architecture's compute capabilities, including its 184 tensor cores, are far better utilized in this workload. The RX 6700 XT's RDNA 2.0 architecture, which lacks tensor cores, cannot match this level of compute throughput.

In 3DMark Steel Nomad DX12, the RTX 3070 Ti Mobile also takes the win, scoring 2572 versus 2435, a 5.3% advantage. This is a modern DirectX 12 test, and the NVIDIA card's higher FP32 throughput (16.60 TFLOPS versus 13.21 TFLOPS) likely contributes to this result. The Geekbench Vulkan test also favors the RTX 3070 Ti Mobile, with 100027 versus 93500, a 6.5% lead.

The RX 6700 XT, however, dominates the Passmark suite. In DirectX 9, it scores 242 versus 196, a 23.5% lead. In DirectX 11, it scores 173 versus 153, a 13.1% lead. In DirectX 12, it scores 77 versus 73, a 5.5% lead. The DirectX 10 test is a tie at 124 each, but the database credits the win to the RX 6700 XT.

The Passmark G2D test shows a 21.5% lead for the RX 6700 XT (951 versus 783), indicating stronger 2D graphics performance. The Passmark G3D test shows an 11.6% lead (19786 versus 17727), and the Passmark GPU Compute test shows a 24.4% lead (9336 versus 7504). These results paint a picture of the RX 6700 XT being consistently faster across legacy and general-purpose workloads, while the RTX 3070 Ti Mobile excels in specific modern compute scenarios.

Specification Differences

The two GPUs differ significantly in their memory configurations. The RX 6700 XT has 12 GB of GDDR6 on a 192-bit bus, yielding a bandwidth of 384.0 GB/s. The RTX 3070 Ti Mobile has 8 GB of GDDR6 on a 256-bit bus, yielding a higher bandwidth of 448.0 GB/s. The NVIDIA card has a wider memory interface but less capacity, while the AMD card offers more capacity but a narrower bus.

Clock speeds are dramatically different. The RX 6700 XT has a base clock of 2321 MHz and a boost clock of 2581 MHz, with a game clock of 2424 MHz. The RTX 3070 Ti Mobile has a base clock of 915 MHz and a boost clock of 1410 MHz. The AMD card runs at much higher frequencies, which helps it achieve its higher pixel rate of 165.2 GPixel/s versus the NVIDIA card's 135.4 GPixel/s.

The FP32 compute figures favor the NVIDIA card: 16.60 TFLOPS versus the RX 6700 XT's 13.21 TFLOPS. However, the RX 6700 XT has a higher texture rate of 413.0 GTexel/s versus the NVIDIA card's 259.4 GTexel/s. The AMD card has a TDP of 230 W and requires a 550 W power supply with a 1x 6-pin and 1x 8-pin connector. The RTX 3070 Ti Mobile has a TDP of 115 W and uses no power connectors, as it is designed for portable devices.

The RX 6700 XT is a desktop card with dual-slot width, dimensions of 267 mm x 110 mm x 40 mm, and display outputs of 1x HDMI 2.1 and 3x DisplayPort 1.4a. The RTX 3070 Ti Mobile has no fixed dimensions or display outputs, as they are dependent on the portable device. The AMD card has a launch MSRP of 479 USD.

Architecture Differences

The RX 6700 XT uses the Navi 22 chip built on RDNA 2.0 architecture, manufactured on a 7 nm process at TSMC. It has 17,200 million transistors on a die size of 335 mm², giving a transistor density of 51.3M per mm². The NVIDIA card uses the GA104 chip built on Ampere architecture, manufactured on an 8 nm process at Samsung. It has 17,400 million transistors on a die size of 392 mm², giving a transistor density of 44.4M per mm².

The RX 6700 XT has 2560 shading units, 160 texture mapping units, 64 ROPs, and 40 ray tracing cores. It does not list any tensor cores. The RTX 3070 Ti Mobile has 5888 shading units, 184 texture mapping units, 96 ROPs, 46 ray tracing cores, and 184 tensor cores. The NVIDIA card has significantly more shader and RT hardware, plus dedicated tensor cores for AI workloads.

Memory clocks also differ. The RX 6700 XT uses a memory clock of 2000 MHz with 16 Gbps effective speed, while the RTX 3070 Ti Mobile uses 1750 MHz with 14 Gbps effective speed. The AMD card's higher effective memory speed helps compensate for its narrower 192-bit bus.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both use a PCIe 4.0 x16 bus interface. The production status for both is end-of-life. The RX 6700 XT was released on 2021-03-02, while the RTX 3070 Ti Mobile was released on 2022-01-03. The AMD card's predecessor is Navi and its successor is Navi III, while the NVIDIA card's predecessor is GeForce 20 Mobile and it has no listed successor.