AMD Radeon RX 6700 XT vs NVIDIA GeForce GTX 780 Ti Comparison

FAQ

Q: How much faster is the AMD Radeon RX 6700 XT than the NVIDIA GeForce GTX 780 Ti in the recorded benchmarks?

A: The RX 6700 XT wins all three head-to-head tests. The largest gap is in Geekbench Metal, where it scores 130,896 versus 18,144, a 621.4% difference. In Geekbench Vulkan it leads by 243.3%, and in Geekbench OpenCL it is 61.6% ahead.

Q: Which card has the higher average benchmark score?

A: The AMD Radeon RX 6700 XT has an average benchmark score of 27,425, while the NVIDIA GeForce GTX 780 Ti averages 24,236. The RX 6700 XT also sits at the 72nd percentile of all GPUs, compared to the 70th percentile for the GTX 780 Ti.

Q: How do the two cards compare in memory capacity and type?

A: The RX 6700 XT uses 12 GB of GDDR6 memory on a 192-bit bus, delivering 384.0 GB/s of bandwidth. The GTX 780 Ti has 3 GB of GDDR5 on a 384-bit bus, providing 336.6 GB/s. The newer card has four times the memory capacity and higher bandwidth despite a narrower bus.

Q: What are the process node differences between the two GPUs?

A: The RX 6700 XT is built on a 7 nm process at TSMC, while the GTX 780 Ti uses a 28 nm process, also at TSMC. The RX 6700 XT packs 17,200 million transistors into a 335 mm² die, whereas the GTX 780 Ti has 7,080 million transistors on a much larger 561 mm² die.

Q: Does the GTX 780 Ti support ray tracing?

A: No. The GTX 780 Ti has no ray tracing cores listed in the database. The RX 6700 XT includes 40 ray tracing cores and supports DirectX 12 Ultimate (12_2), while the GTX 780 Ti is limited to DirectX 12 (11_1).

Q: Which card has a higher boost clock speed?

A: The RX 6700 XT boosts to 2,581 MHz, versus 928 MHz for the GTX 780 Ti. The RX 6700 XT also has a higher base clock at 2,321 MHz compared to 875 MHz for the older NVIDIA card.

Architecture Differences

The AMD Radeon RX 6700 XT and NVIDIA GeForce GTX 780 Ti come from different architectural generations with a large technology gap between them. The RX 6700 XT uses the RDNA 2.0 architecture on a 7 nm TSMC process, while the GTX 780 Ti relies on the Kepler architecture on a 28 nm TSMC process. This node shrink allows the RX 6700 XT to fit 17,200 million transistors into a 335 mm² die, achieving a transistor density of 51.3M per mm². The GTX 780 Ti, by contrast, places 7,080 million transistors on a 561 mm² die with a density of only 12.6M per mm².

The RX 6700 XT is a modern design with 40 ray tracing cores, a feature entirely absent from the GTX 780 Ti. It also supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the GTX 780 Ti supports DirectX 12 (11_1) and Vulkan 1.2.175. Both cards support OpenGL 4.6. The RX 6700 XT also supports FP16 compute at a 2:1 ratio, delivering 26.43 TFLOPS, whereas the GTX 780 Ti has no listed FP16 capability. Its FP32 throughput is 13.21 TFLOPS, over double the 5.345 TFLOPS of the GTX 780 Ti.

The memory subsystem also reflects the generational shift. The RX 6700 XT uses 12 GB of GDDR6 at a 192-bit bus width, while the GTX 780 Ti uses 3 GB of GDDR5 at a 384-bit bus. Despite the narrower bus, the RX 6700 XT achieves higher bandwidth at 384.0 GB/s versus 336.6 GB/s, thanks to the faster 16 Gbps effective memory clock compared to 7 Gbps.

Head-to-Head Benchmarks

The recorded head-to-head data shows a clean sweep for the AMD Radeon RX 6700 XT across all three tested workloads. The most dramatic result is in Geekbench Metal, where the RX 6700 XT scores 130,896 against 18,144 for the GTX 780 Ti, a 621.4% advantage. This is the kind of margin that reflects both architectural maturity and the substantially higher clock speeds of the RDNA 2.0 card.

In Geekbench Vulkan, the RX 6700 XT posts 93,500 versus 27,238, a 243.3% lead. Vulkan is a low-level API that benefits from efficient hardware utilization, and the RX 6700 XT's modern design shows a clear edge here. The GTX 780 Ti's Kepler architecture, while capable in its day, cannot keep pace with the newer card's compute resources.

The smallest gap of the three is in Geekbench OpenCL, where the RX 6700 XT scores 44,152 against 27,326, a 61.6% lead. Even in this more compute-oriented workload, the RX 6700 XT maintains a substantial advantage. The data shows that across Metal, Vulkan, and OpenCL, the RX 6700 XT outperforms the GTX 780 Ti by margins ranging from roughly 60% to over six times.

Specification Differences

The two cards differ in nearly every measurable specification. The RX 6700 XT has 2,560 shading units, 160 texture mapping units, and 64 ROPs. The GTX 780 Ti has 2,880 shading units, 240 TMUs, and 48 ROPs. Despite having fewer shading units and TMUs, the RX 6700 XT achieves higher pixel and texture rates: 165.2 GPixel/s and 413.0 GTexel/s, versus 55.68 GPixel/s and 222.7 GTexel/s for the GTX 780 Ti.

Clock speeds favor the RX 6700 XT decisively. Its base clock is 2,321 MHz and boost clock is 2,581 MHz, with a game clock of 2,424 MHz. The GTX 780 Ti has a base clock of 875 MHz and a boost of 928 MHz. The RX 6700 XT's memory runs at 2,000 MHz (16 Gbps effective), while the GTX 780 Ti's memory runs at 1,753 MHz (7 Gbps effective).

Power consumption is similar: the RX 6700 XT has a TDP of 230 W, and the GTX 780 Ti has a TDP of 250 W. Both use dual-slot coolers and require a 1x 6-pin plus 1x 8-pin power connection. The suggested PSU is 550 W for the RX 6700 XT and 600 W for the GTX 780 Ti. The RX 6700 XT uses PCIe 4.0 x16, while the GTX 780 Ti uses PCIe 3.0 x16. Display outputs also differ: the RX 6700 XT offers 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the GTX 780 Ti offers 2x DVI, 1x HDMI 1.4a, and 1x DisplayPort 1.2. Physical dimensions are close, with the RX 6700 XT at 267 mm length, 110 mm height, and 40 mm width, versus 267 mm length, 111 mm height, and 38 mm width for the GTX 780 Ti.

The Verdict

The benchmark data is unambiguous. The AMD Radeon RX 6700 XT wins all three head-to-head tests and has a higher average benchmark score of 27,425 versus 24,236 for the GTX 780 Ti. It also holds a slightly higher percentile ranking at 72 versus 70. The RX 6700 XT is faster in every recorded workload, with advantages ranging from 61.6% in OpenCL to 621.4% in Metal.

The GTX 780 Ti, despite having more shading units and TMUs, cannot overcome the architectural and process node advantages of the RX 6700 XT. The newer card's 7 nm process, higher clocks, and modern memory subsystem deliver far better real-world performance. The GTX 780 Ti remains an end-of-life product from the GeForce 700 generation, while the RX 6700 XT is also end-of-life but comes from the Radeon RX 6000 series.

For anyone choosing between these two, the RX 6700 XT is the clear choice based on the recorded data. Its higher scores, superior feature set including ray tracing support, and larger memory capacity make it the more capable card in every measured scenario. The GTX 780 Ti's only advantages are a slightly lower TDP and a wider memory bus, but these do not translate into performance wins in the benchmarks.

Where Each One Wins

The AMD Radeon RX 6700 XT wins in every category measured by the database. It has a 621.4% advantage in Geekbench Metal, a 243.3% advantage in Geekbench Vulkan, and a 61.6% advantage in Geekbench OpenCL. Its average benchmark score is 3,189 points higher, and it sits two percentile points higher among all GPUs.

The NVIDIA GeForce GTX 780 Ti does not win any of the recorded benchmarks. Its nearest rivals in the database include the NVIDIA GeForce GTX 1630 with an average score of 24,277, the RTX 2080 SUPER at 24,170, and the AMD Radeon RX 6600 XT at 24,442. The GTX 780 Ti's average score of 24,236 places it within a narrow band of these cards, with deltas ranging from -0.8% to +0.7%. This indicates that the GTX 780 Ti performs in line with much newer entry-level and mid-range cards, but it is not competitive with the RX 6700 XT.

The RX 6700 XT, by comparison, sits near the NVIDIA GeForce RTX 3090 in average score. The RTX 3090 averages 27,565, a -0.5% delta from the RX 6700 XT's 27,425. It also compares closely to the RTX 4070 Mobile at 27,435 and the RTX PRO 4000 Blackwell at 27,135. This places the RX 6700 XT in the performance tier of high-end GPUs, while the GTX 780 Ti lingers in the entry-level to mid-range segment.

For use-case selection, the RX 6700 XT is the pick for modern gaming, compute workloads, and any application that can leverage ray tracing or newer API features. Its 12 GB memory capacity and 384.0 GB/s bandwidth make it suitable for higher-resolution textures and larger datasets. The GTX 780 Ti, with its 3 GB memory and lack of ray tracing support, is best suited for legacy applications or systems where its PCIe 3.0 interface and older display outputs are acceptable. The data, however, offers no scenario where the GTX 780 Ti outperforms the RX 6700 XT in the recorded tests.