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

Head-to-Head Benchmarks

The recorded data shows a decisive sweep in favor of the AMD Radeon RX 6700S across all three shared benchmark tests. The GeForce GTX 780 Ti does not claim a single win in the head-to-head comparisons. The AMD part leads by substantial margins in every measured workload, with the smallest gap still exceeding 60 percent.

In Geekbench Metal, the RX 6700S scores 72,864 against the GTX 780 Ti's 18,144. That is a delta of 75.1 percent in favor of AMD, meaning the Radeon delivers roughly four times the Metal performance. The gap is slightly narrower but still massive in Geekbench OpenCL, where the RX 6700S posts 70,965 versus 27,326 for the GTX 780 Ti, a 61.5 percent advantage. Vulkan shows a similar story: the AMD card reaches 76,150 while the NVIDIA card manages 27,238, a 64.2 percent deficit for the older Kepler part.

These are not close races. The RX 6700S outperforms the GTX 780 Ti by a factor of three to four depending on the API. Even the weakest result for the Radeon, the OpenCL score, leaves the GeForce at roughly 38 percent of AMD's output. The GTX 780 Ti's best showing, its Vulkan score of 27,238, is still less than 36 percent of what the RX 6700S achieves in that same test.

Looking at the overall average benchmark score, the GTX 780 Ti actually holds a narrow edge: 24,236 versus 22,154 for the RX 6700S. This apparent contradiction stems from the fact that the database includes a broader set of tests for the Radeon, including PassMark suites where it scores low (e.g., 87 in DirectX 10, 58 in DirectX 12, 134 in DirectX 11). The GeForce's average is based only on its three Geekbench results, which are relatively consistent. When the exact same three Geekbench tests are compared directly, the Radeon wins every one by a wide margin.

In terms of percentile ranking against all GPUs, the GTX 780 Ti sits at the 70th percentile, while the RX 6700S is at the 67th. This places both cards in the upper tier of the database, but the percentile is computed from different benchmark sets. The direct head-to-head data is unambiguous: the RX 6700S is the faster card in every shared test.

Where Each One Wins

The RX 6700S wins all three direct comparisons, so the practical question is where the GTX 780 Ti might still be preferable. Based on the recorded data, the GeForce's strengths lie in areas outside raw compute throughput measured by Geekbench.

The GTX 780 Ti has a higher average benchmark score (24,236) than the RX 6700S (22,154). This is driven by the GeForce's consistent performance across its three Geekbench tests, with no result below 18,144. The Radeon, by contrast, has a much wider spread: it dominates in Geekbench (scores from 70,965 to 76,150) but falls sharply in older DirectX and compute workloads, with PassMark scores as low as 58 in DirectX 12 and 87 in DirectX 10. For legacy DirectX 9 workloads, the RX 6700S still manages 195 in PassMark, which is respectable but far below its Geekbench numbers.

The GTX 780 Ti also has a smaller footprint in terms of system requirements. It uses a 250 W TDP and requires a 600 W suggested PSU, whereas the RX 6700S is rated at just 80 W TDP with no power connector and no suggested PSU listed. For a system with a weak power supply or limited cooling capacity, the Radeon is clearly the easier fit. The GTX 780 Ti needs a 6-pin and an 8-pin power connector; the RX 6700S needs none.

For users running Metal-based applications on macOS or OpenCL/Vulkan workloads, the RX 6700S is the only rational choice. The GeForce's 18,144 Metal score is less than a quarter of the Radeon's 72,864. For users running older DirectX titles, the GTX 780 Ti might be more consistent, but the database lacks direct head-to-head tests for those APIs, so that conclusion is inferential rather than measured.

Architecture Differences

The two cards come from different eras and fundamentally different design philosophies. The GTX 780 Ti uses the GK110B chip, built on Kepler architecture, fabricated by TSMC on a 28 nm process. It packs 7,080 million transistors into a 561 mm² die, yielding a transistor density of 12.6 million per square millimeter. The RX 6700S uses the Navi 23 chip, built on RDNA 2.0, also fabricated by TSMC but on a 7 nm process. It contains 11,060 million transistors in a much smaller 237 mm² die, achieving 46.7 million transistors per square millimeter.

The memory configurations differ sharply. The GTX 780 Ti has 3 GB of GDDR5 on a 384-bit bus, delivering 336.6 GB/s of bandwidth. The RX 6700S has 8 GB of GDDR6 on a 128-bit bus, delivering 224.0 GB/s. Despite the narrower bus, the Radeon's newer memory technology and higher effective clock (14 Gbps versus 7 Gbps) close the bandwidth gap, though the GeForce still holds a 50 percent bandwidth advantage.

Compute resources are organized differently. The GTX 780 Ti has 2,880 shading units, 240 texture mapping units, and 48 ROPs. The RX 6700S has 1,792 shading units, 112 TMUs, and 64 ROPs. The Radeon compensates with much higher clocks: 1,700 MHz base and 2,000 MHz boost versus 875 MHz base and 928 MHz boost for the GeForce. This results in the RX 6700S achieving 7.168 TFLOPS FP32 versus 5.345 TFLOPS for the GTX 780 Ti. The Radeon also supports FP16 at 14.34 TFLOPS (2:1 ratio); the GeForce has no listed FP16 capability.

The RX 6700S includes 28 ray tracing cores, a feature entirely absent from the GTX 780 Ti. It also supports DirectX 12 Ultimate (12_2), while the GeForce only reaches DirectX 12 (11_1). Both support OpenGL 4.6, but the Radeon has Vulkan 1.4 support versus 1.2.175 for the NVIDIA card.

Pixel and texture rates tell a mixed story. The RX 6700S achieves 128.0 GPixel/s versus 55.68 GPixel/s for the GTX 780 Ti, reflecting the Radeon's higher ROP count and clocks. Texture rates are nearly identical: 224.0 GTexel/s for the Radeon versus 222.7 GTexel/s for the GeForce, despite the GeForce having more than double the TMUs.

The GTX 780 Ti is a dual-slot, 267 mm long card with a 1x 6-pin plus 1x 8-pin power requirement. The RX 6700S is an IGP (integrated graphics processor) with no dimensions listed, no power connectors, and display outputs described as "Portable Device Dependent." The GeForce offers 2x DVI, 1x HDMI 1.4a, and 1x DisplayPort 1.2; the Radeon's outputs depend on the host device.

FAQ

Q: Which card has the higher average benchmark score?

A: The GTX 780 Ti averages 24,236 across its tested workloads, while the RX 6700S averages 22,154. However, this is based on different test sets, and in direct head-to-head comparisons the Radeon wins all three Geekbench tests.

Q: How much faster is the RX 6700S in Vulkan?

A: The RX 6700S scores 76,150 in Geekbench Vulkan versus 27,238 for the GTX 780 Ti, a 64.2 percent advantage for the AMD card.

Q: Does the GTX 780 Ti have any ray tracing support?

A: No. The GTX 780 Ti has no ray tracing cores listed. The RX 6700S includes 28 ray tracing cores.

Q: What are the power requirements for each card?

A: The GTX 780 Ti has a 250 W TDP, requires a 600 W suggested PSU, and uses a 1x 6-pin plus 1x 8-pin power connector. The RX 6700S has an 80 W TDP, no power connector, and no suggested PSU listed.

Q: Which card has more memory?

A: The RX 6700S has 8 GB of GDDR6, while the GTX 780 Ti has 3 GB of GDDR5. The GeForce has a wider 384-bit bus and higher bandwidth (336.6 GB/s) versus the Radeon's 128-bit bus and 224.0 GB/s.

Q: What is the launch MSRP of the GTX 780 Ti?

A: The GTX 780 Ti had a launch MSRP of 699 USD. The RX 6700S has no launch MSRP recorded.

The Verdict

The data is unambiguous. The RX 6700S is dramatically faster than the GTX 780 Ti in every directly comparable benchmark. In Metal, OpenCL, and Vulkan, the Radeon leads by margins ranging from 61.5 percent to 75.1 percent. For any modern workload that uses these APIs, the GTX 780 Ti is simply outclassed.

The GTX 780 Ti's only statistical advantages are its higher average benchmark score (24,236 versus 22,154) and its higher percentile ranking (70th versus 67th). But these are artifacts of different test sets. When the same tests are run on both cards, the GeForce loses every time.

The RX 6700S also offers modern features the GTX 780 Ti lacks: ray tracing cores, DirectX 12 Ultimate support, FP16 compute, and a newer Vulkan implementation. It does all this at 80 W TDP versus 250 W, with no external power connector required. The GTX 780 Ti's 336.6 GB/s bandwidth and 384-bit bus are impressive on paper, but they do not translate into competitive performance in the recorded benchmarks.

For anyone building a system today, the RX 6700S is the clear choice based on performance, efficiency, and feature set. The GTX 780 Ti is an end-of-life product from 2013 with a 699 USD launch MSRP, and its only practical use case would be in a legacy system that cannot accommodate newer cards. The data shows no scenario where the GTX 780 Ti wins a shared benchmark. Pick the RX 6700S unless the system physically cannot use it.

Specification Differences

| Specification | GTX 780 Ti | RX 6700S |

|---|---|---|

| Architecture | Kepler | RDNA 2.0 |

| Process Node | 28 nm | 7 nm |

| Transistors | 7,080 million | 11,060 million |

| Die Size | 561 mm² | 237 mm² |

| Transistor Density | 12.6M / mm² | 46.7M / mm² |

| Base Clock | 875 MHz | 1700 MHz |

| Boost Clock | 928 MHz | 2000 MHz |

| Memory Size | 3 GB | 8 GB |

| Memory Type | GDDR5 | GDDR6 |

| Memory Bus Width | 384 bit | 128 bit |

| Memory Bandwidth | 336.6 GB/s | 224.0 GB/s |

| Shading Units | 2880 | 1792 |

| TMUs | 240 | 112 |

| ROPs | 48 | 64 |

| Ray Tracing Cores | None | 28 |

| FP32 Performance | 5.345 TFLOPS | 7.168 TFLOPS |

| FP16 Performance | None listed | 14.34 TFLOPS (2:1) |

| Pixel Rate | 55.68 GPixel/s | 128.0 GPixel/s |

| Texture Rate | 222.7 GTexel/s | 224.0 GTexel/s |

| TDP | 250 W | 80 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 1x 6-pin + 1x 8-pin | None |

| Suggested PSU | 600 W | None listed |

| Bus Interface | PCIe 3.0 x16 | PCIe 4.0 x8 |

| DirectX Support | 12 (11_1) | 12 Ultimate (12_2) |

| Vulkan Support | 1.2.175 | 1.4 |

| Release Date | 2013-11-06 | 2022-01-03 |

| Production Status | End-of-life | End-of-life |