AMD Radeon RX 6700S vs NVIDIA GeForce GTX 780 Comparison

FAQ

Q: How does the AMD Radeon RX 6700S compare to the NVIDIA GeForce GTX 780 in overall average benchmark score?

A: The RX 6700S records an average benchmark score of 22154, while the GTX 780 scores 19164. That puts the AMD part roughly 15.6% ahead in aggregate performance, and the RX 6700S sits at the 67th percentile of all GPUs versus the 64th percentile for the GTX 780.

Q: Which card wins in the Geekbench compute tests?

A: The RX 6700S wins all three recorded Geekbench tests. In Metal it scores 72864 versus 10114, a 620.4% difference. In OpenCL it scores 70965 versus 22863, a 210.4% difference. In Vulkan it scores 76150 versus 24514, a 210.6% difference.

Q: What is the memory configuration difference between the two cards?

A: The RX 6700S has 8 GB of GDDR6 memory on a 128-bit bus with 224.0 GB/s bandwidth. The GTX 780 has 3 GB of GDDR5 memory on a 384-bit bus with 288.4 GB/s bandwidth. The GTX 780 has higher raw bandwidth, but the RX 6700S has over twice the capacity.

Q: Are these cards in the same performance class according to the nearest rivals data?

A: Not exactly. The RX 6700S's nearest rivals include the AMD Radeon RX 5700 (22170, 0.1% higher) and the NVIDIA GeForce RTX 5060 Mobile (22435, 1.3% higher). The GTX 780's nearest rivals include the NVIDIA TITAN Xp (19177, 0.1% higher) and the AMD Radeon RX 6600 (19036, 0.7% lower). The RX 6700S competes in a higher performance tier.

Q: What are the power and physical requirements of each card?

A: The RX 6700S has a TDP of 80 W, is an IGP form factor, requires no power connectors, and has no suggested PSU listed. The GTX 780 has a TDP of 250 W, is a dual-slot card, requires 1x 6-pin plus 1x 8-pin power connectors, and a suggested 600 W PSU.

Q: Which card supports newer graphics APIs?

A: The RX 6700S supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The GTX 780 supports DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175. The RX 6700S is the more modern API implementation.

Where Each One Wins

The data splits decisively in favor of the AMD Radeon RX 6700S across every recorded benchmark. The RX 6700S wins 3 of 3 head-to-head tests, and all of its wins are substantial rather than marginal. The largest gap appears in Geekbench Metal, where the RX 6700S scores 72864 versus the GTX 780's 10114, a 620.4% advantage. That is not a close contest; it is a generational gap expressed in compute throughput.

The Geekbench OpenCL and Vulkan results tell a similar story. In OpenCL the RX 6700S posts 70965 against 22863, a 210.4% lead. In Vulkan it posts 76150 against 24514, a 210.6% lead. These are not single-test anomalies; the RX 6700S roughly triples the GTX 780's compute scores across the board.

Where the GTX 780 retains any conceptual advantage is in memory bandwidth. Its 384-bit bus delivers 288.4 GB/s, which is higher than the RX 6700S's 224.0 GB/s. That bandwidth advantage may help in specific bandwidth-bound legacy workloads, but the recorded benchmark data shows no test where the GTX 780 comes out ahead. The RX 6700S compensates with a much newer memory type, GDDR6 versus GDDR5, and more than double the capacity at 8 GB versus 3 GB.

For practical use, the RX 6700S is the clear choice in every measured scenario. The GTX 780's only realistic edge is in scenarios where the higher bandwidth and 384-bit interface matter more than raw shader throughput, but no such scenario appears in the database measurements.

Architecture Differences

The two cards come from different architectural eras. The RX 6700S uses the RDNA 2.0 architecture on the Navi 23 chip, fabricated on a 7 nm process at TSMC. The GTX 780 uses the Kepler architecture on the GK110 chip, fabricated on a 28 nm process, also at TSMC. The process node difference is enormous: 7 nm versus 28 nm, which explains much of the efficiency gap.

Transistor counts reflect the node difference. The RX 6700S packs 11,060 million transistors on a 237 mm² die, giving a transistor density of 46.7M per mm². The GTX 780 has 7,080 million transistors on a 561 mm² die, for a density of 12.6M per mm². The RX 6700S crams nearly four times as many transistors per square millimeter.

The RX 6700S includes 28 ray tracing cores, a feature the GTX 780 lacks entirely. The RX 6700S also supports DirectX 12 Ultimate (12_2), while the GTX 780 is limited to DirectX 12 (11_0). Vulkan support differs too: the RX 6700S runs Vulkan 1.4, the GTX 780 runs Vulkan 1.2.175. These API differences matter for modern game compatibility and feature support.

The RX 6700S belongs to the Radeon RX 6000 series and the Navi Mobile (RX 6000M) generation, released in 2022. The GTX 780 belongs to the GeForce 700 generation, released in 2013. The RX 6700S is the newer design by roughly nine years, and the architectural advances show in every benchmark category.

Specification Differences

The two cards differ in nearly every specification category. The RX 6700S has a base clock of 1700 MHz and a boost clock of 2000 MHz, with a game clock of 1890 MHz. The GTX 780 has a base clock of 863 MHz and a boost clock of 902 MHz. The RX 6700S runs at more than double the clock speed.

Memory differs in capacity, type, bus width, and bandwidth. The RX 6700S has 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth. The GTX 780 has 3 GB of GDDR5 on a 384-bit bus with 288.4 GB/s bandwidth.

Compute resources are split differently. The RX 6700S has 1792 shading units, 112 TMUs, and 64 ROPs. The GTX 780 has 2304 shading units, 192 TMUs, and 48 ROPs. The GTX 780 has more shading units and TMUs, but the RX 6700S has more ROPs and much higher clocks.

Pixel and texture rates favor the RX 6700S. The RX 6700S achieves 128.0 GPixel/s and 224.0 GTexel/s. The GTX 780 achieves 43.30 GPixel/s and 173.2 GTexel/s. FP32 performance is also higher on the RX 6700S at 7.168 TFLOPS versus 4.156 TFLOPS. The RX 6700S also supports FP16 at 14.34 TFLOPS (2:1), while the GTX 780 has no listed FP16 capability.

Power and physical specs are dramatically different. The RX 6700S is an IGP with 80 W TDP and no power connectors. The GTX 780 is a dual-slot card at 250 W TDP with 1x 6-pin and 1x 8-pin connectors and a suggested 600 W PSU. The GTX 780 is 267 mm long, 111 mm high, and 38 mm wide. The RX 6700S has no listed dimensions because it is designed for portable devices.

The GTX 780 has a launch MSRP of 649 USD. The RX 6700S has no launch MSRP listed in the database.

Head-to-Head Benchmarks

The head-to-head results are one-sided. In Geekbench Metal, the RX 6700S scores 72864 against the GTX 780's 10114, a 620.4% delta. This is the single largest margin in the comparison and reflects the RDNA 2.0 architecture's far stronger compute throughput in Apple's Metal API.

In Geekbench OpenCL, the RX 6700S scores 70965 against 22863, a 210.4% delta. The RX 6700S more than triples the GTX 780's OpenCL performance. This is consistent with the FP32 and FP16 throughput figures: the RX 6700S delivers 7.168 TFLOPS FP32 versus 4.156 TFLOPS for the GTX 780, and the RX 6700S also has FP16 support that the GTX 780 lacks.

In Geekbench Vulkan, the RX 6700S scores 76150 against 24514, a 210.6% delta. Vulkan is the modern cross-platform API, and the RX 6700S's newer Vulkan 1.4 implementation versus the GTX 780's Vulkan 1.2.175 likely contributes to the gap. The RX 6700S also posts its highest Geekbench score in Vulkan, which suggests the architecture scales well with modern API features.

The RX 6700S also has a much broader benchmark footprint in the database. The RX 6700S has recorded scores across 3DMark Steel Nomad DX12, Geekbench Metal, OpenCL, Vulkan, and multiple Passmark tests including DirectX 9, 10, 11, 12, G2D, G3D, and GPU compute. The GTX 780 only has Geekbench Metal, OpenCL, and Vulkan scores recorded. The RX 6700S's Passmark G3D score of 15066 and GPU compute score of 5990 provide additional context, but the GTX 780 has no comparable entries.

The Verdict

The data points to one conclusion: the AMD Radeon RX 6700S is the superior GPU in every measured category. It wins all three head-to-head benchmarks, holds a higher average benchmark score (22154 versus 19164), and sits at a higher percentile rank (67th versus 64th). The RX 6700S also supports modern features that the GTX 780 cannot match, including ray tracing cores, DirectX 12 Ultimate, and Vulkan 1.4.

The GTX 780's only theoretical advantages are higher memory bandwidth (288.4 GB/s versus 224.0 GB/s) and a wider 384-bit memory bus. These specifications do not translate into any benchmark win in the recorded data. The RX 6700S compensates with GDDR6 memory, more than double the capacity, and vastly higher clocks.

For anyone choosing between these two cards today, the RX 6700S is the clear pick. It delivers roughly triple the compute performance in Geekbench tests, consumes 80 W instead of 250 W, requires no power connectors, and fits in an IGP form factor. The GTX 780 requires a dual-slot cooler, a 600 W PSU, and external power connectors, while delivering a fraction of the performance.

The GTX 780's launch MSRP of 649 USD reflects its 2013 positioning as a high-end desktop card. The RX 6700S, with no listed launch MSRP, is a mobile part designed for portable devices. The architectural gap between Kepler and RDNA 2.0 is too large for the GTX 780 to overcome, and the benchmark data confirms that the RX 6700S is the only rational choice for modern workloads.