AMD Radeon RX 7800M vs NVIDIA GeForce GTX 780 Ti Comparison

AMD Radeon RX 7800M vs NVIDIA GeForce GTX 780 Ti

Where Each One Wins

The recorded data splits this comparison into two very different eras of GPU design. The AMD Radeon RX 7800M wins every head-to-head benchmark recorded in the database, and it does so by overwhelming margins. The NVIDIA GeForce GTX 780 Ti, meanwhile, shows no benchmark wins in the direct comparisons, though it does have a functional OpenCL and Vulkan presence that allows it to compete at a basic level. The 7800M is the clear choice for any modern workload, especially compute-heavy tasks like OpenCL or Vulkan rendering. The GTX 780 Ti, in contrast, is an older part that still holds a place in legacy systems, but the data shows it is outclassed by roughly three to four times in raw compute performance.

Looking at the broader benchmark averages, the 7800M sits at an avgBenchmarkScore of 27883, while the GTX 780 Ti trails at 24236. That is a significant gap, roughly 15% overall, but the head-to-head results tell a more dramatic story. In Geekbench OpenCL, the 7800M scores 120778 versus 27326 for the GTX 780 Ti, a delta of 342%. In Vulkan, the 7800M scores 126668 versus 27238, a delta of 365%. These are not incremental improvements; they are generational leaps. The 7800M also holds a percentileVsAllGpus of 73, compared to 70 for the GTX 780 Ti, meaning the AMD part sits higher in the global distribution of all GPUs.

For use-case selection, the 7800M is the pick for anyone running modern APIs, compute workloads, or high-resolution gaming. The GTX 780 Ti, with its older Kepler architecture and DirectX 12 (11_1) support, lacks the feature set for current titles. The data suggests the GTX 780 Ti is only relevant for very old software or as a placeholder in a system awaiting an upgrade. There is no scenario in the recorded metrics where the GTX 780 Ti wins a single benchmark, so the verdict is straightforward: the 7800M dominates.

Architecture Differences

The architectural gap between these two cards is vast, reflecting a decade of GPU evolution. The AMD Radeon RX 7800M uses the Navi 32 chip based on RDNA 3.0 architecture, with the codename "Wheat Nas". It is built on a 5 nm process at TSMC, packing 28,100 million transistors into a 346 mm² die, yielding a transistor density of 81.2M per mm². In contrast, the NVIDIA GeForce GTX 780 Ti uses the GK110B chip based on Kepler architecture, built on a 28 nm process at the same foundry, with 7,080 million transistors on a 561 mm² die, yielding a transistor density of just 12.6M per mm². The 7800M is not only smaller in physical size but also far more dense, which explains its efficiency advantage.

The 7800M features 3840 shading units, 240 TMUs, 96 ROPs, and 60 RT cores, while the GTX 780 Ti has 2880 shading units, 240 TMUs, 48 ROPs, and no RT cores. The ROP count is doubled on the AMD side, which directly impacts pixel fill rates. The 7800M achieves a pixel rate of 224.2 GPixel/s versus 55.68 GPixel/s for the GTX 780 Ti, and a texture rate of 560.4 GTexel/s versus 222.7 GTexel/s. Compute throughput is equally lopsided: the 7800M delivers 35.87 TFLOPS FP32, while the GTX 780 Ti manages only 5.345 TFLOPS. The AMD card also supports FP16 at 35.87 TFLOPS (1:1), a feature the GTX 780 Ti lacks entirely.

Memory architecture differs fundamentally. The 7800M uses 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth, while the GTX 780 Ti uses 3 GB of GDDR5 on a 384-bit bus with 336.6 GB/s bandwidth. The AMD part has four times the capacity and higher bandwidth, despite a narrower bus, thanks to faster memory clocks. The 7800M also supports modern APIs like DirectX 12 Ultimate (12_2) and Vulkan 1.4, whereas the GTX 780 Ti only reaches DirectX 12 (11_1) and Vulkan 1.2.175. The process node difference alone, 5 nm versus 28 nm, explains most of the performance and efficiency gap.

Head-to-Head Benchmarks

The direct comparisons in the database are limited to two tests, but they are decisive. In Geekbench OpenCL, the AMD Radeon RX 7800M scores 120778, while the NVIDIA GeForce GTX 780 Ti scores 27326. That is a 342% delta in favor of the AMD card. In Geekbench Vulkan, the 7800M scores 126668 versus 27238 for the GTX 780 Ti, a 365% delta. These are not close contests by any measure. The 7800M is roughly 4.4 times faster in OpenCL and 4.65 times faster in Vulkan. Such margins indicate that the GTX 780 Ti cannot handle modern compute loads at any competitive level.

The avgBenchmarkScore further reinforces this. The 7800M averages 27883 across all recorded tests, while the GTX 780 Ti averages 24236. The nearest rivals for the 7800M include the AMD Radeon Pro Vega 20 (avgScore 27839, delta 0.2%), the AMD Radeon Pro W5500X (avgScore 27973, delta -0.3%), the NVIDIA GeForce GTX 980 Ti (avgScore 28020, delta -0.5%), and the AMD FirePro S7150 (avgScore 28117, delta -0.8%). The 7800M sits right in the middle of this group, essentially tied with all of them. For the GTX 780 Ti, nearest rivals include the NVIDIA GeForce GTX 1630 (avgScore 24277, delta -0.2%), the NVIDIA GeForce RTX 2080 SUPER (avgScore 24170, delta 0.3%), the AMD Radeon RX 6800S (avgScore 24063, delta 0.7%), and the AMD Radeon RX 6600 XT (avgScore 24442, delta -0.8%). The GTX 780 Ti is similarly clustered, but at a much lower absolute score level.

The wins tally is 2 for the 7800M and 0 for the GTX 780 Ti in the head-to-head set. No recorded test shows the NVIDIA card ahead. This is a one-sided matchup, and the numbers leave no room for interpretation. The 7800M is not just faster; it is in a different performance class.

Specification Differences

The two cards differ in nearly every measurable specification. The 7800M has a base clock of 1295 MHz, a boost clock of 2335 MHz, and a game clock of 2145 MHz. The GTX 780 Ti has a base clock of 875 MHz and a boost clock of 928 MHz, with no game clock listed. Memory clock also differs: the 7800M runs at 2250 MHz (18 Gbps effective), while the GTX 780 Ti runs at 1753 MHz (7 Gbps effective). The 7800M has 12 GB of GDDR6 memory on a 192-bit bus with 432.0 GB/s bandwidth; the GTX 780 Ti has 3 GB of GDDR5 on a 384-bit bus with 336.6 GB/s bandwidth.

Power and physical design are also distinct. The 7800M has a TDP of 180 W, is an IGP form factor with no power connectors, and uses a PCIe 4.0 x16 interface. The GTX 780 Ti has a TDP of 250 W, is a dual-slot card requiring 1x 6-pin and 1x 8-pin power connectors, and suggests a 600 W PSU. The GTX 780 Ti is 267 mm long, 111 mm tall, and 38 mm wide, with display outputs of 2x DVI, 1x HDMI 1.4a, and 1x DisplayPort 1.2. The 7800M has display outputs listed as "Portable Device Dependent", reflecting its mobile or integrated nature.

API support differs as well. The 7800M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The GTX 780 Ti supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.175. The 7800M has RT cores (60 of them), while the GTX 780 Ti has none. The 7800M also has a higher transistor count (28,100 million versus 7,080 million) and a smaller die (346 mm² versus 561 mm²). The production status differs: the 7800M is Active, while the GTX 780 Ti is End-of-life. Release dates are far apart, with the 7800M launching in 2024 and the GTX 780 Ti in 2013.

FAQ

Q: Which card has more memory?

A: The AMD Radeon RX 7800M has 12 GB of GDDR6 memory, while the NVIDIA GeForce GTX 780 Ti has 3 GB of GDDR5. The AMD card offers four times the capacity.

Q: How much faster is the 7800M in Vulkan?

A: In the Geekbench Vulkan test, the 7800M scores 126668 versus 27238 for the GTX 780 Ti, a delta of 365%. That means the AMD card is roughly 4.65 times faster.

Q: Does the GTX 780 Ti support ray tracing?

A: No. The GTX 780 Ti has no RT cores. The 7800M includes 60 RT cores, so it supports hardware-accelerated ray tracing.

Q: What is the power consumption difference?

A: The 7800M has a TDP of 180 W, while the GTX 780 Ti has a TDP of 250 W. The GTX 780 Ti also requires a 1x 6-pin and 1x 8-pin power connector, while the 7800M uses no external power connectors.

Q: Which card is better for modern games?

A: The 7800M, based on its DirectX 12 Ultimate (12_2) support and much higher compute performance. The GTX 780 Ti only supports DirectX 12 (11_1), which limits its compatibility with newer titles.

Q: What is the average benchmark score for each?

A: The 7800M has an avgBenchmarkScore of 27883, and the GTX 780 Ti has an avgBenchmarkScore of 24236. The AMD card is about 15% higher in overall average.

The Verdict

The data points to a clear winner: the AMD Radeon RX 7800M. It wins every head-to-head benchmark, holds a higher percentile ranking (73 versus 70), and delivers dramatically better compute performance in both OpenCL and Vulkan. The 342% and 365% deltas in those tests are not incremental; they represent a generational shift. The 7800M also offers more memory, a smaller and more efficient process node, and modern API support including DirectX 12 Ultimate and Vulkan 1.4. For any new build or upgrade, the 7800M is the only sensible choice.

The NVIDIA GeForce GTX 780 Ti, on the other hand, is an end-of-life product with a 250 W TDP and a 600 W suggested PSU. It lacks RT cores, has half the ROPs, and runs a 28 nm process that is outdated. Its only advantage in the recorded data is that it is a dual-slot card with a traditional PCIe 3.0 x16 interface, which might fit older systems. But even there, its performance ceiling is far below the 7800M. The GTX 780 Ti is a relic from 2013, and the benchmark results confirm it cannot compete with a modern RDNA 3.0 part. For anyone choosing between these two, the 7800M is the answer.