AMD Radeon RX 6400 vs NVIDIA GeForce GTX 770M Comparison

The AMD Radeon RX 6400 and NVIDIA GeForce GTX 770M are statistically inseparable in aggregate performance, with average benchmark scores of 6001 and 6000 respectively, a 0% delta. However, this parity in overall standing masks a fundamental technological gulf: the RX 6400 is a modern, efficiency-focused discrete GPU built on RDNA 2.0, while the GTX 770M is a legacy Kepler mobile part from a different era. The data shows that while their average scores align, the RX 6400 delivers a decisive victory in the only direct head-to-head benchmark available, with architectural and feature-set advantages that suggest the GTX 770M’s parity is likely a result of limited test coverage rather than true performance equivalence.

Where Each One Wins

The benchmark results present a clear, albeit narrow, picture of dominance. The AMD Radeon RX 6400 claims the sole victory in the direct comparison, winning the Geekbench OpenCL test with a score of 32011 against the GTX 770M’s 8552. This represents a massive 274.3% lead, indicating that in compute-heavy, general-purpose workloads, the RX 6400 is in a different performance class entirely. This is the only head-to-head benchmark where both GPUs have recorded scores, meaning the RX 6400 wins all available direct comparisons.

The NVIDIA GeForce GTX 770M, conversely, has no benchmark wins in this dataset. Its only recorded scores come from Geekbench OpenCL, where it loses decisively, and Geekbench Metal, where it scores 3448. The latter test is not applicable to the RX 6400, as Metal is an Apple API, leaving the GTX 770M with no comparative advantage in the available data. For the GTX 770M, the picture is one of parity in aggregate averages but defeat in the specific test where both are measured. The RX 6400’s win is not marginal; it is a generational leap in compute throughput that dwarfs the older part’s output.

Architecture Differences

The architectural gap between these two GPUs is stark and explains their divergent benchmark behavior. The RX 6400 is built on TSMC’s 6 nm process node, packing 5,400 million transistors into a compact 107 mm² die. In contrast, the GTX 770M uses a 28 nm process, with 2,540 million transistors spread across a much larger 221 mm² die. This results in a transistor density of 50.5M per mm² for the AMD part versus 11.5M per mm² for the NVIDIA part, highlighting the immense efficiency advantage of the newer fabrication process.

Core configurations also differ significantly. The RX 6400 employs 768 shading units, 48 texture mapping units (TMUs), and 32 render output units (ROPs), and it includes 12 dedicated ray tracing cores. The GTX 770M has more shading units at 960, along with 80 TMUs, but fewer ROPs at 24, and it has no ray tracing cores at all. Clock speeds are another differentiator: the RX 6400 operates at a base of 1923 MHz with a boost of 2321 MHz, while the GTX 770M is much slower, with a base of 706 MHz and a boost of 797 MHz. This clock advantage, combined with the architecture, gives the RX 6400 a pixel rate of 74.27 GPixel/s and a texture rate of 111.4 GTexel/s, versus the GTX 770M’s 15.94 GPixel/s and 63.76 GTexel/s. The RX 6400’s FP32 compute is listed at 3.565 TFLOPS, more than double the GTX 770M’s 1.530 TFLOPS.

Head-to-Head Benchmarks

The single available head-to-head result is the Geekbench OpenCL test, and it is a landslide. The AMD Radeon RX 6400 scores 32011, while the NVIDIA GeForce GTX 770M scores 8552. The delta is 274.3%, meaning the RX 6400 delivers nearly four times the performance in this workload. This test measures general-purpose GPU compute, often used for tasks like video encoding, physics simulation, and data processing. The result is not close. It reflects the combined impact of the RX 6400’s superior process node, higher clock speeds, and more efficient architecture. The GTX 770M’s higher shading unit count (960 vs 768) is insufficient to overcome the massive clock speed and architectural penalties.

Beyond this direct comparison, the broader benchmark suite reinforces the RX 6400’s position. The RX 6400 scores 176 in 3DMark Steel Nomad DX12, 16372 in Geekbench Vulkan, and 7673 in Passmark G3D. It also achieves 2812 in Passmark GPU Compute. The GTX 770M has no recorded scores in these tests within the data, meaning no additional comparative analysis is possible. The aggregate average scores—6001 for the RX 6400 and 6000 for the GTX 770M—are near-identical, but this appears to be an artifact of the GTX 770M having limited test coverage. The RX 6400’s performance in modern APIs like Vulkan and DX12, where it scores 16372 and 176 respectively, indicates it is designed for contemporary workloads, whereas the GTX 770M’s architecture from 2013 is not represented in these metrics.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon RX 6400 has an average benchmark score of 6001, while the NVIDIA GeForce GTX 770M scores 6000, a difference of just 1 point, resulting in a 0% delta.

Q: How much faster is the RX 6400 in the Geekbench OpenCL test?

A: The RX 6400 scores 32011 compared to the GTX 770M’s 8552, representing a 274.3% performance advantage.

Q: Does the GTX 770M support ray tracing?

A: No, the GTX 770M has no ray tracing cores listed in its specifications, whereas the RX 6400 includes 12 dedicated ray tracing cores.

Q: What are the memory specifications for each GPU?

A: The RX 6400 has 4 GB of GDDR6 memory on a 64-bit bus with 128.0 GB/s bandwidth. The GTX 770M has 3 GB of GDDR5 memory on a 192-bit bus with 96.19 GB/s bandwidth.

Q: Which GPU has a higher boost clock?

A: The RX 6400 has a boost clock of 2321 MHz, significantly higher than the GTX 770M’s boost clock of 797 MHz.

Q: Are both GPUs considered end-of-life products?

A: Yes, the production status for both the AMD Radeon RX 6400 and the NVIDIA GeForce GTX 770M is listed as “End-of-life.”

The Verdict

The data points to a clear verdict: for any workload captured by the available benchmarks, the AMD Radeon RX 6400 is the superior choice. Its 274.3% lead in Geekbench OpenCL is the only direct comparison, and it is decisive. The RX 6400 also offers modern features like ray tracing cores, support for DirectX 12 Ultimate (12_2), and Vulkan 1.4, whereas the GTX 770M is limited to DirectX 12 (11_0) and Vulkan 1.2.175. The GTX 770M’s aggregate score parity is misleading, as it is based on a single test where it loses overwhelmingly. The RX 6400’s architecture, process node, and clock speeds make it a far more capable part for compute tasks. For gaming or general GPU compute, the RX 6400 is the only rational pick based on this data. The GTX 770M, with its older Kepler architecture and lower performance metrics, is outclassed in every measurable way where both have results.

Specification Differences

| Specification | AMD Radeon RX 6400 | NVIDIA GeForce GTX 770M |

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

| Architecture | RDNA 2.0 | Kepler |

| Process Node | 6 nm | 28 nm |

| Transistors | 5,400 million | 2,540 million |

| Die Size | 107 mm² | 221 mm² |

| Base Clock | 1923 MHz | 706 MHz |

| Boost Clock | 2321 MHz | 797 MHz |

| Memory Size | 4 GB | 3 GB |

| Memory Type | GDDR6 | GDDR5 |

| Memory Bus Width | 64 bit | 192 bit |

| Memory Bandwidth | 128.0 GB/s | 96.19 GB/s |

| Shading Units | 768 | 960 |

| TMUs | 48 | 80 |

| ROPs | 32 | 24 |

| Ray Tracing Cores | 12 | None |

| Pixel Rate | 74.27 GPixel/s | 15.94 GPixel/s |

| Texture Rate | 111.4 GTexel/s | 63.76 GTexel/s |

| FP32 Performance | 3.565 TFLOPS | 1.530 TFLOPS |

| TDP | 53 W | 75 W |

| Bus Interface | PCIe 4.0 x4 | MXM-B (3.0) |

| DirectX Support | 12 Ultimate (12_2) | 12 (11_0) |

| Vulkan Support | 1.4 | 1.2.175 |

| Release Date | 2022-01-18 | 2013-05-29 |