AMD Radeon RX 6400 vs NVIDIA GeForce GTX 560 SE Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce GTX 560 SE records an average benchmark score of 7171, while the AMD Radeon RX 6400 averages 6001. The GTX 560 SE sits at the 39th percentile of all GPUs, whereas the RX 6400 is at the 35th percentile.

Q: How do the two compare in the only shared benchmark test?

A: In Geekbench OpenCL, the AMD Radeon RX 6400 scores 32011 versus 7171 for the NVIDIA GeForce GTX 560 SE. This represents a 77.6% advantage for the RX 6400, making it the clear winner in that specific test.

Q: What are the closest rivals to each card according to the database?

A: For the GTX 560 SE, the nearest rivals include the Intel Iris Pro Graphics P580 (7170, 0% delta), NVIDIA GeForce GTX 970 (7157, 0.2%), AMD Radeon Vega 8 Mobile (7203, -0.4%), and NVIDIA GeForce GTX 750 (7222, -0.7%). For the RX 6400, the nearest rivals are the NVIDIA GeForce GTX 770M (6000, 0%), NVIDIA RTX PRO 6000 Blackwell Server (5996, 0.1%), AMD FirePro W4100 (5987, 0.2%), and NVIDIA Quadro K4000M (5986, 0.3%).

Q: Which card has more shading units?

A: The AMD Radeon RX 6400 has 768 shading units, while the NVIDIA GeForce GTX 560 SE has 288. The RX 6400 also has 12 ray tracing cores, which the GTX 560 SE lacks entirely.

Q: What are the memory specifications for each card?

A: The GTX 560 SE has 1024 MB of GDDR5 memory on a 192-bit bus with 91.87 GB/s bandwidth. The RX 6400 has 4 GB of GDDR6 memory on a 64-bit bus with 128.0 GB/s bandwidth.

Q: Which card has a lower power requirement?

A: The AMD Radeon RX 6400 has a TDP of 53 W and requires no power connectors with a suggested PSU of 250 W. The NVIDIA GeForce GTX 560 SE has a TDP of 150 W, needs two 6-pin connectors, and a suggested PSU of 450 W.

Architecture Differences

The two GPUs come from fundamentally different eras and design philosophies. The NVIDIA GeForce GTX 560 SE uses the GF114 chip built on Fermi 2.0 architecture, manufactured on a 40 nm process at TSMC. It integrates 1,950 million transistors on a 332 mm² die, yielding a transistor density of 5.9M per mm². The AMD Radeon RX 6400 uses the Navi 24 chip based on RDNA 2.0, fabricated on a 6 nm process, also at TSMC. It packs 5,400 million transistors onto just 107 mm², achieving a density of 50.5M per mm², a massive leap in integration efficiency.

The RX 6400's architecture supports hardware ray tracing with 12 dedicated RT cores, a feature completely absent from the Fermi 2.0 design. The GTX 560 SE relies on 288 shading units, 48 texture mapping units, and 24 raster operation units. The RX 6400 scales this up with 768 shading units, 48 TMUs, and 32 ROPs, plus support for FP16 computation at a 2:1 ratio, delivering 7.130 TFLOPS half-precision versus no listed FP16 capability for the older card.

The memory subsystems differ dramatically. The GTX 560 SE uses 1024 MB of GDDR5 on a 192-bit interface, while the RX 6400 uses 4 GB of GDDR6 on a 64-bit bus. Despite the narrower bus, the RX 6400 achieves higher bandwidth at 128.0 GB/s compared to 91.87 GB/s, thanks to much faster memory clocks. The RX 6400's memory runs at 2000 MHz (16 Gbps effective), whereas the GTX 560 SE's memory runs at 957 MHz (3.8 Gbps effective).

API support also separates the two. The RX 6400 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The GTX 560 SE supports DirectX 12 (11_0) and OpenGL 4.6, with no Vulkan support listed. The RX 6400 also features PCIe 4.0 x4 connectivity, while the GTX 560 SE uses PCIe 2.0 x16.

Head-to-Head Benchmarks

The database contains one direct head-to-head benchmark between these two cards: Geekbench OpenCL. The results are decisive. The AMD Radeon RX 6400 scores 32011, while the NVIDIA GeForce GTX 560 SE scores 7171. The delta percentage of -77.6% indicates the GTX 560 SE trails by over three-quarters of the RX 6400's performance in this compute workload.

This single benchmark tells a clear story about compute throughput. The RX 6400's FP32 performance is rated at 3.565 TFLOPS versus 847.9 GFLOPS for the GTX 560 SE, a difference that aligns with the OpenCL result. The RX 6400 also delivers a pixel rate of 74.27 GPixel/s and a texture rate of 111.4 GTexel/s, compared to 8.832 GPixel/s and 35.33 GTexel/s for the GTX 560 SE.

The RX 6400's additional benchmark data provides context for its overall standing. It scores 7673 in Passmark G3D, 2812 in Passmark GPU Compute, and 93 in Passmark DirectX 9. These scores place it near rivals like the NVIDIA GeForce GTX 770M, which averages 6000, and the AMD FirePro W4100 at 5987. The GTX 560 SE's average of 7171 puts it in company with the Intel Iris Pro Graphics P580 at 7170 and the NVIDIA GeForce GTX 970 at 7157.

In terms of percentile ranking, the GTX 560 SE actually ranks higher at the 39th percentile versus the RX 6400's 35th percentile. This is somewhat counterintuitive given the RX 6400's superior raw compute, but it reflects the distribution of all GPUs in the database, which includes many lower-end integrated and older discrete parts.

Specification Differences

| Specification | NVIDIA GeForce GTX 560 SE | AMD Radeon RX 6400 |

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

| Architecture | Fermi 2.0 | RDNA 2.0 |

| Process Node | 40 nm | 6 nm |

| Transistors | 1,950 million | 5,400 million |

| Die Size | 332 mm² | 107 mm² |

| Transistor Density | 5.9M / mm² | 50.5M / mm² |

| Base Clock | Not listed | 1923 MHz |

| Boost Clock | Not listed | 2321 MHz |

| Game Clock | Not listed | 2039 MHz |

| Memory Clock | 957 MHz (3.8 Gbps effective) | 2000 MHz (16 Gbps effective) |

| Memory Size | 1024 MB | 4 GB |

| Memory Type | GDDR5 | GDDR6 |

| Memory Bus Width | 192 bit | 64 bit |

| Memory Bandwidth | 91.87 GB/s | 128.0 GB/s |

| Shading Units | 288 | 768 |

| TMUs | 48 | 48 |

| ROPs | 24 | 32 |

| RT Cores | None | 12 |

| Pixel Rate | 8.832 GPixel/s | 74.27 GPixel/s |

| Texture Rate | 35.33 GTexel/s | 111.4 GTexel/s |

| FP32 Performance | 847.9 GFLOPS | 3.565 TFLOPS |

| FP16 Performance | Not listed | 7.130 TFLOPS (2:1) |

| TDP | 150 W | 53 W |

| Slot Width | Dual-slot | Single-slot |

| Power Connectors | 2x 6-pin | None |

| Suggested PSU | 450 W | 250 W |

| Bus Interface | PCIe 2.0 x16 | PCIe 4.0 x4 |

| Display Outputs | 2x DVI, 1x mini-HDMI 1.3a | 1x HDMI 2.1, 1x DisplayPort 1.4a |

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

| Vulkan Support | Not listed | 1.4 |

| Release Date | 2012-02-19 | 2022-01-18 |

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

Where Each One Wins

The AMD Radeon RX 6400 wins decisively in raw compute performance. Its Geekbench OpenCL score of 32011 is more than four times the GTX 560 SE's 7171. The RX 6400 also dominates in theoretical throughput metrics: 3.565 TFLOPS FP32 versus 847.9 GFLOPS, 74.27 GPixel/s versus 8.832 GPixel/s, and 111.4 GTexel/s versus 35.33 GTexel/s. For any workload that stresses shading, pixel fill, or texture processing, the RX 6400 is the clear choice.

The RX 6400 also wins on efficiency and physical footprint. It draws 53 W compared to 150 W, requires no external power connectors versus two 6-pin, and takes a single slot versus dual-slot. The suggested PSU drops from 450 W to 250 W. This makes the RX 6400 far more suitable for compact or power-constrained systems. Its memory bandwidth advantage, 128.0 GB/s versus 91.87 GB/s, further reinforces its modern design.

The RX 6400 supports newer APIs including DirectX 12 Ultimate and Vulkan 1.4, plus hardware ray tracing with 12 RT cores. The GTX 560 SE has no ray tracing and only DirectX 12 (11_0) support. For modern game titles and compute applications that leverage these features, the RX 6400 is the only viable option.

The NVIDIA GeForce GTX 560 SE retains one notable advantage: its average benchmark score of 7171 ranks at the 39th percentile, above the RX 6400's 6001 average at the 35th percentile. This suggests that in the broader database, the GTX 560 SE outperforms a larger fraction of all GPUs than the RX 6400 does. Its nearest rivals include the NVIDIA GeForce GTX 970 and GTX 750, indicating it competes with much newer midrange hardware in aggregate scoring.

The GTX 560 SE also has a wider memory bus at 192-bit versus 64-bit, which can be beneficial in certain bandwidth-sensitive legacy workloads. Its PCIe 2.0 x16 interface, while older, offers more lanes than the RX 6400's PCIe 4.0 x4, though the latter's newer standard provides higher per-lane bandwidth.

For users prioritizing raw compute, modern API support, efficiency, and compactness, the RX 6400 is the superior choice. For those looking at aggregate database rankings or dealing with older software that favors the Fermi architecture's characteristics, the GTX 560 SE holds its ground in percentile terms, though its absolute performance is far lower. The data clearly shows the RX 6400 as the more capable GPU for contemporary workloads, while the GTX 560 SE remains a historical artifact with competitive ranking relative to its era.