AMD Radeon RX 7650 GRE vs NVIDIA RTX A400 Comparison

Head-to-Head Benchmarks

The database contains one directly comparable benchmark between the AMD Radeon RX 7650 GRE and the NVIDIA RTX A400: the Geekbench OpenCL test. The results are decisive. The AMD Radeon RX 7650 GRE scores 83,109 points, while the NVIDIA RTX A400 scores 22,844 points. This gives the AMD part a 263.8% advantage, meaning it delivers roughly 3.6 times the raw compute throughput in this workload. The delta is so large that it places the two cards in entirely different performance tiers.

Looking at the broader database context, the AMD Radeon RX 7650 GRE sits at the 83rd percentile of all GPUs, with an average benchmark score of 42,723. Its nearest rivals include the NVIDIA GeForce RTX 4070 SUPER, which averages 43,223 (a delta of -1.2%), and the NVIDIA Quadro M6000 24 GB, which averages 43,262 (also -1.2%). The RX 7650 GRE is effectively within 1.3% of these cards, indicating it competes in the upper-midrange segment. The RTX A400, by contrast, sits at the 35th percentile with an average benchmark score of 6,078. Its closest rival is the NVIDIA GeForce MX230, which averages 6,077 (0.0% delta), followed by the NVIDIA Quadro P2000 at 6,049 (0.5% delta). The A400 is essentially tied with entry-level mobile and older workstation parts.

The single head-to-head result shows the RX 7650 GRE winning 1 out of 1 benchmark comparisons, with the RTX A400 failing to take any recorded win. The OpenCL gap is consistent with the massive difference in average scores: 42,723 versus 6,078, a ratio of roughly 7 to 1. Even accounting for the fact that the A400 has additional benchmark entries (including Vulkan and several Passmark tests) that the RX 7650 GRE lacks, the compute performance disparity is stark. The RX 7650 GRE delivers 22.08 TFLOPS of FP32 throughput, while the RTX A400 delivers 2.706 TFLOPS, an 8.2x gap that aligns with the OpenCL results.

Where Each One Wins

The AMD Radeon RX 7650 GRE wins decisively in raw compute and graphics throughput. Its Geekbench OpenCL score of 83,109 dwarfs the RTX A400's 22,844. The RX 7650 GRE also holds advantages in every measured hardware capability: it has 2,048 shading units versus 768, 128 texture mapping units versus 24, and 64 ROPs versus 16. Its pixel rate is 172.5 GPixel/s compared to 28.19 GPixel/s, and its texture rate is 345.0 GTexel/s versus 42.29 GTexel/s. These figures indicate the RX 7650 GRE is designed for high-resolution gaming and content creation, where pixel and texture throughput matter.

The RTX A400 wins in efficiency and form factor, though the database does not record a benchmark win for it. Its TDP is 50 W versus 170 W for the RX 7650 GRE, and it requires no external power connectors, drawing all power from the PCIe slot. It is a single-slot card measuring 163 mm in length and 69 mm in height, compared to the dual-slot RX 7650 GRE at 204 mm by 115 mm. The A400 also supports 4x mini-DisplayPort 1.4a outputs, which suits multi-display workstation setups, while the RX 7650 GRE uses 1x HDMI 2.1a and 3x DisplayPort 2.1. For tasks that prioritize low power draw, compact size, and multiple display outputs, the RTX A400 has a clear niche. However, in terms of pure computational performance, the RX 7650 GRE is the dominant part.

The RTX A400 does include 24 tensor cores, which the RX 7650 GRE lacks entirely. Tensor cores accelerate AI and deep learning inference workloads. The A400 also has 6 RT cores for ray tracing, versus 32 on the RX 7650 GRE. While the RX 7650 GRE has more RT cores, the A400's tensor core support gives it a feature the AMD card cannot match. The database does not include a direct AI benchmark comparison, so the practical impact of the tensor cores remains unquantified here.

Architecture Differences

The AMD Radeon RX 7650 GRE uses the Navi 33 chip built on RDNA 3.0 architecture, with the codename "Hotpink Bonefish." It is manufactured on a 6 nm process at TSMC, containing 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2 million per square millimeter. The NVIDIA RTX A400 uses the GA107 chip based on Ampere architecture, fabricated on an 8 nm process at Samsung. It has 8,700 million transistors on a 200 mm² die, giving a density of 43.5 million per square millimeter. The RX 7650 GRE's newer process node allows for higher clock speeds: its base clock is 1720 MHz, boost clock is 2695 MHz, and game clock is 2350 MHz. The RTX A400 operates at a base of 1417 MHz and a boost of 1762 MHz, with no recorded game clock.

Memory configurations differ substantially. The RX 7650 GRE has 8 GB of GDDR6 memory on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The RTX A400 has 4 GB of GDDR6 on a 64-bit bus, providing 96.00 GB/s. Memory clocks are also distinct: the RX 7650 GRE runs at 2250 MHz (18 Gbps effective), while the A400 runs at 1500 MHz (12 Gbps effective). The RX 7650 GRE's larger bus and faster memory give it a 3x bandwidth advantage, which is critical for high-resolution textures and compute workloads.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. The RX 7650 GRE has 32 RT cores, while the RTX A400 has 6 RT cores and 24 tensor cores. The RX 7650 GRE has no tensor cores. Shader and texture units also diverge: 2048 shading units, 128 TMUs, and 64 ROPs for the AMD card versus 768 shading units, 24 TMUs, and 16 ROPs for the NVIDIA card. FP16 performance matches FP32 on both cards at a 1:1 ratio, with the RX 7650 GRE at 22.08 TFLOPS and the RTX A400 at 2.706 TFLOPS.

FAQ

Q: Which card has a higher average benchmark score?

A: The AMD Radeon RX 7650 GRE has an average benchmark score of 42,723, compared to 6,078 for the NVIDIA RTX A400. The RX 7650 GRE also ranks at the 83rd percentile of all GPUs, while the RTX A400 ranks at the 35th percentile.

Q: How much faster is the RX 7650 GRE in the Geekbench OpenCL test?

A: The RX 7650 GRE scores 83,109 versus 22,844 for the RTX A400, a delta of 263.8% in favor of the AMD card.

Q: Does the RTX A400 have any unique features compared to the RX 7650 GRE?

A: Yes, the RTX A400 includes 24 tensor cores, which the RX 7650 GRE does not have. The A400 also has 6 RT cores, while the RX 7650 GRE has 32 RT cores.

Q: What are the power requirements for each card?

A: The RX 7650 GRE has a TDP of 170 W and requires a 1x 8-pin power connector, with a suggested PSU of 450 W. The RTX A400 has a TDP of 50 W, requires no external power connectors, and has a suggested PSU of 250 W.

Q: How do the memory bandwidths compare?

A: The RX 7650 GRE offers 288.0 GB/s of bandwidth from 8 GB of GDDR6 on a 128-bit bus. The RTX A400 offers 96.00 GB/s from 4 GB of GDDR6 on a 64-bit bus.

Q: Which card has a smaller physical footprint?

A: The RTX A400 is a single-slot card measuring 163 mm in length and 69 mm in height. The RX 7650 GRE is a dual-slot card measuring 204 mm in length and 115 mm in height.

Specification Differences

| Specification | AMD Radeon RX 7650 GRE | NVIDIA RTX A400 |

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

| Architecture | RDNA 3.0 | Ampere |

| Process Node | 6 nm (TSMC) | 8 nm (Samsung) |

| Transistors | 13,300 million | 8,700 million |

| Die Size | 204 mm² | 200 mm² |

| Transistor Density | 65.2M / mm² | 43.5M / mm² |

| Base Clock | 1720 MHz | 1417 MHz |

| Boost Clock | 2695 MHz | 1762 MHz |

| Memory Clock | 2250 MHz (18 Gbps effective) | 1500 MHz (12 Gbps effective) |

| Memory Size | 8 GB | 4 GB |

| Memory Bus Width | 128 bit | 64 bit |

| Memory Bandwidth | 288.0 GB/s | 96.00 GB/s |

| Shading Units | 2048 | 768 |

| TMUs | 128 | 24 |

| ROPs | 64 | 16 |

| RT Cores | 32 | 6 |

| Tensor Cores | None | 24 |

| Pixel Rate | 172.5 GPixel/s | 28.19 GPixel/s |

| Texture Rate | 345.0 GTexel/s | 42.29 GTexel/s |

| FP32 Performance | 22.08 TFLOPS | 2.706 TFLOPS |

| TDP | 170 W | 50 W |

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

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

| Suggested PSU | 450 W | 250 W |

| Display Outputs | 1x HDMI 2.1a, 3x DisplayPort 2.1 | 4x mini-DisplayPort 1.4a |

| Dimensions (LxH) | 204 mm x 115 mm | 163 mm x 69 mm |

| Release Date | 2025-02-06 | 2024-04-15 |

| Launch MSRP | 279 USD | Not recorded |

The RX 7650 GRE also has a game clock of 2350 MHz, which the RTX A400 does not record. The AMD card is part of the Radeon RX 7000 series with the codename "Hotpink Bonefish," while the RTX A400 belongs to the Workstation Ampere (Ax000) generation. Both cards use PCIe 4.0 x8 interfaces and support identical API versions. The RX 7650 GRE's predecessor is Navi II and its successor is Navi IV; the RTX A400's predecessor is Quadro Turing and its successor is Workstation Ada.