AMD Radeon RX 7650 GRE vs NVIDIA RTX A6000 Comparison

The NVIDIA RTX A6000 decisively outperforms the AMD Radeon RX 7650 GRE in the available cross-benchmark data, yet the two cards occupy vastly different market positions. The RTX A6000 is an end-of-life workstation behemoth with a 133.4% lead in Geekbench OpenCL, while the RX 7650 GRE is an active, mainstream RDNA 3 part. The data shows that raw performance is not the only differentiator; memory capacity, power requirements, and target workload compatibility separate these two fundamentally different products.

Head-to-Head Benchmarks

The only shared benchmark between the two cards is Geekbench OpenCL, where the NVIDIA RTX A6000 scores 193,937 against the AMD Radeon RX 7650 GRE’s 83,109. This represents a delta of 133.4%, meaning the RTX A6000 delivers more than double the compute throughput in this test. The margin is staggering and reflects the A6000’s workstation-class silicon, which is designed for sustained, heavy compute loads rather than consumer gaming.

The RTX A6000’s average benchmark score of 44,075 places it in the 84th percentile of all GPUs, with its nearest rivals being the NVIDIA GeForce RTX 4070 Ti (44,795, -1.6% delta), the RTX 4090 Mobile (43,667, 0.9% delta), and the Quadro M6000 (43,301, 1.8% delta). This positioning shows that the A6000 sits just below the RTX 4070 Ti in aggregate performance but remains competitive with top-tier consumer and mobile parts despite being several years older.

The AMD Radeon RX 7650 GRE, by contrast, has an average benchmark score of 42,723, placing it in the 83rd percentile. Its nearest rivals include the NVIDIA GeForce RTX 4070 SUPER (43,223, -1.2% delta) and the Quadro M6000 24 GB (43,262, -1.2% delta). The RX 7650 GRE is within 1.3% of these cards, indicating that it trades blows with mid-to-high-end consumer GPUs, but it sits 1,352 points (approximately 3.2%) behind the RTX A6000 in average score.

In the head-to-head OpenCL test, the RTX A6000’s win is absolute. The card also has a single benchmark win (winsA: 1) versus zero for the RX 7650 GRE (winsB: 0). However, the RX 7650 GRE has a separate 3DMark Steel Nomad DX12 score of 2,336, which is not available for the A6000, suggesting that in modern gaming-focused DirectX 12 workloads, the AMD card can at least produce a measurable result, though no direct comparison is possible.

Where Each One Wins

The NVIDIA RTX A6000 wins outright in raw compute throughput. Its Geekbench OpenCL score of 193,937 is more than double the RX 7650 GRE’s 83,109, making it the clear choice for any workload that leverages OpenCL, whether that is scientific simulation, rendering, or machine learning inference. The A6000 also holds a substantial advantage in memory bandwidth at 768.0 GB/s versus 288.0 GB/s, which directly benefits large dataset processing and multi-tasking across multiple applications. With 48 GB of GDDR6 memory, the A6000 can hold entire models or scenes in VRAM without spilling to system memory, a capability the 8 GB RX 7650 GRE cannot match.

The AMD Radeon RX 7650 GRE wins in efficiency and modern architecture features. It is built on a 6 nm TSMC process versus the A6000’s 8 nm Samsung node, leading to a lower 170 W TDP versus 300 W. This means the RX 7650 GRE can be powered by a 450 W PSU, while the A6000 requires a 700 W unit. The RX 7650 GRE also has a higher boost clock at 2695 MHz versus 1800 MHz, and it supports DisplayPort 2.1 outputs, whereas the A6000 is limited to DisplayPort 1.4a. For gamers or professionals who prioritize lower power draw and modern display connectivity, the RX 7650 GRE is the more practical choice, but it gives up massive compute headroom.

Architecture Differences

The architectural gap between these two cards is profound. The NVIDIA RTX A6000 uses the GA102 chip on the Ampere architecture, manufactured on Samsung’s 8 nm process. It packs 28,300 million transistors onto a 628 mm² die, yielding a transistor density of 45.1 million per mm². The RX 7650 GRE uses the Navi 33 chip on AMD’s RDNA 3.0 architecture, built on TSMC’s 6 nm process. It contains 13,300 million transistors on a 204 mm² die, with a higher density of 65.2 million per mm². The A6000’s die is over three times larger, which explains its massive compute resources.

The A6000 features 10,752 shading units, 336 texture mapping units, and 112 ROPs, alongside 84 RT cores and 336 tensor cores. The RX 7650 GRE has 2,048 shading units, 128 TMUs, and 64 ROPs, with 32 RT cores and no tensor cores. This disparity is reflected in the pixel and texture rates: the A6000 achieves 201.6 GPixel/s and 604.8 GTexel/s, while the RX 7650 GRE manages 172.5 GPixel/s and 345.0 GTexel/s. The A6000’s FP32 compute is 38.71 TFLOPS versus 22.08 TFLOPS for the RX 7650 GRE, a 75% advantage for NVIDIA.

Memory architecture also diverges sharply. The A6000 uses a 384-bit bus with 48 GB of GDDR6 at 16 Gbps effective, delivering 768.0 GB/s bandwidth. The RX 7650 GRE uses a 128-bit bus with 8 GB of GDDR6 at 18 Gbps effective, yielding 288.0 GB/s. The A6000’s bus width is triple that of the AMD part, and its memory capacity is six times larger. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical, but the underlying hardware capabilities are vastly different.

The Verdict

The data unequivocally shows that the NVIDIA RTX A6000 is the superior performer for compute-heavy professional workloads. Its 133.4% lead in OpenCL and 75% lead in FP32 throughput make it the only choice for tasks that demand maximum parallel processing. The 48 GB memory pool and 768.0 GB/s bandwidth further cement its position for large-scale data handling, high-resolution rendering, and AI model training. The A6000’s 84th percentile ranking and proximity to the RTX 4070 Ti in average score confirm that it remains a top-tier GPU even at end-of-life.

The AMD Radeon RX 7650 GRE is for a different audience entirely. Its 83rd percentile ranking and near-parity with the RTX 4070 SUPER (-1.2% delta) show it is a capable mid-range card, but it cannot compete with the A6000 in raw compute. The RX 7650 GRE wins on efficiency, with a 170 W TDP versus 300 W, a smaller 204 mm² die, and a more modern 6 nm process. It also offers DisplayPort 2.1, which the A6000 lacks. For gamers or entry-level content creators who need modest compute, modern display outputs, and low power consumption, the RX 7650 GRE is the pragmatic pick. For professionals who need maximum compute and memory, the RTX A6000 is the only rational choice from the data.

FAQ

Q: Which GPU has a higher Geekbench OpenCL score?

A: The NVIDIA RTX A6000 scores 193,937, which is 133.4% higher than the AMD Radeon RX 7650 GRE’s 83,109.

Q: How does the RX 7650 GRE compare to the RTX A6000 in average benchmark score?

A: The RTX A6000 has an average benchmark score of 44,075, while the RX 7650 GRE scores 42,723, putting the A6000 ahead by 1,352 points.

Q: What is the memory capacity difference?

A: The RTX A6000 has 48 GB of GDDR6 memory on a 384-bit bus, while the RX 7650 GRE has 8 GB of GDDR6 on a 128-bit bus.

Q: Which card has a higher boost clock?

A: The AMD Radeon RX 7650 GRE has a boost clock of 2695 MHz, compared to the NVIDIA RTX A6000’s 1800 MHz.

Q: What are the power consumption figures?

A: The RTX A6000 has a 300 W TDP and requires a 700 W PSU, while the RX 7650 GRE has a 170 W TDP and requires a 450 W PSU.

Q: Does the RX 7650 GRE have tensor cores?

A: No, the RX 7650 GRE has null tensor cores, whereas the RTX A6000 has 336 tensor cores.

Specification Differences

| Field | NVIDIA RTX A6000 | AMD Radeon RX 7650 GRE |

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

| Chip | GA102 | Navi 33 |

| Architecture | Ampere | RDNA 3.0 |

| Process Node | 8 nm | 6 nm |

| Foundry | Samsung | TSMC |

| Transistors | 28,300 million | 13,300 million |

| Die Size | 628 mm² | 204 mm² |

| Transistor Density | 45.1M / mm² | 65.2M / mm² |

| Base Clock | 1410 MHz | 1720 MHz |

| Boost Clock | 1800 MHz | 2695 MHz |

| Memory Clock | 16 Gbps effective | 18 Gbps effective |

| Memory Size | 48 GB | 8 GB |

| Memory Type | GDDR6 | GDDR6 |

| Memory Bus Width | 384 bit | 128 bit |

| Memory Bandwidth | 768.0 GB/s | 288.0 GB/s |

| Shading Units | 10752 | 2048 |

| TMUs | 336 | 128 |

| ROPs | 112 | 64 |

| RT Cores | 84 | 32 |

| Tensor Cores | 336 | null |

| Pixel Rate | 201.6 GPixel/s | 172.5 GPixel/s |

| Texture Rate | 604.8 GTexel/s | 345.0 GTexel/s |

| FP32 | 38.71 TFLOPS | 22.08 TFLOPS |

| FP16 | 38.71 TFLOPS (1:1) | 22.08 TFLOPS (1:1) |

| TDP | 300 W | 170 W |

| Power Connectors | 8-pin EPS | 1x 8-pin |

| Suggested PSU | 700 W | 450 W |

| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |

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

| Length | 267 mm | 204 mm |

| Height | 112 mm | 115 mm |

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

| Release Date | 2020-10-04 | 2025-02-06 |

| Launch MSRP | 4,649 USD | 279 USD |