AMD Radeon RX 6900 XT vs AMD Radeon RX 7650 GRE Comparison

Where Each One Wins

The data splits cleanly along generational lines. The AMD Radeon RX 6900 XT wins every head-to-head benchmark recorded in the database, taking 2 wins out of 2 against the RX 7650 GRE. That makes the older flagship the clear choice for raw performance in every measured workload. The RX 6900 XT leads by 74.6% in 3DMark Steel Nomad DX12 and by 125.8% in Geekbench OpenCL, margins that are not close enough to call competitive.

The RX 7650 GRE, however, is not without a use case. Its win column is empty in direct comparisons, but the database shows it sits at the 83rd percentile among all GPUs, which is only 3 points behind the RX 6900 XT's 86th percentile. That proximity to a much heavier card matters in contexts where power, size, and system requirements dominate decision-making. The RX 7650 GRE draws 170 W versus 300 W for the RX 6900 XT, requires a 450 W PSU instead of 700 W, uses a single 8-pin connector rather than two, and fits in a dual-slot design versus a triple-slot one. For compact builds or systems with modest power supplies, the RX 7650 GRE is the only realistic option between these two, even if it loses every benchmark race.

The RX 6900 XT wins on memory capacity and bandwidth as well: 16 GB at 512.0 GB/s versus 8 GB at 288.0 GB/s. That doubles the frame buffer and nearly doubles bandwidth, which matters for high-resolution textures and large datasets. The RX 7650 GRE counters with a much smaller physical footprint (204 mm length versus 267 mm) and a newer display interface set, including 3x DisplayPort 2.1 outputs. So the split is: the RX 6900 XT for maximum performance and memory headroom, the RX 7650 GRE for efficiency, size, and modern display connectivity.

Architecture Differences

The two cards represent two distinct RDNA generations. The RX 6900 XT uses the Navi 21 chip on RDNA 2.0, built on a 7 nm TSMC process. It packs 26,800 million transistors across a 520 mm² die, giving a transistor density of 51.5M per mm². The RX 7650 GRE uses the Navi 33 chip (codename Hotpink Bonefish) on RDNA 3.0, fabricated on a 6 nm TSMC process. That die is far smaller at 204 mm² with 13,300 million transistors, but the density climbs to 65.2M per mm², showing the newer node packs more transistors per area.

The compute resources differ sharply. The RX 6900 XT has 5120 shading units, 320 texture mapping units, 128 ROPs, and 80 ray tracing cores. The RX 7650 GRE has 2048 shading units, 128 TMUs, 64 ROPs, and 32 ray tracing cores. That is a 2.5x gap in shading units, a 2.5x gap in TMUs, and a 2x gap in ROPs and RT cores. The RX 6900 XT also delivers higher pixel rate (288.0 GPixel/s versus 172.5 GPixel/s) and texture rate (720.0 GTexel/s versus 345.0 GTexel/s).

Clock behavior flips the script. The RX 6900 XT has a higher base clock (1825 MHz versus 1720 MHz) and a higher game clock (2015 MHz versus 2350 MHz for the RX 7650 GRE), but the RX 7650 GRE has the higher boost clock at 2695 MHz versus 2250 MHz. Memory clocks also differ: the RX 6900 XT runs at 2000 MHz (16 Gbps effective) while the RX 7650 GRE runs at 2250 MHz (18 Gbps effective). Yet because the RX 7650 GRE uses a 128-bit bus instead of a 256-bit bus, its effective bandwidth drops to 288.0 GB/s versus 512.0 GB/s.

FP32 throughput is nearly identical: 23.04 TFLOPS for the RX 6900 XT and 22.08 TFLOPS for the RX 7650 GRE. That is a surprise given the core count disparity, and it reflects the RDNA 3.0 architecture's higher per-core efficiency. FP16 differs more structurally: the RX 6900 XT does 46.08 TFLOPS at a 2:1 ratio, while the RX 7650 GRE does 22.08 TFLOPS at a 1:1 ratio, meaning the newer card does not double its FP16 rate.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 6900 XT uses PCIe 4.0 x16; the RX 7650 GRE uses PCIe 4.0 x8. The RX 6900 XT was released on 2020-10-27 and is marked end-of-life. The RX 7650 GRE arrived on 2025-02-06 and remains active.

Head-to-Head Benchmarks

The recorded head-to-head data contains only two tests, and the RX 6900 XT wins both by large margins. In 3DMark Steel Nomad DX12, the RX 6900 XT scores 4079 against 2336 for the RX 7650 GRE, a 74.6% advantage. That is a heavy synthetic load that stresses geometry, shading, and memory bandwidth, and the RX 6900 XT's larger memory bus and higher ROP count show through clearly.

In Geekbench OpenCL, the gap widens further. The RX 6900 XT scores 187673 versus 83109, a 125.8% lead. This test is compute-oriented, and the RX 6900 XT's 5120 shading units versus 2048 gives it a massive raw execution advantage, even with the newer architecture's efficiency gains on the RX 7650 GRE.

For context, the database's average benchmark scores place the RX 6900 XT at 50951 and the RX 7650 GRE at 42723. That is a 19.3% gap in average score, which is smaller than the head-to-head deltas because the averages include a wider mix of tests where the newer card's architecture narrows the gap. The RX 6900 XT's nearest rivals in average score are the NVIDIA CMP 50HX (51790, delta -1.6%), the AMD Radeon RX Vega 64 (50001, delta 1.9%), the NVIDIA GeForce RTX 5070 Ti (49957, delta 2%), and the Intel Arc A550M (49737, delta 2.4%). The RX 7650 GRE's nearest rivals are the NVIDIA GeForce RTX 4070 SUPER (43223, delta -1.2%), the NVIDIA Quadro M6000 24 GB (43262, delta -1.2%), the NVIDIA GeForce RTX 5050 Mobile (43268, delta -1.3%), and the NVIDIA Quadro M6000 (43301, delta -1.3%). The RX 6900 XT sits 1.9% ahead of the RX Vega 64 and 2% ahead of the RTX 5070 Ti, while the RX 7650 GRE trails the RTX 4070 SUPER by 1.2%.

FAQ

Q: Which card is faster in 3DMark Steel Nomad DX12?

A: The AMD Radeon RX 6900 XT scores 4079 versus 2336 for the RX 7650 GRE, a 74.6% lead.

Q: How large is the OpenCL performance gap?

A: The RX 6900 XT scores 187673 in Geekbench OpenCL, while the RX 7650 GRE scores 83109, a 125.8% difference.

Q: Does the RX 7650 GRE have any architectural advantage?

A: It is built on RDNA 3.0 with a 6 nm process versus RDNA 2.0 on 7 nm, and it reaches a higher boost clock (2695 MHz versus 2250 MHz), but it loses in every recorded benchmark.

Q: How do memory capacities differ?

A: The RX 6900 XT has 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The RX 7650 GRE has 8 GB on a 128-bit bus with 288.0 GB/s bandwidth.

Q: Which card requires less power?

A: The RX 7650 GRE has a 170 W TDP and suggests a 450 W PSU, while the RX 6900 XT has a 300 W TDP and suggests a 700 W PSU.

Q: Are both cards in production?

A: No. The RX 6900 XT is end-of-life, while the RX 7650 GRE is active.

Specification Differences

| Specification | AMD Radeon RX 6900 XT | AMD Radeon RX 7650 GRE |

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

| Architecture | RDNA 2.0 | RDNA 3.0 |

| Chip | Navi 21 | Navi 33 |

| Process node | 7 nm | 6 nm |

| Transistors | 26,800 million | 13,300 million |

| Die size | 520 mm² | 204 mm² |

| Transistor density | 51.5M / mm² | 65.2M / mm² |

| Base clock | 1825 MHz | 1720 MHz |

| Boost clock | 2250 MHz | 2695 MHz |

| Game clock | 2015 MHz | 2350 MHz |

| Memory clock | 2000 MHz, 16 Gbps effective | 2250 MHz, 18 Gbps effective |

| Memory size | 16 GB | 8 GB |

| Memory bus | 256 bit | 128 bit |

| Memory bandwidth | 512.0 GB/s | 288.0 GB/s |

| Shading units | 5120 | 2048 |

| TMUs | 320 | 128 |

| ROPs | 128 | 64 |

| Ray tracing cores | 80 | 32 |

| Pixel rate | 288.0 GPixel/s | 172.5 GPixel/s |

| Texture rate | 720.0 GTexel/s | 345.0 GTexel/s |

| FP32 | 23.04 TFLOPS | 22.08 TFLOPS |

| FP16 | 46.08 TFLOPS (2:1) | 22.08 TFLOPS (1:1) |

| TDP | 300 W | 170 W |

| Slot width | Triple-slot | Dual-slot |

| Power connectors | 2x 8-pin | 1x 8-pin |

| Suggested PSU | 700 W | 450 W |

| Bus interface | PCIe 4.0 x16 | PCIe 4.0 x8 |

| Display outputs | 1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C | 1x HDMI 2.1a, 3x DisplayPort 2.1 |

| Dimensions | 267 mm length, 120 mm height, 50 mm width | 204 mm length, 115 mm height |

| Production status | End-of-life | Active |

| Release date | 2020-10-27 | 2025-02-06 |

| Launch MSRP | 999 USD | 279 USD |

The Verdict

The benchmark data is unambiguous: the AMD Radeon RX 6900 XT is the faster card in every recorded test. It wins 2 head-to-head tests, leads by 74.6% in Steel Nomad DX12, and by 125.8% in OpenCL. It also carries double the memory (16 GB versus 8 GB), more than double the bandwidth (512.0 GB/s versus 288.0 GB/s), and a much larger compute core configuration. Anyone prioritizing raw performance, high-resolution texture workloads, or compute-heavy tasks should choose the RX 6900 XT, provided the system can handle its 300 W TDP and triple-slot footprint. Its average benchmark score of 50951 also places it in a higher competitive bracket, sitting 2% ahead of the NVIDIA GeForce RTX 5070 Ti and 1.9% ahead of the AMD Radeon RX Vega 64.

The RX 7650 GRE makes sense only when constraints override performance. It operates at 170 W, needs a 450 W PSU, uses a single 8-pin connector, and fits in a dual-slot chassis. It is also an active product with newer display outputs (3x DisplayPort 2.1) and a much smaller die. Its average score of 42723 sits just 1.2% behind the NVIDIA GeForce RTX 4070 SUPER, so it is competitive within its own performance class. But against the RX 6900 XT, it loses every benchmark, and the average score gap of 19.3% is decisive. The data supports a simple verdict: the RX 6900 XT for performance, the RX 7650 GRE for efficiency and modern connectivity, with no scenario where the newer card outperforms the older one in measured tests.