AMD Radeon RX 6650M vs NVIDIA RTX 5000 Ada Generation Comparison

The Verdict

The data presents a decisive matchup. The NVIDIA RTX 5000 Ada Generation wins both recorded head-to-head benchmarks, making it the clear performance leader in this comparison. Its average benchmark score of 184,664 places it in the 98th percentile of all GPUs, while the AMD Radeon RX 6650M sits at 71,768 in the 91st percentile. The RTX 5000 Ada leads by 166.4% in Geekbench OpenCL and 149.6% in Geekbench Vulkan. For users requiring maximum compute throughput in professional workloads, the NVIDIA card is the only choice based on this data. The AMD RX 6650M, while lower in absolute performance, remains a viable option for mobile systems where power draw is a priority, consuming 120 W versus 250 W. However, strictly from benchmark results, the NVIDIA RTX 5000 Ada Generation wins across the board.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The NVIDIA RTX 5000 Ada Generation uses the AD102 chip built on a 5 nm process at TSMC with an Ada Lovelace architecture. It packs 76,300 million transistors on a 609 mm² die, resulting in a transistor density of 125.3 million per square millimeter. The AMD Radeon RX 6650M uses the Navi 23 chip on a 7 nm process, also from TSMC, with an RDNA 2.0 architecture. This chip contains 11,060 million transistors on a 237 mm² die, giving a density of 46.7 million per square millimeter.

The compute resources differ drastically. The RTX 5000 Ada features 12,800 shading units, 400 texture mapping units, 176 ROPs, 100 RT cores, and 400 tensor cores. The RX 6650M has 1,792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores, with no tensor cores listed. The NVIDIA card also supports FP16 at a 1:1 ratio with FP32, while the AMD card runs FP16 at a 2:1 ratio. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA card uses a PCIe 4.0 x16 interface, while the AMD card uses PCIe 4.0 x8. The RTX 5000 Ada is a dual-slot card with a 16-pin power connector, whereas the RX 6650M is an IGP (integrated graphics processor) with no power connectors and portable-device-dependent outputs.

Where Each One Wins

The RTX 5000 Ada Generation wins in every measured category, but the magnitude of its advantage varies by workload. In OpenCL, it scores 175,286 versus 65,800, a 166.4% lead. This suggests a massive advantage in general-purpose compute tasks that leverage OpenCL. In Vulkan, the gap narrows slightly but remains enormous: 194,041 versus 77,735, a 149.6% lead. The RTX 5000 Ada also holds higher theoretical rates: its pixel rate is 448.8 GPixel/s versus 154.6 GPixel/s, and its texture rate is 1,020.0 GTexel/s versus 270.6 GTexel/s. FP32 performance is 65.28 TFLOPS versus 8.659 TFLOPS.

The RX 6650M does have one notable advantage: power efficiency is not directly measured, but its 120 W TDP is less than half of the 250 W TDP of the RTX 5000 Ada. For mobile platforms where thermal and power budgets are constrained, the AMD card is the only feasible option given its IGP form factor. The RX 6650M also has a higher base clock at 2068 MHz versus 1155 MHz, though the boost clock is lower at 2416 MHz versus 2550 MHz. Its game clock is listed at 2222 MHz. The AMD card is also end-of-life, while the NVIDIA card remains active in production.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA RTX 5000 Ada Generation scores 184,664 on average, compared to 71,768 for the AMD Radeon RX 6650M. This puts the NVIDIA card in the 98th percentile of all GPUs and the AMD card in the 91st percentile.

Q: How much faster is the RTX 5000 Ada in OpenCL?

A: It scores 175,286 versus 65,800, a 166.4% lead. This is the largest single-benchmark gap recorded between the two cards.

Q: Does the RX 6650M win in any benchmark?

A: No. The database records 2 wins for the NVIDIA card and 0 for the AMD card across the two head-to-head tests (Geekbench OpenCL and Geekbench Vulkan).

Q: What is the memory configuration difference?

A: The RTX 5000 Ada has 32 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth. The RX 6650M has 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth.

Q: Which card is more suitable for a laptop?

A: The RX 6650M is an IGP with a 120 W TDP and no power connectors, making it designed for portable devices. The RTX 5000 Ada is a dual-slot card requiring a 250 W TDP and a 16-pin connector, which is not portable-device dependent.

Q: Are both cards using the same manufacturing process?

A: No. The RTX 5000 Ada uses a 5 nm process, while the RX 6650M uses a 7 nm process. Both are fabricated by TSMC.

Head-to-Head Benchmarks

The two recorded benchmark tests show a consistent and overwhelming trend. In Geekbench OpenCL, the RTX 5000 Ada Generation posts 175,286 points, while the RX 6650M trails at 65,800 points. The delta of 166.4% is the largest margin in this comparison. This test typically stresses raw compute throughput, and the NVIDIA card's 12,800 shading units and 65.28 TFLOPS FP32 performance provide a massive advantage over the AMD card's 1,792 shading units and 8.659 TFLOPS.

In Geekbench Vulkan, the RTX 5000 Ada scores 194,041 versus 77,735 for the RX 6650M, a 149.6% lead. Interestingly, the NVIDIA card performs better in Vulkan than in OpenCL (194,041 vs 175,286), while the AMD card also improves in Vulkan (77,735 vs 65,800). The relative gap narrows slightly in Vulkan, but the absolute difference remains substantial: 116,306 points. The RTX 5000 Ada's nearest rivals in the database are the NVIDIA A100 SXM4 80 GB (0.5% higher average score), the A100 SXM4 40 GB (-1.3%), the RTX PRO 5000 Blackwell (1.4%), and the GeForce RTX 4090 D (3.7%). The RX 6650M's nearest rivals are the NVIDIA TITAN X Pascal (-0.5%), AMD Radeon Pro Vega 64 (-0.8%), AMD Radeon RX 6600 LE (1.3%), and AMD Radeon Vega Frontier Edition (-2.2%). This positioning confirms that the RTX 5000 Ada competes in the enterprise-class segment, while the RX 6650M sits alongside older flagship gaming cards.

Specification Differences

The two GPUs differ in nearly every specification field. The RTX 5000 Ada uses the AD102 chip on a 5 nm process with 76,300 million transistors and a 609 mm² die. The RX 6650M uses Navi 23 on 7 nm with 11,060 million transistors and a 237 mm² die. Clock speeds: the NVIDIA card has a base of 1155 MHz and boost of 2550 MHz, while the AMD card has a base of 2068 MHz, boost of 2416 MHz, and a game clock of 2222 MHz. Memory: 32 GB GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth versus 8 GB GDDR6 on a 128-bit bus with 224.0 GB/s. The memory clock is 2250 MHz (18 Gbps effective) for NVIDIA and 1750 MHz (14 Gbps effective) for AMD.

Compute units: 12,800 shading units, 400 TMUs, 176 ROPs, 100 RT cores, and 400 tensor cores versus 1,792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores (no tensor cores). Pixel rate is 448.8 GPixel/s versus 154.6 GPixel/s. Texture rate is 1,020.0 GTexel/s versus 270.6 GTexel/s. FP32 performance is 65.28 TFLOPS versus 8.659 TFLOPS. FP16 performance is 65.28 TFLOPS (1:1) versus 17.32 TFLOPS (2:1). Power: 250 W versus 120 W TDP. The NVIDIA card is dual-slot with a 16-pin connector and a 600 W suggested PSU; the AMD card is an IGP with no connectors and no suggested PSU. Bus interface: PCIe 4.0 x16 versus PCIe 4.0 x8. Display outputs: 4x DisplayPort 1.4a versus portable-device-dependent. The NVIDIA card is 267 mm long and 112 mm high, while the AMD card has no listed dimensions. Production status is Active versus End-of-life. Release dates are 2023-08-08 versus 2022-01-03. The predecessor and successor differ: Workstation Ampere to Blackwell PRO W for NVIDIA, and Polaris Mobile with no successor for AMD.