AMD Radeon RX 6650M XT vs NVIDIA RTX 4500 Ada Generation Comparison

Head-to-Head Benchmarks

The database contains a single head-to-head comparison between the NVIDIA RTX 4500 Ada Generation and the AMD Radeon RX 6650M XT, and the result is decisively one-sided. In the Geekbench OpenCL test, the NVIDIA RTX 4500 Ada Generation scores 160786 points, while the AMD Radeon RX 6650M XT scores 76904 points. That represents a 109.1% advantage for the NVIDIA part, meaning it more than doubles the AMD mobile GPU's raw compute throughput in this workload.

To put that margin into context, look at where each card sits relative to its own competitive set. The RTX 4500 Ada Generation posts an average benchmark score of 166094 across all recorded tests, placing it in the 97th percentile of all GPUs in the database. Its nearest rivals are the NVIDIA RTX A5500 at 165217 (a 0.5% deficit for the 4500), the AMD Radeon PRO W7800 at 164894 (0.7% behind), the AMD Radeon Pro W6900X at 168574 (1.5% ahead of the 4500), and the NVIDIA A100 PCIe 40 GB at 162504 (2.2% behind the 4500). These are all tightly clustered scores, indicating that the RTX 4500 Ada Generation sits in a highly competitive performance tier where a few percentage points separate adjacent products.

The AMD Radeon RX 6650M XT, by contrast, has an average benchmark score of 76904, placing it in the 91st percentile of all GPUs. Its nearest rivals are the NVIDIA GeForce RTX 5090 D at 77712 (the 6650M XT trails by 1%), the AMD Radeon RX 6850M XT at 78940 (2.6% behind), the NVIDIA Tesla P100 PCIe 12 GB at 79396 (3.1% behind), and the NVIDIA Tesla P100 PCIe 16 GB at 79605 (3.4% behind). While the 6650M XT is competitive within its immediate peer group, that peer group operates at roughly half the absolute performance level of the RTX 4500 Ada Generation's circle.

The data shows a clean sweep: the NVIDIA RTX 4500 Ada Generation wins the only head-to-head benchmark recorded, and it does so by a landslide margin. The 109.1% delta is not a subtle edge; it is a fundamental performance stratification between a workstation-class desktop GPU and a mobile gaming-oriented part. The RTX 4500 Ada Generation also holds the advantage in percentile ranking, sitting 6 points higher than the RX 6650M XT in the all-GPU distribution.

FAQ

Q: Which GPU is faster in the Geekbench OpenCL benchmark?

A: The NVIDIA RTX 4500 Ada Generation scores 160786 points versus 76904 points for the AMD Radeon RX 6650M XT, giving the NVIDIA card a 109.1% lead in that test.

Q: How does the RTX 4500 Ada Generation compare to its closest rivals?

A: The RTX 4500 Ada Generation's average benchmark score is 166094. It sits within 2.2% of the NVIDIA A100 PCIe 40 GB (162504) and within 1.5% of the AMD Radeon Pro W6900X (168574), with the RTX A5500 (165217) and Radeon PRO W7800 (164894) also within 0.7% on either side.

Q: How does the RX 6650M XT compare to its closest rivals?

A: The RX 6650M XT's average benchmark score is 76904. It trails the NVIDIA GeForce RTX 5090 D by 1% (77712), the AMD Radeon RX 6850M XT by 2.6% (78940), the NVIDIA Tesla P100 PCIe 12 GB by 3.1% (79396), and the NVIDIA Tesla P100 PCIe 16 GB by 3.4% (79605).

Q: What is the percentile ranking of each GPU?

A: The NVIDIA RTX 4500 Ada Generation ranks in the 97th percentile of all GPUs in the database, while the AMD Radeon RX 6650M XT ranks in the 91st percentile.

Q: Are there any benchmark tests where the AMD card wins?

A: No. The database records a single head-to-head benchmark (Geekbench OpenCL), and the NVIDIA RTX 4500 Ada Generation wins that test. The win count is 1 for NVIDIA and 0 for AMD.

Q: What is the production status of each GPU?

A: The NVIDIA RTX 4500 Ada Generation is listed as Active, while the AMD Radeon RX 6650M XT is listed as End-of-life.

Architecture Differences

The two GPUs come from fundamentally different design philosophies and process technologies. The NVIDIA RTX 4500 Ada Generation uses the AD103 chip built on a 5 nm process at TSMC, packing 45,900 million transistors into a 379 mm² die. That yields a transistor density of 121.1 million transistors per square millimeter. The AMD Radeon RX 6650M XT uses the Navi 23 chip on a 7 nm process, also from TSMC, with 11,060 million transistors on a 237 mm² die, for a density of 46.7 million per square millimeter. The NVIDIA chip is roughly four times larger in transistor count and nearly 2.6 times denser.

The architectural lineage also diverges sharply. NVIDIA's part is based on Ada Lovelace, the generation that powers the GeForce 40-series, and it is positioned as a workstation product with the predecessor being Workstation Ampere and the successor being Blackwell PRO W. AMD's part is based on RDNA 2.0, from the Radeon RX 6000 series, and it is a mobile part (Navi Mobile, RX 6000M) whose predecessor is Polaris Mobile. The release dates reflect this gap: the RTX 4500 Ada Generation launched on 2023-08-08, while the RX 6650M XT launched on 2022-01-03.

Compute resources differ dramatically. The NVIDIA card has 7680 shading units, 240 texture mapping units, 80 ROPs, 60 RT cores, and 240 tensor cores. The AMD card has 2048 shading units, 128 TMUs, 64 ROPs, and 32 RT cores, with no tensor cores listed. The FP32 throughput tells the story: 39.63 TFLOPS for NVIDIA versus 9.896 TFLOPS for AMD. Interestingly, the AMD card offers FP16 at 19.79 TFLOPS with a 2:1 ratio relative to FP32, while the NVIDIA card provides FP16 at 39.63 TFLOPS with a 1:1 ratio, meaning NVIDIA does not sacrifice half-rate FP16 performance.

Memory configurations are equally divergent. The RTX 4500 Ada Generation carries 24 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s of bandwidth. The RX 6650M XT has 8 GB of GDDR6 on a 128-bit bus, yielding 256.0 GB/s. The NVIDIA card's memory clock is listed as 2250 MHz with 18 Gbps effective, while the AMD card runs at 2000 MHz with 16 Gbps effective. Clock speeds on the GPU cores are closer: the NVIDIA base is 2070 MHz with a boost of 2580 MHz, while the AMD base is 2068 MHz with a boost of 2416 MHz and a game clock of 2162 MHz. Despite similar base clocks, the NVIDIA card's massive shading unit advantage produces a 4x gap in FP32 compute.

Power and physical characteristics also separate the two. The RTX 4500 Ada Generation has a TDP of 210 W, is dual-slot, uses no external power connectors, and recommends a 550 W PSU. It measures 245 mm in length and 112 mm in height, with a PCIe 4.0 x16 interface and four DisplayPort 1.4a outputs. The RX 6650M XT has a TDP of 120 W, is listed as IGP (integrated graphics processor) form factor, has no power connectors, and no suggested PSU. Its bus interface is PCIe 4.0 x8, and its display outputs are listed as portable device dependent. The mobile part has no recorded dimensions.

The Verdict

The data points to a straightforward choice for most users, but the decision depends entirely on the use case. The NVIDIA RTX 4500 Ada Generation is the clear performance leader in raw compute, with a 109.1% advantage in the sole head-to-head benchmark and a 97th percentile ranking versus the AMD part's 91st percentile. It offers 24 GB of memory versus 8 GB, 432.0 GB/s of bandwidth versus 256.0 GB/s, and a 4x lead in FP32 throughput. For workstation workloads, large dataset handling, or any task that scales with shader count and memory capacity, the RTX 4500 Ada Generation is the only rational choice from this comparison.

The AMD Radeon RX 6650M XT, however, is a mobile part with a 120 W TDP, no slot width (IGP form factor), and an end-of-life production status. It is not a direct competitor to a dual-slot workstation card; it belongs in a laptop or compact system where power draw is the primary constraint. Its 91st percentile ranking is respectable, and it holds its own against the NVIDIA GeForce RTX 5090 D (within 1%) and the AMD Radeon RX 6850M XT (within 2.6%). But those rivals are themselves far below the RTX 4500 Ada Generation's performance tier.

The verdict from the recorded data is unambiguous: if performance is the sole criterion, the NVIDIA RTX 4500 Ada Generation wins by a landslide. If the system requires a low-power mobile GPU, the RX 6650M XT is a capable part within its own class, but it cannot match the workstation card's absolute throughput, memory capacity, or bandwidth. The RTX 4500 Ada Generation is also the newer product, released in 2023 versus 2022, and it remains active in production while the AMD part is end-of-life. The choice is not about value or preference; it is about whether the workload demands desktop workstation performance or mobile efficiency.

Specification Differences

The following fields differ between the NVIDIA RTX 4500 Ada Generation and the AMD Radeon RX 6650M XT:

• Series: GeForce 40-series versus Radeon RX 6000 series
• Chip: AD103 versus Navi 23
• Architecture: Ada Lovelace versus RDNA 2.0
• Generation: Workstation Ada versus Navi Mobile (RX 6000M)
• Process node: 5 nm versus 7 nm
• Transistors: 45,900 million versus 11,060 million
• Die size: 379 mm² versus 237 mm²
• Transistor density: 121.1M / mm² versus 46.7M / mm²
• Base clock: 2070 MHz versus 2068 MHz
• Boost clock: 2580 MHz versus 2416 MHz
• Game clock: not listed versus 2162 MHz
• Memory clock: 2250 MHz (18 Gbps effective) versus 2000 MHz (16 Gbps effective)
• Memory size: 24 GB versus 8 GB
• Memory bus width: 192 bit versus 128 bit
• Memory bandwidth: 432.0 GB/s versus 256.0 GB/s
• Shading units: 7680 versus 2048
• TMUs: 240 versus 128
• ROPs: 80 versus 64
• RT cores: 60 versus 32
• Tensor cores: 240 versus not listed
• Pixel rate: 206.4 GPixel/s versus 154.6 GPixel/s
• Texture rate: 619.2 GTexel/s versus 309.2 GTexel/s
• FP32 performance: 39.63 TFLOPS versus 9.896 TFLOPS
• FP16 performance: 39.63 TFLOPS (1:1) versus 19.79 TFLOPS (2:1)
• TDP: 210 W versus 120 W
• Slot width: Dual-slot versus IGP
• Suggested PSU: 550 W versus not listed
• Bus interface: PCIe 4.0 x16 versus PCIe 4.0 x8
• Display outputs: 4x DisplayPort 1.4a versus Portable Device Dependent
• Dimensions: 245 mm length, 112 mm height versus not listed
• Production status: Active versus End-of-life
• Release date: 2023-08-08 versus 2022-01-03
• Predecessor: Workstation Ampere versus Polaris Mobile
• Successor: Blackwell PRO W versus not listed
• Benchmark scores: Geekbench OpenCL 160786 and Vulkan 171401 versus Geekbench OpenCL 76904
• Average benchmark score: 166094 versus 76904
• Percentile vs all GPUs: 97 versus 91