AMD Radeon RX 6650M XT vs NVIDIA RTX A5500 Comparison

FAQ

Q: How does the NVIDIA RTX A5500 compare to the AMD Radeon RX 6650M XT in overall benchmark performance?

A: The RTX A5500 holds a decisive lead. Its average benchmark score is 165,217, placing it in the 97th percentile of all GPUs, while the RX 6650M XT averages 76,904, landing in the 91st percentile. In the single head-to-head test (Geekbench OpenCL), the A5500 scores 174,637 versus 76,904, a 127.1% advantage.

Q: Which GPU has more memory, and how does that affect bandwidth?

A: The RTX A5500 ships with 24 GB of GDDR6 on a 384-bit bus, delivering 768.0 GB/s of bandwidth. The RX 6650M XT has 8 GB of GDDR6 on a 128-bit bus, yielding 256.0 GB/s. The A5500 offers three times the memory capacity and exactly three times the bandwidth.

Q: Are these GPUs suited for the same type of system?

A: No. The RTX A5500 is a dual-slot, 230 W workstation card requiring a 550 W power supply and a single 8-pin connector. The RX 6650M XT is an integrated-class mobile GPU (IGP) with a 120 W TDP, no power connectors, and dimensions dependent on the portable device in which it is installed.

Q: What are the architectural differences between the two?

A: The RTX A5500 uses NVIDIA's Ampere architecture (GA102 chip) on an 8 nm Samsung process, while the RX 6650M XT uses AMD's RDNA 2.0 architecture (Navi 23 chip) on a 7 nm TSMC process. The A5500 integrates 80 RT cores and 320 tensor cores; the RX 6650M XT has 32 RT cores and no tensor cores.

Q: Which GPU has higher clock speeds?

A: The RX 6650M XT runs significantly higher clocks: a 2068 MHz base and 2416 MHz boost, with a 2162 MHz game clock. The RTX A5500 has a 1080 MHz base and 1665 MHz boost. Despite lower clocks, the A5500's far larger compute pipeline delivers much higher throughput.

Q: Does either GPU support modern graphics APIs?

A: Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has an advantage in API compatibility.

Architecture Differences

The NVIDIA RTX A5500 and AMD Radeon RX 6650M XT represent fundamentally different design philosophies. The A5500 is built on NVIDIA's Ampere architecture using the GA102 chip, fabricated by Samsung on an 8 nm process. This is a massive die: 628 mm² housing 28,300 million transistors, for a density of 45.1 million per mm². The RX 6650M XT uses AMD's RDNA 2.0 architecture with the Navi 23 chip, built by TSMC on a 7 nm process. Its die is 237 mm² with 11,060 million transistors, yielding a slightly higher density of 46.7 million per mm².

The compute resources differ enormously. The A5500 fields 10,240 shading units, 320 texture mapping units, and 96 ROPs. It also carries 80 RT cores and 320 tensor cores, the latter enabling dedicated AI acceleration. The RX 6650M XT has 2,048 shading units, 128 TMUs, and 64 ROPs, with 32 RT cores but no tensor cores at all. This structural gap explains why the A5500 achieves 34.10 TFLOPS of FP32 performance versus 9.896 TFLOPS for the AMD part. In FP16, the A5500 again delivers 34.10 TFLOPS (1:1 ratio), while the RX 6650M XT reaches 19.79 TFLOPS (2:1 ratio).

Memory architecture is another divider. The A5500 uses a 384-bit bus with 24 GB of GDDR6, producing 768.0 GB/s of bandwidth. The RX 6650M XT is limited to a 128-bit bus with 8 GB, for 256.0 GB/s. Both run memory at 2000 MHz with 16 Gbps effective speed, but the bus width is the decisive factor. Pixel and texture rates follow suit: the A5500 posts 159.8 GPixel/s and 532.8 GTexel/s, versus 154.6 GPixel/s and 309.2 GTexel/s for the RX 6650M XT. Notably, pixel rates are close, but texture throughput favors the NVIDIA card by a wide margin.

Power and physical design differ sharply. The A5500 is a dual-slot card rated at 230 W, requiring a 550 W power supply and one 8-pin connector. It measures 267 mm in length and 112 mm in height. The RX 6650M XT is an IGP (integrated graphics processor) for mobile devices, rated at 120 W, with no power connectors and no listed dimensions. The A5500 connects via PCIe 4.0 x16, while the RX 6650M XT uses PCIe 4.0 x8. Display outputs also diverge: the A5500 provides 4x DisplayPort 1.4a, whereas the RX 6650M XT's outputs are portable-device dependent.

Both GPUs are end-of-life products. The A5500 launched on March 21, 2022, succeeding Quadro Turing and followed by Workstation Ada. The RX 6650M XT launched earlier on January 3, 2022, succeeding Polaris Mobile with no recorded successor.

Head-to-Head Benchmarks

The database contains one direct comparison between these two GPUs, and it is lopsided. In Geekbench OpenCL, the NVIDIA RTX A5500 scores 174,637, while the AMD Radeon RX 6650M XT manages 76,904. That is a delta of 127.1% in favor of the A5500. The A5500 does not just win; it more than doubles the AMD mobile GPU's output.

Context from the rivals list reinforces the scale. The A5500's average score of 165,217 sits within 0.2% of the AMD Radeon PRO W7800 (164,894) and 0.5% below the NVIDIA RTX 4500 Ada Generation (166,094). It is 1.7% ahead of the NVIDIA A100 PCIe 40 GB (162,504) and 2% behind the AMD Radeon Pro W6900X (168,574). The RX 6650M XT's average of 76,904 is 1% below the NVIDIA GeForce RTX 5090 D (77,712), 2.6% behind the AMD Radeon RX 6850M XT (78,940), and 3.1% to 3.4% behind the Tesla P100 variants (79,396 and 79,605). The nearest rivals to the A5500 are all high-end desktop or workstation parts; the nearest rivals to the RX 6650M XT are a mix of desktop and mobile GPUs, but all at a much lower absolute performance tier.

There are no benchmark categories where the RX 6650M XT wins. The wins tally is 1 for the A5500 and 0 for the AMD card. The only recorded test is OpenCL, so the analysis cannot extend to Vulkan or other workloads, but the available data points to a clear hierarchy. The A5500's 97th percentile ranking versus the RX 6650M XT's 91st percentile further separates them, even though both are above average. The percentile gap is modest relative to the raw score gap, reflecting the wide distribution of GPUs in the database.

Specification Differences

The two GPUs differ across nearly every specification category. The table below highlights only fields where they diverge.

• Chip: GA102 (NVIDIA) vs. Navi 23 (AMD)
• Architecture: Ampere vs. RDNA 2.0
• Generation: Workstation Ampere (Ax000) vs. Navi Mobile (RX 6000M)
• Process node: 8 nm Samsung vs. 7 nm TSMC
• Transistors: 28,300 million vs. 11,060 million
• Die size: 628 mm² vs. 237 mm²
• Transistor density: 45.1M/mm² vs. 46.7M/mm²
• Base clock: 1080 MHz vs. 2068 MHz
• Boost clock: 1665 MHz vs. 2416 MHz
• Game clock: Not applicable vs. 2162 MHz
• Memory size: 24 GB vs. 8 GB
• Memory bus width: 384 bit vs. 128 bit
• Memory bandwidth: 768.0 GB/s vs. 256.0 GB/s
• Shading units: 10,240 vs. 2,048
• TMUs: 320 vs. 128
• ROPs: 96 vs. 64
• RT cores: 80 vs. 32
• Tensor cores: 320 vs. Not applicable
• Pixel rate: 159.8 GPixel/s vs. 154.6 GPixel/s
• Texture rate: 532.8 GTexel/s vs. 309.2 GTexel/s
• FP32 performance: 34.10 TFLOPS vs. 9.896 TFLOPS
• FP16 performance: 34.10 TFLOPS (1:1) vs. 19.79 TFLOPS (2:1)
• TDP: 230 W vs. 120 W
• Slot width: Dual-slot vs. IGP
• Power connectors: 1x 8-pin vs. None
• Suggested PSU: 550 W vs. Not applicable
• Bus interface: PCIe 4.0 x16 vs. PCIe 4.0 x8
• Display outputs: 4x DisplayPort 1.4a vs. Portable Device Dependent
• Dimensions: 267 mm x 112 mm vs. Not applicable
• Release date: March 21, 2022 vs. January 3, 2022
• Predecessor: Quadro Turing vs. Polaris Mobile
• Successor: Workstation Ada vs. Not applicable

Both GPUs share the same memory type (GDDR6), effective memory speed (16 Gbps), API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4), and production status (end-of-life).

Where Each One Wins

The NVIDIA RTX A5500 wins in every measurable category in the database. Its 127.1% OpenCL advantage over the RX 6650M XT makes it the clear choice for compute-heavy workloads. The 24 GB memory pool and 768.0 GB/s bandwidth position it for large datasets, high-resolution textures, and multi-display workstation tasks. The 320 tensor cores add AI inference and DLSS-class acceleration, while the 80 RT cores handle ray-traced rendering. The A5500 is built for desktop workstations, evidenced by its dual-slot form factor, 4x DisplayPort 1.4a outputs, and 230 W power envelope.

The AMD Radeon RX 6650M XT wins in mobility and efficiency. Its 120 W TDP is roughly half the A5500's, and its IGP designation means it is designed to be integrated into laptops and portable devices. The 7 nm TSMC process and higher clock speeds (2416 MHz boost) allow it to extract competitive performance per watt, even though absolute performance is far lower. The RX 6650M XT also has a slight transistor density advantage (46.7M/mm² vs. 45.1M/mm²), indicating a more compact design. For users needing a capable GPU in a thin-and-light chassis, the RX 6650M XT is the only viable option of the two, since the A5500 cannot physically fit in such systems.

In raw compute, the A5500 is in a different league. Its FP32 output of 34.10 TFLOPS is 3.4 times the RX 6650M XT's 9.896 TFLOPS. Texture rate is 1.7 times higher, and memory bandwidth is exactly 3 times higher. Even pixel rate, the closest metric, favors the A5500 at 159.8 GPixel/s versus 154.6 GPixel/s. The RX 6650M XT's only relative strength is its FP16 ratio: 19.79 TFLOPS at 2:1 versus the A5500's 34.10 TFLOPS at 1:1. While the AMD card gets a 2x FP16 boost, the absolute number still trails the A5500.

The use-case split is therefore clear. For workstation rendering, scientific computing, AI inference, or any task where memory capacity and compute throughput matter, the RTX A5500 is the definitive winner. For mobile gaming or portable productivity where power draw and physical footprint are constraints, the RX 6650M XT serves a purpose the A5500 cannot fulfill. The benchmark data does not show a single test where the AMD GPU takes the lead, but its existence in the mobile segment fills a niche that a 267 mm dual-slot card simply cannot occupy.