AMD Radeon RX 6650M XT vs NVIDIA RTX A5500 Mobile Comparison

Head-to-Head Benchmarks

The database records a single direct benchmark comparison between these two mobile GPUs, and the result is decisive. In the Geekbench OpenCL test, the NVIDIA RTX A5500 Mobile scores 124,287 points, while the AMD Radeon RX 6650M XT scores 76,904 points. That gives NVIDIA a 61.6% advantage, a commanding margin that places the two cards in different performance tiers despite both being mobile solutions.

Looking at the broader context of the recorded data, the RTX A5500 Mobile holds an average benchmark score of 113,944 across all tested workloads. That average sits within 0.4% of the NVIDIA Tesla V100 SXM2 16 GB (114,395), a data center accelerator with far higher power allowances. The A5500 also trails the NVIDIA RTX 4000 SFF Ada Generation (117,088) by 2.7% and the NVIDIA GB10 (117,393) by 2.9%, while leading the AMD Radeon PRO W7900 (110,725) by 2.9%. These are tight margins, suggesting the A5500 Mobile performs at a level comparable to professional desktop and data center parts from the same era.

The RX 6650M XT, by contrast, posts an average benchmark score of 76,904, which is the same as its sole OpenCL result. That places it 1% ahead of the NVIDIA GeForce RTX 5090 D (77,712), 2.6% behind the AMD Radeon RX 6850M XT (78,940), 3.1% behind the NVIDIA Tesla P100 PCIe 12 GB (79,396), and 3.4% behind the NVIDIA Tesla P100 PCIe 16 GB (79,605). The RX 6650M XT's nearest rivals are a mixed bag of older datacenter GPUs and a newer desktop flagship, but the deltas are all within a few percentage points, indicating a stable performance plateau around the 77,000 to 79,000 mark.

The head-to-head delta of 61.6% is not a close contest. The A5500 Mobile's OpenCL score is roughly 1.6 times that of the RX 6650M XT. For perspective, the A5500's single benchmark result alone exceeds the RX 6650M XT's average score by over 47,000 points, a gap larger than the entire average score of many mainstream mobile GPUs.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The NVIDIA RTX A5500 Mobile uses the GA103 chip on Samsung's 8 nm process, with an architecture labeled Ampere. It packs 22,000 million transistors into a 496 mm² die, yielding a transistor density of 44.4 million per mm². The AMD Radeon RX 6650M XT uses the Navi 23 chip on TSMC's 7 nm process, with RDNA 2.0 architecture. It contains 11,060 million transistors on a much smaller 237 mm² die, for a slightly higher density of 46.7 million per mm².

The core configurations diverge sharply. The A5500 Mobile fields 7,424 shading units, 232 texture mapping units, 96 raster output units, 58 ray tracing cores, and 232 tensor cores. The RX 6650M XT has 2,048 shading units, 128 TMUs, 64 ROPs, and 32 ray accelerators, with no tensor cores listed. Despite having roughly 3.6 times the shading units, the A5500's raw FP32 throughput is 22.27 TFLOPS, which is 2.25 times the RX 6650M XT's 9.896 TFLOPS. The FP16 picture is more nuanced: the A5500 achieves 22.27 TFLOPS at a 1:1 ratio with FP32, while the RX 6650M XT reaches 19.79 TFLOPS at a 2:1 ratio, meaning AMD's card can nearly match NVIDIA's FP16 output through packed math, but only in workloads that can exploit the 2:1 rate.

Memory configurations also separate these two. The A5500 Mobile comes with 16 GB of GDDR6 on a 256 bit bus, producing 512.0 GB/s of bandwidth. The RX 6650M XT has 8 GB of GDDR6 on a 128 bit bus, yielding 256.0 GB/s, exactly half the bandwidth. Both run the same 2000 MHz memory clock with 16 Gbps effective data rate, but the narrower bus on the AMD part halves peak throughput. Clock speeds tell a different story: the RX 6650M XT runs a base clock of 2068 MHz and a boost of 2416 MHz, with a game clock of 2162 MHz, while the A5500 Mobile is much more conservative at 975 MHz base and 1500 MHz boost. The AMD card's higher clocks partially compensate for fewer cores, but not enough to close the overall compute gap.

Pixel and texture rates reflect these tradeoffs. The RX 6650M XT achieves 154.6 GPixel/s and 309.2 GTexel/s, while the A5500 Mobile delivers 144.0 GPixel/s and 348.0 GTexel/s. AMD wins on pixel throughput by 7.4%, but NVIDIA wins on texture throughput by 12.5%. Power consumption scales with performance: the A5500 Mobile is rated at 165 W TDP, while the RX 6650M XT draws 120 W, a 45 W difference. Both use PCIe 4.0, but the A5500 connects via x16 while the RX 6650M XT uses x8. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Where Each One Wins

The recorded data shows the NVIDIA RTX A5500 Mobile wins in every direct benchmark comparison against the RX 6650M XT. Its OpenCL score of 124,287 versus 76,904 represents a 61.6% lead, which translates to substantial advantages in compute-heavy workloads such as OpenCL acceleration, scientific simulations, and any task that leverages raw FP32 throughput. The A5500's 22.27 TFLOPS FP32 and 16 GB memory with 512 GB/s bandwidth make it suited for large datasets and complex shader workloads that exceed the RX 6650M XT's 8 GB capacity.

The RX 6650M XT does have specific strengths that the data supports. Its pixel rate of 154.6 GPixel/s exceeds the A5500's 144.0 GPixel/s, suggesting an edge in fill-rate-bound scenarios where rasterization output is the bottleneck. Its higher boost clock of 2416 MHz versus 1500 MHz indicates responsiveness in lightly threaded or latency-sensitive tasks. The 120 W TDP also means it draws 27.3% less power than the A5500's 165 W, which is relevant for thinner laptop chassis and longer battery life. In FP16 workloads that can use packed math, the RX 6650M XT's 19.79 TFLOPS at 2:1 ratio is only 11.1% behind NVIDIA's 22.27 TFLOPS, a much smaller gap than the 61.6% OpenCL deficit.

For gaming specifically, the RX 6650M XT's higher clocks and 32 ray accelerators may deliver competitive frame rates in titles that favor AMD's architecture, particularly at lower resolutions where memory bandwidth is less critical. The A5500 Mobile, with 58 RT cores and 232 tensor cores, is better positioned for ray-traced workloads and DLSS-style AI upscaling, though the database does not include dedicated gaming benchmarks. The A5500's 94th percentile versus all GPUs, compared to the RX 6650M XT's 91st percentile, confirms the NVIDIA part sits higher in the overall performance distribution.

FAQ

Q: How much faster is the NVIDIA RTX A5500 Mobile than the AMD Radeon RX 6650M XT?

A: In the Geekbench OpenCL test, the A5500 Mobile scores 124,287 against 76,904 for the RX 6650M XT, a 61.6% advantage for NVIDIA.

Q: Which GPU has more memory bandwidth?

A: The NVIDIA RTX A5500 Mobile has 512.0 GB/s of bandwidth from a 256 bit bus, exactly double the RX 6650M XT's 256.0 GB/s from a 128 bit bus. Both use GDDR6 with 16 Gbps effective speed.

Q: What are the FP32 performance figures?

A: The A5500 Mobile delivers 22.27 TFLOPS FP32, while the RX 6650M XT delivers 9.896 TFLOPS, making NVIDIA roughly 2.25 times faster in single-precision compute.

Q: Is the AMD card more power-efficient?

A: The RX 6650M XT has a 120 W TDP versus 165 W for the A5500 Mobile, a 45 W difference. The AMD card also achieves a higher pixel rate (154.6 GPixel/s vs 144.0 GPixel/s) despite the lower power draw.

Q: How do their nearest rivals compare?

A: The A5500 Mobile's average score of 113,944 is within 2.9% of several competitors, including the RTX 4000 SFF Ada Generation (117,088) and GB10 (117,393). The RX 6650M XT's 76,904 average sits within 3.4% of the Tesla P100 variants and the RTX 5090 D.

Q: Which GPU has more shading units?

A: The A5500 Mobile has 7,424 shading units compared to 2,048 on the RX 6650M XT, a 3.6 to 1 ratio that explains much of the compute performance difference.

The Verdict

The data is unambiguous. The NVIDIA RTX A5500 Mobile outperforms the AMD Radeon RX 6650M XT by 61.6% in the only direct benchmark recorded, and this margin is consistent with the architectural specifications. The A5500's 22.27 TFLOPS FP32, 512 GB/s bandwidth, and 16 GB memory capacity place it in a different class for compute workloads. Its 94th percentile ranking versus all GPUs, compared to the RX 6650M XT's 91st percentile, confirms the hierarchy.

Users who need maximum compute throughput, large memory buffers, or ray tracing and tensor core acceleration should choose the NVIDIA RTX A5500 Mobile. Its nearest rivals are all professional or data center parts, indicating it can stand in for desktop-class accelerators in a mobile form factor. The 16 GB VRAM is particularly relevant for machine learning inference, large 3D scenes, or multi-application workflows.

Users who prioritize lower power consumption, higher clock speeds, or fill-rate-bound rendering may find the AMD Radeon RX 6650M XT adequate, especially in thinner laptops where the 120 W TDP is easier to cool. Its 154.6 GPixel/s pixel rate exceeds NVIDIA's, and its 19.79 TFLOPS FP16 throughput at 2:1 ratio narrows the gap in mixed-precision workloads. However, the 8 GB memory and 256 GB/s bandwidth are limiting factors for modern high-resolution textures and large compute kernels.

The benchmark data shows no scenario where the RX 6650M XT wins a recorded test against the A5500 Mobile. The only question is whether the A5500's advantages justify its higher power draw in a given laptop design. For raw performance, the NVIDIA part is the clear choice. For efficiency-focused mobile designs, the AMD part offers a lower-power alternative with competitive fill rate, but it cannot match NVIDIA's overall compute lead.