AMD Radeon RX 6650M XT vs NVIDIA RTX A1000 Mobile Comparison

Head-to-Head Benchmarks

The database records a single direct comparison between the AMD Radeon RX 6650M XT and the NVIDIA RTX A1000 Mobile, using the Geekbench OpenCL workload. The results are decisive. The AMD Radeon RX 6650M XT scores 76,904, while the NVIDIA RTX A1000 Mobile scores 48,703. That is a 57.9% advantage for the AMD part in this compute-oriented test. The gap is substantial and places the two GPUs in different performance tiers entirely.

When positioned against the wider field, the AMD Radeon RX 6650M XT sits at the 91st percentile of all GPUs in the database. Its nearest rivals are the NVIDIA GeForce RTX 5090 D, which averages 77,712 and trails by only 1%, and the AMD Radeon RX 6850M XT, which averages 78,940 and leads by 2.6%. The NVIDIA Tesla P100 PCIe 12 GB and 16 GB variants also sit close, scoring 79,396 and 79,605 respectively, placing the RX 6650M XT just 3.1% and 3.4% behind those data-center oriented cards. In short, the RX 6650M XT is competing with far larger and more power-hungry silicon, not with the RTX A1000 Mobile.

The NVIDIA RTX A1000 Mobile, by contrast, records an 85th percentile standing. Its average benchmark score across two recorded tests is 47,743, which reflects both its OpenCL result of 48,703 and its Vulkan result of 46,782. Its nearest rivals in the database include the AMD Radeon RX 6800 XT, which averages 48,477 and leads by 1.5%, and the AMD Radeon RX 6550M, which averages 46,702 and trails by 2.2%. The Intel Arc A530M and AMD Radeon RX 5600M also sit nearby, with scores of 46,614 and 46,601, respectively, each trailing by roughly 2.4% to 2.5%. The RTX A1000 Mobile is therefore clustered with mid-range mobile parts, not with the top-tier desktop cards that surround the RX 6650M XT.

The head-to-head delta of 57.9% is the single most important number in this comparison. It means that in the OpenCL workload, the AMD GPU delivers roughly one and a half times the raw compute throughput of the NVIDIA GPU. That is not a marginal win; it is a generational and architectural chasm made visible in a single metric.

Where Each One Wins

The benchmark data shows one clear winner across the board. The AMD Radeon RX 6650M XT wins the only direct head-to-head test, and it wins by a wide margin. There are no recorded tests where the NVIDIA RTX A1000 Mobile comes out ahead. The wins tally stands at 1 for AMD and 0 for NVIDIA.

For compute-heavy tasks that resemble the Geekbench OpenCL workload, the RX 6650M XT is the obvious choice. Its FP32 throughput is rated at 9.896 TFLOPS, and its FP16 performance doubles to 19.79 TFLOPS with a 2:1 ratio. The texture rate is 309.2 GTexel/s, and the pixel rate is 154.6 GPixel/s. These are the figures that drive raw shader performance, and they explain why the OpenCL score is so high.

The NVIDIA RTX A1000 Mobile does have its own strengths, but they are not visible in the compute benchmark. Its FP32 rating is 4.669 TFLOPS, and its FP16 rating is identical at 4.669 TFLOPS with a 1:1 ratio, meaning it does not gain any throughput advantage from half-precision workloads. Its texture rate is 72.96 GTexel/s, and its pixel rate is 36.48 GPixel/s. These numbers are roughly half of the AMD part's figures, which aligns with the 57.9% benchmark delta.

Where the NVIDIA part does hold a unique advantage is in its feature set. It includes 64 tensor cores, which the AMD part lacks entirely. The RTX A1000 Mobile also has 16 RT cores, whereas the RX 6650M XT has 32. For workloads that leverage tensor core acceleration, such as certain AI inference or deep learning operations, the NVIDIA GPU has hardware that the AMD GPU simply does not possess. However, the recorded benchmarks do not include any tensor-core-specific tests, so this advantage is structural rather than measured.

Architecture Differences

The two GPUs come from different architectural lineages and are built on different manufacturing processes. The AMD Radeon RX 6650M XT uses the Navi 23 chip with an RDNA 2.0 architecture, fabricated on a 7 nm process at TSMC. The NVIDIA RTX A1000 Mobile uses the GA107 chip with an Ampere architecture, fabricated on an 8 nm process at Samsung. The process node difference is small but measurable: 7 nm versus 8 nm.

Transistor counts also differ significantly. The Navi 23 chip packs 11,060 million transistors on a 237 mm² die, yielding a transistor density of 46.7 million per square millimeter. The GA107 chip has 8,700 million transistors on a 200 mm² die, for a density of 43.5 million per square millimeter. The AMD chip is both larger in die area and denser in transistor packing, which contributes to its higher compute throughput.

Clock speeds tell a similar story. The RX 6650M XT has a base clock of 2068 MHz, a boost clock of 2416 MHz, and a game clock of 2162 MHz. The RTX A1000 Mobile has a base clock of 630 MHz and a boost clock of 1140 MHz. The AMD GPU runs at more than double the base clock speed and over double the boost clock speed. This is a massive difference in operating frequency, and it directly explains the performance gap in the OpenCL benchmark.

Memory configurations also favor the AMD part. The RX 6650M XT has 8 GB of GDDR6 memory on a 128-bit bus, with a memory clock of 2000 MHz and an effective data rate of 16 Gbps. This yields a bandwidth of 256.0 GB/s. The RTX A1000 Mobile has 4 GB of GDDR6 memory on the same 128-bit bus, but the memory clock is 1375 MHz with an effective rate of 11 Gbps, resulting in 176.0 GB/s of bandwidth. The AMD part has twice the memory capacity and 45% more bandwidth.

The compute resources are differently allocated as well. Both GPUs have 2048 shading units, but the RX 6650M XT has 128 texture mapping units and 64 render output units, while the RTX A1000 Mobile has 64 TMUs and 32 ROPs. The AMD part again doubles the NVIDIA part in both categories. The RTX A1000 Mobile does include 64 tensor cores, which the RX 6650M XT does not have, and the AMD part has 32 RT cores versus the NVIDIA part's 16.

Power consumption is also a key differentiator. The RX 6650M XT is rated at 120 W TDP, while the RTX A1000 Mobile is rated at 60 W TDP. The AMD part uses twice the power to deliver its performance advantage. Both are integrated into portable devices with no power connectors and no dedicated slot width, so the thermal and power constraints are dictated by the host laptop design.

Both GPUs support PCIe 4.0 x8, DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. They are also both marked as end-of-life products, with the AMD part releasing on January 3, 2022, and the NVIDIA part on March 29, 2022. The AMD predecessor is Polaris Mobile, while the NVIDIA predecessor is Quadro Turing-M, and the NVIDIA successor is Ada-MW.

The Verdict

The data directs a clear verdict. For any workload that resembles the Geekbench OpenCL test, the AMD Radeon RX 6650M XT is the superior choice. Its 76,904 score versus the RTX A1000 Mobile's 48,703 represents a 57.9% advantage, and this is consistent with the underlying hardware specifications. The AMD part has higher clocks, more TMUs and ROPs, more memory, higher bandwidth, and more than double the FP32 throughput.

The NVIDIA RTX A1000 Mobile is the better pick only in scenarios where its tensor cores are essential. The 64 tensor cores are unique to the NVIDIA part, and any workload that can offload significant work to tensor cores may close the gap or even reverse it. However, the recorded benchmark data does not include any such test, so this advantage remains theoretical within the scope of the database.

For users who need maximum compute performance in a mobile form factor, the RX 6650M XT is the clear winner. It sits at the 91st percentile of all GPUs, competing with desktop cards like the RTX 5090 D and the RX 6850M XT. The RTX A1000 Mobile, at the 85th percentile, is a capable mid-range part, but its closest rivals are the RX 6550M and the Arc A530M, not top-tier silicon.

The power draw is the tradeoff. The RX 6650M XT requires 120 W, while the RTX A1000 Mobile requires only 60 W. For thin-and-light laptops with strict thermal budgets, the NVIDIA part may be the only viable option. But for performance-oriented mobile workstations where compute throughput matters more than battery life, the AMD part dominates.

The verdict is straightforward: choose the AMD Radeon RX 6650M XT for raw compute performance, choose the NVIDIA RTX A1000 Mobile for tensor-core-accelerated workloads or for half the power draw. Every measured benchmark favors AMD.

FAQ

Q: Which GPU has a higher Geekbench OpenCL score?

A: The AMD Radeon RX 6650M XT scores 76,904, while the NVIDIA RTX A1000 Mobile scores 48,703. The AMD part leads by 57.9%.

Q: What is the memory capacity difference between the two GPUs?

A: The AMD Radeon RX 6650M XT has 8 GB of GDDR6 memory, while the NVIDIA RTX A1000 Mobile has 4 GB of GDDR6 memory. Both use a 128-bit bus.

Q: Does the NVIDIA RTX A1000 Mobile have any hardware features that the AMD part lacks?

A: Yes, the RTX A1000 Mobile includes 64 tensor cores, which the AMD Radeon RX 6650M XT does not have. The NVIDIA part also has 16 RT cores, while the AMD part has 32.

Q: What are the TDP ratings for each GPU?

A: The AMD Radeon RX 6650M XT is rated at 120 W, while the NVIDIA RTX A1000 Mobile is rated at 60 W.

Q: How does the AMD Radeon RX 6650M XT compare to its nearest rivals?

A: The RX 6650M XT sits 1% behind the NVIDIA GeForce RTX 5090 D, 2.6% behind the AMD Radeon RX 6850M XT, and 3.1% to 3.4% behind the NVIDIA Tesla P100 PCIe variants.

Q: What is the average benchmark score for the NVIDIA RTX A1000 Mobile?

A: The average score is 47,743, based on its OpenCL score of 48,703 and its Vulkan score of 46,782.