AMD Radeon RX 6550M vs AMD Radeon RX 6650M XT Comparison

FAQ

Q: How much faster is the AMD Radeon RX 6650M XT than the AMD Radeon RX 6550M in the database's primary compute test?

A: In the Geekbench OpenCL benchmark, the RX 6650M XT scores 76,904 compared to the RX 6550M's 42,536, which is an 80.8% advantage for the larger chip.

Q: Which GPU has the higher memory bandwidth, and by how much?

A: The RX 6650M XT offers 256.0 GB/s over a 128-bit bus, while the RX 6550M provides 144.0 GB/s over a 64-bit bus. The former delivers roughly 78% more bandwidth.

Q: Are these chips from the same architecture generation?

A: Yes, both are RDNA 2.0 parts from the Navi Mobile (RX 6000M) generation, but they use different physical chips: Navi 23 for the RX 6650M XT and Navi 24 for the RX 6550M.

Q: What is the difference in transistor count between the two?

A: The RX 6650M XT packs 11,060 million transistors on a 237 mm² die, while the RX 6550M has 5,400 million transistors on a 107 mm² die. That is more than double the transistor budget for the larger part.

Q: Do both support the same modern graphics APIs?

A: Yes, both report DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so feature-level API support matches.

Q: Which chip has the higher boost clock?

A: The RX 6550M has a higher boost clock at 2840 MHz versus 2416 MHz for the RX 6650M XT, even though the smaller chip has far fewer total resources.

Where Each One Wins

The benchmark data records only one head-to-head compute test, and the RX 6650M XT wins it decisively. Its Geekbench OpenCL score of 76,904 crushes the RX 6550M's 42,536, an 80.8% gap. That makes the RX 6650M XT the clear choice for any workload that stresses raw compute throughput, OpenCL acceleration, or general GPU number crunching.

The RX 6550M does not win any recorded benchmark in this comparison. However, its profile suggests a different role. It draws 80 W versus 120 W, it uses a newer 6 nm process versus 7 nm, and it boosts to 2840 MHz, which is 424 MHz higher than the RX 6650M XT's boost. The data does not show a performance win for the RX 6550M, but its lower power envelope and higher clock speeds point toward thinner, lighter laptops where heat and battery life matter more than peak compute.

For gaming, the database does not include a direct frame-rate test. Based on the compute results, the RX 6650M XT should carry demanding titles at higher settings, while the RX 6550M targets more modest 1080p-class experiences where its 4 GB frame buffer and 144.0 GB/s bandwidth are sufficient. The RX 6650M XT also has double the shading units (2048 vs 1024), double the texture mapping units (128 vs 64), and double the render output units (64 vs 32), so every stage of the graphics pipeline is wider.

Architecture Differences

Both GPUs share the RDNA 2.0 architecture and the Navi Mobile (RX 6000M) generation, but they are built on different process nodes. The RX 6650M XT uses TSMC's 7 nm process, while the RX 6550M uses TSMC's 6 nm process. The smaller node gives the RX 6550M a higher transistor density: 50.5 million transistors per square millimeter versus 46.7 million for the RX 6650M XT, despite the RX 6550M having fewer total transistors.

The chip designs diverge significantly. The RX 6650M XT is built around Navi 23, a 237 mm² die with 11,060 million transistors. The RX 6550M uses Navi 24, a 107 mm² die with 5,400 million transistors. That is a 122% difference in die area and a 105% difference in transistor count. The larger chip has 2048 shading units, 128 TMUs, 64 ROPs, and 32 ray tracing cores. The smaller chip has 1024 shading units, 64 TMUs, 32 ROPs, and 16 ray tracing cores. Every compute block is exactly halved.

Memory architecture also differs. The RX 6650M XT pairs its 8 GB GDDR6 frame buffer with a 128-bit bus and 256.0 GB/s of bandwidth. The RX 6550M has 4 GB GDDR6 on a 64-bit bus with 144.0 GB/s. The memory clock rates reflect this: 2000 MHz (16 Gbps effective) for the RX 6650M XT versus 2250 MHz (18 Gbps effective) for the RX 6550M. Interestingly, the smaller chip runs its memory faster, but the narrower bus limits total throughput.

The PCIe interface differs as well. The RX 6650M XT uses PCIe 4.0 x8, while the RX 6550M uses PCIe 4.0 x4. In bandwidth-constrained scenarios such as external GPU enclosures or systems with limited lanes, the RX 6650M XT has an advantage.

Specification Differences

The two mobile GPUs differ across nearly every measured specification. The process node moves from 7 nm to 6 nm. Transistor count drops from 11,060 million to 5,400 million, and die size shrinks from 237 mm² to 107 mm². Transistor density improves slightly from 46.7 million per square millimeter to 50.5 million per square millimeter.

Clock speeds tell a nuanced story. The RX 6650M XT has a base clock of 2068 MHz, a game clock of 2162 MHz, and a boost clock of 2416 MHz. The RX 6550M has a lower base clock at 2000 MHz, a higher game clock at 2560 MHz, and a much higher boost clock at 2840 MHz. The RX 6550M also runs its memory at 2250 MHz (18 Gbps effective) versus 2000 MHz (16 Gbps effective) for the RX 6650M XT.

Memory capacity halves from 8 GB to 4 GB, bus width halves from 128 bit to 64 bit, and bandwidth drops from 256.0 GB/s to 144.0 GB/s. Shading units, TMUs, ROPs, and ray tracing cores all halve: 2048 to 1024, 128 to 64, 64 to 32, and 32 to 16 respectively. Pixel rate falls from 154.6 GPixel/s to 90.88 GPixel/s, and texture rate falls from 309.2 GTexel/s to 181.8 GTexel/s. FP32 compute drops from 9.896 TFLOPS to 5.816 TFLOPS, with FP16 falling from 19.79 TFLOPS to 11.63 TFLOPS, both maintaining a 2:1 ratio.

Power draw is a major differentiator. The RX 6650M XT is rated at 120 W TDP, while the RX 6550M is rated at 80 W, a 40 W reduction. Both are IGP slot-width parts with no power connectors and portable-device-dependent display outputs. The RX 6650M XT is end-of-life and released in January 2022, while the RX 6550M is active and released in January 2023. Neither has a recorded launch MSRP in the database.

Head-to-Head Benchmarks

The database contains a single head-to-head benchmark result between these two GPUs: Geekbench OpenCL. In that test, the RX 6650M XT scores 76,904 against the RX 6550M's 42,536. The delta is 80.8% in favor of the RX 6650M XT. That is a substantial margin, far larger than the difference between the RX 6650M XT and its nearest rivals in the broader database.

Context from the nearest rival lists helps interpret this gap. The RX 6650M XT sits at the 91st percentile among all GPUs in the database. Its nearest competitors include the NVIDIA GeForce RTX 5090 D (77,712 average score, 1% behind), the AMD Radeon RX 6850M XT (78,940, 2.6% behind), and NVIDIA Tesla P100 variants (79,396 and 79,605, 3.1% and 3.4% behind). The RX 6650M XT is essentially trading blows with some of the fastest GPUs in the database, while the RX 6550M sits at the 85th percentile with an average score of 46,702.

The RX 6550M's nearest rivals are much closer in performance. The Intel Arc A530M scores 46,614 (0.2% ahead), the AMD Radeon RX 5600M scores 46,601 (0.2% ahead), the NVIDIA RTX A2000 scores 46,043 (1.4% behind), and the NVIDIA RTX 5880 Ada Generation scores 45,972 (1.6% behind). The RX 6550M is essentially tied with these mid-range parts, whereas the RX 6650M XT competes at a much higher tier.

The RX 6550M also has a Geekbench Vulkan score of 50,867, but the RX 6650M XT has no recorded Vulkan result in the database, so no direct comparison is possible for that API. The OpenCL result alone shows the RX 6650M XT delivering nearly double the compute performance of the RX 6550M, which aligns with its doubled resource counts across every functional unit.

The Verdict

The RX 6650M XT is the performance pick without qualification. Its 80.8% lead in the only head-to-head benchmark is massive, and its architecture supports that result: double the shading units, double the TMUs, double the ROPs, double the ray tracing cores, double the memory, and double the memory bandwidth. The 91st percentile ranking places it alongside flagship-class GPUs, and its nearest rivals are within 3.4% of its score. Anyone needing maximum compute throughput from a mobile Radeon part should choose the RX 6650M XT.

The RX 6550M is the efficiency-oriented alternative. It consumes 40 W less power, runs on a more advanced 6 nm process, and achieves higher clock speeds, including a 2840 MHz boost. Its 85th percentile ranking and tight cluster of rivals (all within 1.6%) show it is competitive with mid-range mobile GPUs. For a thin laptop where battery life and thermals are priorities, the RX 6550M makes more sense, even though it gives up a large amount of raw performance.

The production status difference reinforces this split. The RX 6650M XT is end-of-life, while the RX 6550M is active. New designs are more likely to use the RX 6550M, but the data shows that choice comes with a significant compute penalty. The RX 6650M XT remains the stronger part wherever performance is the primary goal, and its end-of-life status suggests it may be found in existing high-end laptops rather than new ones.

In short: pick the RX 6650M XT for compute-heavy workloads, high-resolution gaming, or any task that benefits from 8 GB of VRAM and 256.0 GB/s of bandwidth. Pick the RX 6550M for a lower-power, actively produced mobile GPU that still delivers competent mid-range performance. The benchmark data is unambiguous about which one is faster, but the design goals are clearly different.