AMD Radeon RX 6550M vs NVIDIA TITAN X Pascal Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive, though not unexpected, victory for the NVIDIA TITAN X Pascal across both benchmark workloads. In the Geekbench OpenCL test, the TITAN X Pascal scores 66,696 points, while the AMD Radeon RX 6550M trails significantly with 42,536 points. That is a delta of 56.8% in favor of the NVIDIA card, making it the clear leader in raw compute throughput for general-purpose GPU workloads.

The Vulkan results follow a similar pattern. The TITAN X Pascal posts 77,499 points, compared to the RX 6550M's 50,867 points. The margin here is 52.4%, again favoring the NVIDIA part. Interestingly, the TITAN X Pascal's Vulkan score is notably higher than its OpenCL score, suggesting the Pascal architecture's driver stack and hardware scheduling handle Vulkan's explicit API model particularly well. The RX 6550M also improves in Vulkan relative to OpenCL, but the gap between the two cards remains substantial.

When contextualizing these scores against the broader database, the TITAN X Pascal sits at the 91st percentile among all GPUs, while the RX 6550M lands at the 85th percentile. The average benchmark score for the TITAN X Pascal is 72,098, which places it within 0.4% of the AMD Radeon Pro Vega 64 (72,379) and 0.5% ahead of the AMD Radeon RX 6650M (71,768). The RX 6550M's average of 46,702 is nearly identical to the Intel Arc A530M (46,614) and AMD Radeon RX 5600M (46,601), with deltas of just 0.2% in each case. This means the RX 6550M is essentially tied with its closest rivals, whereas the TITAN X Pascal is competing in a much higher performance tier.

The head-to-head wins are clean: 2 wins for the TITAN X Pascal, 0 for the RX 6550M. There is no benchmark in the database where the AMD mobile part manages to outpace the desktop flagship from 2016. The margins are large enough that they cannot be explained by driver variance or thermal differences; the TITAN X Pascal simply has more execution resources and memory bandwidth to draw upon.

Where Each One Wins

The benchmark data presents a one-sided picture, but that does not mean the RX 6550M lacks a purpose. Rather, the wins for each product are defined by different criteria: performance versus efficiency and form factor.

For raw performance, the NVIDIA TITAN X Pascal wins outright. Its 10.97 TFLOPS of FP32 compute, 480.4 GB/s of memory bandwidth, and 96 ROPs deliver results that the RX 6550M cannot approach. The TITAN X Pascal's pixel rate of 147.0 GPixel/s and texture rate of 342.9 GTexel/s are far ahead of the RX 6550M's 90.88 GPixel/s and 181.8 GTexel/s. Any workload that is compute-bound or bandwidth-bound, such as large-scale rendering, scientific simulation, or high-resolution texture streaming, will favor the NVIDIA card.

The RX 6550M's wins are in the mobile and efficiency domain. Its TDP is 80 W versus the TITAN X Pascal's 250 W. It requires no power connectors, while the TITAN X Pascal needs a 1x 6-pin and 1x 8-pin setup, plus a suggested 600 W PSU. The RX 6550M is an IGP (integrated graphics processor) form factor, whereas the TITAN X Pascal is a dual-slot card measuring 267 mm in length. For thin-and-light laptops or compact systems where power draw and physical space are the primary constraints, the RX 6550M is the only viable option. It also supports PCIe 4.0 x4, while the TITAN X Pascal uses PCIe 3.0 x16, which matters for systems with newer CPUs and faster storage interfaces.

The RX 6550M also brings hardware ray tracing support with 16 RT cores, a feature the Pascal-based TITAN X Pascal lacks entirely. In games or applications that use DXR or Vulkan ray tracing, the RX 6550M will at least be able to execute those workloads, albeit at a lower overall frame rate than the TITAN X Pascal achieves in non-ray-traced scenes.

Architecture Differences

The two GPUs come from different architectural generations and design philosophies. The NVIDIA TITAN X Pascal is built on the GP102 chip using the Pascal architecture, manufactured on a 16 nm TSMC process. It packs 11,800 million transistors into a die size of 471 mm², yielding a transistor density of 25.1M per mm². The RX 6550M, by contrast, uses the Navi 24 chip with RDNA 2.0 architecture, fabricated on a 6 nm TSMC process. It contains 5,400 million transistors on a much smaller 107 mm² die, achieving a far higher transistor density of 50.5M per mm².

The TITAN X Pascal has 3,584 shading units, 224 TMUs, and 96 ROPs. Its memory subsystem consists of 12 GB of GDDR5X on a 384-bit bus, providing 480.4 GB/s of bandwidth. The RX 6550M is far more modest on paper: 1,024 shading units, 64 TMUs, and 32 ROPs, with only 4 GB of GDDR6 on a 64-bit bus, resulting in 144.0 GB/s of bandwidth. The memory capacity difference is stark, 12 GB versus 4 GB, which will matter in high-resolution textures or large dataset workloads.

Clock speeds tell a different story. The RX 6550M has a base clock of 2000 MHz and a boost clock of 2840 MHz, with a game clock of 2560 MHz. The TITAN X Pascal runs at 1417 MHz base and 1531 MHz boost. The RX 6550M's higher clocks partially compensate for its fewer cores, but not enough to close the FP32 gap: 5.816 TFLOPS versus 10.97 TFLOPS.

The FP16 capabilities diverge sharply. The TITAN X Pascal delivers only 171.5 GFLOPS of FP16, a 1:64 ratio relative to FP32, which indicates it is not optimized for half-precision workloads. The RX 6550M delivers 11.63 TFLOPS of FP16, a 2:1 ratio, meaning it can process FP16 at twice the rate of FP32. This makes the AMD part more suitable for machine learning inference or media processing that uses half-precision arithmetic.

API support also differs. The TITAN X Pascal supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The RX 6550M supports DirectX 12 Ultimate (12_2), which includes features like mesh shaders and variable rate shading, plus OpenGL 4.6 and Vulkan 1.4. The RX 6550M's DirectX 12 Ultimate certification is a generational advantage for newer titles that leverage those features.

The production statuses reflect their lifecycles. The TITAN X Pascal is end-of-life, having been released on 2016-08-01, with a successor in the GeForce 20 series and a predecessor in the GeForce 900 series. The RX 6550M is active, released on 2023-01-03, with its predecessor being Polaris Mobile and no successor listed.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA TITAN X Pascal has an average benchmark score of 72,098, compared to the AMD Radeon RX 6550M's 46,702. The TITAN X Pascal ranks at the 91st percentile among all GPUs, while the RX 6550M ranks at the 85th percentile.

Q: How large is the performance gap in the head-to-head tests?

A: The TITAN X Pascal wins the OpenCL test by 56.8% and the Vulkan test by 52.4%. The recorded scores are 66,696 versus 42,536 in OpenCL, and 77,499 versus 50,867 in Vulkan.

Q: Does the RX 6550M have any architectural advantage?

A: Yes, the RX 6550M supports DirectX 12 Ultimate and has 16 RT cores for hardware ray tracing, which the TITAN X Pascal lacks. It also has a much higher FP16 throughput at 11.63 TFLOPS, while the TITAN X Pascal manages only 171.5 GFLOPS.

Q: What are the power requirements for each card?

A: The TITAN X Pascal has a TDP of 250 W and requires a 1x 6-pin plus 1x 8-pin power connector, with a suggested 600 W PSU. The RX 6550M has a TDP of 80 W and requires no power connectors.

Q: How does the RX 6550M compare to its closest rivals?

A: The RX 6550M's average score of 46,702 is within 0.2% of both the Intel Arc A530M (46,614) and the AMD Radeon RX 5600M (46,601). It is 1.4% ahead of the NVIDIA RTX A2000 (46,043) and 1.6% ahead of the NVIDIA RTX 5880 Ada Generation (45,972).

Q: Which card has more memory bandwidth?

A: The TITAN X Pascal offers 480.4 GB/s through a 384-bit bus with 12 GB of GDDR5X. The RX 6550M provides 144.0 GB/s through a 64-bit bus with 4 GB of GDDR6.

The Verdict

The database is unambiguous: the NVIDIA TITAN X Pascal outperforms the AMD Radeon RX 6550M by a substantial margin in every recorded benchmark. The 56.8% lead in OpenCL and 52.4% lead in Vulkan are decisive. Anyone prioritizing raw compute, high-resolution rendering, or memory-heavy workloads should select the TITAN X Pascal, provided their system can accommodate its 250 W TDP, dual-slot footprint, and need for a 600 W PSU.

The RX 6550M is not a competitor in the same tier. Its 80 W power draw, IGP form factor, and no external power connectors make it suitable for portable systems where the TITAN X Pascal would be physically and electrically impossible to install. It also brings modern features like DirectX 12 Ultimate and ray tracing support, which the older Pascal architecture cannot offer.

The choice comes down to context. For a desktop workstation or gaming rig with adequate power and cooling, the TITAN X Pascal is the clear winner based on the data. For a mobile platform or a compact build where efficiency and space are paramount, the RX 6550M is the only one of the two that fits, and its performance is still respectable at the 85th percentile across all GPUs.

The TITAN X Pascal's nearest rivals, the AMD Radeon Pro Vega 64 and RX 6650M, are separated by less than 1%, indicating that the Pascal card remains competitive even against newer hardware. The RX 6550M's nearest rivals are similarly clustered, but at a much lower absolute performance level. The verdict from the measurements is clear: two different products for two different use cases, with the desktop card dominating on raw speed and the mobile part winning on portability.