GPU Comparison

# Head-to-Head Benchmarks

The only direct benchmark comparison available in the data is the Geekbench OpenCL test, where the AMD Radeon Pro Duo scores 35,860 against the NVIDIA T550 Mobile's 35,521. That is a razor-thin 1% delta in favor of the AMD card, statistically negligible in real-world terms, but a win nonetheless. The AMD Radeon Pro Duo's single benchmark result places it at the 80th percentile among all GPUs, while the NVIDIA T550 Mobile sits at the 77th percentile. Interestingly, the two cards are far closer in raw OpenCL throughput than their architectural differences would suggest.

Looking at the rival landscape, the AMD Radeon Pro Duo's 35,860 score puts it essentially neck-and-neck with the NVIDIA Quadro GV100 (35,520, a 1% difference) and the NVIDIA GeForce RTX 5070 Ti Mobile (35,435, a 1.2% gap). It trails the NVIDIA T1000 (36,289) by 1.2% and the AMD Radeon RX 5300M (36,529) by 1.8%. The T550 Mobile, meanwhile, anchors its 35,521 OpenCL score amid a cluster of similar performers: the NVIDIA GeForce RTX 3050 Mobile matches it exactly (33,170 average across all tests, 0% delta on the OpenCL result), the AMD Radeon Pro 570 is 0.1% behind, and the NVIDIA P104-100 is 0.5% ahead. The NVIDIA T600 Mobile trails by 1%.

But there is a second benchmark for the T550 Mobile that the AMD card lacks: a Geekbench Vulkan score of 30,801. This matters because it shows the NVIDIA card's API versatility, it can deliver solid performance across both OpenCL and Vulkan workloads, whereas the Radeon Pro Duo's data only speaks to OpenCL. The T550 Mobile's average benchmark score across both tests is 33,161, which is notably lower than its OpenCL peak, suggesting Vulkan performance drags down its overall standing. The AMD card's average equals its single OpenCL score at 35,860.

The data reveals a paradox: the AMD Radeon Pro Duo, with 4,096 shading units and 8.192 TFLOPS of FP32 compute, barely edges out the T550 Mobile, which has just 1,024 shading units and 3.410 TFLOPS. That is a 2.4x raw compute advantage for AMD, yet only a 1% benchmark victory. Something is limiting the Radeon's real-world throughput, possibly driver maturity, memory architecture inefficiencies, or the benchmark's scaling characteristics. The T550 Mobile's 2:1 FP16 ratio (6.820 TFLOPS) versus the Radeon's 1:1 ratio (8.192 TFLOPS) hints at different compute priorities: NVIDIA's Turing architecture favors mixed-precision workloads, while AMD's GCN 3.0 treats FP16 and FP32 equally.

# FAQ

Q: Which GPU has the higher raw compute throughput?

A: The AMD Radeon Pro Duo delivers 8.192 TFLOPS of FP32 compute, which is 2.4x the T550 Mobile's 3.410 TFLOPS. However, the T550 Mobile reaches 6.820 TFLOPS in FP16 (2:1 ratio), while the Radeon Pro Duo maintains the same 8.192 TFLOPS in FP16 (1:1 ratio).

Q: How do their benchmark scores compare?

A: In Geekbench OpenCL, the Radeon Pro Duo scores 35,860 versus the T550 Mobile's 35,521, a 1% difference favoring AMD. The T550 Mobile also has a Geekbench Vulkan score of 30,801, which the Radeon Pro Duo lacks. The AMD card sits at the 80th percentile overall, while the T550 Mobile is at the 77th.

Q: Which GPU has more memory bandwidth?

A: The AMD Radeon Pro Duo offers 512.0 GB/s of bandwidth via a 4096-bit HBM interface, compared to the T550 Mobile's 96.00 GB/s over a 64-bit GDDR6 bus. That is a 5.3x bandwidth advantage for AMD, despite both cards having 4 GB of memory.

Q: What are the power requirements for each?

A: The Radeon Pro Duo has a 350 W TDP, requires three 8-pin power connectors, and needs a 750 W suggested PSU. The T550 Mobile has a 23 W TDP, uses no power connectors, and has no suggested PSU listed, it is an integrated GPU for portable devices.

Q: Which GPU supports newer graphics APIs?

A: The T550 Mobile supports DirectX 12 (12_1) and Vulkan 1.4, while the Radeon Pro Duo supports DirectX 12 (12_0) and Vulkan 1.2.170. Both support OpenGL 4.6. The NVIDIA card's higher DirectX feature level and newer Vulkan version suggest better forward compatibility.

Q: How do these GPUs compare to their nearest rivals?

A: The Radeon Pro Duo's closest rival is the NVIDIA Quadro GV100 (1% difference) and the RTX 5070 Ti Mobile (1.2% gap). The T550 Mobile's closest rival is the GeForce RTX 3050 Mobile (0% delta), followed by the Radeon Pro 570 (0.1% behind) and the P104-100 (0.5% ahead).

# Architecture Differences

The AMD Radeon Pro Duo is built on the Capsaicin chip using GCN 3.0 architecture, fabricated on a 28 nm process at TSMC. The die measures 596 mm² and packs 8,900 million transistors, yielding a transistor density of 14.9 million per square millimeter. This is a desktop-oriented dual-slot card with three 8-pin power connectors and a 350 W TDP. Its memory subsystem is unusual: 4 GB of HBM on a 4096-bit bus, delivering 512.0 GB/s of bandwidth. The GPU has 4,096 shading units, 256 texture mapping units, and 64 render output units, producing a pixel rate of 64.00 GPixel/s and a texture rate of 256.0 GTexel/s.

The NVIDIA T550 Mobile uses the TU117 chip with Turing architecture, fabricated on a 12 nm process, also at TSMC. The die is dramatically smaller at 200 mm² and contains 4,700 million transistors, but achieves a higher density of 23.5 million per square millimeter. This is an integrated GPU (IGP) with a 23 W TDP and no power connectors. Memory consists of 4 GB of GDDR6 on a 64-bit bus, yielding 96.00 GB/s of bandwidth. The GPU has 1,024 shading units, 64 TMUs, and 32 ROPs, with a pixel rate of 53.28 GPixel/s and a texture rate of 106.6 GTexel/s.

The architectural philosophy diverges sharply. AMD's GCN 3.0 prioritizes raw compute width, 4x the shading units and 4x the TMUs of NVIDIA's chip, with a massive memory bus to feed it. The HBM memory operates at 500 MHz (1000 Mbps effective), but the 4096-bit bus compensates with enormous bandwidth. NVIDIA's Turing design is more efficient per transistor: the 12 nm node allows a 57% higher transistor density, and the 2:1 FP16 ratio (6.820 TFLOPS) suggests a design that can double throughput on half-precision workloads, unlike AMD's 1:1 FP16 (8.192 TFLOPS).

Neither GPU has ray tracing cores or tensor cores, so both rely on traditional rasterization and compute pipelines. The T550 Mobile's DirectX 12_1 support and Vulkan 1.4 compatibility exceed the Radeon Pro Duo's DirectX 12_0 and Vulkan 1.2.170, indicating NVIDIA's newer API implementation despite the older release context. The Radeon Pro Duo's display outputs (1x HDMI 1.4a, 3x DisplayPort 1.2) are fixed, while the T550 Mobile's display outputs are labeled "portable device dependent," reflecting its mobile integration.

# The Verdict

The benchmark data tells a story of two GPUs that achieve similar OpenCL scores through vastly different means. The AMD Radeon Pro Duo wins the sole head-to-head benchmark by 1%, but the T550 Mobile counters with a Vulkan score that AMD cannot match. For compute-heavy workloads that leverage OpenCL, the Radeon Pro Duo holds a marginal edge, but its 350 W TDP versus 23 W means it consumes 15x more power for that 1% advantage. The T550 Mobile's average benchmark score of 33,161 across two tests versus the Radeon's 35,860 in one test suggests the NVIDIA card is more consistent across APIs.

For users who need maximum raw compute and have the power budget, the Radeon Pro Duo's 8.192 TFLOPS of FP32 and 512.0 GB/s bandwidth are compelling. The data shows it outperforms the T550 Mobile in OpenCL and sits at a higher overall percentile (80th versus 77th). However, the T550 Mobile's 6.820 TFLOPS of FP16 compute and newer API support (Vulkan 1.4, DirectX 12_1) make it a more future-proof choice for mixed-precision workloads and modern graphics applications.

The Radeon Pro Duo is end-of-life with a launch MSRP of 1,499 USD, while the T550 Mobile's release date is not provided but it is also marked end-of-life. The AMD card's successor is the Radeon Pro Polaris, and the NVIDIA card's successor is Ampere-MW. Neither GPU supports ray tracing or tensor cores, so those features are absent from both.

For a workstation needing sustained compute throughput, the Radeon Pro Duo's 64 ROPs and 256 TMUs provide higher fill rates (64.00 GPixel/s and 256.0 GTexel/s versus 53.28 and 106.6, respectively). But the T550 Mobile's integrated nature and lack of power connectors make it deployable in thin-and-light laptops where the Radeon Pro Duo's 277 mm length and dual-slot width would be impossible.

# Specification Differences

| Specification | AMD Radeon Pro Duo | NVIDIA T550 Mobile |

|---|---|---|

| Chip | Capsaicin | TU117 |

| Architecture | GCN 3.0 | Turing |

| Process Node | 28 nm | 12 nm |

| Transistors | 8,900 million | 4,700 million |

| Die Size | 596 mm² | 200 mm² |

| Transistor Density | 14.9M / mm² | 23.5M / mm² |

| Memory Type | HBM | GDDR6 |

| Memory Bus Width | 4096 bit | 64 bit |

| Memory Bandwidth | 512.0 GB/s | 96.00 GB/s |

| Base Clock | Not listed | 1065 MHz |

| Boost Clock | Not listed | 1665 MHz |

| Memory Clock | 500 MHz (1000 Mbps) | 1500 MHz (12 Gbps) |

| Shading Units | 4096 | 1024 |

| TMUs | 256 | 64 |

| ROPs | 64 | 32 |

| Pixel Rate | 64.00 GPixel/s | 53.28 GPixel/s |

| Texture Rate | 256.0 GTexel/s | 106.6 GTexel/s |

| FP32 | 8.192 TFLOPS | 3.410 TFLOPS |

| FP16 | 8.192 TFLOPS (1:1) | 6.820 TFLOPS (2:1) |

| TDP | 350 W | 23 W |

| Slot Width | Dual-slot | IGP |

| Power Connectors | 3x 8-pin | None |

| Suggested PSU | 750 W | Not listed |

| DirectX | 12 (12_0) | 12 (12_1) |

| Vulkan | 1.2.170 | 1.4 |

| Display Outputs | 1x HDMI 1.4a, 3x DisplayPort 1.2 | Portable Device Dependent |

| Length | 277 mm (10.9 inches) | Not listed |

| Height | 111 mm (4.4 inches) | Not listed |

| Launch MSRP | 1,499 USD | Not listed |

# Where Each One Wins

AMD Radeon Pro Duo wins on raw compute metrics. Its 8.192 TFLOPS of FP32 is 2.4x the T550 Mobile's figure, and its 512.0 GB/s memory bandwidth is 5.3x higher. The 4096-bit HBM bus dwarfs the 64-bit GDDR6 interface, which shows in the pixel rate (64.00 versus 53.28 GPixel/s) and texture rate (256.0 versus 106.6 GTexel/s). The Radeon Pro Duo's 80th percentile ranking versus the T550's 77th reflects this advantage. It wins the only head-to-head OpenCL benchmark by 1%, and its nearest rivals include the Quadro GV100 and RTX 5070 Ti Mobile, both far more expensive workstation parts. For compute-heavy tasks like rendering, scientific simulation, or large-data processing, the Radeon Pro Duo's shading unit count and memory throughput are decisive.

NVIDIA T550 Mobile wins on efficiency and API modernity. Its 23 W TDP is a fraction of the Radeon's 350 W, and it requires no power connectors, the Radeon needs three 8-pin connectors and a 750 W PSU. The T550's 12 nm process achieves higher transistor density (23.5M/mm² versus 14.9M/mm²), indicating a more compact, efficient design. Its Vulkan 1.4 support and DirectX 12_1 feature level exceed the Radeon's Vulkan 1.2.170 and DirectX 12_0. The T550 also posts a Geekbench Vulkan score of 30,801, giving it a second benchmark result that the Radeon cannot contest. Its FP16 throughput of 6.820 TFLOPS (2:1 ratio) is 83% of the Radeon's FP16, despite having only a quarter of the shading units, a sign of architectural efficiency. For mobile workstations, laptop deployments, or any scenario where power draw and physical footprint matter, the T550 Mobile is the clear choice.

The data suggests a use-case split: choose the Radeon Pro Duo for stationary, power-rich environments demanding maximum compute throughput; choose the T550 Mobile for portable systems where API compatibility and thermal efficiency take priority. The Radeon's 1% OpenCL win is real but narrow, while the T550's Vulkan score and 15x lower power draw make it the more versatile option for a broader range of real-world scenarios.