AMD Radeon RX 6750 XT vs NVIDIA GeForce MX550 Comparison

# Head-to-Head Benchmarks

The two competing benchmark results available for this comparison reveal a sharply split picture. In Geekbench OpenCL, the NVIDIA GeForce MX550 scores 20,372 against the AMD Radeon RX 6750 XT's 16,360, giving the MX550 a decisive 24.5% advantage. This is a notable outcome, as it shows the smaller, lower-power Turing part outperforming the larger RDNA 2.0 GPU in a compute-oriented workload, likely reflecting driver optimization and workload characteristics that favor the MX550's architecture.

However, the Geekbench Vulkan result tells a completely different story. Here, the AMD Radeon RX 6750 XT posts 98,089, a massive score that dwarfs the MX550's 32,469. The delta is -66.9% from the MX550's perspective, meaning the RX 6750 XT is roughly three times faster in this graphics API test. This is an enormous margin that underscores the fundamental performance gulf between these two products in modern graphics workloads. The Vulkan benchmark is generally more representative of real-world gaming and graphics performance, which gives the RX 6750 XT a compelling case for any application that leverages this API.

Looking at the aggregate data, the MX550 achieves an average benchmark score of 26,421 across its two tests, while the RX 6750 XT averages 26,011 across its eleven tests. These averages are remarkably close, differing by only about 1.6%. Yet this similarity is misleading, as the MX550's average is based on just two results, both of which are compute-oriented, whereas the RX 6750 XT's average includes a broader range of tests including DirectX 9, 10, 11, 12, G2D, G3D, and compute workloads. The RX 6750 XT's PassMark G3D score of 20,700 and GPU compute score of 9,550 indicate strong rasterization and compute performance, while its DirectX 12 score of 80 and DirectX 11 score of 180 are notably lower, suggesting these specific legacy tests are not where this GPU excels.

# Architecture Differences

The architectural gap between these two GPUs is substantial. The NVIDIA GeForce MX550 is built on the Turing architecture using the TU117SB chip, manufactured on a 12 nm process at TSMC. It packs 4,700 million transistors into a 200 mm² die, yielding a transistor density of 23.5 million per square millimeter. In contrast, the AMD Radeon RX 6750 XT uses the Navi 22 chip with RDNA 2.0 architecture, fabricated on a 7 nm process, also at TSMC. This chip contains 17,200 million transistors across a 335 mm² die, achieving a transistor density of 51.3 million per square millimeter — more than double the MX550's density.

The compute resources diverge sharply. The MX550 has 1,024 shading units, 32 texture mapping units, and 16 render output units. The RX 6750 XT more than doubles this with 2,560 shading units, 160 TMUs, and 64 ROPs. Critically, the RX 6750 XT also features 40 ray tracing cores, a capability entirely absent from the MX550, which has no RT cores or tensor cores listed. This means the RX 6750 XT can handle hardware-accelerated ray tracing while the MX550 cannot, a significant feature gap for modern games and applications.

Memory configurations could not be more different. The MX550 comes with just 2 GB of GDDR6 memory on a 64-bit bus, delivering 96.00 GB/s of bandwidth. The RX 6750 XT offers 12 GB of GDDR6 on a 192-bit bus, providing 432.0 GB/s of bandwidth — 4.5 times the bandwidth and six times the capacity. Clocks also favor AMD: the MX550 runs at a base of 1065 MHz and boost of 1320 MHz with memory at 1500 MHz (12 Gbps effective), while the RX 6750 XT operates at a base of 2150 MHz, boost of 2600 MHz, and game clock of 2495 MHz, with memory at 2250 MHz (18 Gbps effective).

Theoretical throughput figures reflect these differences. The MX550 delivers 2.703 TFLOPS FP32 and 2.703 TFLOPS FP16 (1:1 ratio), while the RX 6750 XT produces 13.31 TFLOPS FP32 and 26.62 TFLOPS FP16 (2:1 ratio). Pixel rate is 21.12 GPixel/s for NVIDIA versus 166.4 GPixel/s for AMD, and texture rate is 42.24 GTexel/s versus 416.0 GTexel/s. Power consumption scales accordingly: the MX550 is rated at 25 W with no power connectors, while the RX 6750 XT draws 250 W and requires a 1x 6-pin plus 1x 8-pin power connector setup, with a suggested PSU of 600 W.

API support also differs. The MX550 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The RX 6750 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, adding the Ultimate feature set that enables advanced DX12 features. The bus interface is PCIe 4.0 x8 for the MX550 versus PCIe 4.0 x16 for the RX 6750 XT, and the physical form factors reflect their intended use cases: the MX550 is an IGP (integrated graphics processor) with portable device dependent display outputs, while the RX 6750 XT is a dual-slot card measuring 267 mm in length, 110 mm in height, and 40 mm in width, with 1x HDMI 2.1 and 3x DisplayPort 1.4a outputs.

# FAQ

Q: Which GPU is faster in Geekbench OpenCL?

A: The NVIDIA GeForce MX550 scores 20,372 versus the AMD Radeon RX 6750 XT's 16,360, giving NVIDIA a 24.5% advantage in this specific compute benchmark.

Q: How large is the Vulkan performance gap?

A: The AMD Radeon RX 6750 XT scores 98,089 in Geekbench Vulkan compared to the MX550's 32,469, a delta of -66.9% from the MX550's perspective. The RX 6750 XT is approximately three times faster.

Q: What are the memory capacity and bandwidth differences?

A: The MX550 has 2 GB of GDDR6 memory on a 64-bit bus with 96.00 GB/s bandwidth. The RX 6750 XT has 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth — six times the capacity and 4.5 times the bandwidth.

Q: Does the MX550 support ray tracing?

A: No. The MX550 has no RT cores listed, while the RX 6750 XT features 40 ray tracing cores, enabling hardware-accelerated ray tracing.

Q: How do the average benchmark scores compare?

A: The MX550 has an average benchmark score of 26,421 across its two tests, while the RX 6750 XT averages 26,011 across eleven tests. The MX550 sits at the 72nd percentile of all GPUs, and the RX 6750 XT at the 71st percentile.

Q: What are the power requirements for each card?

A: The MX550 is rated at 25 W TDP with no power connectors required. The RX 6750 XT has a 250 W TDP and needs both a 6-pin and an 8-pin power connector, with a 600 W suggested PSU.

# The Verdict

The data presents a clear but nuanced picture. For users prioritizing compute workloads in OpenCL, the NVIDIA GeForce MX550 is the surprising winner, delivering 24.5% higher performance than the RX 6750 XT. This makes it a compelling option for specific compute tasks where its architecture and drivers excel, particularly given its dramatically lower power envelope of 25 W versus 250 W.

However, for virtually any graphics-intensive application, particularly those using Vulkan, the AMD Radeon RX 6750 XT is in a different league. Its Vulkan score of 98,089 is over three times the MX550's 32,469. The RX 6750 XT also offers 40 ray tracing cores, 12 GB of memory versus 2 GB, and 432.0 GB/s of bandwidth versus 96.00 GB/s. These are not incremental advantages; they represent fundamental capability differences.

The percentile rankings are nearly identical — 72nd for the MX550 and 71st for the RX 6750 XT — and the average scores are within 1.6% of each other, but these figures obscure the divergent workload characteristics. The MX550's average is derived from only two compute-oriented tests, while the RX 6750 XT's includes a broader spectrum of workloads. In its nearest rival comparisons, the MX550 trades blows with the AMD Radeon 860M (0.1% ahead), NVIDIA GeForce RTX 5060 (0.3% ahead), AMD Radeon RX 5700 XT 50th Anniversary (0.5% behind), and NVIDIA RTX A4000 (1% behind). The RX 6750 XT's nearest rivals include the AMD Radeon R9 M395X (0.5% ahead), AMD FirePro W7100 (0.6% ahead), AMD FirePro D700 (0.7% ahead), and NVIDIA GeForce RTX 3080 Ti Mobile (1.1% ahead).

The choice between these GPUs depends entirely on the intended workload. The MX550 is a low-power integrated solution suited for portable devices where efficiency and compute performance in OpenCL are priorities. The RX 6750 XT is a full-size, dual-slot discrete card designed for high-end graphics, ray tracing, and memory-intensive applications. Its 12 GB frame buffer and 432.0 GB/s bandwidth make it suitable for modern games and content creation at high resolutions, while the MX550's 2 GB capacity and 96.00 GB/s bandwidth will limit it to lighter workloads.

# Specification Differences

| Specification | NVIDIA GeForce MX550 | AMD Radeon RX 6750 XT |

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

| Architecture | Turing | RDNA 2.0 |

| Chip | TU117SB | Navi 22 |

| Process Node | 12 nm | 7 nm |

| Transistors | 4,700 million | 17,200 million |

| Die Size | 200 mm² | 335 mm² |

| Transistor Density | 23.5M / mm² | 51.3M / mm² |

| Base Clock | 1065 MHz | 2150 MHz |

| Boost Clock | 1320 MHz | 2600 MHz |

| Game Clock | — | 2495 MHz |

| Memory Clock | 1500 MHz (12 Gbps effective) | 2250 MHz (18 Gbps effective) |

| Memory Size | 2 GB | 12 GB |

| Memory Type | GDDR6 | GDDR6 |

| Memory Bus Width | 64 bit | 192 bit |

| Memory Bandwidth | 96.00 GB/s | 432.0 GB/s |

| Shading Units | 1024 | 2560 |

| TMUs | 32 | 160 |

| ROPs | 16 | 64 |

| RT Cores | — | 40 |

| Pixel Rate | 21.12 GPixel/s | 166.4 GPixel/s |

| Texture Rate | 42.24 GTexel/s | 416.0 GTexel/s |

| FP32 Performance | 2.703 TFLOPS | 13.31 TFLOPS |

| FP16 Performance | 2.703 TFLOPS (1:1) | 26.62 TFLOPS (2:1) |

| TDP | 25 W | 250 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | 1x 6-pin + 1x 8-pin |

| Suggested PSU | — | 600 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |

| Display Outputs | Portable Device Dependent | 1x HDMI 2.1, 3x DisplayPort 1.4a |

| DirectX Support | 12 (12_1) | 12 Ultimate (12_2) |

| Dimensions (LxHxW) | — | 267 x 110 x 40 mm |

| Release Date | 2021-12-16 | 2022-03-02 |

| Launch MSRP | — | 549 USD |