NVIDIA GeForce RTX 4090 Mobile vs NVIDIA T550 Mobile Comparison

NVIDIA GeForce RTX 4090 Mobile and NVIDIA T550 Mobile occupy opposite ends of the mobile graphics spectrum, separated by architecture generations, performance classes, and design intent. The recorded data shows a consistent and massive performance gap, with the RTX 4090 Mobile winning both shared benchmark tests by margins exceeding 400%. The T550 Mobile, however, operates at a fraction of the power draw and retains a solid standing among its own peers, making it a relevant option for specific workloads.

Where Each One Wins

The RTX 4090 Mobile wins every benchmark where both products have recorded scores. In the two available head-to-head tests, Geekbench OpenCL and Geekbench Vulkan, the RTX 4090 Mobile dominates. Its OpenCL score of 180,831 is 409.1% higher than the T550 Mobile’s 35,521, and its Vulkan score of 170,774 is 454.4% higher than the T550 Mobile’s 30,801. The data indicates no scenario in these shared tests where the T550 Mobile comes out ahead.

The T550 Mobile’s wins are not measured in raw performance but in efficiency and relative standing. Its average benchmark score of 33,161 places it in the 77th percentile of all GPUs, which is close to its nearest rival, the NVIDIA GeForce RTX 3050 Mobile, which scores 33,170 with a delta of 0%. The T550 Mobile also edges out the NVIDIA T600 Mobile by 1% and the AMD Radeon Pro 570 by 0.1%. So while it cannot compete with the RTX 4090 Mobile, it holds its own within its low-power class. The RTX 4090 Mobile, by comparison, sits in the 84th percentile of all GPUs with an average score of 43,667.

The use-case split is clear: the RTX 4090 Mobile is for high-intensity compute and graphics workloads where maximum throughput matters, while the T550 Mobile is for lightweight, power-constrained tasks where the 23 W TDP is an asset. The RTX 4090 Mobile’s 120 W TDP is five times higher, but the performance multiplier is roughly four to five times in the shared tests, indicating a direct trade-off between power and output.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 4090 Mobile has an average benchmark score of 43,667, compared to the NVIDIA T550 Mobile’s 33,161.

Q: How large is the performance gap in the shared Geekbench tests?

A: In Geekbench OpenCL, the RTX 4090 Mobile scores 180,831 versus 35,521, a 409.1% difference. In Geekbench Vulkan, it scores 170,774 versus 30,801, a 454.4% difference.

Q: What are the power consumption figures for each GPU?

A: The RTX 4090 Mobile has a TDP of 120 W, while the T550 Mobile has a TDP of 23 W.

Q: Which GPU has more memory and bandwidth?

A: The RTX 4090 Mobile has 16 GB of GDDR6 memory on a 256-bit bus with 576.0 GB/s bandwidth. The T550 Mobile has 4 GB of GDDR6 memory on a 64-bit bus with 96.00 GB/s bandwidth.

Q: Do both GPUs support ray tracing and Tensor cores?

A: No. The RTX 4090 Mobile includes 76 RT cores and 304 Tensor cores. The T550 Mobile has no recorded RT cores or Tensor cores.

Q: What is the production status of each GPU?

A: The RTX 4090 Mobile is listed as Active, while the T550 Mobile is listed as End-of-life.

Head-to-Head Benchmarks

The head-to-head data contains only two shared tests, but both are decisive. In Geekbench OpenCL, the RTX 4090 Mobile records 180,831 points against the T550 Mobile’s 35,521 points. The delta is 409.1%, meaning the RTX 4090 Mobile delivers roughly five times the OpenCL throughput. This test is a strong indicator of general compute performance across a wide range of workloads, including rendering and scientific simulations.

In Geekbench Vulkan, the gap widens further. The RTX 4090 Mobile scores 170,774, while the T550 Mobile scores 30,801. The delta is 454.4%, the largest margin in the shared dataset. Vulkan is a low-level graphics API, and the result suggests the RTX 4090 Mobile’s architecture scales more efficiently under modern graphics workloads. The T550 Mobile’s Vulkan score is lower than its OpenCL score, while the RTX 4090 Mobile’s Vulkan score is slightly lower than its OpenCL score as well, but the relative difference between the two products remains stark.

The broader benchmark suite for the RTX 4090 Mobile shows additional strengths. In PassMark G3D, it scores 27,212, and in PassMark GPU Compute, it scores 12,347. The T550 Mobile has no recorded PassMark scores, so direct comparison in those tests is not possible. However, the RTX 4090 Mobile’s average score of 43,667 across all tests, versus the T550 Mobile’s 33,161, confirms that the gap observed in Geekbench is representative of overall performance. The RTX 4090 Mobile also has a higher percentile ranking at 84 versus 77.

Specification Differences

The two GPUs differ in nearly every core specification. The RTX 4090 Mobile has 9,728 shading units, 304 texture mapping units, and 112 render output units. The T550 Mobile has 1,024 shading units, 64 TMUs, and 32 ROPs. The RTX 4090 Mobile’s shading unit count is roughly 9.5 times higher, which directly explains its massive FP32 throughput advantage.

Clock speeds tell a different story. The RTX 4090 Mobile has a base clock of 1335 MHz and a boost clock of 1695 MHz. The T550 Mobile has a base clock of 1065 MHz and a boost clock of 1665 MHz. The clock speeds are relatively close, especially at boost, but the RTX 4090 Mobile’s raw compute advantage comes from its far larger execution resource pool, not from higher clocks. The memory clocks differ as well: the RTX 4090 Mobile runs memory at 2250 MHz with 18 Gbps effective speed, while the T550 Mobile runs at 1500 MHz with 12 Gbps effective speed.

Memory configuration is another major separator. The RTX 4090 Mobile has 16 GB of GDDR6 on a 256-bit bus, yielding 576.0 GB/s of bandwidth. The T550 Mobile has 4 GB of GDDR6 on a 64-bit bus, yielding 96.00 GB/s. The RTX 4090 Mobile delivers six times the memory bandwidth, which is critical for large datasets and high-resolution textures. The bus interface also differs: the RTX 4090 Mobile uses PCIe 4.0 x16, while the T550 Mobile uses PCIe 3.0 x16.

Architecture Differences

The RTX 4090 Mobile is built on the AD103 chip using the Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. It contains 45,900 million transistors on a 379 mm² die, giving a transistor density of 121.1 million per mm². The T550 Mobile uses the TU117 chip with the Turing architecture, fabricated on a 12 nm process, also at TSMC. It contains 4,700 million transistors on a 200 mm² die, with a density of 23.5 million per mm². The process node difference is substantial: the RTX 4090 Mobile uses a 5 nm process versus the T550 Mobile’s 12 nm process, which is a key factor in the performance and efficiency gap.

The RTX 4090 Mobile features 76 RT cores and 304 Tensor cores, enabling hardware-accelerated ray tracing and AI workloads. The T550 Mobile has no recorded RT cores or Tensor cores, meaning it lacks dedicated hardware for these tasks. The FP16 performance also differs in ratio: the RTX 4090 Mobile delivers 32.98 TFLOPS FP16 at a 1:1 ratio with FP32, while the T550 Mobile delivers 6.820 TFLOPS FP16 at a 2:1 ratio. This indicates the RTX 4090 Mobile has balanced FP16 and FP32 throughput, whereas the T550 Mobile prioritizes FP32.

API support shows a generation gap. The RTX 4090 Mobile supports DirectX 12 Ultimate (12_2), while the T550 Mobile supports DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. The DirectX 12 Ultimate feature set includes advanced features like mesh shaders and variable rate shading, which the older Turing architecture may not fully support. The RTX 4090 Mobile is classified as GeForce 40-series with a GeForce 40 Mobile generation, while the T550 Mobile is classified under the Quadro Turing-M (Tx000) generation.

The Verdict

The data supports a clear choice for high-performance users: the RTX 4090 Mobile is the only option when maximum compute and graphics throughput are required. Its 409.1% lead in OpenCL and 454.4% lead in Vulkan leave no ambiguity. It also offers 16 GB of memory, 576.0 GB/s bandwidth, and support for ray tracing and Tensor cores, all of which are absent or reduced in the T550 Mobile. Users working with large models, high-resolution textures, or modern graphics APIs should select the RTX 4090 Mobile.

The T550 Mobile, however, is not without merit. Its 23 W TDP makes it suitable for thin-and-light laptops where battery life and thermal headroom are priorities. It holds a 77th percentile ranking and is effectively tied with the RTX 3050 Mobile in average score, so it is competitive within its class. It also has a lower transistor count and a smaller die, which historically correlates with lower cost and simpler cooling requirements. Users with modest graphics needs, such as basic CAD or office productivity, may find the T550 Mobile adequate.

The production status reinforces the recommendation. The RTX 4090 Mobile is Active, while the T550 Mobile is End-of-life, meaning the latter is no longer in active production. For new purchases, the RTX 4090 Mobile is the forward-looking choice. For existing systems with a T550 Mobile, the data shows it remains a capable low-power option, but it will not handle the workloads that the RTX 4090 Mobile manages with ease. The verdict is straightforward: choose the RTX 4090 Mobile for performance, choose the T550 Mobile only if power draw is the overriding constraint.