NVIDIA GeForce RTX 3090 Ti vs NVIDIA RTX A3000 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between the NVIDIA GeForce RTX 3090 Ti and the NVIDIA RTX A3000 Mobile, with the desktop flagship winning both head-to-head tests. In Geekbench OpenCL, the RTX 3090 Ti scores 174,441 against the A3000 Mobile's 79,091, a delta of 120.6% in favor of the desktop card. That is more than double the mobile workstation GPU's compute output in this API. The gap widens further in Geekbench Vulkan, where the RTX 3090 Ti posts 215,633 versus the A3000 Mobile's 61,189. This translates to a 252.4% advantage, meaning the desktop card delivers roughly three and a half times the Vulkan performance of the mobile part.

The average benchmark score across all recorded tests reinforces this hierarchy. The RTX 3090 Ti holds an average score of 131,938, while the A3000 Mobile averages 70,140. This places the desktop GPU in the 95th percentile among all GPUs in the database, whereas the mobile GPU sits in the 91st percentile. Both are strong positions, but the raw delta in average scores is nearly 88% in favor of the RTX 3090 Ti. In head-to-head wins, the RTX 3090 Ti takes both available tests, while the A3000 Mobile records zero victories.

Context from nearest rivals helps frame these numbers. The RTX 3090 Ti's average score of 131,938 is within 0.7% of the NVIDIA L4's 131,072, effectively a statistical tie. It trails the NVIDIA RTX 4000 Ada Generation (135,218) by 2.4% and the NVIDIA A10M (135,230) by the same margin, while also sitting 2.6% behind the AMD Radeon PRO W6800 (135,396). For a previous-generation flagship, this level of proximity to newer workstation parts indicates that the RTX 3090 Ti remains competitive in absolute compute terms. The A3000 Mobile, with its 70,140 average, is clustered around the NVIDIA Quadro P6000 (69,986, a 0.2% delta), the AMD Radeon Pro WX 8200 (69,870, a 0.4% delta), and the AMD Radeon RX 6600 LE (70,829, a 1% delta). The NVIDIA CMP 90HX sits slightly below at 69,000, a 1.7% difference. This places the mobile GPU in the same performance tier as older desktop workstation cards, which is notable given its 70 W power envelope.

The Verdict

From the recorded data, the choice hinges on workload and form factor. The NVIDIA GeForce RTX 3090 Ti is the clear pick for anyone needing maximum compute throughput in a desktop chassis. It wins both head-to-head benchmarks by substantial margins: 120.6% in OpenCL and 252.4% in Vulkan. Its average score of 131,938 places it in the 95th percentile of all GPUs, and it trades blows with modern workstation accelerators like the RTX 4000 Ada Generation and A10M, coming within 2.4% of both. For rendering, GPU compute, or Vulkan-based workloads where absolute performance matters, the data unambiguously favors the RTX 3090 Ti.

The NVIDIA RTX A3000 Mobile is the appropriate choice when the platform is a portable workstation and power draw is the binding constraint. Its 70 W TDP is dramatically lower than the 450 W TDP of the RTX 3090 Ti, and it requires no external power connectors. While its performance is far lower, its 91st percentile ranking among all GPUs means it still outperforms the vast majority of graphics hardware in the database. It sits within 1% of the Quadro P6000 and Radeon Pro WX 8200, both of which are desktop cards with much higher power demands. Users who need a capable GPU in a laptop, and who cannot accommodate a triple-slot, 336 mm desktop card with a 850 W suggested power supply, should choose the A3000 Mobile. Users who need raw performance and have the physical and electrical headroom should choose the RTX 3090 Ti.

Architecture Differences

Both GPUs are built on NVIDIA's Ampere architecture and use an 8 nm process node from Samsung, but they employ different chips. The RTX 3090 Ti uses the GA102 die, while the A3000 Mobile uses the GA104 die. The GA102 is substantially larger, with a die size of 628 mm² and 28,300 million transistors, yielding a transistor density of 45.1 million per mm². The GA104 is smaller at 392 mm² with 17,400 million transistors, a density of 44.4 million per mm². The desktop chip thus packs roughly 63% more transistors into a die that is about 60% larger, with a slightly higher density.

The compute resources scale accordingly. The RTX 3090 Ti carries 10,752 shading units, 336 texture mapping units, and 112 render output units. The A3000 Mobile has 4,096 shading units, 128 TMUs, and 64 ROPs. Ray tracing hardware follows the same pattern: 84 RT cores on the desktop part versus 32 on the mobile part. Tensor cores number 336 on the RTX 3090 Ti and 128 on the A3000 Mobile. These figures explain the massive performance delta: the desktop GPU has roughly 2.6 times the shading units, 2.6 times the TMUs, 1.75 times the ROPs, 2.6 times the RT cores, and 2.6 times the tensor cores.

Both GPUs share the same API support, including DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The architecture generation differs in naming: the RTX 3090 Ti belongs to the GeForce 30 generation, while the A3000 Mobile is part of the Ampere-MW (Ax000) generation. Both are marked end-of-life in the database. The RTX 3090 Ti's predecessor is GeForce 20 and its successor is GeForce 40. The A3000 Mobile's predecessor is Quadro Turing-M and its successor is Ada-MW.

Specification Differences

The memory subsystems are fundamentally different. The RTX 3090 Ti offers 24 GB of GDDR6X on a 384-bit bus, delivering 1.01 TB/s of bandwidth. The A3000 Mobile provides 6 GB of GDDR6 on a 192-bit bus, with 264.0 GB/s of bandwidth. That is a 4x difference in capacity and nearly a 4x difference in bandwidth. Memory clock rates also differ: the RTX 3090 Ti runs at 1313 MHz with 21 Gbps effective speed, while the A3000 Mobile runs at 1375 MHz with 11 Gbps effective.

Clock speeds show a significant gap. The RTX 3090 Ti has a base clock of 1560 MHz and a boost clock of 1860 MHz. The A3000 Mobile's base clock is just 600 MHz, with a boost of 1230 MHz. This lower clocking is typical for a mobile part constrained by thermals and power. The pixel rate on the RTX 3090 Ti is 208.3 GPixel/s versus 78.72 GPixel/s on the A3000 Mobile. Texture rate is 625.0 GTexel/s versus 157.4 GTexel/s. FP32 and FP16 compute are both rated at 40.00 TFLOPS on the desktop card, while the mobile card delivers 10.08 TFLOPS in both.

Power and physical specifications diverge sharply. The RTX 3090 Ti has a TDP of 450 W, uses a single 16-pin power connector, and requires a suggested 850 W power supply. The A3000 Mobile has a 70 W TDP and uses no power connectors, as it draws power from the host laptop. The desktop card is triple-slot in width, 336 mm long, 140 mm high, and 61 mm wide. The A3000 Mobile has no recorded dimensions or slot width, as it is a BGA mobile part integrated into a laptop. The RTX 3090 Ti offers display outputs of 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the A3000 Mobile's outputs are listed as "Portable Device Dependent." Both use a PCIe 4.0 x16 bus interface. The RTX 3090 Ti was released on 2022-01-26, while the A3000 Mobile came earlier on 2021-04-11. The RTX 3090 Ti has a launch MSRP of 1,999 USD; the A3000 Mobile has no recorded launch MSRP.

FAQ

Q: Which GPU is faster in Geekbench OpenCL?

A: The NVIDIA GeForce RTX 3090 Ti scores 174,441 against the A3000 Mobile's 79,091, a 120.6% advantage.

Q: How large is the Vulkan performance gap?

A: The RTX 3090 Ti scores 215,633 in Geekbench Vulkan, while the A3000 Mobile scores 61,189, giving the desktop card a 252.4% lead.

Q: What is the average benchmark score for each GPU?

A: The RTX 3090 Ti has an average score of 131,938, while the A3000 Mobile averages 70,140. The desktop card sits in the 95th percentile of all GPUs, and the mobile card in the 91st.

Q: How much memory does each GPU have?

A: The RTX 3090 Ti has 24 GB of GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth. The A3000 Mobile has 6 GB of GDDR6 on a 192-bit bus with 264.0 GB/s bandwidth.

Q: What are the power requirements for each?

A: The RTX 3090 Ti has a 450 W TDP, a single 16-pin power connector, and a suggested 850 W power supply. The A3000 Mobile has a 70 W TDP and uses no power connectors.

Q: Which GPUs are closest in performance to each in the database?

A: The RTX 3090 Ti's nearest rivals are the NVIDIA L4 (0.7% ahead), the RTX 4000 Ada Generation (2.4% ahead), and the A10M (2.4% ahead). The A3000 Mobile's nearest rivals are the Quadro P6000 (0.2% ahead), the Radeon Pro WX 8200 (0.4% ahead), and the Radeon RX 6600 LE (1% behind).