NVIDIA GeForce RTX 3090 Ti vs NVIDIA RTX A4500 Mobile Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce RTX 3090 Ti records an average benchmark score of 131,938, while the NVIDIA RTX A4500 Mobile sits at 91,134. That is a gap of roughly 45% in favor of the desktop card.

Q: How do the two compare in the Geekbench OpenCL test?

A: The RTX 3090 Ti scores 174,441 in Geekbench OpenCL, versus 105,307 for the RTX A4500 Mobile. The desktop card leads by 65.6% in this compute workload.

Q: Is the RTX A4500 Mobile competitive in Vulkan workloads?

A: No. The RTX 3090 Ti scores 215,633 in Geekbench Vulkan, while the RTX A4500 Mobile manages 76,960. That is a 180.2% advantage for the desktop GPU, indicating a very large performance disparity in graphics API tests.

Q: What architecture do both GPUs use?

A: Both are built on NVIDIA's Ampere architecture and use an 8 nm process node from Samsung. The RTX 3090 Ti uses the GA102 chip, while the RTX A4500 Mobile uses the GA104 chip.

Q: What is the memory configuration difference?

A: The RTX 3090 Ti has 24 GB of GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth. The RTX A4500 Mobile has 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth.

Q: Which card has more shading units and ray tracing cores?

A: The RTX 3090 Ti has 10,752 shading units and 84 RT cores. The RTX A4500 Mobile has 5,888 shading units and 46 RT cores.

Architecture Differences

The two GPUs share the same Ampere architecture and Samsung 8 nm process node, but they diverge significantly in chip design and feature scaling. The RTX 3090 Ti uses the GA102 die, which contains 28,300 million transistors on a 628 mm² die size, resulting in a transistor density of 45.1M per mm². The RTX A4500 Mobile uses the GA104 die, with 17,400 million transistors on a 392 mm² die, giving a density of 44.4M per mm². The desktop card packs roughly 63% more transistors and a 60% larger die, which explains its much higher compute throughput.

The RTX 3090 Ti operates with a base clock of 1560 MHz and a boost clock of 1860 MHz, while the RTX A4500 Mobile runs at 930 MHz base and 1500 MHz boost. That clock advantage, combined with the larger chip, drives the desktop card's performance lead. The memory subsystem also differs: the RTX 3090 Ti uses 24 GB of GDDR6X with a 384-bit bus and 1.01 TB/s bandwidth, whereas the RTX A4500 Mobile uses 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The desktop card's memory bandwidth is roughly double that of the mobile part.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity is complete. However, the RTX 3090 Ti has more of every compute resource: 10,752 shading units versus 5,888, 336 TMUs versus 184, 112 ROPs versus 96, 84 RT cores versus 46, and 336 tensor cores versus 184. The FP32 compute rating is 40.00 TFLOPS for the desktop card versus 17.66 TFLOPS for the mobile card, a 2.27x difference. The FP16 rating is identical at 1:1 ratio, meaning both cards offer the same FP16-to-FP32 throughput ratio, but the absolute FP16 numbers follow the FP32 gap.

Power delivery and physical design reflect the different target markets. The RTX 3090 Ti has a 450 W TDP, uses a triple-slot cooler, requires a 1x 16-pin power connector, and suggests an 850 W power supply. The RTX A4500 Mobile has a 140 W TDP, uses no external power connectors (power comes from the laptop), and has no slot width or suggested PSU listed. The desktop card measures 336 mm in length, 140 mm in height, and 61 mm in width, while the mobile card has no listed dimensions since it is soldered into a portable chassis.

Head-to-Head Benchmarks

The recorded data includes two direct comparison tests, and the RTX 3090 Ti wins both. In Geekbench OpenCL, the desktop card scores 174,441 against the mobile card's 105,307, a 65.6% delta. This test is compute-heavy and favors the RTX 3090 Ti's larger shader array and higher clocks. In Geekbench Vulkan, the gap widens dramatically: the RTX 3090 Ti scores 215,633 versus 76,960, a 180.2% delta. Vulkan is a low-level graphics API, and the RTX 3090 Ti's 112 ROPs, 336 TMUs, and 1.01 TB/s bandwidth give it a massive edge in rasterization-heavy workloads.

Looking at the broader benchmark landscape, the RTX 3090 Ti also holds a 3DMark Steel Nomad DX12 score of 5,741, which is not directly compared here but contributes to its 95th percentile ranking among all GPUs. The RTX A4500 Mobile sits at the 93rd percentile, so both are high-end parts, but the desktop card is in a higher tier. The average benchmark score difference (131,938 versus 91,134) reinforces that the RTX 3090 Ti is roughly 45% faster overall.

The nearest rivals for the RTX 3090 Ti include the NVIDIA L4 (avg score 131,072, delta 0.7%), the RTX 4000 Ada Generation (135,218, delta -2.4%), the A10M (135,230, delta -2.4%), and the AMD Radeon PRO W6800 (135,396, delta -2.6%). This shows the RTX 3090 Ti is competitive with modern workstation cards, trailing the top ones by only 2.4-2.6%. For the RTX A4500 Mobile, its nearest rivals are the desktop RTX A4500 (91,671, delta -0.6%), the AMD Radeon Instinct MI60 (92,466, delta -1.4%), the Quadro GP100 (87,445, delta 4.2%), and the Radeon PRO W7600 (87,108, delta 4.6%). The mobile card essentially matches its desktop sibling, within 0.6%, and beats older flagship workstation GPUs by 4.2-4.6%.

Specification Differences

The two GPUs differ in nearly every measurable specification except architecture, process node, foundry, API support, and production status.

• Chip: GA102 (RTX 3090 Ti) versus GA104 (RTX A4500 Mobile)
• Transistors: 28,300 million versus 17,400 million
• Die size: 628 mm² versus 392 mm²
• Transistor density: 45.1M / mm² versus 44.4M / mm²
• Base clock: 1560 MHz versus 930 MHz
• Boost clock: 1860 MHz versus 1500 MHz
• Memory clock: 1313 MHz (21 Gbps effective) versus 2000 MHz (16 Gbps effective)
• Memory size: 24 GB versus 16 GB
• Memory type: GDDR6X versus GDDR6
• Memory bus: 384 bit versus 256 bit
• Memory bandwidth: 1.01 TB/s versus 512.0 GB/s
• Shading units: 10,752 versus 5,888
• TMUs: 336 versus 184
• ROPs: 112 versus 96
• RT cores: 84 versus 46
• Tensor cores: 336 versus 184
• Pixel rate: 208.3 GPixel/s versus 144.0 GPixel/s
• Texture rate: 625.0 GTexel/s versus 276.0 GTexel/s
• FP32: 40.00 TFLOPS versus 17.66 TFLOPS
• FP16: 40.00 TFLOPS versus 17.66 TFLOPS
• TDP: 450 W versus 140 W
• Slot width: Triple-slot versus not listed
• Power connectors: 1x 16-pin versus none
• Suggested PSU: 850 W versus not listed
• Display outputs: 1x HDMI 2.1, 3x DisplayPort 1.4a versus portable device dependent
• Dimensions: 336 mm x 140 mm x 61 mm versus not listed
• Release date: 2022-01-26 versus 2022-03-21
• Launch MSRP: 1,999 USD versus not listed
• Generation: GeForce 30 versus Ampere-MW (Ax000)
• Predecessor: GeForce 20 versus Quadro Turing-M
• Successor: GeForce 40 versus Ada-MW

Where Each One Wins

The RTX 3090 Ti wins every recorded benchmark and dominates in raw compute and graphics throughput. Its 40.00 TFLOPS FP32 performance, 1.01 TB/s memory bandwidth, and 84 RT cores make it the clear choice for heavy compute workloads, high-resolution rendering, and GPU-accelerated tasks that saturate memory bandwidth. The 3DMark Steel Nomad score of 5,741 and the 180.2% Vulkan lead specifically point to strengths in real-time graphics, where the combination of 112 ROPs and massive texture rate (625.0 GTexel/s) allows it to push high pixel fill rates without bottlenecking.

The RTX A4500 Mobile wins in portability and power efficiency by default. Its 140 W TDP is less than a third of the desktop card's 450 W, and it requires no external power connectors. The mobile card also has a smaller die (392 mm² versus 628 mm²) and fewer transistors, which means less heat generation. For laptop builds where space and cooling are constrained, the A4500 Mobile is the only option between the two. Its nearest rival data shows it is within 0.6% of the desktop RTX A4500, so it does not sacrifice much performance relative to a full-size workstation card. The 93rd percentile ranking still places it in the top tier of all GPUs.

Use-case split: the RTX 3090 Ti is for desktop workstations where performance is the sole priority, such as 3D rendering, scientific compute, or high-end gaming. The RTX A4500 Mobile is for professionals who need Ampere architecture features (RT cores, tensor cores, DX12 Ultimate) in a portable form factor, accepting roughly half the FP32 throughput (17.66 TFLOPS versus 40.00 TFLOPS) in exchange for mobility.

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 3090 Ti is the faster GPU by every measured metric. It leads by 65.6% in Geekbench OpenCL and by 180.2% in Geekbench Vulkan, and its average benchmark score of 131,938 is about 45% higher than the RTX A4500 Mobile's 91,134. The desktop card also holds a higher percentile ranking (95th versus 93rd), reinforcing its position as a top-tier part. If the choice is between these two for a stationary workstation, the RTX 3090 Ti is the correct pick, provided the system can accommodate its 450 W TDP, triple-slot cooler, and 850 W suggested PSU.

However, the RTX A4500 Mobile is not a weak GPU. It matches the desktop RTX A4500 within 0.6% and beats the Quadro GP100 by 4.2% and the Radeon PRO W7600 by 4.6%. Its 140 W TDP makes it feasible for laptops, and it still delivers 17.66 TFLOPS FP32, 46 RT cores, and 16 GB of GDDR6 memory. For professionals who require Ampere features on the go, the A4500 Mobile is a strong option. The decision hinges entirely on form factor: the RTX 3090 Ti is a desktop-only card with no portable equivalent, while the RTX A4500 Mobile is a mobile-only part. Benchmark results indicate the desktop card is roughly twice as fast in compute and over twice as fast in Vulkan graphics, but the mobile card offers the only viable path to Ampere-class performance in a laptop chassis.