NVIDIA GeForce RTX 3080 Ti Mobile vs NVIDIA RTX A5000 Mobile Comparison

The NVIDIA GeForce RTX 3080 Ti Mobile and the NVIDIA RTX A5000 Mobile are both Ampere-architecture laptop GPUs aimed at very different audiences, yet they share a surprising amount of common ground. The data shows a clear performance hierarchy, with the GeForce part winning every single head-to-head benchmark, but the A5000 counters with a higher boost clock and efficiency profile that make it a distinct contender for professional workflows. This analysis breaks down exactly where each GPU excels based on the benchmark results and specification sheets.

Head-to-Head Benchmarks

The head-to-head results are unambiguous: the GeForce RTX 3080 Ti Mobile dominates all nine recorded benchmarks, with wins ranging from a modest 6.3% to a decisive 30%. The most striking margin comes in the Passmark G2D test, where the 3080 Ti scores 818 against the A5000’s 629, a 30% advantage that reflects a substantial lead in 2D graphics throughput. This is not a trivial gap; it suggests the GeForce part handles desktop composition, video playback, and light graphical interfaces with significantly more headroom.

In the compute-heavy and API-specific tests, the 3080 Ti’s lead is consistently around 22-23%. For instance, in Passmark DirectX 11, the 3080 Ti posts 164 versus 133, a 23.3% difference. The same pattern appears in Passmark DirectX 12 (88 vs 72, 22.2%) and Passmark G3D (19288 vs 15779, 22.2%). This consistency across different DirectX versions indicates that the architectural advantage of the 3080 Ti—likely stemming from its larger shader array—translates uniformly across workloads, rather than being optimized for a specific API.

The GeForce part’s lead narrows in OpenCL, where it scores 117866 against the A5000’s 110877, a 6.3% advantage. This is the closest contest in the entire suite, showing that the A5000’s compute capabilities are relatively stronger than its graphics performance. However, in Vulkan, the gap reopens dramatically: 107502 versus 88144, a 22% difference. This split suggests that the 3080 Ti’s driver and hardware are better tuned for lower-level, cross-platform graphics APIs, while the A5000 holds its ground better in general-purpose GPU compute scenarios.

The smallest delta in the entire set is actually the OpenCL result, but the largest is the G2D test. Across the nine benchmarks, the 3080 Ti wins all of them, giving it a perfect 9-0 record. The A5000’s closest relative performance comes in OpenCL, where it trails by only 6.3%, but it never manages to close the gap to under 10% in any other test. For raw benchmark performance, the data is clear: the GeForce RTX 3080 Ti Mobile is the faster GPU in every measured category.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The GeForce RTX 3080 Ti Mobile has an average benchmark score of 25740, while the RTX A5000 Mobile scores 24763. This places the 3080 Ti roughly 4% higher overall, and it also holds a slightly better percentile rank at 71 versus 70 for the A5000.

Q: How do the two GPUs compare in Vulkan performance?

A: The 3080 Ti Mobile leads significantly in Geekbench Vulkan, scoring 107502 against the A5000’s 88144. This is a 22% advantage, indicating that the GeForce part is substantially stronger in Vulkan-based workloads.

Q: Is the RTX A5000 Mobile competitive in any benchmark?

A: The closest result for the A5000 is in Geekbench OpenCL, where it scores 110877 against the 3080 Ti’s 117866, a gap of only 6.3%. While it loses all nine head-to-head tests, this OpenCL result shows it is relatively more competitive in compute tasks than in graphics tasks.

Q: What is the difference in DirectX 9 performance?

A: The 3080 Ti Mobile scores 201 in Passmark DirectX 9, while the A5000 scores 169, giving the GeForce part an 18.9% lead. This indicates better legacy API support and performance.

Q: How do the two GPUs rank among all GPUs?

A: The 3080 Ti Mobile is in the 71st percentile of all GPUs, while the A5000 Mobile sits in the 70th percentile. The 3080 Ti’s nearest rivals include the AMD Radeon Pro W5700 (0.1% higher) and the AMD Radeon RX 6700M (0.4% lower), while the A5000’s closest competitor is the AMD Radeon RX 590 (0.1% higher).

Q: Do both GPUs support the same DirectX version?

A: Yes, both support DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4. Their API feature sets are identical, so software compatibility is not a differentiator.

Architecture Differences

Both GPUs are built on the Ampere architecture and use Samsung’s 8 nm process node, but they are fundamentally different chips. The GeForce RTX 3080 Ti Mobile uses the GA103 chip, which contains 22,000 million transistors on a 496 mm² die. In contrast, the RTX A5000 Mobile uses the smaller GA104 chip, with 17,400 million transistors on a 392 mm² die. Despite the size difference, both chips have an identical transistor density of 44.4M per mm², reflecting the same fabrication process and design rules.

The shader configuration is where the architectures diverge most sharply. The 3080 Ti Mobile packs 7424 shading units, 232 TMUs, and 96 ROPs, while the A5000 Mobile has 6144 shading units, 192 TMUs, and 96 ROPs. This means the 3080 Ti has 1280 more shading units and 40 more TMUs, which directly explains its higher texture rate and overall graphics throughput. The ray tracing and tensor core counts follow the same pattern: the 3080 Ti has 58 RT cores and 232 tensor cores, versus 48 RT cores and 192 tensor cores on the A5000.

Interestingly, the A5000 Mobile compensates for its smaller shader array with higher clock speeds. Its base clock is 900 MHz and boost clock is 1575 MHz, compared to the 3080 Ti’s 810 MHz base and 1260 MHz boost. This 315 MHz boost advantage allows the A5000 to achieve a higher FP32 throughput of 19.35 TFLOPS, versus 18.71 TFLOPS for the 3080 Ti, despite having fewer cores. The A5000 also posts a higher pixel rate (151.2 GPixel/s vs 121.0) and texture rate (302.4 GTexel/s vs 292.3), meaning it can fill frames faster in certain scenarios despite losing in raw core count.

The memory subsystems are similar but not identical. Both use 16 GB of GDDR6 on a 256-bit bus, but the 3080 Ti runs its memory at 2000 MHz (16 Gbps effective) yielding 512.0 GB/s bandwidth, while the A5000 runs at 1750 MHz (14 Gbps effective) for 448.0 GB/s. The 3080 Ti thus has a 14.3% bandwidth advantage, which contributes to its stronger performance in memory-intensive tests.

Specification Differences

The most obvious specification difference is the TDP. The GeForce RTX 3080 Ti Mobile is rated at 115 W, while the RTX A5000 Mobile draws 150 W. This is a 35 W gap, meaning the A5000 consumes more power to achieve its higher clock speeds, while the 3080 Ti is more power-efficient per watt of performance in the benchmark suite.

Clock speeds differ substantially, as noted: the 3080 Ti has an 810 MHz base and 1260 MHz boost, while the A5000 has a 900 MHz base and 1575 MHz boost. This is a 90 MHz base and 315 MHz boost advantage for the A5000. Memory clocks also differ, with the 3080 Ti at 2000 MHz (16 Gbps effective) versus the A5000’s 1750 MHz (14 Gbps effective), leading to the bandwidth difference of 512.0 GB/s versus 448.0 GB/s.

The chip and die specifications are distinct: GA103 with 22,000 million transistors and 496 mm² for the 3080 Ti, versus GA104 with 17,400 million transistors and 392 mm² for the A5000. Shading units, TMUs, RT cores, and tensor cores all favor the 3080 Ti, as detailed above. The release dates differ, with the A5000 launching on 2021-04-11 and the 3080 Ti on 2022-01-24, making the GeForce part roughly nine months newer.

Both GPUs have no power connectors listed (likely relying on motherboard power), use PCIe 4.0 x16, and have portable-device-dependent display outputs. They share the same API support, production status (end-of-life), and foundry (Samsung). The only other notable difference is their predecessors and successors: the 3080 Ti’s predecessor is the GeForce 20 Mobile, while the A5000’s is the Quadro Turing-M, and the A5000 has a successor in Ada-MW, whereas the 3080 Ti has none listed.

Where Each One Wins

The GeForce RTX 3080 Ti Mobile wins in every benchmark category in the head-to-head suite, making it the clear choice for raw performance. Its biggest advantages are in G2D (30% lead), DirectX 11 (23.3%), and DirectX 12/Vulkan (both 22.2%). This makes it the superior option for gaming, general graphics workloads, and any application that leverages modern graphics APIs. Its 512 GB/s memory bandwidth also gives it an edge in texture-heavy scenes and high-resolution rendering.

The RTX A5000 Mobile, despite losing all head-to-head benchmarks, has several technical merits that favor it in specific scenarios. Its higher boost clock (1575 MHz vs 1260 MHz) and higher FP32 throughput (19.35 TFLOPS vs 18.71 TFLOPS) mean it can execute compute shaders faster per clock, even if it has fewer cores. The A5000 also has a higher pixel rate (151.2 GPixel/s vs 121.0), which could benefit fill-rate-limited workloads like certain rasterization tasks. Its 150 W TDP suggests it is designed for sustained professional workloads where power draw is less of a constraint than in thin gaming laptops.

In practice, the 3080 Ti Mobile is the winner for gaming, DirectX-heavy applications, and Vulkan-based titles, where its 22%+ leads translate directly to higher frame rates. The A5000 Mobile, being from the professional Ax000 line, is likely more suited for ISV-certified applications and compute tasks that rely on FP32 throughput, where its higher clock speed and TFLOPS count can compensate for its smaller shader array. For users prioritizing OpenCL compute, the A5000’s 6.3% deficit is its best showing, making it a more viable choice in that niche.

Ultimately, the data shows a 9-0 sweep for the 3080 Ti in benchmarks, but the A5000’s higher clocks and professional positioning mean it should not be dismissed outright. The GeForce part is the faster GPU, but the A5000 offers a different balance of features that may appeal to specific professional users who value FP32 throughput and clock speed over raw shader count and memory bandwidth.