GPU Comparison

The NVIDIA RTX A6000 and the NVIDIA GeForce RTX 3080 Ti are both built on the same GA102 chip and Ampere architecture, yet the data shows they are tuned for entirely different arenas. The A6000 is a workstation card with a 48 GB memory pool, while the 3080 Ti is a high-end consumer part with 12 GB. Benchmark results reveal a clear split: the RTX 3080 Ti dominates in the majority of tests, while the A6000 wins decisively in one key compute workload. This analysis breaks down where each card excels, what the silicon differences mean, and how the head-to-head numbers stack up.

Where Each One Wins

The benchmark data paints a straightforward picture of specialization. The NVIDIA GeForce RTX 3080 Ti wins 8 of the 9 head-to-head comparisons, establishing itself as the stronger performer in most rasterization and graphics-oriented tasks. Its wins span the DirectX 9, 10, 11, and 12 suites, alongside Vulkan and the Passmark 2D and 3D tests. This suggests a clear advantage in gaming and general graphics workloads, where its higher boost clock and faster memory type (GDDR6X) appear to pay dividends.

The NVIDIA RTX A6000, by contrast, secures only a single win, but it is a significant one: Geekbench OpenCL. In this compute-heavy test, the A6000 scores 193,937 against the 3080 Ti’s 170,037, a 14.1% lead. This indicates that the workstation card is optimized for raw computational throughput, likely benefiting from its larger number of shading units (10,752 vs. 10,240) and tensor cores (336 vs. 320). The data implies a use-case split: the 3080 Ti is the better choice for graphics and DirectX-based applications, while the A6000 holds the edge in OpenCL compute tasks that leverage its full array of processing cores.

The gap in average benchmark scores reinforces this division. The RTX A6000 has an average benchmark score of 44,075, placing it in the 84th percentile of all GPUs. The RTX 3080 Ti averages 41,187, in the 83rd percentile. Despite winning fewer head-to-head tests, the A6000 scores higher on average, which suggests its performance profile is more consistent across a wider range of workloads, even if it loses specific graphics tests. The 3080 Ti’s wins are often substantial, but the A6000’s single OpenCL victory and higher overall average indicate a broader compute capability.

Architecture Differences

Both cards are fabricated on an 8 nm process at Samsung, with an identical die size of 628 mm² and 28,300 million transistors. The transistor density is the same at 45.1M per mm². The core architecture is Ampere for both, but the configuration differs in several key ways. The RTX A6000 features 10,752 shading units, 336 TMUs, and 112 ROPs, while the RTX 3080 Ti has 10,240 shading units, 320 TMUs, and the same 112 ROPs. This gives the A6000 a 5% advantage in raw shading capacity and a 5% lead in texture units.

Clock speeds are where the 3080 Ti compensates. The 3080 Ti has a base clock of 1365 MHz and a boost of 1665 MHz, while the A6000 runs at 1410 MHz base and 1800 MHz boost. Despite the A6000’s higher clocks, the 3080 Ti achieves higher pixel and texture rates in the data? No, the A6000 has a higher pixel rate (201.6 GPixel/s vs. 186.5 GPixel/s) and texture rate (604.8 GTexel/s vs. 532.8 GTexel/s). The 3080 Ti’s advantage in benchmarks must come from other factors, likely memory bandwidth and driver optimizations for consumer workloads.

The memory subsystem is a major differentiator. The A6000 uses 48 GB of GDDR6 on a 384-bit bus, delivering 768.0 GB/s of bandwidth. The 3080 Ti uses 12 GB of GDDR6X on the same 384-bit bus, but achieves 912.4 GB/s. The GDDR6X memory is faster, providing a 18.8% bandwidth advantage. The A6000’s four times larger memory capacity is clearly aimed at datasets that exceed 12 GB, which is a common requirement in professional visualization, AI training, and large-scale rendering. The 3080 Ti’s faster bandwidth is better suited for high-resolution textures and rapid frame buffer access.

Other architectural differences include the RT and tensor core counts. The A6000 has 84 RT cores and 336 tensor cores, while the 3080 Ti has 80 and 320, respectively. These are proportional to the shading unit counts. The power delivery also differs: the A6000 uses an 8-pin EPS connector with a 300 W TDP, while the 3080 Ti uses a 1x 12-pin connector with a 350 W TDP. The A6000’s lower power draw is notable for multi-GPU workstation builds.

Head-to-Head Benchmarks

The benchmark results show a consistent pattern of the RTX 3080 Ti outperforming the RTX A6000 in graphics tests. The largest delta is in Passmark DirectX 12, where the 3080 Ti scores 110 versus the A6000’s 87, a 20.9% advantage. This is a significant margin and suggests the 3080 Ti has a much stronger DirectX 12 implementation for gaming. Similarly, in Passmark G3D, the 3080 Ti scores 26,896 against 22,577, a 16.1% lead. This general 3D test corroborates the DirectX 12 result.

The 3080 Ti also wins in Vulkan, scoring 192,697 to the A6000’s 164,462, a 14.7% difference. This is interesting because Vulkan is often used in both gaming and professional applications. The 3080 Ti’s lead here suggests its driver stack is better optimized for this API. The DirectX 11 test shows a 14.3% advantage for the 3080 Ti (223 vs. 191), and the DirectX 10 test shows a 15.8% lead (184 vs. 155). Even the DirectX 9 test shows a 10.6% win for the 3080 Ti (274 vs. 245).

The 2D performance also favors the 3080 Ti. In Passmark G2D, the 3080 Ti scores 1,091 against 913, a 16.3% lead. This is surprising for a workstation card, as 2D performance is often not a focus, but the data shows the consumer card is faster here. The Passmark GPU Compute test is closer, with the 3080 Ti winning by 7.7% (15,282 vs. 14,110), but it is still a loss for the A6000.

The A6000’s sole victory in Geekbench OpenCL (193,937 vs. 170,037, a 14.1% lead) is notable because OpenCL is a cross-platform compute API. This win indicates that the A6000’s higher core count and potentially different driver behavior for compute workloads give it an edge in this specific test. It is a reminder that while the 3080 Ti dominates in graphics APIs, the A6000 has a compute advantage that could be relevant for scientific and engineering software that relies on OpenCL.

FAQ

Q: Which card has a higher average benchmark score?

A: The NVIDIA RTX A6000 has a higher average benchmark score of 44,075, compared to the RTX 3080 Ti’s 41,187. The A6000 also sits in the 84th percentile of all GPUs, one point higher than the 3080 Ti’s 83rd percentile.

Q: Why does the RTX 3080 Ti win most graphics tests despite having fewer shading units?

A: The RTX 3080 Ti has a memory bandwidth advantage of 912.4 GB/s versus 768.0 GB/s for the A6000. It also uses faster GDDR6X memory, which likely contributes to better performance in graphics APIs like DirectX and Vulkan, where the 3080 Ti leads by margins from 10.6% to 20.9%.

Q: What is the primary advantage of the RTX A6000 in benchmarks?

A: The A6000 wins the Geekbench OpenCL test with a score of 193,937, a 14.1% lead over the 3080 Ti’s 170,037. This suggests an advantage in compute workloads that utilize OpenCL, likely due to its higher core counts.

Q: How does memory capacity differ between the two cards?

A: The RTX A6000 has 48 GB of GDDR6 memory, while the RTX 3080 Ti has 12 GB of GDDR6X. Both use a 384-bit bus, but the 3080 Ti has higher bandwidth at 912.4 GB/s compared to 768.0 GB/s for the A6000.

Q: Are there any benchmark tests where the cards are closely matched?

A: The closest result is in Passmark GPU Compute, where the 3080 Ti wins by 7.7% (15,282 vs. 14,110). This is the smallest margin among the 3080 Ti’s wins, indicating the A6000 is more competitive in compute tasks than in graphics.

Q: What are the clock speed differences?

A: The RTX A6000 has a base clock of 1410 MHz and a boost clock of 1800 MHz. The RTX 3080 Ti has a base clock of 1365 MHz and a boost of 1665 MHz. The A6000 runs at higher clocks, yet still loses most graphics tests.

Specification Differences

The following table highlights the key specifications where the two cards differ.

| Specification | NVIDIA RTX A6000 | NVIDIA GeForce RTX 3080 Ti |

| :--- | :--- | :--- |

| Memory Size | 48 GB | 12 GB |

| Memory Type | GDDR6 | GDDR6X |

| Memory Clock | 2000 MHz (16 Gbps effective) | 1188 MHz (19 Gbps effective) |

| Memory Bandwidth | 768.0 GB/s | 912.4 GB/s |

| Shading Units | 10752 | 10240 |

| TMUs | 336 | 320 |

| RT Cores | 84 | 80 |

| Tensor Cores | 336 | 320 |

| Base Clock | 1410 MHz | 1365 MHz |

| Boost Clock | 1800 MHz | 1665 MHz |

| Pixel Rate | 201.6 GPixel/s | 186.5 GPixel/s |

| Texture Rate | 604.8 GTexel/s | 532.8 GTexel/s |

| FP32 Performance | 38.71 TFLOPS | 34.10 TFLOPS |

| FP16 Performance | 38.71 TFLOPS (1:1) | 34.10 TFLOPS (1:1) |

| TDP | 300 W | 350 W |

| Power Connectors | 8-pin EPS | 1x 12-pin |

| Suggested PSU | 700 W | 750 W |

| Display Outputs | 4x DisplayPort 1.4a | 1x HDMI 2.1, 3x DisplayPort 1.4a |

| Dimensions (Length) | 267 mm (10.5 inches) | 285 mm (11.2 inches) |

| Dimensions (Width) | Not specified | 40 mm (1.6 inches) |

| Release Date | 2020-10-04 | 2021-05-30 |

| Launch MSRP | 4,649 USD | 1,199 USD |

| Generation | Workstation Ampere (Ax000) | GeForce 30 |

The Verdict

The data suggests a clear choice based on workload. For users prioritizing graphics performance in DirectX or Vulkan APIs, the NVIDIA GeForce RTX 3080 Ti is the stronger card. It wins all four DirectX tests, Vulkan, and both the G2D and G3D Passmark tests, with margins ranging from 10.6% to 20.9%. Its higher memory bandwidth and GDDR6X memory appear to be decisive factors in these scenarios. This makes it the logical pick for gaming or consumer-level 3D applications.

For professionals whose work relies on OpenCL compute, the NVIDIA RTX A6000 is the better option. Its 14.1% lead in Geekbench OpenCL, combined with its higher average benchmark score and 84th percentile ranking, indicates superior compute throughput. The 48 GB memory capacity is also a critical advantage for workloads that require loading large datasets, which the 3080 Ti’s 12 GB cannot accommodate. The A6000 also offers higher FP32 and FP16 performance (38.71 TFLOPS vs. 34.10 TFLOPS), reinforcing its compute focus.

The choice ultimately hinges on whether the primary driver is graphics rendering or data processing. The 3080 Ti excels at rasterization, while the A6000 offers a compute advantage and substantially more memory. The A6000’s higher launch MSRP reflects its workstation positioning, but the benchmark data shows that in raw graphics tests, the consumer card is faster. The A6000’s single win is in a compute API, suggesting that its value lies in specific professional applications rather than general graphics performance.