NVIDIA GeForce RTX 5080 Mobile vs NVIDIA RTX A6000 Comparison

The NVIDIA RTX A6000 and NVIDIA GeForce RTX 5080 Mobile represent two very different philosophies in GPU design: one is a 300 W desktop behemoth built for professional workloads, the other an 80 W mobile chip designed for high-end laptops. Their benchmark results show a clear split between raw compute and everyday graphics performance, with each card dominating in distinct areas. The A6000 takes the overall average benchmark crown with a score of 44,075, but the 5080 Mobile wins 7 of the 9 head-to-head tests, creating an unusual dynamic where the older, larger card wins the sum but loses most of the individual battles.

Head-to-Head Benchmarks

The most decisive victory for the RTX A6000 comes in PassMark GPU Compute, where it scores 14,110 against the 5080 Mobile’s 12,134. That is a 16.3% lead, and it reflects the A6000’s raw FP32 throughput of 38.71 TFLOPS compared to the mobile chip’s 23.04 TFLOPS. Similarly, in Geekbench OpenCL, the A6000 posts 193,937 versus 166,986, a 16.1% advantage. These two results are the foundation of the A6000’s workstation reputation; the data shows it is simply a faster compute engine.

The 5080 Mobile, however, sweeps nearly everything else. The largest single gap is in PassMark DirectX 12, where the mobile card scores 116 against the A6000’s 87, a 25% improvement. It also wins PassMark DirectX 11 by 24.5% (253 vs. 191) and PassMark DirectX 9 by 22% (314 vs. 245). These are not marginal wins; they indicate that the 5080 Mobile’s architecture handles legacy and modern rasterization pipelines far more efficiently, likely due to its newer Blackwell design and higher memory bandwidth relative to its core count.

The 3DMark Steel Nomad DX12 test is exclusive to the 5080 Mobile, where it scores 4,952. This is a modern, demanding benchmark, and the fact that the A6000 has no comparable score suggests the mobile card is better equipped for current-generation gaming loads. In Geekbench Vulkan, the 5080 Mobile also edges ahead, scoring 169,754 versus 164,462, a 3.1% lead. Even in PassMark G3D, a general 3D graphics test, the mobile part wins decisively with 27,711 versus 22,577, an 18.5% margin.

The 5080 Mobile also wins the 2D workload test, posting 1,095 in PassMark G2D against the A6000’s 913, a 16.6% difference. This is notable because 2D performance is often tied to memory bandwidth and driver efficiency, and the mobile chip’s GDDR7 memory appears to give it an edge in this less demanding but still relevant metric.

Where Each One Wins

Looking at the benchmark breakdown, the RTX A6000 is the clear choice for compute-heavy professional tasks. Its wins in OpenCL and GPU Compute align perfectly with workloads like scientific simulation, machine learning inference, and GPU-accelerated rendering, where raw FP32 and tensor core throughput matter more than rasterization speed. The A6000’s 48 GB of GDDR6 memory on a 384-bit bus (768.0 GB/s bandwidth) also makes it suitable for large datasets that would exceed the 5080 Mobile’s 16 GB capacity, even though the mobile card has higher total bandwidth at 896.0 GB/s.

The 5080 Mobile, by contrast, is the winner for graphics-oriented and gaming applications. Its dominance across DirectX 9, 10, 11, and 12 tests, plus Vulkan, shows that it is better optimized for the actual rendering paths used by games and consumer 3D applications. The 25% lead in DirectX 12 is particularly telling, as that is the modern standard for PC gaming. The 5080 Mobile’s higher pixel rate (144.0 GPixel/s vs. 201.6 GPixel/s for the A6000) might suggest the A6000 should win here, but the data contradicts that; the mobile card’s newer architecture and higher clocked GDDR7 memory seem to compensate.

For users who mix workloads, the PassMark G3D result is a useful tiebreaker. The 5080 Mobile’s 18.5% lead in this general 3D test suggests it handles a broader range of graphics tasks better. However, the A6000’s 84th percentile ranking among all GPUs, compared to the 5080 Mobile’s 81st, indicates that the desktop card is still rated higher overall by the aggregate benchmark database, largely due to its compute strength.

Architecture Differences

The two GPUs are built on fundamentally different process nodes and architectures. The RTX A6000 uses the GA102 chip on Samsung’s 8 nm process, featuring 28,300 million transistors on a 628 mm² die. This yields a transistor density of 45.1M per mm². The 5080 Mobile, by contrast, uses the GB203 chip on TSMC’s 5 nm process, packing 45,600 million transistors into a much smaller 378 mm² die, achieving a density of 120.6M per mm². This is more than 2.5 times the transistor density, which explains how the mobile chip can deliver competitive performance at a fraction of the power draw.

The core configurations differ sharply. The A6000 has 10,752 shading units, 336 TMUs, and 112 ROPs, while the 5080 Mobile has 7,680 shading units, 240 TMUs, and 96 ROPs. The A6000 also has more RT cores (84 vs. 60) and tensor cores (336 vs. 240). However, the 5080 Mobile compensates with much higher effective memory clock speeds: 28 Gbps versus 16 Gbps. Combined with a 256-bit bus, this gives the mobile card 896.0 GB/s of bandwidth, which is 128 GB/s more than the A6000’s 768.0 GB/s despite the A6000’s wider 384-bit interface.

The clock speeds tell a similar story. The A6000 runs at a 1410 MHz base and 1800 MHz boost, while the 5080 Mobile is rated at 975 MHz base and 1500 MHz boost. The A6000’s higher clocks contribute to its FP32 peak of 38.71 TFLOPS, while the 5080 Mobile manages 23.04 TFLOPS. Power consumption is the biggest differentiator: the A6000 draws 300 W and requires an 8-pin EPS connector with a suggested 700 W power supply, whereas the 5080 Mobile is an IGP (integrated GPU) with no dedicated power connectors and an 80 W TDP. The mobile chip also supports PCIe 5.0 x16, while the A6000 uses PCIe 4.0 x16.

The A6000 was released on October 4, 2020, and is now end-of-life, with a launch MSRP of 4,649 USD. The 5080 Mobile launched on April 1, 2025, and remains active. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical.

The Verdict

The data points to a clear division of purpose. For professional compute and AI workloads, the RTX A6000 is the superior card. Its 16.1% and 16.3% wins in OpenCL and GPU Compute, respectively, are decisive, and its 48 GB memory capacity is unmatched by the mobile part. The A6000’s 38.71 TFLOPS FP32 performance is 68% higher than the 5080 Mobile’s 23.04 TFLOPS, making it the obvious choice for number-crunching tasks. Its 84th percentile ranking confirms it outclasses most GPUs in aggregate performance.

For gaming and general 3D graphics, the 5080 Mobile is the better buy. It wins every DirectX test by margins ranging from 9.4% (DX10) to 25% (DX12), plus a 3.1% lead in Vulkan and an 18.5% lead in PassMark G3D. The mobile card’s superior bandwidth (896.0 GB/s) and newer architecture more than compensate for its lower core count. The 5080 Mobile’s 81st percentile ranking is only slightly below the A6000, and its 80 W TDP makes it feasible for laptops where the 300 W A6000 is physically impossible to install.

Users who prioritize portability and power efficiency should choose the 5080 Mobile. It delivers competitive graphics performance at 80 W, versus the A6000’s 300 W. The mobile card’s GDDR7 memory and PCIe 5.0 interface also make it more future-proof for upcoming games. Conversely, users who need maximum compute throughput for professional workloads, and who can accommodate a dual-slot, 267 mm card, should choose the A6000. It is end-of-life, but its compute benchmark leads and larger memory pool make it a viable workstation card even in 2025.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA RTX A6000 has a higher average benchmark score of 44,075, compared to the NVIDIA GeForce RTX 5080 Mobile’s 38,349.

Q: How much faster is the RTX A6000 in compute workloads?

A: In PassMark GPU Compute, the A6000 scores 14,110 versus the 5080 Mobile’s 12,134, a 16.3% lead. In Geekbench OpenCL, it leads by 16.1% with 193,937 points versus 166,986.

Q: What is the biggest single benchmark win for the RTX 5080 Mobile?

A: The 5080 Mobile’s largest win is in PassMark DirectX 12, where it scores 116 against the A6000’s 87, a 25% difference.

Q: How do the memory configurations differ?

A: The A6000 has 48 GB of GDDR6 on a 384-bit bus with 768.0 GB/s bandwidth. The 5080 Mobile has 16 GB of GDDR7 on a 256-bit bus with 896.0 GB/s bandwidth.

Q: What are the power requirements for each card?

A: The RTX A6000 has a 300 W TDP and requires an 8-pin EPS connector with a suggested 700 W power supply. The RTX 5080 Mobile has an 80 W TDP and no dedicated power connectors.

Q: Which GPU supports newer PCIe technology?

A: The RTX 5080 Mobile supports PCIe 5.0 x16, while the RTX A6000 uses PCIe 4.0 x16.