GPU Comparison

The NVIDIA GeForce RTX 4080 and NVIDIA RTX A1000 Mobile represent opposite ends of the GPU spectrum, one a triple-slot desktop behemoth and the other an integrated-class mobile part. The benchmark data shows a decisive performance gap, with the RTX 4080 leading by margins that range from substantial to astronomical, yet the A1000 Mobile holds its own in its specific niche. This analysis compares their raw scores, architectural foundations, and the use cases where each part’s unique characteristics matter most.

Head-to-Head Benchmarks

The head-to-head comparison between these two GPUs is defined by two synthetic tests: Geekbench OpenCL and Geekbench Vulkan. In Geekbench OpenCL, the NVIDIA GeForce RTX 4080 scores 214,739 points, while the NVIDIA RTX A1000 Mobile manages 48,703 points. That is a delta of 340.9% in favor of the RTX 4080. In Geekbench Vulkan, the gap widens further: the RTX 4080 scores 263,779 points against the A1000 Mobile’s 46,782 points, a 463.8% advantage. These are not incremental wins; the RTX 4080 outperforms the mobile part by over four times in the Vulkan test.

The RTX 4080’s average benchmark score of 54,247 places it in the 86th percentile of all GPUs, and its nearest rivals are telling. It sits just 0.1% behind the NVIDIA GeForce RTX 4080 SUPER (avg score 54,209) and 1.1% ahead of the AMD Radeon Pro W5700X (avg score 54,828). Meanwhile, the RTX A1000 Mobile, with an average score of 47,743, lands in the 85th percentile. Its nearest rivals include the AMD Radeon RX 6800 XT (avg score 48,477, 1.5% ahead) and the AMD Radeon RX 6550M (avg score 46,702, 2.2% behind). The percentile rankings are nearly identical, yet the absolute scores reveal the massive gulf in raw compute.

Looking at the broader benchmark suite for the RTX 4080, its performance is consistent across APIs. In Passmark G3D, it scores 34,457, and in Passmark GPU Compute it reaches 20,671. The 3DMark Steel Nomad DX12 test yields 6,567 points. The A1000 Mobile has no corresponding Passmark or 3DMark data in the pack, so direct comparisons there are impossible. However, the Geekbench results alone establish the hierarchy: the RTX 4080 wins both head-to-head tests, and the data shows no scenario where the A1000 Mobile closes the gap.

Where Each One Wins

The NVIDIA GeForce RTX 4080 wins every benchmark where both GPUs have scores. In Geekbench OpenCL, its 340.9% lead means it is the clear choice for any compute-heavy workload that scales with raw throughput. The Vulkan result, with a 463.8% advantage, reinforces this for graphics APIs that leverage modern asynchronous compute and ray tracing features. For desktop gaming, rendering, or GPU-accelerated productivity, the RTX 4080 is categorically superior.

The NVIDIA RTX A1000 Mobile wins in a different arena: physical footprint and power envelope. It is an IGP (integrated graphics processor) with no power connectors and a 60 W TDP, compared to the RTX 4080’s 320 W TDP and 1x 16-pin connector. The A1000 Mobile is designed for portable devices, with its display outputs listed as “Portable Device Dependent.” It has no dimensions listed because it is not a discrete card. In scenarios where space, cooling, and battery life are paramount, such as a mobile workstation, the A1000 Mobile is the only viable option of the two. The RTX 4080, at 310 mm in length and triple-slot width, cannot physically fit in such a chassis.

For users who need a GPU for a laptop or compact system, the A1000 Mobile’s 4 GB of GDDR6 memory and 128-bit bus are sufficient for light to moderate tasks. Its 16 RT cores and 64 tensor cores provide entry-level ray tracing and AI acceleration. The data does not show it winning any performance contest, but its existence in the mobile segment is its own win.

Architecture Differences

The architectural gap between these two GPUs is as wide as the performance gap. The RTX 4080 uses the AD103 chip on TSMC’s 5 nm process, packing 45,900 million transistors into a 379 mm² die. That yields a transistor density of 121.1 million per mm². The A1000 Mobile uses the GA107 chip on Samsung’s 8 nm process, with 8,700 million transistors on a 200 mm² die, giving a density of 43.5 million per mm². The RTX 4080’s process node is two generations ahead, and its transistor density is nearly triple that of the A1000 Mobile.

The compute resources differ by an order of magnitude. The RTX 4080 has 9,728 shading units, 304 texture mapping units (TMUs), and 112 raster output units (ROPs). The A1000 Mobile has 2,048 shading units, 64 TMUs, and 32 ROPs. The RTX 4080’s 76 RT cores and 304 tensor cores dwarf the A1000 Mobile’s 16 RT cores and 64 tensor cores. Clock speeds also diverge: the RTX 4080 boosts to 2,505 MHz from a 2,205 MHz base, while the A1000 Mobile boosts to 1,140 MHz from a 630 MHz base. The RTX 4080’s FP32 throughput is 48.74 TFLOPS, versus 4.669 TFLOPS for the A1000 Mobile, a 10.4x difference.

Memory is another clear divider. The RTX 4080 features 16 GB of GDDR6X on a 256-bit bus, delivering 716.8 GB/s of bandwidth. The A1000 Mobile has 4 GB of GDDR6 on a 128-bit bus, yielding 176.0 GB/s. The RTX 4080’s effective memory speed is 22.4 Gbps, while the A1000 Mobile runs at 11 Gbps. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, but their underlying architectures, Ada Lovelace versus Ampere, are distinct generations. The RTX 4080 is part of the GeForce 40 series, launched in September 2022, while the A1000 Mobile belongs to the Ampere-MW (Ax000) generation, launched in March 2022.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA GeForce RTX 4080 has an average benchmark score of 54,247, compared to 47,743 for the NVIDIA RTX A1000 Mobile. The RTX 4080 sits in the 86th percentile of all GPUs, while the A1000 Mobile is in the 85th percentile.

Q: What is the biggest performance gap between the two in a single test?

A: In Geekbench Vulkan, the RTX 4080 leads by 463.8%, scoring 263,779 against the A1000 Mobile’s 46,782. This is the largest delta of the two head-to-head tests.

Q: How do the memory bandwidths compare?

A: The RTX 4080 has a memory bandwidth of 716.8 GB/s using 16 GB of GDDR6X on a 256-bit bus. The A1000 Mobile has 176.0 GB/s using 4 GB of GDDR6 on a 128-bit bus.

Q: Are both GPUs end-of-life products?

A: Yes, both the NVIDIA GeForce RTX 4080 and the NVIDIA RTX A1000 Mobile are listed as end-of-life in production status. The RTX 4080’s predecessor is the GeForce 30 series, and its successor is the GeForce 50 series. The A1000 Mobile’s predecessor is the Quadro Turing-M, and its successor is Ada-MW.

Q: What is the TDP difference between the two?

A: The RTX 4080 has a TDP of 320 W and requires a 700 W suggested PSU, while the A1000 Mobile has a TDP of 60 W and requires no power connectors.

Q: Which GPU has more RT cores?

A: The RTX 4080 has 76 RT cores, while the A1000 Mobile has 16 RT cores. The RTX 4080 also has 304 tensor cores versus 64 on the A1000 Mobile.

The Verdict

The data is unambiguous: the NVIDIA GeForce RTX 4080 is the superior performer by every measurable metric. It wins both head-to-head benchmarks with leads of 340.9% and 463.8%, has a higher average score (54,247 vs 47,743), and offers 10.4x the FP32 throughput. For any desktop workstation, gaming rig, or rendering farm, the RTX 4080 is the only choice from this pair. Its 16 GB of GDDR6X memory and 716.8 GB/s bandwidth make it suitable for high-resolution textures and large datasets. The launch MSRP is 1,199 USD.

The NVIDIA RTX A1000 Mobile is the choice for a different kind of system entirely. Its 60 W TDP, IGP form factor, and lack of power connectors make it suitable for portable devices, and its 4 GB of GDDR6 memory is adequate for light workloads. It does not compete on performance, but it does not need to, it occupies a segment where the RTX 4080 cannot operate. Users who need a GPU in a laptop with no discrete power delivery should pick the A1000 Mobile; users who need raw performance should pick the RTX 4080. The benchmark results offer no middle ground.