NVIDIA GeForce RTX 4080 Mobile vs NVIDIA RTX A2000 Comparison

The Verdict

The recorded data presents a decisive picture: the NVIDIA GeForce RTX 4080 Mobile outperforms the NVIDIA RTX A2000 in every head-to-head benchmark available. The GeForce part wins both recorded tests, with a 57.6% advantage in Geekbench OpenCL and a 52.6% lead in Geekbench Vulkan. The RTX A2000, however, holds a higher percentile ranking across all GPUs (85th versus 81st for the RTX 4080 Mobile), which reflects its position within the broader database rather than its performance relative to this specific rival. The A2000 also posts a higher average benchmark score of 46,043 against the RTX 4080 Mobile's 38,135, a result shaped by the different test suites recorded for each product.

For users working in workstation-class environments where the A2000's dual-slot, 70 W design with four mini-DisplayPort outputs fits a fixed chassis, that card remains a valid choice. For users needing maximum compute throughput in a portable device, the RTX 4080 Mobile is the clear selection from the data. The RTX 4080 Mobile is an active product, while the A2000 is end-of-life, which further tilts long-term procurement decisions toward the GeForce part. The A2000's launch MSRP was 449 USD; no equivalent figure exists for the RTX 4080 Mobile in the database.

FAQ

Q: Which GPU has the higher FP32 throughput?

A: The NVIDIA GeForce RTX 4080 Mobile records 24.72 TFLOPS FP32, while the NVIDIA RTX A2000 records 7.987 TFLOPS. The GeForce part is roughly three times higher in this metric.

Q: How do the two cards compare in memory capacity and bandwidth?

A: The RTX 4080 Mobile offers 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The RTX A2000 offers 6 GB of GDDR6 on the same 192-bit bus but with 288.0 GB/s bandwidth. The GeForce part has double the capacity and 50% more bandwidth.

Q: What is the thermal design power difference?

A: The RTX A2000 is rated at 70 W, while the RTX 4080 Mobile is rated at 110 W. The A2000 also lists a suggested PSU of 250 W; no suggested PSU is recorded for the mobile part.

Q: Which card has better Geekbench Vulkan performance?

A: The RTX 4080 Mobile scores 145,807 in Geekbench Vulkan versus the A2000's 69,089. The delta is 52.6% in favor of the GeForce part.

Q: Are both GPUs based on the same architecture?

A: No. The RTX A2000 uses the Ampere architecture on an 8 nm Samsung process with the GA106 chip. The RTX 4080 Mobile uses the Ada Lovelace architecture on a 5 nm TSMC process with the AD104 chip.

Q: What is the production status of each card?

A: The RTX A2000 is end-of-life, while the RTX 4080 Mobile is active. The A2000's predecessor is Quadro Turing and its successor is Workstation Ada; the RTX 4080 Mobile's predecessor is GeForce 30 Mobile and its successor is GeForce 50 Mobile.

Architecture Differences

The two GPUs come from different NVIDIA design generations. The RTX A2000 is built on the Ampere architecture, fabricated by Samsung on an 8 nm process. Its chip, GA106, packs 12,000 million transistors into a 276 mm² die, yielding a transistor density of 43.5 million per square millimeter. The RTX 4080 Mobile uses the Ada Lovelace architecture, fabricated by TSMC on a 5 nm process. Its AD104 chip contains 35,800 million transistors on a 294 mm² die, for a density of 121.8 million per square millimeter. The Ada chip is nearly three times denser in transistor packing, which explains its larger compute resource pool despite a similar physical size.

The compute block counts differ sharply. The RTX A2000 has 3,328 shading units, 104 texture mapping units, 48 ROPs, 26 ray tracing cores, and 104 tensor cores. The RTX 4080 Mobile more than doubles most of these: 7,424 shading units, 232 TMUs, 80 ROPs, 58 RT cores, and 232 tensor cores. The ray tracing and tensor core counts scale with the shading unit count, indicating a consistent architecture-wide expansion rather than a targeted boost to one subsystem.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical on paper. The physical implementation, however, diverges: the A2000 is a dual-slot add-in card with no power connectors (drawing power from the PCIe slot), while the RTX 4080 Mobile is an IGP (integrated graphics processor) with no slot width, designed for portable devices. The A2000's display outputs are four mini-DisplayPort 1.4a connectors; the RTX 4080 Mobile's outputs are portable device dependent. The A2000 is 167 mm long and 69 mm high; the RTX 4080 Mobile has no recorded dimensions because it is soldered into laptops.

Specification Differences

The specification sheets diverge on nearly every field. Process node: 8 nm for the A2000, 5 nm for the RTX 4080 Mobile. Foundry: Samsung versus TSMC. Transistor count: 12,000 million versus 35,800 million. Die size: 276 mm² versus 294 mm². Transistor density: 43.5M per mm² versus 121.8M per mm².

Clock speeds also differ. The A2000 has a base clock of 562 MHz and a boost of 1200 MHz. The RTX 4080 Mobile has a base clock of 1290 MHz and a boost of 1665 MHz. Memory clocks are 1500 MHz (12 Gbps effective) for the A2000 versus 2250 MHz (18 Gbps effective) for the RTX 4080 Mobile.

Memory configuration: 6 GB GDDR6 on a 192-bit bus for the A2000, 12 GB GDDR6 on the same 192-bit bus for the RTX 4080 Mobile. Bandwidth scales from 288.0 GB/s to 432.0 GB/s.

Compute rates: pixel rate is 57.60 GPixel/s versus 133.2 GPixel/s; texture rate is 124.8 GTexel/s versus 386.3 GTexel/s; FP32 is 7.987 TFLOPS versus 24.72 TFLOPS; FP16 is also 7.987 TFLOPS for the A2000 and 24.72 TFLOPS for the RTX 4080 Mobile, both at 1:1 ratio.

Power: TDP is 70 W for the A2000, 110 W for the RTX 4080 Mobile. The A2000 lists a suggested PSU of 250 W, while the RTX 4080 Mobile has none. Bus interface is PCIe 4.0 x16 for both. Release dates: the A2000 launched 2021-08-09, the RTX 4080 Mobile 2023-01-02.

Head-to-Head Benchmarks

The database records two direct comparisons between these GPUs. The first is Geekbench OpenCL, where the RTX 4080 Mobile scores 159,575 against the A2000's 67,695. The delta is 57.6% in favor of the GeForce part. That gap is substantial and consistent with the FP32 compute difference: the RTX 4080 Mobile's 24.72 TFLOPS is roughly 3.1 times the A2000's 7.987 TFLOPS, though the OpenCL test result shows a smaller advantage, likely due to memory bandwidth and driver overhead effects.

The second benchmark is Geekbench Vulkan, where the RTX 4080 Mobile scores 145,807 against the A2000's 69,089. The delta is 52.6%. In both tests, the GeForce part wins by a similar margin, suggesting the performance gap is broad across API families rather than specific to one workload type. The A2000's Vulkan score (69,089) is actually slightly higher than its OpenCL score (67,695), while the RTX 4080 Mobile's Vulkan score (145,807) is lower than its OpenCL score (159,575). The RTX 4080 Mobile's advantage narrows slightly under Vulkan, but remains decisive.

The A2000 records no wins in the head-to-head dataset; the RTX 4080 Mobile takes both. The A2000 does have a third benchmark in its own listing, 3DMark Steel Nomad DX12 with a score of 1,345, but no comparable result is recorded for the RTX 4080 Mobile in the head-to-head table. The RTX 4080 Mobile also has Passmark results (DirectX 9 through 12, G2D, G3D, and GPU compute), but the A2000 has no Passmark entries in the database, so those cannot be compared directly.

Where Each One Wins

Based on the recorded benchmarks, the RTX 4080 Mobile wins in every measurable compute comparison. Its 57.6% OpenCL lead and 52.6% Vulkan lead indicate superior raw throughput for general-purpose GPU compute and graphics API workloads. The 12 GB memory capacity and 432.0 GB/s bandwidth give it a clear advantage in memory-bound tasks such as large dataset processing, high-resolution texture streaming, or machine learning inference with larger batch sizes. The higher pixel rate (133.2 GPixel/s versus 57.60 GPixel/s) and texture rate (386.3 GTexel/s versus 124.8 GTexel/s) further support its position in rasterization-heavy applications.

The RTX A2000's wins are not in performance but in form factor and deployment context. It is a dual-slot, 70 W card with no external power connectors, designed to fit into a standard workstation chassis with a modest 250 W suggested PSU. Its four mini-DisplayPort 1.4a outputs support multi-display workstation setups directly. The RTX 4080 Mobile, being an IGP, requires a laptop or all-in-one chassis and its display outputs depend on the portable device's design. The A2000 also holds a higher percentile among all GPUs (85th versus 81st), which reflects its position relative to the wider database of tested cards. Its average benchmark score of 46,043 exceeds the RTX 4080 Mobile's 38,135, though the two averages are computed from different test sets and should not be read as a direct performance comparison.

For users who need a drop-in workstation GPU with low power draw and multi-monitor output, the A2000 remains relevant despite being end-of-life. For users who need peak compute performance in a mobile platform, the RTX 4080 Mobile is the only choice supported by the data. The GeForce part's active production status and newer architecture make it the forward-looking pick for new designs.