NVIDIA GeForce RTX 4080 Mobile vs NVIDIA RTX A2000 12 GB Comparison

The NVIDIA GeForce RTX 4080 Mobile and the NVIDIA RTX A2000 12 GB represent two distinct branches of NVIDIA’s GPU lineup: one aimed at high-performance gaming laptops, the other at compact professional workstations. The data shows a clear performance hierarchy, but the A2000 retains relevance in specific professional contexts. Benchmark results indicate the RTX 4080 Mobile leads decisively, yet the comparison is not without nuance, as architectural and form-factor differences play a significant role.

Head-to-Head Benchmarks

The only directly comparable benchmark in the data is Geekbench OpenCL, and the result is lopsided. The RTX 4080 Mobile scores 159,575 points, while the RTX A2000 12 GB scores 66,998 points. This represents a delta of 138.2% in favor of the GeForce part. In practical terms, the RTX 4080 Mobile delivers more than twice the raw compute throughput in this general-purpose GPU compute test. This is a massive gap, not a marginal one.

Looking at the average benchmark scores, the RTX 4080 Mobile achieves 38,135 points, compared to the A2000’s 34,154 points. While the Geekbench OpenCL delta is enormous, the average score difference is much smaller—only about 11.7% higher for the RTX 4080 Mobile. This discrepancy suggests that the RTX 4080 Mobile’s advantage is not uniform across all workloads. The Geekbench OpenCL test appears to heavily favor the RTX 4080 Mobile’s architecture, while other benchmarks, possibly those more dependent on driver optimizations or specific feature sets, narrow the gap.

The percentile rankings reinforce the overall picture. The RTX 4080 Mobile sits at the 81st percentile of all GPUs, while the A2000 sits at the 79th percentile. Both are above-average performers, but the GeForce part is positioned slightly higher in the overall distribution. The nearest rivals for the RTX 4080 Mobile include the NVIDIA GeForce RTX 5080 Mobile (delta of -0.6%) and the NVIDIA GeForce RTX 4070 (delta of 1.3%), indicating it is in the same performance class as those newer and desktop parts. The A2000’s nearest rivals include the AMD Radeon RX 560 XT (delta of 0.1%) and the NVIDIA RTX A1000 (delta of -0.2%), placing it in a more modest performance tier.

Architecture Differences

The two GPUs are built on fundamentally different architectures and process nodes. The RTX 4080 Mobile uses the AD104 chip based on Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. The A2000 uses the GA106 chip based on Ampere architecture, fabricated on an 8 nm process at Samsung. This process node difference is significant, as the smaller 5 nm node allows for higher transistor density and efficiency. The RTX 4080 Mobile packs 35,800 million transistors on a 294 mm² die, resulting in a transistor density of 121.8M per mm². The A2000, by contrast, has 12,000 million transistors on a 276 mm² die, with a density of just 43.5M per mm².

The core configurations diverge sharply. The RTX 4080 Mobile features 7,424 shading units, 232 texture mapping units (TMUs), and 80 raster operation units (ROPs). It also includes 58 ray tracing cores and 232 tensor cores. The A2000 is far more modest, with 3,328 shading units, 104 TMUs, and 48 ROPs, along with 26 ray tracing cores and 104 tensor cores. This means the RTX 4080 Mobile has more than double the shading units and TMUs, and roughly 66% more ROPs.

Clock speeds also differ substantially. The RTX 4080 Mobile has a base clock of 1290 MHz and a boost clock of 1665 MHz. The A2000 operates at a much lower 562 MHz base and 1200 MHz boost. This lower clock speed, combined with fewer cores, explains the A2000’s compute deficit. The memory subsystems are similar in capacity but differ in speed. Both have 12 GB of GDDR6 memory on a 192-bit bus, but the RTX 4080 Mobile achieves 432.0 GB/s of bandwidth with 18 Gbps effective memory speed, while the A2000 manages 288.0 GB/s with 12 Gbps effective speed.

The power envelopes reflect their intended use cases. The RTX 4080 Mobile has a TDP of 110 W, while the A2000 is rated at 70 W. The A2000 is also a dual-slot card with a 167 mm length, while the RTX 4080 Mobile is an IGP (integrated into the motherboard), designed for laptops. The A2000 lists a suggested PSU of 250 W, and its display outputs are 4x mini-DisplayPort 1.4a, whereas the RTX 4080 Mobile’s display outputs are portable-device dependent.

Where Each One Wins

The RTX 4080 Mobile wins the compute benchmark outright, and the architecture suggests it should win in most performance-sensitive scenarios. Its 24.72 TFLOPS FP32 throughput dwarfs the A2000’s 7.987 TFLOPS. Similarly, the pixel rate of 133.2 GPixel/s and texture rate of 386.3 GTexel/s for the RTX 4080 Mobile are far ahead of the A2000’s 57.60 GPixel/s and 124.8 GTexel/s. For any workload that heavily utilizes shading, ray tracing, or tensor operations, the RTX 4080 Mobile is the superior choice based on these figures.

The A2000’s wins are not in raw performance but in form factor and power efficiency. Its 70 W TDP is significantly lower than the RTX 4080 Mobile’s 110 W, making it suitable for systems with tighter thermal and power budgets. The A2000 is a self-contained dual-slot card with four mini-DisplayPort outputs, allowing it to be installed in a standard desktop workstation without needing a laptop chassis. Its end-of-life production status also indicates it is a mature, stable product, whereas the RTX 4080 Mobile is active and current.

In terms of benchmark wins, the head-to-head data shows 1 win for the RTX 4080 Mobile and 0 for the A2000. However, the average benchmark scores tell a more nuanced story. The A2000’s average score of 34,154 is within 11.7% of the RTX 4080 Mobile’s average of 38,135, suggesting that in some tests the gap is much smaller than the Geekbench OpenCL result implies. The A2000’s nearest rivals include the NVIDIA TITAN V, which is a high-end desktop GPU, indicating that the A2000 holds its own in certain professional applications.

The Verdict

The data is unambiguous on raw performance: the NVIDIA GeForce RTX 4080 Mobile is the faster GPU by a wide margin. Its 138.2% lead in Geekbench OpenCL, combined with higher core counts, clock speeds, and memory bandwidth, makes it the clear choice for any user prioritizing compute throughput. The RTX 4080 Mobile also holds a higher percentile ranking (81st vs. 79th) and a higher average benchmark score (38,135 vs. 34,154).

However, the RTX A2000 12 GB is not without merit. Its 70 W TDP is substantially lower than the RTX 4080 Mobile’s 110 W, making it more appropriate for compact workstations where power and thermal limits are strict. The A2000’s dual-slot design and standard display outputs make it easier to integrate into existing desktop systems. Its end-of-life status may be a concern for long-term support, but it also means the product is mature and well-tested.

For a mobile gaming or high-performance laptop, the RTX 4080 Mobile is the obvious pick, given its 24.72 TFLOPS FP32 performance and 432.0 GB/s bandwidth. For a professional workstation that requires a low-profile, power-efficient card with four mini-DisplayPort outputs, the A2000 is the more practical option. The choice ultimately depends on whether raw performance or form-factor efficiency is the priority. The data shows the RTX 4080 Mobile dominates on speed, but the A2000 wins on operational flexibility.

FAQ

Q: Which GPU has a higher Geekbench OpenCL score?

A: The NVIDIA GeForce RTX 4080 Mobile scores 159,575, which is 138.2% higher than the RTX A2000 12 GB’s score of 66,998.

Q: What is the TDP difference between the two GPUs?

A: The RTX 4080 Mobile has a TDP of 110 W, while the RTX A2000 12 GB has a TDP of 70 W.

Q: Do both GPUs have the same amount of memory?

A: Yes, both have 12 GB of GDDR6 memory, but the RTX 4080 Mobile has a higher memory bandwidth of 432.0 GB/s compared to 288.0 GB/s for the A2000.

Q: What are the process nodes for each GPU?

A: The RTX 4080 Mobile is built on a 5 nm process at TSMC, while the RTX A2000 12 GB uses an 8 nm process at Samsung.

Q: Which GPU has more shading units?

A: The RTX 4080 Mobile has 7,424 shading units, more than double the A2000’s 3,328 shading units.

Q: What is the production status of each GPU?

A: The RTX 4080 Mobile is listed as "Active," while the RTX A2000 12 GB is listed as "End-of-life."

Specification Differences

| Specification | NVIDIA GeForce RTX 4080 Mobile | NVIDIA RTX A2000 12 GB |

|---|---|---|

| Chip | AD104 | GA106 |

| Architecture | Ada Lovelace | Ampere |

| Process Node | 5 nm | 8 nm |

| Foundry | TSMC | Samsung |

| Transistors | 35,800 million | 12,000 million |

| Die Size | 294 mm² | 276 mm² |

| Base Clock | 1290 MHz | 562 MHz |

| Boost Clock | 1665 MHz | 1200 MHz |

| Memory Speed | 2250 MHz / 18 Gbps effective | 1500 MHz / 12 Gbps effective |

| Memory Bandwidth | 432.0 GB/s | 288.0 GB/s |

| Shading Units | 7424 | 3328 |

| TMUs | 232 | 104 |

| ROPs | 80 | 48 |

| RT Cores | 58 | 26 |

| Tensor Cores | 232 | 104 |

| Pixel Rate | 133.2 GPixel/s | 57.60 GPixel/s |

| Texture Rate | 386.3 GTexel/s | 124.8 GTexel/s |

| FP32 Performance | 24.72 TFLOPS | 7.987 TFLOPS |

| TDP | 110 W | 70 W |

| Slot Width | IGP | Dual-slot |

| Power Connectors | None | None |

| Suggested PSU | Not listed | 250 W |

| Display Outputs | Portable Device Dependent | 4x mini-DisplayPort 1.4a |

| Dimensions | Not listed | 167 mm / 6.6 inches (length), 69 mm / 2.7 inches (height) |

| Production Status | Active | End-of-life |

| Release Date | 2023-01-02 | 2021-11-22 |

| Predecessor | GeForce 30 Mobile | Quadro Turing |

| Successor | GeForce 50 Mobile | Workstation Ada |

| Launch MSRP | Not listed | 449 USD |