NVIDIA GeForce RTX 4080 Mobile vs NVIDIA RTX A5000 Comparison

Where Each One Wins

The benchmark data splits these two GPUs along clear lines. The NVIDIA GeForce RTX 4080 Mobile wins 7 of 9 head-to-head tests, while the NVIDIA RTX A5000 wins only 2. That is the headline, but the specific tests each card wins reveal the real story: the RTX 4080 Mobile dominates graphics workloads, while the RTX A5000 takes compute and 2D tasks.

The RTX 4080 Mobile wins every DirectX test in the comparison. Its largest margin comes in Passmark DirectX 11, where it scores 244 against the A5000's 187, a 30.5% advantage. The DirectX 9 test shows a 13.9% lead (286 vs 251), DirectX 12 shows 10.3% (96 vs 87), and DirectX 10 shows a narrower 2.6% (157 vs 153). This is a clean sweep across all four DirectX API levels, which indicates the Ada Lovelace architecture handles legacy and modern graphics APIs with consistent superiority.

The 3D gaming and rendering picture favors the RTX 4080 Mobile as well. In Passmark G3D, it scores 24926 versus 22541, a 10.6% lead. The Vulkan test shows a 5.8% advantage (145807 vs 137828), and OpenCL shows a slim 1.1% edge (159575 vs 157905). For anyone focused on frame rates, ray tracing workloads, or Vulkan-based games, the RTX 4080 Mobile is the stronger choice.

The RTX A5000 counters in two specific areas. First, Passmark G2D: it scores 1032 versus 929, a 10% advantage. This measures 2D graphics operations, desktop compositing, and basic display output work. Second, Passmark GPU Compute: it scores 12455 versus 11191, a 10.1% lead. This is the more significant win, as it indicates the A5000 handles general-purpose compute workloads, such as CUDA-based rendering, simulation, or data processing, more effectively than the gaming-oriented RTX 4080 Mobile.

The overall average benchmark scores reinforce this split. The RTX 4080 Mobile averages 38135 across all recorded tests, placing it in the 81st percentile of all GPUs in the database. The RTX A5000 averages 33622, placing it in the 78th percentile. The RTX 4080 Mobile's nearest rivals include the GeForce RTX 5080 Mobile (only 0.6% higher average) and the GeForce MX570 (0.4% lower), while the A5000 sits near the GTX 1060 5 GB (0.2% lower) and RX 7700S (0.7% higher). The percentile gap is small, but the per-test breakdown shows why: the A5000's compute strength keeps its average within striking distance despite losing most graphics tests.

Architecture Differences

These two GPUs come from different architectures, different fabs, and different design philosophies. The RTX 4080 Mobile uses the AD104 chip built on Ada Lovelace architecture, fabricated by TSMC on a 5 nm process. The RTX A5000 uses the GA102 chip built on Ampere architecture, fabricated by Samsung on an 8 nm process. The process node difference is significant: the RTX 4080 Mobile packs 35,800 million transistors into a 294 mm² die, giving a transistor density of 121.8 million per square millimeter. The A5000 spreads 28,300 million transistors across a much larger 628 mm² die, yielding only 45.1 million per square millimeter. The RTX 4080 Mobile is more than 2.7 times denser per area, which explains how it achieves higher performance in a mobile form factor.

The core configurations differ in ways that matter for workload distribution. The RTX 4080 Mobile has 7424 shading units, 232 TMUs, and 80 ROPs. The A5000 has more of everything: 8192 shading units, 256 TMUs, and 96 ROPs. The A5000 also leads in ray tracing cores (64 vs 58) and tensor cores (256 vs 232). Yet the RTX 4080 Mobile still wins most graphics tests. This suggests the Ada Lovelace architecture extracts more efficiency per core, and the clock speeds help: the RTX 4080 Mobile boosts to 1665 MHz versus the A5000's 1695 MHz, but the base clocks tell a different story (1290 MHz vs 1170 MHz). The density advantage and architectural improvements appear to outweigh the A5000's raw core count advantage in graphics workloads.

The memory subsystems are radically different. The RTX 4080 Mobile uses 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s of bandwidth. The A5000 uses 24 GB of GDDR6 on a 384-bit bus, delivering 768.0 GB/s. That is double the memory capacity and 77.8% more bandwidth. The A5000's memory configuration is a workstation-class setup, designed for large datasets and high-bandwidth compute tasks. The RTX 4080 Mobile's smaller, lower-bandwidth memory is sufficient for gaming but limits its compute ceiling.

Power and physical design diverge completely. The RTX 4080 Mobile is rated at 110 W TDP, uses no power connectors, and is an IGP (integrated graphics processor) with portable-device-dependent display outputs. The A5000 is a 230 W dual-slot card with a single 8-pin power connector, a suggested 550 W power supply, and four DisplayPort 1.4a outputs. The A5000 is a physical card measuring 267 mm in length and 112 mm in height, designed for workstation desktops. The RTX 4080 Mobile is built into laptops.

The production statuses align with their markets. The RTX 4080 Mobile is Active and was released in January 2023, succeeding the GeForce 30 Mobile series and preceding the GeForce 50 Mobile. The A5000 is End-of-life, released in April 2021, succeeding Quadro Turing and preceding Workstation Ada. The A5000 is a generation older and has been retired from production.

Head-to-Head Benchmarks

The biggest win for the RTX 4080 Mobile is Passmark DirectX 11, where it scores 244 versus the A5000's 187. That 30.5% delta is the largest margin in either direction across all tests. DirectX 11 remains a commonly used API in many games and applications, so this is not a trivial result. The DirectX 9 test shows a 13.9% lead (286 vs 251), and DirectX 12 shows 10.3% (96 vs 87). The DirectX 10 margin is modest at 2.6% (157 vs 153), but it is still a win.

The Passmark G3D result is the most important gaming metric. The RTX 4080 Mobile scores 24926, which is 10.6% higher than the A5000's 22541. This aligns with the DirectX results and confirms the RTX 4080 Mobile's overall 3D graphics superiority. The Vulkan test shows a 5.8% lead (145807 vs 137828), which matters for modern cross-platform games and compute-in-graphics workloads. The OpenCL result is nearly a tie: 159575 vs 157905, a 1.1% edge for the RTX 4080 Mobile. This is close enough to be within measurement noise, but it still registers as a win.

The A5000's two wins are both in non-graphics tests. Passmark G2D shows 1032 vs 929, a 10% lead. This measures 2D acceleration, desktop rendering, and display output efficiency. The A5000's workstation heritage shows here. Passmark GPU Compute shows 12455 vs 11191, a 10.1% lead. This is the more important win for the A5000, as it indicates stronger raw compute throughput for CUDA workloads, rendering, simulation, and data processing. The A5000's higher core counts (8192 shading units, 256 tensor cores) and double memory bandwidth (768.0 GB/s vs 432.0 GB/s) likely drive this result.

The pattern is consistent: the RTX 4080 Mobile wins every graphics-oriented test, the A5000 wins every compute and 2D-oriented test. The RTX 4080 Mobile's 7 wins include all 4 DirectX tests, G3D, Vulkan, and OpenCL. The A5000's 2 wins are G2D and GPU Compute. The average benchmark scores reflect this: 38135 for the RTX 4080 Mobile versus 33622 for the A5000, a 13.4% overall gap.

Specification Differences

The two cards differ in nearly every major specification category.

• Chip and architecture: AD104 on Ada Lovelace (RTX 4080 Mobile) versus GA102 on Ampere (RTX A5000).
• Process node: 5 nm TSMC versus 8 nm Samsung.
• Transistors: 35,800 million versus 28,300 million.
• Die size: 294 mm² versus 628 mm².
• Transistor density: 121.8M / mm² versus 45.1M / mm².
• Base clock: 1290 MHz versus 1170 MHz.
• Boost clock: 1665 MHz versus 1695 MHz.
• Memory clock: 2250 MHz (18 Gbps effective) versus 2000 MHz (16 Gbps effective).
• Memory size: 12 GB versus 24 GB.
• Memory bus: 192-bit versus 384-bit.
• Memory bandwidth: 432.0 GB/s versus 768.0 GB/s.
• Shading units: 7424 versus 8192.
• TMUs: 232 versus 256.
• ROPs: 80 versus 96.
• RT cores: 58 versus 64.
• Tensor cores: 232 versus 256.
• Pixel rate: 133.2 GPixel/s versus 162.7 GPixel/s.
• Texture rate: 386.3 GTexel/s versus 433.9 GTexel/s.
• FP32: 24.72 TFLOPS versus 27.77 TFLOPS.
• FP16: 24.72 TFLOPS (1:1) versus 27.77 TFLOPS (1:1).
• TDP: 110 W versus 230 W.
• Slot width: IGP versus dual-slot.
• Power connectors: None versus 1x 8-pin.
• Suggested PSU: none listed versus 550 W.
• Display outputs: portable device dependent versus 4x DisplayPort 1.4a.
• Dimensions: none listed versus 267 mm length, 112 mm height.
• Production status: Active versus End-of-life.
• Release date: January 2023 versus April 2021.
• Predecessor: GeForce 30 Mobile versus Quadro Turing.
• Successor: GeForce 50 Mobile versus Workstation Ada.

The API support is identical: both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both use PCIe 4.0 x16. The FP32 and FP16 rates are 1:1 on both cards.

FAQ

Q: Which GPU is faster in overall average benchmark score?

A: The NVIDIA GeForce RTX 4080 Mobile has an average benchmark score of 38135, while the NVIDIA RTX A5000 averages 33622. The RTX 4080 Mobile sits in the 81st percentile of all GPUs, the A5000 in the 78th.

Q: How large is the RTX 4080 Mobile's lead in DirectX 11?

A: The RTX 4080 Mobile scores 244 in Passmark DirectX 11 versus the A5000's 187, a 30.5% advantage. This is the largest delta in any head-to-head test between the two.

Q: In which tests does the RTX A5000 beat the RTX 4080 Mobile?

A: The A5000 wins Passmark G2D (1032 vs 929, a 10% lead) and Passmark GPU Compute (12455 vs 11191, a 10.1% lead). These are the only two tests out of nine that the A5000 wins.

Q: How do the memory configurations compare?

A: The RTX 4080 Mobile has 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The RTX A5000 has 24 GB of GDDR6 on a 384-bit bus with 768.0 GB/s bandwidth, which is double the capacity and 77.8% more bandwidth.

Q: What are the power requirements for each card?

A: The RTX 4080 Mobile is rated at 110 W TDP with no power connectors and is designed as an IGP for laptops. The RTX A5000 is rated at 230 W TDP, requires a single 8-pin power connector, and has a suggested 550 W power supply.

Q: Which card has more shading units and tensor cores?

A: The RTX A5000 has 8192 shading units and 256 tensor cores. The RTX 4080 Mobile has 7424 shading units and 232 tensor cores. The A5000 also has more ROPs (96 vs 80), TMUs (256 vs 232), and RT cores (64 vs 58).

The Verdict

The data points to a clear split by use case. For gaming, DirectX workloads, Vulkan applications, and general 3D graphics, the NVIDIA GeForce RTX 4080 Mobile is the stronger GPU. It wins 7 of 9 tests, including all DirectX tests, G3D, Vulkan, and OpenCL. Its 30.5% lead in DirectX 11 and 10.6% lead in G3D are decisive. It also achieves this while drawing 110 W versus the A5000's 230 W, and it is built for mobile integration rather than desktop expansion slots.

For compute-heavy workstation tasks, the NVIDIA RTX A5000 has advantages that matter despite losing most tests. It wins GPU Compute by 10.1%, has double the memory capacity (24 GB vs 12 GB), 77.8% more memory bandwidth (768.0 GB/s vs 432.0 GB/s), and higher raw FP32 throughput (27.77 TFLOPS vs 24.72 TFLOPS). Its 2D performance is also 10% better. The A5000 is a retired workstation card, but its memory capacity and compute strength make it relevant for datasets that exceed 12 GB or workloads that scale with bandwidth.

The RTX 4080 Mobile is the pick for anyone building or buying a laptop for gaming, game development, or graphics-intensive creative work. The RTX A5000 is the pick for desktop workstation users whose priority is large-memory compute, CUDA processing, or multi-display professional setups, given its four DisplayPort 1.4a outputs and 24 GB frame buffer. The average benchmark scores favor the RTX 4080 Mobile (38135 vs 33622), but the A5000's specific compute wins and memory capacity make it the better tool for the right workload. Neither card dominates the other across all tasks; the choice depends entirely on whether the workload is graphics-bound or compute-bound.