NVIDIA GeForce RTX 4090 D vs NVIDIA RTX A3000 Mobile Comparison

Head-to-Head Benchmarks

The recorded benchmark data shows a decisive performance gap between the NVIDIA GeForce RTX 4090 D and the NVIDIA RTX A3000 Mobile. In every shared test, the desktop-class RTX 4090 D delivers a commanding victory, with margins that separate these two GPUs by multiple tiers of performance. The GeForce 40-series part wins both recorded head-to-head comparisons, while the Ampere-based mobile part fails to secure a single win.

In Geekbench OpenCL, the RTX 4090 D scores 278,621 points against 79,091 for the RTX A3000 Mobile. This translates to a 252.3% advantage for the desktop card. The OpenCL test is compute-heavy and scales directly with shading units, memory bandwidth, and clock speed, all areas where the RTX 4090 D holds overwhelming advantages. The RTX A3000 Mobile trails by a factor of roughly 3.5x in raw compute throughput, which aligns with its mobile power envelope and smaller silicon.

The Geekbench Vulkan result is even more lopsided. Here, the RTX 4090 D records 246,941 points while the RTX A3000 Mobile manages 61,189, a 303.6% delta. Vulkan workloads tend to stress geometry throughput, rasterization, and driver overhead, and the Ada Lovelace architecture with its higher TMU and ROP counts simply outruns the older Ampere design. The RTX A3000 Mobile's 78.72 GPixel/s pixel rate and 157.4 GTexel/s texture rate are dwarfed by the RTX 4090 D's 443.5 GPixel/s and 1,149.1 GTexel/s, explaining the massive gap.

Looking at average benchmark scores across the full database, the RTX 4090 D sits at 178,050, placing it in the 98th percentile of all GPUs. The RTX A3000 Mobile averages 70,140, which is the 91st percentile. While both parts rank high, the absolute difference is vast: the RTX 4090 D's average score is roughly 2.5 times higher. The RTX A3000 Mobile's nearest rivals include the NVIDIA Quadro P6000 (0.2% ahead), AMD Radeon Pro WX 8200 (0.4% ahead), and NVIDIA CMP 90HX (1.7% behind), placing it in workstation-class territory from previous generations. The RTX 4090 D, by contrast, competes against the NVIDIA RTX PRO 5000 Blackwell (2.2% behind), A100 SXM4 80 GB (3.1% behind), and RTX 5000 Ada Generation (3.6% behind), showing it slots into the upper echelon of currently tracked accelerators.

Architecture Differences

The architectural divide between these two GPUs is generational and fundamental. The RTX 4090 D uses the AD102 chip built on Ada Lovelace architecture, fabricated by TSMC on a 5 nm process. The RTX A3000 Mobile uses the GA104 chip on Ampere architecture, produced by Samsung on an 8 nm process. The process node difference alone accounts for significant efficiency and density gaps, with the RTX 4090 D packing 76,300 million transistors into a 609 mm² die for a density of 125.3 million transistors per square millimeter. The RTX A3000 Mobile contains 17,400 million transistors on a 392 mm² die, yielding just 44.4 million per square millimeter.

Core configuration differences are equally stark. The RTX 4090 D carries 14,592 shading units, 456 texture mapping units, 176 raster operation units, 114 ray tracing cores, and 456 tensor cores. The RTX A3000 Mobile has 4,096 shading units, 128 TMUs, 64 ROPs, 32 RT cores, and 128 tensor cores. This is roughly a 3.5x advantage in shading units and tensor cores, a 3.5x advantage in TMUs, and a 2.75x advantage in ROPs for the desktop part. The RT core count difference is 3.5x as well, which has direct implications for ray-traced workloads.

Memory architecture reflects the performance positioning. The RTX 4090 D uses 24 GB of GDDR6X on a 384-bit bus, delivering 1.01 TB/s of bandwidth. The RTX A3000 Mobile uses 6 GB of GDDR6 on a 192-bit bus, delivering 264.0 GB/s. The desktop card offers four times the memory capacity and nearly four times the bandwidth. Clock speeds compound the difference: the RTX 4090 D runs at a 2280 MHz base and 2520 MHz boost, while the RTX A3000 Mobile runs at 600 MHz base and 1230 MHz boost. The RTX 4090 D's boost clock is more than double the mobile part's boost clock, and its base clock is nearly four times higher.

Power delivery separates the two designs completely. The RTX 4090 D is a triple-slot card with a 425 W TDP and a single 16-pin power connector, requiring an 800 W suggested power supply. The RTX A3000 Mobile has a 70 W TDP, no power connectors (relying on the laptop's power delivery system), and no suggested PSU rating. This 355 W difference in TDP explains much of the performance gap: the desktop part is allowed to draw over six times the power of the mobile part.

Where Each One Wins

The RTX 4090 D wins in every measured category. It is the clear choice for compute-heavy tasks, high-resolution rendering, and any workload that can scale with massive parallel throughput. Its 73.54 TFLOPS of FP32 performance and equal 73.54 TFLOPS of FP16 (at 1:1 ratio) make it suitable for scientific simulation, AI inference, and content creation. The 1.01 TB/s memory bandwidth allows it to feed its 14,592 shading units without bottlenecking, which is essential for large dataset manipulation and texture-heavy scenes.

The RTX A3000 Mobile wins in portability and power efficiency, though these are not directly measured in the benchmark scores. Its 70 W TDP and lack of external power connectors make it suitable for mobile workstations where battery life and thermals matter. The 6 GB GDDR6 memory is sufficient for moderate workloads, and its 10.08 TFLOPS FP32 performance is respectable for a mobile part. The 91st percentile ranking shows it outperforms the majority of GPUs in the database, despite being far behind the RTX 4090 D. Its nearest rival, the NVIDIA Quadro P6000, is a desktop workstation card from an older generation, and the A3000 Mobile edges it out by 0.2%, showing that Ampere mobile silicon still holds its own against previous flagship workstation parts.

For users who need a GPU that fits in a laptop chassis, the RTX A3000 Mobile is the only option of the two. The RTX 4090 D is a 304 mm long, 137 mm tall, 61 mm wide triple-slot card, which physically cannot fit in portable systems. The RTX A3000 Mobile has no listed dimensions because it is designed to be soldered or integrated into mobile platforms.

FAQ

Q: How much faster is the RTX 4090 D in OpenCL performance?

A: The RTX 4090 D scores 278,621 in Geekbench OpenCL, which is 252.3% higher than the RTX A3000 Mobile's 79,091.

Q: Which GPU has better Vulkan performance?

A: The RTX 4090 D records 246,941 in Geekbench Vulkan versus 61,189 for the RTX A3000 Mobile, a 303.6% advantage.

Q: What are the memory specifications of each card?

A: The RTX 4090 D has 24 GB of GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth. The RTX A3000 Mobile has 6 GB of GDDR6 on a 192-bit bus with 264.0 GB/s bandwidth.

Q: How do the power requirements compare?

A: The RTX 4090 D has a 425 W TDP and requires an 800 W power supply. The RTX A3000 Mobile has a 70 W TDP and uses no external power connectors.

Q: What architectures do these GPUs use?

A: The RTX 4090 D uses Ada Lovelace architecture on TSMC's 5 nm process. The RTX A3000 Mobile uses Ampere architecture on Samsung's 8 nm process.

Q: What is the average benchmark score difference?

A: The RTX 4090 D averages 178,050 across all recorded benchmarks, while the RTX A3000 Mobile averages 70,140. The RTX 4090 D sits in the 98th percentile of all GPUs, while the RTX A3000 Mobile sits in the 91st.

The Verdict

The data supports a straightforward conclusion: these GPUs serve completely different markets and performance tiers. The RTX 4090 D is a flagship desktop accelerator with the 98th percentile ranking, 24 GB of GDDR6X memory, and over 73 TFLOPS of FP32 compute. It is designed for users who need maximum throughput and have the power budget and physical space to accommodate a 425 W triple-slot card. Its nearest rivals in the database are the RTX PRO 5000 Blackwell and A100 SXM4 80 GB, both enterprise-grade accelerators, which places it firmly in high-end workstation and server territory.

The RTX A3000 Mobile is a mobile workstation GPU that delivers respectable performance within a 70 W envelope. Its 91st percentile ranking is impressive for a laptop component, and its 10.08 TFLOPS FP32 performance is adequate for professional workloads that must run on portable systems. However, its 6 GB memory capacity and 264.0 GB/s bandwidth limit its usefulness for large datasets or high-resolution texture work.

For desktop users with unrestricted power budgets, the RTX 4090 D is the clear choice based on every recorded metric. For mobile professionals who require GPU acceleration in a laptop, the RTX A3000 Mobile is the only viable option between the two, despite its significant performance deficit. The 303.6% Vulkan gap and 252.3% OpenCL gap show that the RTX 4090 D is in a different performance class entirely, but the RTX A3000 Mobile's power efficiency and portability are attributes that no desktop card can match.

Specification Differences

The two GPUs differ in nearly every specification field. The RTX 4090 D uses the AD102 chip on Ada Lovelace architecture with a 5 nm TSMC process, while the RTX A3000 Mobile uses the GA104 chip on Ampere architecture with an 8 nm Samsung process. The RTX 4090 D packs 76,300 million transistors on a 609 mm² die, versus 17,400 million on 392 mm² for the mobile part. Transistor density is 125.3M per mm² versus 44.4M per mm².

Clock speeds differ substantially: the RTX 4090 D runs at 2280 MHz base and 2520 MHz boost, while the RTX A3000 Mobile runs at 600 MHz base and 1230 MHz boost. Memory configurations are 24 GB GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth versus 6 GB GDDR6 on a 192-bit bus with 264.0 GB/s bandwidth. The desktop card has 14,592 shading units, 456 TMUs, 176 ROPs, 114 RT cores, and 456 tensor cores. The mobile card has 4,096 shading units, 128 TMUs, 64 ROPs, 32 RT cores, and 128 tensor cores.

Pixel rate is 443.5 GPixel/s versus 78.72 GPixel/s, and texture rate is 1,149.1 GTexel/s versus 157.4 GTexel/s. FP32 and FP16 performance are 73.54 TFLOPS versus 10.08 TFLOPS, both at 1:1 ratio. The RTX 4090 D has a 425 W TDP, triple-slot width, one 16-pin power connector, and an 800 W suggested PSU. The RTX A3000 Mobile has a 70 W TDP, no listed slot width, no power connectors, and no suggested PSU. The desktop card measures 304 mm in length, 137 mm in height, and 61 mm in width, while the mobile part has no listed dimensions. Display outputs are 1x HDMI 2.1 and 3x DisplayPort 1.4a for the RTX 4090 D, while the RTX A3000 Mobile is described as portable device dependent. Both support PCIe 4.0 x16, DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 4090 D was released in late 2023 with a launch MSRP of 1,599 USD, while the RTX A3000 Mobile was released in early 2021 with no listed launch MSRP.