NVIDIA RTX A3000 Mobile vs NVIDIA RTX A4500 Mobile Comparison

NVIDIA’s RTX A4500 Mobile and RTX A3000 Mobile are both Ampere-generation laptop GPUs built on the same GA104 chip, but they are positioned at different performance tiers. The A4500 Mobile leads in every recorded benchmark, yet the gap between the two is not uniform across workloads. This analysis breaks down where each GPU holds an advantage, what the underlying architecture differences are, and what the benchmark data says about their relative standing.

Where Each One Wins

The data is unambiguous: the NVIDIA RTX A4500 Mobile wins both head-to-head benchmarks, giving it a 2–0 record against the RTX A3000 Mobile. In Geekbench OpenCL, the A4500 Mobile scores 105307 versus 79091 for the A3000 Mobile, a 33.1% advantage. In Geekbench Vulkan, the A4500 Mobile scores 76960 against 61189, a 25.8% lead. There are no benchmark categories where the A3000 Mobile comes out ahead.

However, winning every test does not mean the A3000 Mobile has no role. Its average benchmark score of 70140 places it in the 91st percentile of all GPUs, while the A4500 Mobile’s average of 91134 sits in the 93rd percentile. The A3000 Mobile is still a high-end part, just not as high-end as its sibling. The A4500 Mobile’s wins are largest in compute-heavy OpenCL workloads, suggesting it pulls further ahead when raw shader throughput matters most. In Vulkan, which often reflects real-time graphics performance, the lead narrows to 25.8%, indicating the A3000 Mobile is relatively closer in graphics-oriented tasks.

For workloads that stress FP32 compute, texture throughput, or memory bandwidth, the A4500 Mobile is clearly the better choice. For users whose primary concern is graphics rendering rather than compute, the A3000 Mobile’s smaller deficit in Vulkan makes it a more reasonable alternative, though it still loses outright.

Architecture Differences

Both GPUs share the same GA104 chip, built on Samsung’s 8 nm process, with 17,400 million transistors on a 392 mm² die. The transistor density is identical at 44.4M per mm². The key differences lie in how many execution resources are enabled and how fast they run.

The A4500 Mobile has 5888 shading units, 184 texture mapping units, and 96 raster output units. The A3000 Mobile has 4096 shading units, 128 TMUs, and 64 ROPs. That is a 43.8% advantage in shading units and a 50% advantage in TMUs for the A4500 Mobile, while its ROP count is exactly 50% higher. Ray tracing cores follow a similar pattern: the A4500 Mobile has 46 RT cores against 32, and tensor cores number 184 versus 128.

Clock speeds also differ substantially. The A4500 Mobile runs at a base clock of 930 MHz and boosts to 1500 MHz. The A3000 Mobile has a base of 600 MHz and a boost of 1230 MHz. That means the A4500 Mobile benefits from both more cores and higher clocks, compounding its lead in raw throughput. The memory subsystem tells a similar story. The A4500 Mobile has 16 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The A3000 Mobile has 6 GB on a 192-bit bus, with 264.0 GB/s. The A4500 Mobile offers nearly double the bandwidth and more than 2.5 times the memory capacity.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and both use a PCIe 4.0 x16 interface. Power consumption, however, is dramatically different: the A4500 Mobile has a TDP of 140 W, while the A3000 Mobile draws 70 W. The A4500 Mobile uses that extra power to enable its higher clocks and larger core configuration, but it also means the A3000 Mobile is far more power-efficient on paper.

Head-to-Head Benchmarks

The largest single win for the A4500 Mobile comes in Geekbench OpenCL, where it scores 105307 against 79091 for the A3000 Mobile. The 33.1% delta is the biggest gap between the two in any recorded test. This result aligns with the hardware differences: OpenCL workloads often scale with shading unit count, clock speed, and memory bandwidth, all of which favor the A4500 Mobile. The A4500 Mobile’s FP32 throughput of 17.66 TFLOPS versus 10.08 TFLOPS for the A3000 Mobile is a 75% theoretical advantage, and while real-world scaling is never perfect, the benchmark reflects a substantial portion of that gap.

In Geekbench Vulkan, the scores are 76960 for the A4500 Mobile and 61189 for the A3000 Mobile, a 25.8% lead. The smaller delta in Vulkan suggests that graphics-oriented workloads may be more sensitive to other factors, such as driver optimization or memory latency, rather than pure compute throughput. Still, a 25.8% advantage is significant, and the A4500 Mobile remains clearly faster in this test as well.

Looking at the broader benchmark context, the A4500 Mobile’s average score of 91134 puts it slightly below the desktop NVIDIA RTX A4500 (deltaPct of -0.6%) and just 1.4% behind the AMD Radeon Instinct MI60. The A3000 Mobile, with an average of 70140, sits just 0.2% above the NVIDIA Quadro P6000 and 0.4% above the AMD Radeon Pro WX 8200. These comparisons are useful for positioning: the A4500 Mobile competes with desktop-class workstation cards, while the A3000 Mobile is closer to older flagship desktop offerings.

The A4500 Mobile’s 33.1% OpenCL win and 25.8% Vulkan win are consistent across both tests, indicating that its advantage is broad rather than workload-specific. There is no evidence in the data of a scenario where the A3000 Mobile closes the gap or takes a lead.

FAQ

Q: Which GPU is faster in Geekbench OpenCL?

A: The NVIDIA RTX A4500 Mobile scores 105307, which is 33.1% higher than the RTX A3000 Mobile’s 79091 in Geekbench OpenCL.

Q: How much memory does each GPU have?

A: The RTX A4500 Mobile has 16 GB of GDDR6 memory, while the RTX A3000 Mobile has 6 GB of GDDR6 memory.

Q: Do both GPUs support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the difference in memory bandwidth?

A: The RTX A4500 Mobile has 512.0 GB/s of bandwidth, while the RTX A3000 Mobile has 264.0 GB/s.

Q: Which GPU has higher clock speeds?

A: The RTX A4500 Mobile has a base clock of 930 MHz and a boost of 1500 MHz, compared to the RTX A3000 Mobile’s 600 MHz base and 1230 MHz boost.

Q: How does the RTX A3000 Mobile compare to its nearest rival?

A: The RTX A3000 Mobile’s average benchmark score of 70140 is just 0.2% above the NVIDIA Quadro P6000 and 0.4% above the AMD Radeon Pro WX 8200.

Specification Differences

The two GPUs differ in nearly every major specification category. The RTX A4500 Mobile has a base clock of 930 MHz and a boost of 1500 MHz, while the RTX A3000 Mobile runs at 600 MHz base and 1230 MHz boost. Memory clocks also differ: the A4500 Mobile uses 2000 MHz (16 Gbps effective), and the A3000 Mobile uses 1375 MHz (11 Gbps effective).

Memory configuration is a major differentiator. The A4500 Mobile has 16 GB of GDDR6 on a 256-bit bus, while the A3000 Mobile has 6 GB on a 192-bit bus. This yields a 512.0 GB/s versus 264.0 GB/s bandwidth split.

The compute resource counts are substantially higher on the A4500 Mobile: 5888 shading units versus 4096, 184 TMUs versus 128, 96 ROPs versus 64, 46 RT cores versus 32, and 184 tensor cores versus 128. Pixel rate is 144.0 GPixel/s for the A4500 Mobile and 78.72 GPixel/s for the A3000 Mobile. Texture rate is 276.0 GTexel/s versus 157.4 GTexel/s. FP32 and FP16 performance are both 17.66 TFLOPS for the A4500 Mobile, compared to 10.08 TFLOPS for the A3000 Mobile.

Power consumption is another key difference: the A4500 Mobile has a TDP of 140 W, while the A3000 Mobile is rated at 70 W. Both use the same GA104 chip, 8 nm process, 17,400 million transistors, and 392 mm² die size. Both have the same PCIe 4.0 x16 interface and are marked as end-of-life products. The A4500 Mobile was released on 2022-03-21, while the A3000 Mobile came earlier on 2021-04-11.

The Verdict

The data points to a clear hierarchy. The RTX A4500 Mobile is the faster GPU in every measured dimension, with a 33.1% lead in OpenCL and a 25.8% lead in Vulkan. It has more shading units, more TMUs, more ROPs, more RT cores, more tensor cores, higher clocks, double the memory bandwidth, and more than double the memory capacity. For users who need maximum compute throughput, texture processing, or memory capacity in a mobile workstation, the A4500 Mobile is the obvious choice from this data.

The RTX A3000 Mobile, however, is not without merit. Its 70 W TDP is exactly half of the A4500 Mobile’s 140 W, making it a far more power-efficient option for laptops where thermal and battery constraints are tight. Its average benchmark score of 70140 is still in the 91st percentile of all GPUs, and it trades closely with desktop cards like the Quadro P6000 (0.2% ahead) and the Radeon Pro WX 8200 (0.4% ahead). For users who do not need the A4500 Mobile’s extreme compute capability, the A3000 Mobile offers a respectable level of performance at a much lower power envelope.

The verdict from the data is straightforward: the A4500 Mobile is for those who prioritize raw performance and are willing to accept a 140 W power draw. The A3000 Mobile is for those who need a lighter, cooler, and more power-efficient package while still getting 91st-percentile performance. Neither GPU is a bad choice, but they serve different priorities, and the benchmark results make that split very clear.