NVIDIA GB10 vs NVIDIA RTX A3000 Mobile Comparison

Head-to-Head Benchmarks

The benchmark database records two compute workloads for this comparison: Geekbench OpenCL and Geekbench Vulkan. In both, the NVIDIA GB10 takes a commanding lead over the NVIDIA RTX A3000 Mobile.

In Geekbench OpenCL, the GB10 scores 120,137 against 79,091 for the A3000 Mobile. That is a 51.9% advantage for the GB10. In Geekbench Vulkan, the gap widens considerably: the GB10 posts 114,648 while the A3000 Mobile manages 61,189, a 87.4% delta. The Vulkan result is particularly striking, as it shows the GB10 nearly doubling the mobile part's output in that API.

The average benchmark score across the two tests tells a similar story. The GB10 averages 117,393, placing it at the 95th percentile of all GPUs in the database. The A3000 Mobile averages 70,140, which puts it at the 91st percentile. While both are high-percentile parts, the absolute difference is substantial: the GB10's average is roughly 67% higher than the A3000 Mobile's.

Context from the nearest rivals section reinforces the GB10's standing. Its closest competitor in the database is the NVIDIA RTX 4000 SFF Ada Generation with an average score of 117,088, a 0.3% gap. The AMD Radeon PRO W7700 sits 1.3% behind the GB10 at 118,976. The GB10 also leads the NVIDIA Tesla V100 SXM2 16 GB by 2.6% and the NVIDIA RTX A5500 Mobile by 3%. The A3000 Mobile, meanwhile, trades blows with much older or lower-tier parts: it is 0.2% ahead of the NVIDIA Quadro P6000, 0.4% ahead of the AMD Radeon Pro WX 8200, 1% behind the AMD Radeon RX 6600 LE, and 1.7% ahead of the NVIDIA CMP 90HX. These deltas show that the A3000 Mobile competes in a different performance tier entirely, despite its respectable percentile ranking.

Architecture Differences

The two GPUs come from different architectural generations and manufacturing processes. The GB10 is built on the Blackwell 2.0 architecture using a chip designated GB20B, fabricated on a 5 nm process at TSMC. The A3000 Mobile uses the Ampere architecture with a GA104 chip, fabricated on an 8 nm process at Samsung. The GB10 belongs to the Server Blackwell (Bxx) generation, while the A3000 Mobile belongs to the Ampere-MW (Ax000) generation.

The die sizes are comparable in physical terms, with the GB10 at 382 mm² and the A3000 Mobile at 392 mm², but the transistor counts differ dramatically. The A3000 Mobile has 17,400 million transistors with a density of 44.4M per mm². The GB10's transistor count is listed as unknown in the database, though its smaller die on a more advanced node suggests a different integration strategy. The GB10's 5 nm process gives it a clear manufacturing advantage in density potential.

Memory configurations diverge sharply. The GB10 carries 128 GB of LPDDR5X memory on a 256-bit bus, delivering 273.2 GB/s of bandwidth. The A3000 Mobile has 6 GB of GDDR6 on a 192-bit bus, with 264.0 GB/s of bandwidth. Despite the vastly different capacities, bandwidth is surprisingly close, with the GB10 ahead by only about 3.5%. The GB10's memory clock is listed at 1067 MHz with 8.5 Gbps effective, while the A3000 Mobile runs at 1375 MHz with 11 Gbps effective.

Compute resources also differ significantly. The GB10 has 6,144 shading units, 384 texture mapping units, and 48 ROPs. The A3000 Mobile has 4,096 shading units, 128 TMUs, and 64 ROPs. The GB10 has 48 RT cores and 384 tensor cores, while the A3000 Mobile has 32 RT cores and 128 tensor cores. The GB10's raw throughput numbers reflect this: 29.71 TFLOPS FP32 and 29.71 TFLOPS FP16 (1:1). The A3000 Mobile delivers 10.08 TFLOPS FP32 and 10.08 TFLOPS FP16 (1:1). The GB10 is nearly three times faster in raw FP32 compute.

Pixel and texture rates follow the same pattern. The GB10 achieves 116.1 GPixel/s and 928.5 GTexel/s, while the A3000 Mobile manages 78.72 GPixel/s and 157.4 GTexel/s. The texture rate gap is especially large, driven by the GB10's 384 TMUs versus 128 on the A3000 Mobile.

Power envelopes differ as well. The GB10 is rated at 140 W TDP with a suggested PSU of 300 W, while the A3000 Mobile is rated at 70 W TDP. The GB10 is an integrated graphics package (IGP) with no power connectors, measuring 150 mm in length and height and 51 mm in height, with a single HDMI output. The A3000 Mobile has no listed dimensions, uses portable-device-dependent display outputs, and supports PCIe 4.0 x16, while the GB10 uses PCIe 5.0 x16.

API support is another differentiator. The A3000 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The GB10 lists all APIs as N/A in the database, likely reflecting its server-oriented positioning rather than a technical absence of API support.

Production status and release timing also differ. The GB10 is listed as Active with a release date of October 14, 2025, following Server Hopper and preceding Server Rubin. The A3000 Mobile is End-of-life, released on April 11, 2021, following Quadro Turing-M and preceding Ada-MW. The GB10 carries a launch MSRP of 3,999 USD.

Where Each One Wins

The GB10 wins both recorded benchmarks outright, so the test-by-test breakdown is decisive. In OpenCL, its 120,137 score tops the A3000 Mobile's 79,091 by a 51.9% margin. In Vulkan, the GB10's 114,648 beats 61,189 by 87.4%. There are no benchmark categories in the database where the A3000 Mobile comes out ahead.

The use-case split therefore comes down to workload characteristics rather than benchmark wins. The GB10, with 128 GB of LPDDR5X memory and 384 tensor cores, is positioned for large-model inference and data-parallel workloads that can exploit its massive memory capacity and high FP16 throughput. Its 29.71 TFLOPS FP16 (1:1) makes it suitable for compute-heavy tasks where mixed-precision arithmetic dominates. The A3000 Mobile, with 6 GB of GDDR6 and 128 tensor cores, is better suited to laptop-class rendering and lighter compute tasks where its 70 W TDP and portable form factor matter more than raw throughput.

The A3000 Mobile's advantage lies in efficiency per watt in a mobile context. Its 70 W TDP is half the GB10's 140 W, and it still delivers 10.08 TFLOPS FP32. For mobile workstations where power and thermal limits are tight, the A3000 Mobile offers a balanced profile. The GB10, by contrast, is an IGP with a 300 W suggested PSU, indicating a desktop or server-class installation where power is less constrained.

The Vulkan delta of 87.4% is worth noting for any workload that relies on Vulkan compute or rendering. The GB10's near-doubling of the A3000 Mobile's Vulkan score suggests a significant architectural advantage in that API, likely tied to its newer Blackwell design and higher shading unit count. The OpenCL gap, while still large, is more moderate, suggesting the A3000 Mobile's Ampere architecture holds up relatively better in OpenCL-heavy environments.

The Verdict

The data is unambiguous: the NVIDIA GB10 outperforms the NVIDIA RTX A3000 Mobile in every recorded benchmark. The GB10 leads by 51.9% in OpenCL and 87.4% in Vulkan, with an average score of 117,393 versus 70,140. Its 95th percentile ranking versus the A3000 Mobile's 91st places them in different performance bands, despite both being high-tier parts.

The GB10 is the clear choice for compute-intensive server or workstation workloads where memory capacity and raw throughput are paramount. Its 128 GB of LPDDR5X, 29.71 TFLOPS FP32, and 384 tensor cores make it suitable for large-scale inference, training-adjacent tasks, or any workload that needs to keep large datasets resident on the GPU. The 3,999 USD launch MSRP reflects its enterprise positioning.

The A3000 Mobile is the pick for mobile workstations where the 70 W TDP and portable form factor are non-negotiable. It delivers 10.08 TFLOPS FP32 and 264.0 GB/s of bandwidth in a package that requires no external power connectors and fits into portable device designs. Its End-of-life status, however, means it is a legacy choice for new designs.

For users deciding between the two, the decision hinges on deployment context rather than performance. In a fixed installation with power available, the GB10 wins on every metric in the database. In a laptop or compact mobile chassis, the A3000 Mobile remains a reasonable, if dated, option. The recorded data shows no scenario where the A3000 Mobile beats the GB10 in raw performance.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GB10 averages 117,393 across the recorded tests, while the NVIDIA RTX A3000 Mobile averages 70,140.

Q: How large is the performance gap in Vulkan?

A: The GB10 scores 114,648 in Geekbench Vulkan versus 61,189 for the A3000 Mobile, a 87.4% difference.

Q: What are the memory capacities of each GPU?

A: The GB10 has 128 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth. The A3000 Mobile has 6 GB of GDDR6 on a 192-bit bus with 264.0 GB/s bandwidth.

Q: How do their power requirements compare?

A: The GB10 is rated at 140 W TDP with a suggested PSU of 300 W. The A3000 Mobile is rated at 70 W TDP with no suggested PSU listed.

Q: Which GPU is newer?

A: The GB10 was released on October 14, 2025, and is listed as Active. The A3000 Mobile was released on April 11, 2021, and is listed as End-of-life.

Q: How do the FP32 compute figures compare?

A: The GB10 delivers 29.71 TFLOPS FP32, while the A3000 Mobile delivers 10.08 TFLOPS FP32. Both have a 1:1 FP16 ratio.

Q: What architectures do these GPUs use?

A: The GB10 uses Blackwell 2.0 on a 5 nm TSMC process. The A3000 Mobile uses Ampere on an 8 nm Samsung process.