Intel Arc A750 vs NVIDIA RTX A4000 Mobile Comparison

The NVIDIA RTX A4000 Mobile and Intel Arc A750 are two very different GPUs that nonetheless land in the same performance tier. The data shows a split decision: the RTX A4000 Mobile wins 4 of 9 head-to-head benchmarks, while the Arc A750 wins 5. The average benchmark score for the NVIDIA is 21,379, slightly ahead of Intel’s 20,582, and both cards sit at the 66th percentile of all GPUs. The benchmark results indicate that the choice between these two hinges not on overall performance, but on specific workloads and API preferences.

Head-to-Head Benchmarks

The most significant victory for the NVIDIA RTX A4000 Mobile comes in the Passmark DirectX 11 test, where it scores 127 against Intel’s 72, a 76.4% advantage. This is a dominant margin in a legacy API that remains relevant for many older titles and professional applications. Similarly, in Passmark DirectX 10, the NVIDIA card delivers 105 points versus 65 for Intel, a 61.5% lead. These results suggest that for DirectX 10 and 11 workloads, the RTX A4000 Mobile is clearly superior.

The NVIDIA card also wins the two higher-level Passmark tests. In Passmark G3D, it scores 14,796 compared to Intel’s 12,534, an 18% advantage. In Passmark GPU Compute, the margin is 19.1%, with NVIDIA at 6,394 and Intel at 5,368. These wins indicate that the RTX A4000 Mobile holds a solid edge in general 3D rendering and compute tasks that leverage the Passmark suite.

Intel’s wins are concentrated in modern APIs and specific workloads. The largest margin is in Geekbench Vulkan, where the Arc A750 scores 85,631 against NVIDIA’s 73,002, a 14.7% lead. This is a substantial victory in a cross-platform, low-level API that is increasingly important in newer games. In Geekbench OpenCL, Intel narrowly edges out NVIDIA with a score of 98,554 versus 97,178, a 1.4% margin. While small, this win in a general-purpose compute benchmark is noteworthy.

The Passmark DirectX 9 test also goes to Intel, with 181 points versus 157 for NVIDIA, a 13.3% lead. This is an interesting result, as it suggests Intel’s architecture handles this older API more efficiently. The Passmark G2D test, which measures 2D graphics performance, is won by Intel with 732 points against 585, a 20.1% advantage. Finally, in Passmark DirectX 12, Intel scores 70 versus NVIDIA’s 66, a 5.7% win.

The data shows a clear pattern: NVIDIA dominates in older DirectX APIs and general 3D rasterization, while Intel wins in Vulkan, OpenCL, and 2D performance. The DirectX 12 result is close, with Intel holding only a slight edge. For users focused on legacy compatibility or specific compute workloads, the RTX A4000 Mobile is the stronger choice. For those prioritizing modern API performance, the Arc A750 has the advantage.

Architecture Differences

The architectural split between these two GPUs is fundamental. NVIDIA’s RTX A4000 Mobile uses the GA104 chip based on the Ampere architecture, manufactured on an 8 nm process at Samsung. The die size is 392 mm², housing 17,400 million transistors, which yields a transistor density of 44.4M per mm². Intel’s Arc A750 uses the DG2-512 chip with the Xe-HPG architecture, built on a 6 nm process at TSMC. Its die is slightly larger at 406 mm², but packs 21,700 million transistors, giving it a higher density of 53.4M per mm².

The compute configurations differ significantly. The RTX A4000 Mobile has 5,120 shading units, 160 TMUs, and 80 ROPs. It also includes 40 RT cores and 160 tensor cores. The Arc A750 has fewer shading units at 3,584, but more TMUs at 224 and more ROPs at 112. It has 28 RT cores and no tensor cores listed. Despite the lower shader count, Intel’s higher TMU and ROP counts help it achieve the same FP32 throughput of 17.20 TFLOPS as the NVIDIA card. However, in FP16, Intel’s card is far ahead with 34.41 TFLOPS, while NVIDIA is limited to 17.20 TFLOPS with a 1:1 ratio. Intel’s FP16 performance is delivered at a 2:1 ratio, indicating a different approach to mixed-precision workloads.

Memory configurations are similar in size but differ in bandwidth. Both cards feature 8 GB of GDDR6 on a 256-bit bus. The RTX A4000 Mobile runs its memory at 1500 MHz with 12 Gbps effective, yielding 384.0 GB/s of bandwidth. The Arc A750 runs at 2000 MHz with 16 Gbps effective, delivering 512.0 GB/s. This 33% bandwidth advantage for Intel could explain its strong performance in memory-intensive scenarios. Pixel rates are identical at 134.4 GPixel/s, but Intel’s texture rate is double NVIDIA’s: 537.6 GTexel/s versus 268.8 GTexel/s.

Clock speeds also differ. The RTX A4000 Mobile has a base clock of 1140 MHz and a boost of 1680 MHz. The Arc A750 runs much higher, with a base of 2050 MHz and a boost of 2400 MHz. The power envelopes reflect this: the NVIDIA card has a TDP of 115 W and no power connectors, while the Intel card draws 225 W and requires a 6-pin and 8-pin connector, with a suggested PSU of 550 W. The Arc A750 is a dual-slot card, whereas the RTX A4000 Mobile’s form factor is portable device dependent. Both support PCIe 4.0 x16, DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. Display outputs differ: Intel offers 1x HDMI 2.1 and 3x DisplayPort 2.0, while NVIDIA’s outputs are portable device dependent.

The Verdict

The data suggests a clear division of use cases. The NVIDIA RTX A4000 Mobile is the better choice for legacy DirectX workloads and general 3D performance. Its wins in DirectX 10 and 11 are decisive, with margins of 61.5% and 76.4% respectively. The 18% lead in Passmark G3D and 19.1% lead in compute further solidify its position for traditional rasterization and compute tasks. Its lower TDP of 115 W makes it suitable for mobile implementations where power is a constraint.

The Intel Arc A750 is the better option for modern API performance and bandwidth-sensitive applications. Its 14.7% win in Geekbench Vulkan and 20.1% advantage in Passmark G2D are significant. The higher memory bandwidth of 512.0 GB/s and double the FP16 throughput of 34.41 TFLOPS suggest it is better prepared for emerging workloads. However, its 225 W TDP and dual-slot design require a more substantial power supply and chassis.

For a professional environment relying on established DirectX 11 applications, the RTX A4000 Mobile is the data-backed winner. For a gaming or content creation scenario leveraging Vulkan or modern APIs, the Arc A750 holds the advantage. The average benchmark scores are close, with NVIDIA at 21,379 and Intel at 20,582, but the distribution of wins is what matters most. Users should align their choice with the specific API and workload profile they expect to encounter.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The NVIDIA RTX A4000 Mobile has an average benchmark score of 21,379, while the Intel Arc A750 scores 20,582.

Q: How do the two cards compare in DirectX 11 performance?

A: The RTX A4000 Mobile scores 127 in Passmark DirectX 11, which is 76.4% higher than the Arc A750’s score of 72.

Q: What is the biggest performance margin in the head-to-head benchmarks?

A: The largest margin is in Passmark DirectX 11, where the NVIDIA RTX A4000 Mobile leads by 76.4%.

Q: Which GPU has higher memory bandwidth?

A: The Intel Arc A750 has a memory bandwidth of 512.0 GB/s, while the NVIDIA RTX A4000 Mobile has 384.0 GB/s.

Q: How many RT cores does each GPU have?

A: The NVIDIA RTX A4000 Mobile has 40 RT cores, while the Intel Arc A750 has 28 RT cores.

Q: What is the difference in FP16 performance?

A: The Intel Arc A750 delivers 34.41 TFLOPS of FP16 performance, while the NVIDIA RTX A4000 Mobile delivers 17.20 TFLOPS.

Where Each One Wins

NVIDIA RTX A4000 Mobile Wins:

• Legacy DirectX Applications: The 76.4% lead in DirectX 11 and 61.5% lead in DirectX 10 make this card the clear choice for older software and games that rely on these APIs.
• General 3D Rasterization: With an 18% advantage in Passmark G3D, the NVIDIA card is better suited for standard 3D rendering workloads.
• Compute Tasks in Passmark: The 19.1% win in Passmark GPU Compute indicates an edge in certain compute benchmarks.
• Power-Constrained Environments: The 115 W TDP and lack of power connectors make the RTX A4000 Mobile more adaptable to mobile and compact systems.

Intel Arc A750 Wins:

• Modern API Performance: The 14.7% lead in Geekbench Vulkan is the most significant advantage, pointing to superior performance in Vulkan-based games and applications.
• General Compute with OpenCL: The 1.4% win in Geekbench OpenCL, while narrow, shows a slight edge in this widely used compute API.
• 2D Graphics: The 20.1% advantage in Passmark G2D makes the Arc A750 the better choice for 2D workloads and desktop rendering.
• Memory-Intensive Tasks: The 512.0 GB/s bandwidth is 33% higher than NVIDIA’s, providing an advantage in scenarios that are bandwidth-bound.
• DirectX 9 and 12: The Arc A750 wins in both DirectX 9 (13.3% lead) and DirectX 12 (5.7% lead), covering both ends of the DirectX spectrum.