AMD Radeon 780M vs Intel Arc A750 Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive advantage for the Intel Arc A750 across every shared benchmark. In the 3DMark Steel Nomad DX12 test, the Arc A750 scores 2612 against the Radeon 780M's 480, a delta of 444.2% in favor of the discrete card. This is not a marginal lead; it is a multi-tier gap that places the two products in entirely different performance classes for modern DirectX 12 workloads.

The compute-oriented results reinforce the same pattern. In Geekbench OpenCL, the Arc A750 records 98554 points while the Radeon 780M manages 18602, a 429.8% advantage. The Vulkan result is comparatively closer but still lopsided: 85631 for the Intel part versus 33683 for the AMD integrated graphics, a 154.2% delta. Across all three head-to-head tests, the Arc A750 wins 3 and the Radeon 780M wins 0. There is no benchmark in the database where the 780M pulls ahead, and the smallest margin of victory for the Arc A750 is still well over double the 780M's score.

Context from the nearest rival data helps frame these numbers. The Arc A750's average benchmark score is 20582, placing it just 0.1% ahead of the Intel Arc B570 (20556) and 0.2% ahead of the NVIDIA GeForce RTX 3070 Mobile (20534). The Radeon 780M's average of 17588 sits 0.3% behind the NVIDIA GeForce RTX 4060 (17639) and 0.2% ahead of the AMD Radeon Pro 560 (17551). So while both products occupy similar percentile territory (66th for the Arc A750, 61st for the 780M), the absolute gap between their average scores is roughly 3000 points, which is substantial when rival deltas are typically measured in fractions of a percent.

FAQ

Q: Which GPU wins in DirectX 12 performance?

A: The Intel Arc A750 wins decisively. In 3DMark Steel Nomad DX12, it scores 2612 versus 480 for the AMD Radeon 780M, a 444.2% advantage.

Q: How do the two compare in OpenCL compute workloads?

A: The Arc A750 records 98554 in Geekbench OpenCL, while the Radeon 780M scores 18602. The Intel part leads by 429.8%, indicating a massive gap in general-purpose compute throughput.

Q: Is the Vulkan gap smaller than the other benchmarks?

A: Yes, Vulkan is the closest test in the head-to-head set, but the Arc A750 still leads by 154.2% (85631 versus 33683). The margin is narrower than in DX12 or OpenCL, but the outcome is unchanged.

Q: What is the average benchmark score for each GPU?

A: The Arc A750 has an average benchmark score of 20582, while the Radeon 780M averages 17588. The Arc A750 also holds a higher percentile rank at 66 versus 61 for the 780M.

Q: How close are these GPUs to their nearest rivals?

A: The Arc A750 is 0.1% ahead of the Intel Arc B570 and 0.2% ahead of the NVIDIA GeForce RTX 3070 Mobile. The Radeon 780M is 0.3% behind the NVIDIA GeForce RTX 4060 and 0.2% ahead of the AMD Radeon Pro 560.

Q: Does the Radeon 780M win any benchmark in the comparison?

A: No. Across all three recorded head-to-head tests, the Arc A750 wins 3 and the Radeon 780M wins 0.

Where Each One Wins

The Intel Arc A750 wins everywhere in the recorded data. It takes the 3DMark Steel Nomad DX12 test by a factor of roughly 5.4, the Geekbench OpenCL test by a factor of roughly 5.3, and the Geekbench Vulkan test by a factor of roughly 2.5. This makes the Arc A750 the clear choice for any workload represented in these benchmarks: DX12 gaming, OpenCL compute, and Vulkan rendering.

The Radeon 780M does not have a single win in the head-to-head set. Its wins are situational rather than performance-based: it consumes 15 W of power versus 225 W for the Arc A750, and it requires no power connectors, no dedicated memory, and no expansion slot. In a use case where the host system is a thin-and-light laptop or a compact mini PC with shared memory, the 780M is the only feasible option. But in pure benchmark terms, the Arc A750 is ahead by margins that range from 154.2% to 444.2%.

For users who prioritize raw frame rates in DX12 titles or compute throughput in OpenCL, the Arc A750 is the only choice supported by the data. For users who prioritize portability, low power draw, and system integration, the 780M's advantages are architectural, not benchmark-driven.

Specification Differences

The two products differ in nearly every measurable hardware specification. The Intel Arc A750 is built on a 6 nm process at TSMC, while the AMD Radeon 780M uses a 4 nm process at the same foundry. The Arc A750 packs 21,700 million transistors on a 406 mm² die, translating to a transistor density of 53.4M per mm². The Radeon 780M integrates 25,390 million transistors on a much smaller 178 mm² die, giving it a density of 142.6M per mm². This means the 780M has more transistors in less than half the silicon area, a reflection of its integrated design.

Clock speeds diverge sharply. The Arc A750 runs at a base of 2050 MHz and boosts to 2400 MHz, with memory clocked at 2000 MHz (16 Gbps effective). The Radeon 780M has a base of 800 MHz and a boost of 2900 MHz, but its memory clock is listed as "System Shared" because it uses system memory rather than dedicated VRAM.

Memory configurations are fundamentally different. The Arc A750 has 8 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The 780M has no dedicated memory: size, type, bus width, and bandwidth are all marked as system dependent. This alone explains much of the benchmark gap, as dedicated bandwidth versus shared system memory is a structural difference, not a tuning difference.

The compute unit counts tell the rest of the story. The Arc A750 has 3584 shading units, 224 texture mapping units, 112 raster output units, and 28 ray tracing cores. The Radeon 780M has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. Pixel rate for the Arc A750 is 268.8 GPixel/s versus 92.80 GPixel/s for the 780M. Texture rate is 537.6 GTexel/s versus 139.2 GTexel/s. FP32 throughput is 17.20 TFLOPS versus 8.909 TFLOPS, and FP16 is 34.41 TFLOPS (2:1) versus 8.909 TFLOPS (1:1). The Arc A750 is ahead in every throughput metric, often by a factor of two or more.

Power and physical requirements are also polar opposites. The Arc A750 has a TDP of 225 W, requires a dual-slot cooler, and needs a 1x 6-pin plus 1x 8-pin power connector with a suggested PSU of 550 W. The Radeon 780M has a TDP of 15 W, is an IGP (integrated graphics processor), uses no power connectors, and has no suggested PSU. The Arc A750 connects via PCIe 4.0 x16, while the 780M uses PCIe 4.0 x8. Display outputs are 1x HDMI 2.1 and 3x DisplayPort 2.0 for the Arc A750, versus "Motherboard Dependent" for the 780M.

Architecture Differences

The Intel Arc A750 is based on the DG2-512 chip using the Xe-HPG architecture, belonging to the Alchemist generation (Arc 7). The AMD Radeon 780M uses the Phoenix chip with RDNA 3.0 architecture, part of the Navi III IGP (Phoenix) generation. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature parity is identical.

The Arc A750 is a discrete GPU with a dedicated memory bus and its own power delivery. The Radeon 780M is an integrated GPU sharing system memory and system power. This architectural split explains the specification differences: the 780M's 15 W TDP is typical for an IGP, while the Arc A750's 225 W TDP is typical for a performance discrete card.

Production status differs as well. The Arc A750 is end-of-life, with a release date of 2022-10-11 and a listed successor of Battlemage. The Radeon 780M is active, released on 2024-01-30, with a predecessor of Navi II IGP and a successor of Navi III IGP. The Arc A750 also carries an 8 GB GDDR6 memory pool, while the 780M has no dedicated VRAM at all, relying entirely on the host system's memory.

The Verdict

The data is unambiguous: the Intel Arc A750 outperforms the AMD Radeon 780M in every recorded benchmark. The smallest lead is 154.2% in Geekbench Vulkan, and the largest is 444.2% in 3DMark Steel Nomad DX12. The Arc A750 also holds a higher average benchmark score (20582 versus 17588) and a higher percentile rank (66 versus 61).

The Radeon 780M is not a competitor in the same performance class. It wins no head-to-head tests and trails by hundreds of percent in compute and gaming workloads. Its strengths are entirely outside the benchmark suite: a 15 W TDP, no power connectors, no dedicated memory requirement, and integrated form factor. These attributes make it suitable for systems where a discrete GPU is physically or electrically impossible.

The Arc A750 should be selected by anyone building a desktop system that can accommodate a dual-slot, 225 W card with a 550 W PSU. It offers dedicated GDDR6 memory with 512.0 GB/s of bandwidth, 17.20 TFLOPS of FP32 compute, and 28 ray tracing cores. The Radeon 780M should be selected only for integrated systems where the 15 W power envelope and shared memory are mandatory constraints. For any workload measured in this database, the Arc A750 is the superior choice, and the margin is not close.