AMD Radeon 780M vs Intel Arc G3 Extreme Comparison

AMD Radeon 780M and Intel Arc G3 Extreme are both integrated graphics processors, but they are built for entirely different platforms and performance targets. The 780M is a 4 nm Phoenix chip with a 15 W TDP, while the Arc G3 Extreme is a 3 nm Panther Lake part rated at 80 W. The database contains recorded benchmark scores for the AMD part, while the Intel part currently has no benchmark entries, which constrains the analysis to architectural comparisons and the measured performance of the 780M against its nearest rivals.

Where Each One Wins

The AMD Radeon 780M has a clear advantage in measured performance because it is the only one of the two with recorded benchmark results. Its average benchmark score is 17,588, placing it at the 61st percentile of all GPUs in the database. The 780M delivers 8.909 TFLOPS of FP32 compute and 8.909 TFLOPS of FP16 compute at a 1:1 ratio, which indicates balanced throughput for both single-precision and half-precision workloads. Its pixel rate is 92.80 GPixel/s and its texture rate is 139.2 GTexel/s, both derived from its 768 shading units, 48 texture mapping units, and 32 raster operation units. The 780M also includes 12 ray tracing cores, supporting DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

In the 3DMark Steel Nomad DX12 test, the 780M scored 480. In Geekbench OpenCL, it scored 18,602, and in Geekbench Vulkan, it scored 33,683. These scores show that the 780M performs substantially better in Vulkan than in OpenCL, with the Vulkan result being about 81% higher than the OpenCL result. The Steel Nomad score is much lower than both Geekbench results, which reflects the more demanding nature of that workload. The 780M's nearest rivals in the database are the AMD Radeon Pro 560 with an average score of 17,551, the NVIDIA GeForce RTX 4060 with 17,639, the AMD Radeon HD 7790 with 17,666, and the AMD Radeon Pro 460 with 17,509. The 780M is 0.2% ahead of the Radeon Pro 560, 0.5% ahead of the Radeon Pro 460, and 0.3% behind the RTX 4060 and 0.4% behind the HD 7790. These deltas are within measurement noise, so the 780M sits in a tight cluster with those four GPUs.

The Intel Arc G3 Extreme, by contrast, has no recorded benchmarks and an average benchmark score of 0. It sits at the 50th percentile of all GPUs, which is a placeholder value given the absence of data. Its architectural specifications indicate higher raw compute in some areas: 1,536 shading units, which is double the 780M's 768, and 48 texture mapping units, matching the 780M. However, its raster operation units number 24, fewer than the 780M's 32. The Arc G3 Extreme delivers 7.680 TFLOPS of FP32 and 15.36 TFLOPS of FP16 at a 2:1 ratio, meaning its half-precision throughput is double its single-precision throughput. Its pixel rate is 60.00 GPixel/s and its texture rate is 120.0 GTexel/s, both lower than the 780M's corresponding rates. The Arc G3 Extreme also has 12 ray tracing cores and supports the same API set: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The use-case split is therefore straightforward. The 780M wins where measured performance matters, because it has actual scores and a verified position relative to other GPUs. The Arc G3 Extreme wins only in theoretical FP16 throughput and in shading unit count, but without benchmark data, those specifications cannot be translated into real-world wins. For applications that rely on FP16 compute, such as certain AI inference or media processing tasks, the Arc G3 Extreme's 2:1 FP16 ratio gives it a nominal advantage, but this remains unverified in the database.

The Verdict

Based strictly on recorded data, the AMD Radeon 780M is the only GPU in this comparison with measurable performance. Its average benchmark score of 17,588 and 61st percentile ranking place it ahead of the Intel Arc G3 Extreme, which has no scores and a 50th percentile placeholder. The 780M also has a lower TDP of 15 W compared to 80 W for the Arc G3 Extreme, which indicates it delivers its performance at a fraction of the power draw. The Arc G3 Extreme's higher shading unit count (1,536 vs. 768) and higher FP16 throughput (15.36 TFLOPS vs. 8.909 TFLOPS) suggest it may have untapped potential, but the database contains no evidence of that potential manifesting in benchmark results.

For users who need verified performance, the 780M is the choice. Its scores in Geekbench Vulkan (33,683) and OpenCL (18,602) demonstrate real capability across different compute APIs. Its nearest rivals include discrete GPUs like the NVIDIA GeForce RTX 4060, and the 780M trails that card by only 0.3% in average score, which is a strong result for an integrated processor. The Arc G3 Extreme, being an IGP with a 80 W TDP, may be intended for portable devices, as its display outputs are listed as "Portable Device Dependent." However, without benchmarks, its performance class cannot be established.

The 780M also has a higher pixel rate (92.80 GPixel/s vs. 60.00 GPixel/s) and texture rate (139.2 GTexel/s vs. 120.0 GTexel/s), which directly impacts rasterization and texture-heavy workloads. Its FP32 throughput is higher as well (8.909 TFLOPS vs. 7.680 TFLOPS), giving it an edge in general-purpose compute. The Arc G3 Extreme's only clear specification win is FP16 throughput and shading unit count, but those do not translate into benchmark victories without data. The verdict is that the 780M is the proven performer, while the Arc G3 Extreme remains an unmeasured entity.

Head-to-Head Benchmarks

There are no head-to-head benchmark entries in the database for these two GPUs. The AMD Radeon 780M has three recorded benchmarks: 3DMark Steel Nomad DX12 at 480, Geekbench OpenCL at 18,602, and Geekbench Vulkan at 33,683. The Intel Arc G3 Extreme has zero recorded benchmarks. This absence of data means no direct comparison of scores is possible. Instead, the analysis relies on the 780M's performance relative to its nearest rivals and the architectural specifications of both parts.

The 780M's biggest measured win is in Geekbench Vulkan, where its score of 33,683 is 81% higher than its own OpenCL score of 18,602. This indicates that the 780M's drivers and hardware are particularly well-suited to Vulkan workloads. In comparison to its nearest rivals, the 780M's average score of 17,588 is 0.2% above the Radeon Pro 560 (17,551) and 0.5% above the Radeon Pro 460 (17,509). It is 0.3% below the RTX 4060 (17,639) and 0.4% below the HD 7790 (17,666). These margins are small, suggesting the 780M performs similarly to those four GPUs in aggregate.

For the Arc G3 Extreme, the only comparable data points are its peak theoretical rates. Its FP32 throughput of 7.680 TFLOPS is 13.8% lower than the 780M's 8.909 TFLOPS. Its FP16 throughput of 15.36 TFLOPS is 72.4% higher than the 780M's 8.909 TFLOPS, but this advantage is specific to half-precision workloads. Its pixel rate of 60.00 GPixel/s is 35.3% lower than the 780M's 92.80 GPixel/s, and its texture rate of 120.0 GTexel/s is 13.8% lower than the 780M's 139.2 GTexel/s. In every measurable throughput category except FP16 and shading unit count, the 780M leads. The 780M also has 32 ROPs versus 24 for the Arc G3 Extreme, which affects fill-rate-bound scenarios.

The 780M's base clock is 800 MHz with a boost of 2900 MHz, while the Arc G3 Extreme has a base of 300 MHz and a boost of 2500 MHz. The 780M's higher boost clock contributes to its higher pixel and texture rates despite having fewer shading units. The Arc G3 Extreme's lower boost clock, combined with fewer ROPs, explains its lower pixel rate. Both GPUs share system memory, with bandwidth listed as "System Dependent," so memory performance is not a differentiator in the specifications.

FAQ

Q: What is the average benchmark score of the AMD Radeon 780M?

A: The AMD Radeon 780M has an average benchmark score of 17,588, placing it at the 61st percentile of all GPUs in the database.

Q: Does the Intel Arc G3 Extreme have any recorded benchmark scores?

A: No, the Intel Arc G3 Extreme has no recorded benchmarks and an average benchmark score of 0, with a 50th percentile placeholder.

Q: How does the 780M compare to the NVIDIA GeForce RTX 4060?

A: The 780M has an average score of 17,588, which is 0.3% lower than the RTX 4060's average score of 17,639.

Q: What are the FP32 and FP16 throughput figures for both GPUs?

A: The 780M delivers 8.909 TFLOPS FP32 and 8.909 TFLOPS FP16 at a 1:1 ratio. The Arc G3 Extreme delivers 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 at a 2:1 ratio.

Q: Which GPU has more shading units?

A: The Intel Arc G3 Extreme has 1,536 shading units, double the 768 shading units of the AMD Radeon 780M.

Q: What is the TDP difference between the two GPUs?

A: The AMD Radeon 780M has a TDP of 15 W, while the Intel Arc G3 Extreme has a TDP of 80 W.

Architecture Differences

The AMD Radeon 780M is built on the Phoenix chip using RDNA 3.0 architecture, manufactured on a 4 nm process at TSMC. It contains 25,390 million transistors on a die size of 178 mm², giving a transistor density of 142.6 million per mm². Its generation is listed as Navi III IGP (Phoenix), with a predecessor of Navi II IGP and a successor of Navi III IGP. The 780M uses a PCIe 4.0 x8 bus interface and has no power connectors, consistent with its IGP form factor. Its display outputs are motherboard dependent.

The Intel Arc G3 Extreme is built on the Panther Lake chip using Xe3-LPG architecture, manufactured on a 3 nm process at Intel. Its transistor count and die size are listed as unknown, and it has no predecessor or successor in the database. Its generation is Arc Graphics-M (Panther Lake). The bus interface is listed as IGP, and display outputs are portable device dependent. Both GPUs share system memory with a system-dependent bandwidth, and both have no dedicated memory bus width or type.

In terms of compute resources, the 780M has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. The Arc G3 Extreme has 1,536 shading units, 48 TMUs, 24 ROPs, and 12 ray tracing cores. The 780M's base clock is 800 MHz and boost clock is 2900 MHz, while the Arc G3 Extreme's base clock is 300 MHz and boost clock is 2500 MHz. The 780M's pixel rate is 92.80 GPixel/s and texture rate is 139.2 GTexel/s, compared to 60.00 GPixel/s and 120.0 GTexel/s for the Arc G3 Extreme.

FP32 compute favors the 780M at 8.909 TFLOPS versus 7.680 TFLOPS. FP16 compute favors the Arc G3 Extreme at 15.36 TFLOPS versus 8.909 TFLOPS, with the Arc offering a 2:1 FP16 ratio compared to the 780M's 1:1 ratio. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The 780M is an active production part with a release date of 2024-01-30, while the Arc G3 Extreme is also active with a release date of 2026-05-31. The 780M has a TDP of 15 W, the Arc G3 Extreme has a TDP of 80 W, and neither has a launch MSRP listed.

The process node difference is notable: 4 nm for the 780M versus 3 nm for the Arc G3 Extreme, with different foundries (TSMC for AMD, Intel for Intel). The 780M's higher transistor count and known die size indicate a mature design, while the Arc G3 Extreme's unknown transistor data limits structural comparison. The 780M's boost clock is 400 MHz higher than the Arc G3 Extreme's, which helps explain its superior pixel and texture rates despite having half the shading units. The Arc G3 Extreme's higher shading unit count and FP16 throughput suggest it is designed for workloads that benefit from parallel half-precision math, but the lack of benchmark data prevents any confirmation of real-world advantage.