AMD Radeon 680M vs Intel Arc G3 Extreme Comparison

Where Each One Wins

The recorded data splits these two integrated graphics processors into distinct usage profiles. The AMD Radeon 680M holds a clear advantage in compute-oriented workloads, as evidenced by its substantial OpenCL and Vulkan benchmark scores. The Intel Arc G3 Extreme, by contrast, presents a different set of capabilities: it operates at a much lower base clock but boosts significantly higher, and it carries double the shading units compared to the AMD part. However, the Intel GPU has no recorded benchmark scores in the database, so its wins are inferred from architectural specifications rather than measured performance.

For tasks that leverage raw shader throughput, the Intel Arc G3 Extreme theoretically holds the edge. Its 1536 shading units versus the AMD's 768, combined with a boost clock of 2500 MHz versus 2200 MHz, yields a peak FP32 rate of 7.680 TFLOPS against the Radeon's 3.379 TFLOPS. This more than doubles the compute ceiling, which suggests an advantage in workloads that scale linearly with shader count, such as certain rendering tasks or compute-heavy applications. The Intel part also delivers a higher texture rate at 120.0 GTexel/s versus 105.6 GTexel/s, indicating better texture fetch throughput despite having the same 48 TMUs.

For memory-bound scenarios, both parts are system dependent, meaning their bandwidth scales with the host platform's memory configuration. Neither has dedicated VRAM, so the split between them on memory performance cannot be quantified from the database. The AMD Radeon 680M, however, posts a pixel rate of 70.40 GPixel/s, which exceeds the Intel part's 60.00 GPixel/s. This gives the AMD GPU a measurable win in fill-rate-limited situations, such as high-resolution rasterization with heavy overdraw.

The AMD part also wins on efficiency per watt in the recorded specifications. Its TDP is 50 W while the Intel GPU is rated at 80 W, and the AMD still manages a higher pixel throughput. The Radeon 680M's average benchmark score of 15270 places it at the 57th percentile among all GPUs, while the Intel Arc G3 Extreme holds the 50th percentile with an average score of 0 due to missing benchmark data. This percentile gap indicates that the AMD part is positioned above the median GPU in the database, whereas the Intel part sits exactly at the median, though this is a provisional placement pending actual benchmark results.

Architecture Differences

The two IGPs come from entirely different manufacturing and design lineages. The AMD Radeon 680M uses the Rembrandt+ chip with an RDNA 2.0 architecture, fabricated on a 6 nm process at TSMC. The Intel Arc G3 Extreme uses the Panther Lake chip with an Xe3-LPG architecture, fabricated on a 3 nm process at Intel's own foundry. The Intel process node is tighter, which typically enables higher transistor density, though the database records the Intel die size and transistor count as unknown. The AMD chip contains 13,100 million transistors on a 208 mm² die, giving a transistor density of 63.0M per mm². The Intel part's density cannot be compared directly because those figures are not recorded.

Clock behavior differs sharply. The AMD Radeon 680M runs at a 2000 MHz base clock and a 2200 MHz boost clock. The Intel Arc G3 Extreme has a 300 MHz base clock but boosts to 2500 MHz. This wide gap between the Intel base and boost suggests aggressive power management, likely ramping up under load and dropping low at idle. The AMD part's narrower clock range indicates a more consistent operating point.

Shader configuration separates the two significantly. The Intel GPU has 1536 shading units, double the AMD's 768. Both share 48 texture mapping units, but the AMD has 32 ROPs versus the Intel's 24. Each has 12 ray tracing cores, so ray tracing hardware counts are identical. The pixel rate reflects the ROP difference: 70.40 GPixel/s for AMD and 60.00 GPixel/s for Intel. The texture rate, however, favors Intel at 120.0 GTexel/s because the higher boost clock compensates for the equal TMU count.

Memory architecture is identical in structure: both use system shared memory with a system shared bus width and system dependent bandwidth. Neither has a dedicated memory bus, so all memory performance depends on the host system's RAM configuration. The bus interface differs: the AMD part uses PCIe 4.0 x8, while the Intel part uses an unspecified IGP interface. This could affect data transfer rates to and from system memory, but the database does not quantify the difference.

API support is the same for both: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has tensor cores listed. The AMD part is designated as the successor to the Vega II IGP and has its own successor in the Navi III IGP. The Intel part has no recorded predecessor or successor. Both are listed as active production parts, with the AMD released on January 2, 2023, and the Intel dated May 31, 2026. Neither has a launch MSRP recorded, so price comparisons are not possible.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between these two GPUs, and the Intel Arc G3 Extreme has zero recorded benchmark scores. The only measurable comparisons come from the AMD Radeon 680M's individual benchmark results. In 3DMark Steel Nomad DX12, the AMD part scores 378. In Geekbench OpenCL, it scores 23468, and in Geekbench Vulkan, it scores 21965. These numbers establish the AMD part's baseline performance across compute and graphics APIs.

The AMD Radeon 680M's average benchmark score is 15270, which places it at the 57th percentile among all GPUs. Its nearest rivals in the database provide context for this figure. The NVIDIA GeForce GTX 580 has an average score of 15283, a delta of -0.1% relative to the AMD part, meaning the two are statistically tied. The NVIDIA GeForce RTX 2060 scores 15290, also -0.1% from the AMD, again a near tie. The NVIDIA GeForce RTX 3050 OEM scores 15199, which is 0.5% below the AMD, so the AMD part is slightly ahead. The AMD Radeon RX 7600 scores 15171, 0.7% lower, making the 680M the top performer among these four rivals.

These deltas are all within a single percentage point, indicating that the Radeon 680M sits in a tight performance cluster with several discrete GPUs from previous generations. The RTX 2060 and GTX 580 are essentially equivalent to the 680M in average score, while the RTX 3050 OEM and RX 7600 trail by a small margin. This places the integrated AMD part in the same performance tier as those older discrete cards, which is notable for an IGP.

The Intel Arc G3 Extreme cannot be placed in this ranking because it lacks benchmark data. Its theoretical FP32 throughput of 7.680 TFLOPS is roughly 2.27 times the AMD's 3.379 TFLOPS, but without measured scores, no direct comparison is possible. The Intel part's 50th percentile versus the AMD's 57th percentile suggests the database currently ranks the AMD higher, but this is based on incomplete data for the Intel part.

The Verdict

The data supports a clear split. The AMD Radeon 680M is the measured performer. It has concrete benchmark scores, a higher percentile ranking at 57 versus 50, and a substantial average score of 15270. Its pixel rate advantage of 70.40 GPixel/s over the Intel's 60.00 GPixel/s gives it a real edge in fill-rate-bound scenarios. For any workload where empirical results matter, the AMD part is the only one with verified numbers.

The Intel Arc G3 Extreme is the theoretical contender. Its 1536 shading units and 2500 MHz boost clock produce 7.680 TFLOPS of FP32 compute, more than double the AMD's 3.379 TFLOPS. The texture rate of 120.0 GTexel/s also exceeds the AMD's 105.6 GTexel/s. These specifications indicate that the Intel part could outperform the AMD in compute-heavy tasks, but the database contains no measurements to confirm this. The Intel part also carries a higher TDP at 80 W versus 50 W, so any performance advantage would come at a power cost.

For users prioritizing verified performance and efficiency, the AMD Radeon 680M is the safer choice based on recorded data. For users who need maximum theoretical compute throughput from an integrated GPU and can accept an 80 W power envelope, the Intel Arc G3 Extreme offers a higher specification ceiling. The choice depends on whether measured results or architectural potential carry more weight. The database currently favors AMD on evidence and Intel on paper.

FAQ

Q: Which GPU has a higher benchmark score?

A: The AMD Radeon 680M has an average benchmark score of 15270, while the Intel Arc G3 Extreme has no recorded benchmark scores, giving it an average of 0.

Q: How does the AMD Radeon 680M compare to its nearest rivals?

A: The AMD part scores 0.7% higher than the AMD Radeon RX 7600, 0.5% higher than the NVIDIA GeForce RTX 3050 OEM, and is essentially tied with the NVIDIA GeForce GTX 580 and RTX 2060, which trail by 0.1%.

Q: What is the shading unit count for each GPU?

A: The Intel Arc G3 Extreme has 1536 shading units, exactly double the AMD Radeon 680M's 768 shading units.

Q: Which GPU has a higher boost clock?

A: The Intel Arc G3 Extreme boosts to 2500 MHz, while the AMD Radeon 680M boosts to 2200 MHz.

Q: What are the pixel rates for the two GPUs?

A: The AMD Radeon 680M delivers 70.40 GPixel/s, which is higher than the Intel Arc G3 Extreme's 60.00 GPixel/s.

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 power consumption difference?

A: The AMD Radeon 680M has a TDP of 50 W, while the Intel Arc G3 Extreme has a TDP of 80 W.