AMD Radeon RX 6600 LE vs Intel Arc Pro B65 Comparison

The Verdict

The database records two very different GPU designs. The AMD Radeon RX 6600 LE is positioned as a mainstream, active RDNA 2.0 part with a strong benchmark presence, while the Intel Arc Pro B65 is a professional-oriented Battlemage card with no recorded benchmark scores yet. Based strictly on the data, the RX 6600 LE delivers verified performance, sitting at the 91st percentile among all GPUs with an average benchmark score of 70,829. The Arc Pro B65 holds the 50th percentile with an average score of 0, indicating no completed measurements.

For users requiring immediate, tested performance in OpenCL and Vulkan workloads, the RX 6600 LE is the only option with empirical results. The card posts 69,229 in Geekbench OpenCL and 72,428 in Geekbench Vulkan. Its nearest rivals show it is competitive with the NVIDIA RTX A3000 Mobile (70,140, 1% behind), the AMD Radeon RX 6650M (71,768, 1.3% ahead of the RX 6600 LE), and the NVIDIA Quadro P6000 (69,986, 1.2% behind). The Arc Pro B65, by contrast, has no rival data and no benchmark entries, so its performance class cannot be determined from the database.

The choice depends on workload priorities. The RX 6600 LE suits users who need a proven, active card with concrete scores and a 132 W TDP. The Arc Pro B65 targets users who prioritize memory capacity and interface bandwidth: it offers 32 GB of GDDR6, a 256-bit bus, and PCIe 5.0 x16, versus the RX 6600 LE's 8 GB, 128-bit bus, and PCIe 4.0 x8. The Arc Pro B65 also carries a 200 W TDP and a 550 W suggested PSU, while the RX 6600 LE uses 132 W and a 300 W suggested PSU. Without benchmark data, the Arc Pro B65 remains an unverified entry, suitable only for adopters willing to rely on its specifications rather than measured results.

Architecture Differences

The two GPUs come from different architectural generations and foundry processes. The AMD Radeon RX 6600 LE uses the Navi 23 chip built on RDNA 2.0 architecture, fabricated by TSMC on a 7 nm process. The die measures 237 mm² and contains 11,060 million transistors, yielding a transistor density of 46.7M per mm². Its generation is listed as Navi II (RX 6000). The Intel Arc Pro B65 uses the BMG-G21 chip built on Xe2-HPG architecture, also fabricated by TSMC but on a 5 nm process. The die is larger at 272 mm² and packs 19,600 million transistors, resulting in a higher density of 72.1M per mm². Its generation is Battlemage (Pro Series).

The compute layouts differ substantially. The RX 6600 LE has 1,792 shading units, 112 texture mapping units, 64 raster output units, and 28 ray tracing cores. The Arc Pro B65 has 2,560 shading units, 160 TMUs, 80 ROPs, and 20 ray tracing cores. The Intel part has more shading units, TMUs, and ROPs, but fewer dedicated ray tracing cores. Neither card lists tensor cores, so both rely on standard shader and RT hardware.

Clock behavior also diverges. The RX 6600 LE has a base clock of 1626 MHz, a boost clock of 2495 MHz, and a game clock of 2045 MHz. The Arc Pro B65 runs at a flat 2400 MHz for both base and boost, with no game clock listed. The memory clocks differ as well: the RX 6600 LE uses 1750 MHz with 14 Gbps effective, while the Arc Pro B65 uses 2375 MHz with 19 Gbps effective.

The API support is identical in scope: both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The display outputs differ, with the RX 6600 LE offering 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the Arc Pro B65 provides 4x DisplayPort 2.1. The production status for both is Active, but the release dates are distinct: the RX 6600 LE launched on 2023-12-07, while the Arc Pro B65 launched on 2026-03-31.

Head-to-Head Benchmarks

The head-to-head benchmark table in the database is empty, with zero recorded wins for either card. Consequently, no direct comparative scores exist between the AMD Radeon RX 6600 LE and the Intel Arc Pro B65. The only available benchmark data comes from the RX 6600 LE's standalone entries.

The RX 6600 LE achieves 69,229 in Geekbench OpenCL and 72,428 in Geekbench Vulkan. Its average benchmark score across all tests is 70,829. The Intel Arc Pro B65 has no entries in its benchmark array, resulting in an average score of 0. The percentile rankings reinforce this gap: the RX 6600 LE sits at the 91st percentile among all GPUs, while the Arc Pro B65 sits at the 50th percentile, which is the median position and reflects its lack of measured performance.

For the RX 6600 LE, the nearest rivals provide context. The NVIDIA RTX A3000 Mobile averages 70,140, which is 1% higher than the RX 6600 LE's average. The NVIDIA Quadro P6000 averages 69,986, also 1.2% higher. The AMD Radeon Pro WX 8200 averages 69,870, which is 1.4% lower than the RX 6600 LE. The AMD Radeon RX 6650M averages 71,768, which is 1.3% higher than the RX 6600 LE. These deltas indicate that the RX 6600 LE sits in a tightly packed performance band, within roughly 1.5% of four different rivals.

The Arc Pro B65 has no nearest rivals listed, so no comparative deltas can be computed. The database shows zero wins for either side, confirming that no head-to-head tests have been recorded. Any claims of performance superiority between these two specific cards would lack empirical support.

Specification Differences

The recorded specifications reveal distinct design priorities. The memory subsystem is the largest divergence. The RX 6600 LE has 8 GB of GDDR6 on a 128-bit bus, delivering 224.0 GB/s of bandwidth. The Arc Pro B65 has 32 GB of GDDR6 on a 256-bit bus, delivering 608.0 GB/s of bandwidth. The Intel card offers four times the capacity and nearly three times the bandwidth.

The compute throughput also differs. The RX 6600 LE delivers 8.942 TFLOPS of FP32 and 17.88 TFLOPS of FP16 (2:1). The Arc Pro B65 delivers 12.29 TFLOPS of FP32 and 24.58 TFLOPS of FP16 (2:1). The pixel rate for the RX 6600 LE is 159.7 GPixel/s, while the Arc Pro B65 reaches 192.0 GPixel/s. The texture rates are 279.4 GTexel/s for the AMD card and 384.0 GTexel/s for the Intel card.

The power profiles are distinct. The RX 6600 LE has a TDP of 132 W and a suggested PSU of 300 W. The Arc Pro B65 has a TDP of 200 W and a suggested PSU of 550 W. Both use a dual-slot design and a single 8-pin power connector. The bus interfaces differ: the RX 6600 LE uses PCIe 4.0 x8, while the Arc Pro B65 uses PCIe 5.0 x16. This gives the Intel card a wider and newer interface for data transfer.

Physical dimensions are partially recorded. The RX 6600 LE measures 190 mm in length (7.5 inches), 110 mm in height (4.3 inches), and 40 mm in width (1.6 inches). The Arc Pro B65 has no recorded dimensions for length, height, or width. The transistor counts are 11,060 million for the AMD part and 19,600 million for the Intel part, with die sizes of 237 mm² and 272 mm² respectively. The process nodes are 7 nm and 5 nm, both TSMC.

Clock speeds differ in structure. The RX 6600 LE has distinct base, boost, and game clocks (1626 MHz, 2495 MHz, 2045 MHz), while the Arc Pro B65 has a uniform 2400 MHz for base and boost. The memory clock for the RX 6600 LE is 1750 MHz (14 Gbps effective), while the Arc Pro B65 runs at 2375 MHz (19 Gbps effective). The release dates are also different, with the RX 6600 LE launching on 2023-12-07 and the Arc Pro B65 on 2026-03-31.

FAQ

Q: Which GPU has more shading units?

A: The Intel Arc Pro B65 has 2,560 shading units, while the AMD Radeon RX 6600 LE has 1,792 shading units. The Intel card also has more texture mapping units (160 vs 112) and more raster output units (80 vs 64).

Q: How do the memory capacities compare?

A: The Intel Arc Pro B65 offers 32 GB of GDDR6 on a 256-bit bus with 608.0 GB/s bandwidth. The AMD Radeon RX 6600 LE offers 8 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth.

Q: What benchmark scores are recorded for each card?

A: The AMD Radeon RX 6600 LE has recorded scores of 69,229 in Geekbench OpenCL and 72,428 in Geekbench Vulkan, with an average of 70,829. The Intel Arc Pro B65 has no recorded benchmark scores, resulting in an average of 0.

Q: How does the RX 6600 LE compare to its nearest rivals?

A: The RX 6600 LE is 1% behind the NVIDIA RTX A3000 Mobile (70,140), 1.2% behind the NVIDIA Quadro P6000 (69,986), 1.4% ahead of the AMD Radeon Pro WX 8200 (69,870), and 1.3% behind the AMD Radeon RX 6650M (71,768).

Q: What are the power requirements for each card?

A: The AMD Radeon RX 6600 LE has a TDP of 132 W and a suggested PSU of 300 W. The Intel Arc Pro B65 has a TDP of 200 W and a suggested PSU of 550 W. Both use a dual-slot design with a single 8-pin power connector.

Q: Which card has a higher transistor density?

A: The Intel Arc Pro B65 has a transistor density of 72.1M per mm², built on a 5 nm TSMC process with 19,600 million transistors on a 272 mm² die. The AMD Radeon RX 6600 LE has a density of 46.7M per mm², built on a 7 nm TSMC process with 11,060 million transistors on a 237 mm² die.