AMD Radeon RX 6600 LE vs Intel Arc B770 Comparison

Where Each One Wins

The recorded data splits these two cards into very different competitive positions. The AMD Radeon RX 6600 LE has an average benchmark score of 70829, placing it in the 91st percentile of all GPUs in the database. It posts a Geekbench OpenCL score of 69229 and a Geekbench Vulkan score of 72428. Its nearest rivals include the NVIDIA RTX A3000 Mobile at 70140 (1% behind the AMD card), the NVIDIA Quadro P6000 at 69986 (1.2% behind), the AMD Radeon Pro WX 8200 at 69870 (1.4% behind), and the AMD Radeon RX 6650M at 71768 (1.3% ahead of the RX 6600 LE). The data shows a card that sits in a tight cluster, trading places with professional and mobile parts within a roughly 3% band.

The Intel Arc B770, by contrast, has no benchmark results in the database. Its average benchmark score is recorded as 0, its percentile versus all GPUs is 50, and its nearest rivals list is empty. The head-to-head benchmark array between the two cards contains no entries, and the win counters show zero wins for each side. This means the Arc B770 cannot be placed in any performance tier from measured results; the database simply has no recorded scores for it.

Where each one wins is therefore determined by data availability rather than direct comparison. The RX 6600 LE wins in every recorded benchmark category because it is the only one with scores. The Arc B770 wins in memory capacity, memory bandwidth, shading unit count, texture mapping unit count, render output unit count, and raw compute throughput, but without benchmark scores those hardware advantages remain unquantified in practice.

Architecture Differences

The AMD Radeon RX 6600 LE uses the Navi 23 chip built on RDNA 2.0 architecture, belonging to the Navi II generation of the RX 6000 series. It is fabricated on a 7 nm process at TSMC with 11,060 million transistors on a 237 mm² die, giving a transistor density of 46.7 million per square millimeter. The card has 1792 shading units, 112 texture mapping units, 64 render output units, and 28 ray tracing cores. It does not list tensor cores. Its compute rates are 8.942 TFLOPS FP32 and 17.88 TFLOPS FP16 at a 2:1 ratio. Pixel rate is 159.7 GPixel/s and texture rate is 279.4 GTexel/s.

The Intel Arc B770 uses the BMG-G31 chip built on Xe2-HPG architecture, belonging to the Battlemage generation of the Arc 7 series. It is fabricated on a 5 nm process at TSMC with a die size of 368 mm²; transistor count is listed as unknown and transistor density is not provided. The card has 4096 shading units, 256 texture mapping units, 128 render output units, and 32 ray tracing cores. It does not list tensor cores. Its compute rates are 19.66 TFLOPS FP32 and 39.32 TFLOPS FP16 at a 2:1 ratio. Pixel rate is 307.2 GPixel/s and texture rate is 614.4 GTexel/s.

The architectural gap is substantial. The Intel part doubles the shading units, texture mapping units, and render output units of the AMD part, and adds four more ray tracing cores. It more than doubles FP32 throughput, from 8.942 to 19.66 TFLOPS, and more than doubles pixel and texture rates. The process node shrinks from 7 nm to 5 nm, and the die grows from 237 mm² to 368 mm². Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API coverage is identical. The RX 6600 LE uses a PCIe 4.0 x8 interface while the Arc B770 uses PCIe 4.0 x16, a difference that affects available bandwidth to the host system. Display outputs differ as well: the AMD card has 1x HDMI 2.1 and 3x DisplayPort 1.4a, while the Intel card has 1x HDMI 2.1a and 3x DisplayPort 2.1.

The Verdict

The data allows only one defensible verdict: the AMD Radeon RX 6600 LE is the only card in this comparison with measured performance. Its 91st percentile ranking and average score of 70829 place it among functional mid-range parts, within 1.4% of the AMD Radeon Pro WX 8200 and 1% of the NVIDIA RTX A3000 Mobile. The Intel Arc B770 has no recorded scores, no rivals, and a placeholder percentile of 50, which reflects the absence of data rather than actual performance. Any buyer choosing between these two based on the database would have to rely on the RX 6600 LE for verified results.

For users who prioritize confirmed compute performance in OpenCL and Vulkan workloads, the RX 6600 LE is the only option with numbers attached. Its 69229 OpenCL score and 72428 Vulkan score are the sole measured data points in this matchup. The Arc B770 offers a larger memory pool of 16 GB versus 8 GB, double the bandwidth at 512.0 GB/s versus 224.0 GB/s, and a much higher theoretical FP32 rate of 19.66 TFLOPS, but none of that is validated by benchmark results in the database. The recorded data cannot confirm whether those specifications translate into faster real-world performance.

The production status also differs: the RX 6600 LE is listed as Active, while the Arc B770 has no production status recorded. The AMD card has a release date of 2023-12-07, while the Intel card has a release date of 2025-12-31. The RX 6600 LE has a predecessor in Navi and a successor in Navi III; the Arc B770 has a predecessor in Alchemist and no successor listed. From the database perspective, the RX 6600 LE is a shipped, measured, active product, and the Arc B770 is a specification sheet with no measured output. The verdict is therefore that the RX 6600 LE is the verified performer, while the Arc B770 remains unproven in the recorded data.

FAQ

Q: Which card has the higher average benchmark score?

A: The AMD Radeon RX 6600 LE has an average benchmark score of 70829. The Intel Arc B770 has an average benchmark score of 0, meaning no benchmark results are recorded for it.

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

A: The RX 6600 LE is 1% ahead of the NVIDIA RTX A3000 Mobile, 1.2% ahead of the NVIDIA Quadro P6000, and 1.4% ahead of the AMD Radeon Pro WX 8200. It is 1.3% behind the AMD Radeon RX 6650M.

Q: What are the memory specifications of each card?

A: The RX 6600 LE has 8 GB of GDDR6 on a 128 bit bus with 224.0 GB/s bandwidth. The Arc B770 has 16 GB of GDDR6 on a 256 bit bus with 512.0 GB/s bandwidth.

Q: What is the FP32 compute throughput for each card?

A: The RX 6600 LE delivers 8.942 TFLOPS FP32. The Arc B770 delivers 19.66 TFLOPS FP32, which is more than double the AMD card's figure.

Q: Do both cards support the same graphics APIs?

A: Yes. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the power draw of each card?

A: The RX 6600 LE has a TDP of 132 W with a suggested PSU of 300 W. The Arc B770 has a TDP of 225 W with a suggested PSU of 550 W.

Head-to-Head Benchmarks

The head-to-head benchmark array for these two cards is empty. No test results are recorded for the pair, and the win counters show zero wins for each side. This is the most important finding in the comparison: there is no direct measured data connecting the RX 6600 LE and the Arc B770.

The only individual benchmark scores belong to the RX 6600 LE. Its Geekbench OpenCL score of 69229 and Geekbench Vulkan score of 72428 are the sole performance measurements in this matchup. The Arc B770 has no entries in its benchmark array, so there is no Geekbench score, no compute score, and no percentile ranking derived from actual testing. Its percentile of 50 is a neutral placeholder, not a reflection of measured performance.

Relative to its own nearest rivals, the RX 6600 LE shows a narrow competitive window. It is 1% faster than the NVIDIA RTX A3000 Mobile, which scores 70140, and 1.2% faster than the NVIDIA Quadro P6000, which scores 69986. It is 1.4% faster than the AMD Radeon Pro WX 8200, which scores 69870. The only rival ahead of it is the AMD Radeon RX 6650M at 71768, a 1.3% gap. These deltas place the RX 6600 LE in a dense pack where single-digit percentage differences separate cards.

The Arc B770 cannot be analyzed in the same way because its nearest rivals list is empty. There is no delta percentage, no rival score, and no comparative context. The database records its average score as 0, which means no measured data exists to rank it against anything. In a head-to-head sense, the Intel card is a specification-only entry, while the AMD card is a measured performer with a clear competitive position.

The biggest "win" for the RX 6600 LE is therefore the entirety of the measured benchmark record. Every score, every percentile, and every rival comparison in this matchup comes from the AMD card. The biggest "win" for the Arc B770 is its hardware specification sheet: 16 GB of memory, 512.0 GB/s of bandwidth, 4096 shading units, and 19.66 TFLOPS of FP32. But none of those numbers are validated by recorded test results, so the database cannot confirm whether they translate into actual performance advantages.

Specification Differences

The two cards differ across nearly every hardware field. The RX 6600 LE uses a 7 nm TSMC process with 11,060 million transistors on a 237 mm² die. The Arc B770 uses a 5 nm TSMC process with an unknown transistor count on a 368 mm² die. Transistor density is 46.7 million per square millimeter for the AMD card and not provided for the Intel card.

Clock speeds favor the Intel card in base frequency but the AMD card in boost frequency. 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 B770 has a base clock of 2100 MHz and a boost clock of 2400 MHz, with no game clock listed. Memory clocks differ as well: the AMD card runs at 1750 MHz with 14 Gbps effective, while the Intel card runs at 2000 MHz with 16 Gbps effective.

Memory capacity, bus width, and bandwidth all favor the Intel card. The RX 6600 LE has 8 GB of GDDR6 on a 128 bit bus with 224.0 GB/s bandwidth. The Arc B770 has 16 GB of GDDR6 on a 256 bit bus with 512.0 GB/s bandwidth. The Intel card doubles capacity, doubles bus width, and more than doubles bandwidth.

Compute resources strongly favor the Intel card. The RX 6600 LE has 1792 shading units, 112 TMUs, 64 ROPs, and 28 ray tracing cores. The Arc B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. FP32 throughput is 8.942 TFLOPS versus 19.66 TFLOPS, and FP16 throughput is 17.88 TFLOPS versus 39.32 TFLOPS. Pixel rate is 159.7 GPixel/s versus 307.2 GPixel/s, and texture rate is 279.4 GTexel/s versus 614.4 GTexel/s.

Power and connectivity also differ. The RX 6600 LE has a TDP of 132 W, a suggested PSU of 300 W, and a single 8-pin power connector. The Arc B770 has a TDP of 225 W, a suggested PSU of 550 W, and both a 6-pin and an 8-pin connector. Both are dual-slot cards. The AMD card uses PCIe 4.0 x8, while the Intel card uses PCIe 4.0 x16. Display outputs favor the Intel card with DisplayPort 2.1 versus DisplayPort 1.4a, and HDMI 2.1a versus HDMI 2.1. The RX 6600 LE has recorded dimensions of 190 mm length, 110 mm height, and 40 mm width; the Arc B770 has no dimensions recorded. The RX 6600 LE is listed as Active in production, while the Arc B770 has no production status.