AMD Radeon PRO V620 vs Intel Arc A770 Comparison

Head-to-Head Benchmarks

The head-to-head data contains two shared benchmark results, and the AMD Radeon PRO V620 wins both. The largest margin appears in Geekbench Vulkan, where the AMD card scores 144,364 against the Intel Arc A770's 94,284, a delta of 53.1%. This is a decisive gap, indicating a substantial advantage in Vulkan compute workloads. The AMD Radeon PRO V620 also takes the Geekbench OpenCL test with 128,580 points versus 109,175 for the Intel Arc A770, a 17.8% lead. These two results give the AMD card a clean 2-0 record in the recorded head-to-head comparisons.

Interpreting these numbers through the database's average benchmark scores adds context. The AMD Radeon PRO V620 holds an average benchmark score of 136,472, placing it in the 96th percentile of all GPUs. The Intel Arc A770, by contrast, has an average score of 68,809, which puts it in the 90th percentile. The discrepancy between the average scores and the head-to-head deltas is notable: the AMD card's average is roughly double the Intel card's average, but the head-to-head OpenCL delta is only 17.8%. This suggests that the Intel Arc A770 performs closer to the AMD card in the specific OpenCL test than in its overall average, while the Vulkan test reveals a much wider gulf.

Looking at the nearest rivals for each card helps position these scores. The AMD Radeon PRO V620's closest competitor is the AMD Radeon Pro W6800X Duo, with an average score of 135,774, a delta of 0.5%. This means the two are nearly identical in average performance. The Intel Arc A770's nearest rival is the NVIDIA CMP 90HX, which scores 69,000, a delta of -0.3%; the Intel card is essentially tied with that NVIDIA part. The AMD card's average score of 136,472 sits far above the Intel card's 68,809, and the percentile rankings confirm this: 96th versus 90th. The data shows a clear performance hierarchy, with the AMD Radeon PRO V620 occupying a higher tier entirely.

Architecture Differences

The two cards come from different architectural lineages. The AMD Radeon PRO V620 is built on RDNA 2.0, using the Navi 21 chip, and belongs to the Radeon Pro Navi (Navi II Series) generation. The Intel Arc A770 uses the Xe-HPG architecture with the DG2-512 chip, part of the Alchemist (Arc 7) generation. Manufacturing processes differ: AMD uses a 7 nm node from TSMC, while Intel uses a 6 nm node, also from TSMC. The transistor counts reflect these differences, with the AMD chip containing 26,800 million transistors on a 520 mm² die, yielding a density of 51.5 million transistors per mm². The Intel chip packs 21,700 million transistors into a smaller 406 mm² die, giving a higher density of 53.4 million transistors per mm².

Compute resources diverge significantly. The AMD Radeon PRO V620 has 4,608 shading units, 288 texture mapping units, and 128 raster operations pipelines. It also includes 72 ray tracing cores. The Intel Arc A770 has 4,096 shading units, 256 texture mapping units, and 128 raster operations pipelines, with 32 ray tracing cores. In raw throughput, the AMD card delivers 20.28 TFLOPS of FP32 performance and 40.55 TFLOPS of FP16 (2:1). The Intel card offers 19.66 TFLOPS of FP32 and 39.32 TFLOPS of FP16 (2:1). The AMD card holds a small edge in both metrics, roughly 3% in FP32 and FP16. Pixel rate favors the Intel card: 307.2 GPixel/s versus 281.6 GPixel/s for AMD, a 9% advantage. Texture rates are close, with AMD at 633.6 GTexel/s and Intel at 614.4 GTexel/s.

Memory configurations show a major split. Both cards use GDDR6 memory on a 256-bit bus, and both achieve 512.0 GB/s of bandwidth. The difference lies in capacity: the AMD Radeon PRO V620 has 32 GB, while the Intel Arc A770 has 16 GB. Clock speeds also differ, with the AMD card running at a base of 1825 MHz and a boost of 2200 MHz. The Intel card runs higher, with a base of 2100 MHz and a boost of 2400 MHz. Memory clocks are identical at 2000 MHz, translating to 16 Gbps effective on both. Power requirements reflect the performance gap: the AMD card has a TDP of 300 W and needs a 700 W suggested PSU, while the Intel card draws 225 W with a 550 W suggested PSU. Both are dual-slot designs, but the AMD card uses 2x 8-pin power connectors, whereas the Intel card uses 1x 6-pin plus 1x 8-pin.

Where Each One Wins

The AMD Radeon PRO V620 wins in compute-oriented workloads, as evidenced by its Vulkan and OpenCL results. The 53.1% lead in Vulkan indicates a strong advantage for applications that leverage this API for general-purpose GPU compute or rendering. The 17.8% lead in OpenCL reinforces this pattern. The higher FP32 throughput of 20.28 TFLOPS, combined with double the memory capacity at 32 GB, makes this card suitable for large datasets that exceed 16 GB. The 72 ray tracing cores also suggest a capability for ray-traced workloads, though the head-to-head data does not include a dedicated ray tracing benchmark.

The Intel Arc A770, despite losing both head-to-head tests, shows strengths in specific areas. Its pixel rate of 307.2 GPixel/s exceeds the AMD card's 281.6 GPixel/s, which could translate to advantages in fill-rate-bound scenarios such as high-resolution rasterization. The higher boost clock of 2400 MHz versus 2200 MHz also suggests responsiveness in lightly threaded workloads. The lower TDP of 225 W means less power draw, and the database shows it has a 90th percentile ranking, which is respectable. However, in the two shared benchmarks, the Intel card trails by double-digit percentages, so its wins are limited to architectural metrics rather than recorded test results.

The average benchmark score tells a broader story. The AMD Radeon PRO V620's 136,472 average places it among the top 4% of all GPUs (96th percentile). The Intel Arc A770's 68,809 average places it in the 90th percentile, which is still above most GPUs but far behind the AMD card. In the database's rival lists, the AMD card competes with professional-grade parts like the AMD Radeon Pro W6800X Duo and the NVIDIA RTX 4000 Ada Generation, while the Intel card's rivals include the NVIDIA CMP 90HX and the AMD Radeon Instinct MI25. This positions the AMD card in a workstation-class tier, whereas the Intel card sits closer to mainstream or mid-range performance levels.

Specification Differences

The two cards differ across nearly every major specification category. The AMD Radeon PRO V620 uses the Navi 21 chip on RDNA 2.0 architecture with a 7 nm process, while the Intel Arc A770 uses the DG2-512 chip on Xe-HPG architecture with a 6 nm process. Transistor counts are 26,800 million for AMD and 21,700 million for Intel, with die sizes of 520 mm² and 406 mm², respectively. Transistor density is slightly higher on the Intel chip at 53.4 million per mm² versus 51.5 million per mm². Base clocks are 1825 MHz for AMD and 2100 MHz for Intel, while boost clocks are 2200 MHz and 2400 MHz, respectively.

Memory capacity is the most significant difference: 32 GB on the AMD card versus 16 GB on the Intel card. Both use GDDR6 on a 256-bit bus with identical bandwidth of 512.0 GB/s. Shading units number 4,608 on AMD versus 4,096 on Intel, with texture mapping units at 288 versus 256. Raster operations pipelines are equal at 128 on both. Ray tracing cores differ sharply: 72 on AMD versus 32 on Intel. FP32 performance is 20.28 TFLOPS on AMD and 19.66 TFLOPS on Intel, with FP16 at 40.55 TFLOPS and 39.32 TFLOPS, respectively. Pixel rate favors Intel at 307.2 GPixel/s over AMD's 281.6 GPixel/s, while texture rate slightly favors AMD at 633.6 GTexel/s versus 614.4 GTexel/s.

Power and physical specifications diverge. The AMD card has a TDP of 300 W with a 700 W suggested PSU, while the Intel card has a TDP of 225 W with a 550 W suggested PSU. Power connectors are 2x 8-pin on AMD and 1x 6-pin plus 1x 8-pin on Intel. Both are dual-slot cards, but the AMD card has recorded dimensions of 267 mm in length, 120 mm in height, and 50 mm in width, while the Intel card has no recorded dimensions. Display outputs differ completely: the AMD Radeon PRO V620 has no outputs, while the Intel Arc A770 has 1x HDMI 2.1 and 3x DisplayPort 2.0. Both support PCIe 4.0 x16, DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Release dates are about a year apart, with AMD on November 3, 2021, and Intel on October 11, 2022. Production status is end-of-life for both. The Intel card has a launch MSRP of 329 USD, while the AMD card has no recorded launch MSRP.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon PRO V620 has an average benchmark score of 136,472, compared to the Intel Arc A770's 68,809. The AMD card also ranks in the 96th percentile of all GPUs, versus the 90th percentile for the Intel card.

Q: How much faster is the AMD Radeon PRO V620 in Vulkan?

A: In the Geekbench Vulkan test, the AMD Radeon PRO V620 scores 144,364 against the Intel Arc A770's 94,284, a delta of 53.1%. This is the largest performance gap recorded in the head-to-head benchmarks.

Q: What is the memory capacity difference between the two cards?

A: The AMD Radeon PRO V620 has 32 GB of GDDR6 memory, while the Intel Arc A770 has 16 GB of GDDR6 memory. Both use a 256-bit bus and provide 512.0 GB/s of bandwidth.

Q: Which card has more ray tracing cores?

A: The AMD Radeon PRO V620 has 72 ray tracing cores, while the Intel Arc A770 has 32 ray tracing cores. The AMD card also has more shading units: 4,608 versus 4,096.

Q: Do both cards support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. They also both use PCIe 4.0 x16 interfaces.

Q: What is the power draw difference?

A: The AMD Radeon PRO V620 has a TDP of 300 W and a suggested PSU of 700 W, while the Intel Arc A770 has a TDP of 225 W and a suggested PSU of 550 W.

The Verdict

The data points to a clear choice for compute-heavy workloads. The AMD Radeon PRO V620 wins both head-to-head benchmarks, with a 17.8% lead in OpenCL and a 53.1% lead in Vulkan. Its average benchmark score of 136,472 is nearly double the Intel Arc A770's 68,809, and its 96th percentile ranking places it far above the Intel card's 90th percentile. The 32 GB memory capacity offers headroom for large datasets that the 16 GB Intel card cannot accommodate. The higher ray tracing core count of 72 versus 32 also suggests a structural advantage in ray-traced tasks.

The Intel Arc A770 is not without merits. Its pixel rate of 307.2 GPixel/s exceeds the AMD card's 281.6 GPixel/s, and its lower TDP of 225 W means less power consumption. The higher boost clock of 2400 MHz could benefit certain latency-sensitive tasks. It also has display outputs, whereas the AMD card has none, making the Intel card usable for direct display connections. For users who need a GPU with video output capabilities or who prioritize lower power draw, the Intel card may suffice. However, the recorded benchmark data shows no test where the Intel card wins.

The verdict from the database is straightforward. The AMD Radeon PRO V620 is the superior performer in every recorded benchmark, with a substantial margin in Vulkan and a solid lead in OpenCL. Its higher average score, higher percentile ranking, and double memory capacity make it the better choice for compute-intensive applications. The Intel Arc A770, while competitive in certain architectural metrics like pixel rate and clock speed, does not translate those advantages into wins in the shared tests. Users should select the AMD card for maximum compute performance, and the Intel card only if display output or lower power draw are the primary requirements.