Intel Arc A380E vs Intel Arc B770 Comparison

FAQ

Q: What are the core architectural differences between the Arc A380E and Arc B770?

A: The Arc A380E uses the DG2-128 chip built on Xe-HPG architecture (Alchemist generation) on a 6 nm TSMC process. The Arc B770 uses the BMG-G31 chip built on Xe2-HPG architecture (Battlemage generation) on a 5 nm TSMC process. The B770 has 4096 shading units versus 1024 on the A380E, and 32 ray tracing cores versus 8.

Q: How do the memory subsystems compare?

A: The A380E has 6 GB of GDDR6 on a 96-bit bus with 186.0 GB/s bandwidth. The B770 has 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The B770's memory clock runs at 2000 MHz (16 Gbps effective) versus 1937 MHz (15.5 Gbps effective) on the A380E.

Q: What is the power consumption difference?

A: The A380E has a TDP of 75 W with no power connectors and a suggested PSU of 250 W. The B770 has a TDP of 225 W, requires 1x 6-pin plus 1x 8-pin power connectors, and a suggested PSU of 550 W.

Q: What display outputs does each card provide?

A: The A380E offers 4x DisplayPort 2.0 outputs. The B770 provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs.

Q: What is the physical size difference?

A: The A380E measures 254 mm in length, 127 mm in height, and 20 mm in width, occupying a single slot. The B770 occupies a dual-slot design, with dimensions not recorded in the database.

Q: Which card has a higher pixel and texture throughput?

A: The B770 delivers 307.2 GPixel/s pixel rate and 614.4 GTexel/s texture rate. The A380E delivers 64.00 GPixel/s and 128.0 GTexel/s respectively. The B770 is approximately 4.8 times faster in pixel rate and 4.8 times faster in texture rate.

Architecture Differences

The two cards represent distinct architectural generations from Intel. The Arc A380E is built on the Xe-HPG microarchitecture, specifically the Alchemist generation, using the DG2-128 chip fabricated on TSMC's 6 nm process. The die measures 157 mm² and contains 7,200 million transistors, yielding a transistor density of 45.9M per mm².

The Arc B770 moves to the Xe2-HPG microarchitecture in the Battlemage generation, built on the BMG-G31 chip fabricated on TSMC's 5 nm process. The die is significantly larger at 368 mm², though the transistor count is not recorded in the database. The shift to 5 nm allows for greater transistor density per area, and the larger die accommodates substantially more compute resources.

The shading unit count scales from 1024 on the A380E to 4096 on the B770, a 4x increase. Texture mapping units scale from 64 to 256, and raster operation units from 32 to 128. Ray tracing cores increase from 8 to 32, also a 4x jump. Neither card lists tensor cores in the database.

The memory architecture differs substantially. The A380E uses a 96-bit memory bus with 6 GB GDDR6, while the B770 uses a 256-bit bus with 16 GB GDDR6. This quadrupling of bus width and memory capacity directly impacts bandwidth: 186.0 GB/s versus 512.0 GB/s, a 2.75x improvement.

The B770 also has higher clock speeds. Base clock is 2100 MHz versus 2000 MHz, and boost clock is 2400 MHz versus 2000 MHz. The A380E has no boost delta, running at a flat 2000 MHz. Memory clocks are 2000 MHz (16 Gbps effective) versus 1937 MHz (15.5 Gbps effective).

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The bus interface differs: the A380E uses PCIe 4.0 x8, while the B770 uses PCIe 4.0 x16, providing double the host interface bandwidth.

The production status differs as well. The A380E is marked end-of-life, with its release date recorded as 2024-03-31. The B770 has a release date of 2025-12-31 and no production status recorded. The A380E's predecessor is listed as Xe Graphics, and its successor as Battlemage. The B770's predecessor is Alchemist, with no successor listed.

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark scores for these two cards. The benchmark arrays are empty for both items, and the wins counters show zero for each. The percentile rankings for both cards sit at 50, indicating median positioning within the database's all-GPU distribution, but this is a static field rather than a derived benchmark result.

Without direct benchmark measurements, the comparison must rely on the theoretical specifications recorded. The compute throughput figures show the B770 delivering 19.66 TFLOPS FP32 versus 4.096 TFLOPS on the A380E, a 4.8x advantage. FP16 performance scales similarly: 39.32 TFLOPS versus 8.192 TFLOPS, again a 4.8x difference when accounting for the 2:1 ratio on both cards.

The fill-rate metrics follow the same pattern. The B770's 307.2 GPixel/s pixel rate is approximately 4.8 times the A380E's 64.00 GPixel/s. Texture rate on the B770 reaches 614.4 GTexel/s versus 128.0 GTexel/s, also a 4.8x multiplier.

Memory bandwidth shows a smaller relative gap. The B770's 512.0 GB/s is 2.75 times the A380E's 186.0 GB/s. This narrower ratio suggests that memory-bound workloads would see less scaling than compute-bound tasks, though the larger 16 GB capacity on the B770 also affects which workloads can fit in local memory at all.

The absence of recorded benchmark data means the database cannot confirm real-world performance deltas. Specification-derived estimates indicate the B770 should outperform the A380E across all measured categories, with the largest advantages in compute throughput and fill rates, and the smallest (though still substantial) advantage in memory bandwidth.

The Verdict

The data indicates a clear segmentation between these two cards. The Arc A380E, now marked end-of-life, occupies the entry-level position in Intel's Alchemist generation. Its 75 W TDP, single-slot design, and lack of power connectors make it suitable for systems with constrained power delivery and physical space. The 6 GB memory capacity and 96-bit bus limit its ceiling for modern workloads, but the 4x DisplayPort 2.0 outputs support multi-monitor configurations.

The Arc B770 represents a high-end Battlemage part. Its 4096 shading units, 32 ray tracing cores, and 16 GB memory on a 256-bit bus place it in a different performance class entirely. The 225 W TDP and dual-slot cooler with 1x 6-pin plus 1x 8-pin connectors require a more substantial power supply, listed at 550 W suggested. The PCIe 4.0 x16 interface provides full host bandwidth.

For users with modest graphical demands, or those building compact systems, the A380E's specifications show a card that handles basic rendering and display tasks. The database records no benchmark wins for either card, so performance rankings cannot be assessed beyond specification analysis.

The B770 is the card for workloads that need large memory capacity and high compute throughput. The 16 GB frame buffer supports higher-resolution textures and larger datasets. The 4x scaling in shading units, TMUs, ROPs, and RT cores indicates proportionally higher throughput across all rendering stages.

The release dates place the A380E in early 2024 and the B770 at the end of 2025, suggesting the B770 is the newer design with architectural refinements from the Xe2-HPG generation. The predecessor-successor chain confirms this: the A380E's successor is listed as Battlemage, which is the B770's generation.

Specification Differences

| Specification | Intel Arc A380E | Intel Arc B770 |

|---|---|---|

| Chip | DG2-128 | BMG-G31 |

| Architecture | Xe-HPG | Xe2-HPG |

| Generation | Alchemist (Arc 3) | Battlemage (Arc 7) |

| Process Node | 6 nm | 5 nm |

| Transistors | 7,200 million | unknown |

| Die Size | 157 mm² | 368 mm² |

| Base Clock | 2000 MHz | 2100 MHz |

| Boost Clock | 2000 MHz | 2400 MHz |

| Memory Clock | 1937 MHz 15.5 Gbps effective | 2000 MHz 16 Gbps effective |

| Memory Size | 6 GB | 16 GB |

| Memory Type | GDDR6 | GDDR6 |

| Bus Width | 96 bit | 256 bit |

| Bandwidth | 186.0 GB/s | 512.0 GB/s |

| Shading Units | 1024 | 4096 |

| TMUs | 64 | 256 |

| ROPs | 32 | 128 |

| RT Cores | 8 | 32 |

| Pixel Rate | 64.00 GPixel/s | 307.2 GPixel/s |

| Texture Rate | 128.0 GTexel/s | 614.4 GTexel/s |

| FP32 | 4.096 TFLOPS | 19.66 TFLOPS |

| FP16 | 8.192 TFLOPS (2:1) | 39.32 TFLOPS (2:1) |

| TDP | 75 W | 225 W |

| Slot Width | Single-slot | Dual-slot |

| Power Connectors | None | 1x 6-pin + 1x 8-pin |

| Suggested PSU | 250 W | 550 W |

| Bus Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |

| Display Outputs | 4x DisplayPort 2.0 | 1x HDMI 2.1a, 3x DisplayPort 2.1 |

| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |

| OpenGL | 4.6 | 4.6 |

| Vulkan | 1.4 | 1.4 |

| Production Status | End-of-life | Not recorded |

| Release Date | 2024-03-31 | 2025-12-31 |

| Predecessor | Xe Graphics | Alchemist |

| Successor | Battlemage | None |

Where Each One Wins

The Arc A380E wins in system integration. Its 75 W TDP requires no auxiliary power connectors, and the suggested PSU of 250 W accommodates modest builds. The single-slot design with 254 mm length and 127 mm height fits in space-constrained chassis. The 4x DisplayPort 2.0 outputs support up to four displays simultaneously, which suits multi-monitor productivity setups that do not demand high frame rates.

The A380E also wins on physical footprint. At 20 mm width, it occupies minimal space, leaving room for other expansion cards. The lack of power connectors simplifies cable management in small form factor systems.

The Arc B770 wins in every measured performance category. Compute throughput is 4.8x higher in both FP32 and FP16. Pixel rate and texture rate are each 4.8x higher. Memory bandwidth is 2.75x higher, and memory capacity is 2.67x larger.

The B770's 16 GB memory capacity enables workloads that the A380E cannot accommodate at all. Large texture sets, high-resolution rendering buffers, and AI inference models that exceed 6 GB simply cannot run on the A380E. The 256-bit bus provides the bandwidth to feed the 4096 shading units without stalling.

The B770's PCIe 4.0 x16 interface doubles the host link bandwidth versus the A380E's x8 connection. This matters for data-heavy workloads that stream geometry or textures from system memory.

The B770 also wins on clock scaling. Its boost clock of 2400 MHz represents a 300 MHz increase over base, while the A380E has no boost headroom. This gives the B770 additional performance under thermal headroom that the A380E cannot access.

The newer Xe2-HPG architecture on the B770, built on the 5 nm process, represents an architectural generation ahead of the A380E's Xe-HPG on 6 nm. Though the database does not record architectural efficiency metrics, the smaller process node typically allows higher clock speeds at equivalent power, and the B770's higher clocks confirm this trend.

For display connectivity, the B770 adds an HDMI 2.1a port alongside 3x DisplayPort 2.1, while the A380E provides only DisplayPort. Users needing HDMI output directly from the GPU would require an adapter on the A380E, whereas the B770 has native support.

The production status also favors the B770 in availability terms. The A380E is marked end-of-life, indicating discontinued manufacturing, while the B770 has no such status recorded. New units of the A380E may become scarce over time, while the B770 is a current-generation product.