Intel Arc A380E x2 vs Intel Arc Pro B70 Comparison

The Verdict

The Intel Arc A380E x2 and Intel Arc Pro B70 occupy entirely different performance tiers despite sharing the same manufacturer and API feature set. The A380E x2 is a small, low-power, multi-display card aimed at signage or compact systems, while the Pro B70 is a large, professional workstation GPU with massive memory and compute throughput. The data shows the Pro B70 delivers roughly 5.6 times the FP32 compute of the A380E x2, making it the clear choice for heavy 3D rendering, AI inference, or any workload that saturates GPU compute. The A380E x2, with its eight mini-DisplayPort outputs and 130 W power draw, is the pick for multi-screen video walls or digital signage where raw performance is secondary to display count and physical footprint.

For a builder assembling a professional workstation, the Pro B70 is the only defensible option. It offers 32 GB of GDDR6 memory, a 256-bit bus, and 608.0 GB/s of bandwidth, which is more than three times the bandwidth of the A380E x2. Its 22.94 TFLOPS FP32 throughput and 32 ray tracing cores place it in a different class entirely. The A380E x2, conversely, should be chosen only when the job is driving many displays from a single slot, low power envelope, and modest compute requirement. Its single-slot profile and 1x 6-pin connector make it far easier to integrate into compact chassis.

The launch MSRP of the Pro B70 is 949 USD. The A380E x2 has no listed launch MSRP in the database, but its end-of-life production status suggests it is a legacy product. There is no benchmark overlap in the recorded data, so direct performance comparisons rely on architectural and specification deltas rather than measured scores.

Architecture Differences

The A380E x2 uses the DG2-128 chip built on the Xe-HPG architecture, belonging to the Alchemist (Arc 3) generation. It is fabricated on a 6 nm process at TSMC, with 7,200 million transistors on a 157 mm² die, yielding a transistor density of 45.9 million per square millimeter. The Pro B70 uses the BMG-G31 chip on the newer Xe2-HPG architecture, part of the Battlemage (Pro Series) generation. It is manufactured on a 5 nm process at TSMC, with a die size of 368 mm², though transistor count is listed as unknown in the database.

The clock behavior differs substantially. The A380E x2 runs at a flat 2000 MHz for both base and boost, with memory at 1937 MHz (15.5 Gbps effective). The Pro B70 boosts much higher, from a 2280 MHz base to a 2800 MHz boost, with memory at 2375 MHz (19 Gbps effective). This clock advantage compounds with the larger shader array.

The core configurations are not comparable in scale. The A380E x2 has 1024 shading units, 64 texture mapping units, 32 raster output units, and 8 ray tracing cores. The Pro B70 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. That is exactly four times the shader count, four times the TMUs, four times the ROPs, and four times the ray tracing cores.

Memory architecture also diverges sharply. The A380E x2 uses 6 GB of GDDR6 on a 96-bit bus, producing 186.0 GB/s of bandwidth. The Pro B70 uses 32 GB of GDDR6 on a 256-bit bus, producing 608.0 GB/s. The Pro B70 also uses a PCIe 5.0 x16 interface versus the A380E x2's PCIe 4.0 x8, doubling both the electrical lanes and the bus generation.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. The display outputs differ: the A380E x2 has 8x mini-DisplayPort 2.0, while the Pro B70 has 1x HDMI 2.1a and 3x DisplayPort 2.1.

Where Each One Wins

The A380E x2 wins on physical integration and display expansion. Its single-slot design, 265 mm length, 127 mm height, and 20 mm width make it a low-profile option in the depth dimension. It draws 130 W, requires only a 300 W suggested PSU, and uses a single 6-pin power connector. For a system that must drive eight independent displays, the 8x mini-DisplayPort 2.0 outputs are unmatched by the Pro B70's four outputs. The A380E x2 is also the lighter power load, which matters in dense multi-card or small-form-factor builds.

The Pro B70 wins on every compute and memory metric. Its FP32 throughput of 22.94 TFLOPS is over five times the A380E x2's 4.096 TFLOPS. Its FP16 throughput of 45.88 TFLOPS (2:1) compares to 8.192 TFLOPS (2:1) on the A380E x2. The pixel rate of 358.4 GPixel/s versus 64.00 GPixel/s, and texture rate of 716.8 GTexel/s versus 128.0 GTexel/s, indicate the Pro B70 can fill large framebuffers and apply complex shading much faster.

The Pro B70's 32 GB memory capacity is suited for large datasets, high-resolution textures, or multi-model AI workloads, where 6 GB on the A380E x2 would be a hard constraint. The memory bandwidth advantage, 608.0 GB/s versus 186.0 GB/s, further separates the two in memory-bound tasks.

The Pro B70 also has a newer process node (5 nm versus 6 nm) and a more recent release date (2026-03-25 versus 2024-03-31). It uses a PCIe 5.0 x16 interface, which offers more host bandwidth for data transfer.

FAQ

Q: Which card has more shading units?

A: The Intel Arc Pro B70 has 4096 shading units, exactly four times the 1024 shading units on the Intel Arc A380E x2.

Q: What is the memory capacity difference?

A: The Pro B70 has 32 GB of GDDR6 on a 256-bit bus, while the A380E x2 has 6 GB of GDDR6 on a 96-bit bus. The Pro B70's bandwidth is 608.0 GB/s versus 186.0 GB/s.

Q: Do both cards support the same APIs?

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

Q: Which card has more display outputs?

A: The A380E x2 has 8x mini-DisplayPort 2.0 outputs. The Pro B70 has 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs.

Q: What is the power draw difference?

A: The A380E x2 has a TDP of 130 W with a suggested PSU of 300 W. The Pro B70 has a TDP of 230 W with a suggested PSU of 550 W.

Q: Which card is newer?

A: The Pro B70 was released on 2026-03-25, while the A380E x2 was released on 2024-03-31 and is marked as end-of-life.

Head-to-Head Benchmarks

The database contains no recorded benchmark scores for either card, so direct measured comparisons are not available. However, the specification deltas provide a clear quantitative picture of performance separation.

The most significant compute gap is in FP32 throughput. The Pro B70 delivers 22.94 TFLOPS, which is 5.6 times the A380E x2's 4.096 TFLOPS. In FP16, the Pro B70's 45.88 TFLOPS (2:1) is 5.6 times the A380E x2's 8.192 TFLOPS (2:1). This linear scaling reflects the identical fourfold increase in shading units, TMUs, and ROPs, combined with the Pro B70's higher boost clock of 2800 MHz versus 2000 MHz.

Memory bandwidth is another decisive divide. The Pro B70's 608.0 GB/s is 3.3 times the A380E x2's 186.0 GB/s. This ratio is driven by the 256-bit bus versus 96-bit, and the higher effective memory speed of 19 Gbps versus 15.5 Gbps.

The pixel rate tells a similar story. The Pro B70's 358.4 GPixel/s is 5.6 times the A380E x2's 64.00 GPixel/s. The texture rate of 716.8 GTexel/s versus 128.0 GTexel/s is also a 5.6 times difference. These consistent ratios indicate the Pro B70 scales uniformly across all rasterization stages.

The ray tracing hardware follows the same pattern: 32 RT cores versus 8, a fourfold increase. While no ray tracing benchmark scores exist in the database, the hardware count suggests a proportional scaling of ray tracing workload capability.

The Pro B70 also has a higher memory clock (2375 MHz versus 1937 MHz) and a higher base clock (2280 MHz versus 2000 MHz). The Pro B70's boost clock of 2800 MHz is 40% higher than the A380E x2's flat 2000 MHz.

The bus interface difference, PCIe 5.0 x16 versus PCIe 4.0 x8, gives the Pro B70 substantially more host bandwidth for data transfers, which matters for workloads that stream geometry or textures from system memory.

Specification Differences

The two cards differ in almost every measurable specification. The A380E x2 uses the DG2-128 chip on Xe-HPG architecture, while the Pro B70 uses the BMG-G31 chip on Xe2-HPG architecture. The process node is 6 nm versus 5 nm, both at TSMC. The A380E x2 has 7,200 million transistors on a 157 mm² die, while the Pro B70's transistor count is unknown and its die is 368 mm².

Clock speeds: the A380E x2 runs at 2000 MHz base and boost, with memory at 1937 MHz (15.5 Gbps effective). The Pro B70 runs at 2280 MHz base and 2800 MHz boost, with memory at 2375 MHz (19 Gbps effective).

Memory: 6 GB GDDR6 on a 96-bit bus with 186.0 GB/s bandwidth versus 32 GB GDDR6 on a 256-bit bus with 608.0 GB/s bandwidth.

Compute units: 1024 shading units, 64 TMUs, 32 ROPs, and 8 RT cores versus 4096 shading units, 256 TMUs, 128 ROPs, and 32 RT cores.

Throughput: FP32 of 4.096 TFLOPS versus 22.94 TFLOPS. FP16 of 8.192 TFLOPS (2:1) versus 45.88 TFLOPS (2:1). Pixel rate of 64.00 GPixel/s versus 358.4 GPixel/s. Texture rate of 128.0 GTexel/s versus 716.8 GTexel/s.

Power and physical: TDP of 130 W versus 230 W. Single-slot versus dual-slot. 1x 6-pin versus 1x 8-pin power connector. Suggested PSU of 300 W versus 550 W.

Bus interface: PCIe 4.0 x8 versus PCIe 5.0 x16.

Display outputs: 8x mini-DisplayPort 2.0 versus 1x HDMI 2.1a and 3x DisplayPort 2.1.

Dimensions: 265 mm length, 127 mm height, 20 mm width versus 267 mm length, 110 mm height, 39 mm width.

Production status: the A380E x2 is end-of-life, while the Pro B70 has no listed status. Release dates are 2024-03-31 and 2026-03-25, respectively. The A380E x2 lists a predecessor of Xe Graphics and a successor of Battlemage; the Pro B70 lists neither. The launch MSRP of the Pro B70 is 949 USD, while the A380E x2 has no launch MSRP recorded.