Intel Arc A380E vs Intel UHD Graphics 770 Mobile Comparison

Head-to-Head Benchmarks

The database records no direct head-to-head benchmark entries for the Intel Arc A380E versus the Intel UHD Graphics 770 Mobile. Both parts sit at the 50th percentile against all GPUs in the database, with average benchmark scores of zero for each. This means the comparison must be built from the recorded architectural and specification data rather than from measured frame-rate or compute deltas.

The raw compute figures show a decisive gap. The Arc A380E delivers 4.096 TFLOPS of FP32 throughput, while the UHD Graphics 770 Mobile reaches 819.2 GFLOPS. That is exactly 5 times the FP32 performance for the discrete card. In FP16, the Arc A380E produces 8.192 TFLOPS using a 2:1 ratio, against 1.638 TFLOPS for the integrated part, again a 5:1 margin.

Pixel throughput tells a similar story. The Arc A380E renders at 64.00 GPixel/s, the UHD Graphics 770 Mobile at 12.80 GPixel/s, a 5:1 ratio. Texture fill rate is 128.0 GTexel/s for the discrete card versus 25.60 GTexel/s for the integrated one, also exactly 5:1. These ratios follow directly from the shader, TMU, and ROP counts, so the relative standing is consistent across every throughput metric.

Memory bandwidth is where the gap becomes extreme. The Arc A380E uses 6 GB of GDDR6 on a 96-bit bus, delivering 186.0 GB/s. The UHD Graphics 770 Mobile relies on system shared memory with system dependent bandwidth, so no fixed number can be compared, but even the most optimistic shared-memory configs in this class fall far short of dedicated GDDR6. The discrete card also runs its memory at 1937 MHz, 15.5 Gbps effective, while the integrated GPU has no dedicated memory clock at all.

Clock speeds do not favor the discrete card in raw terms. The Arc A380E runs at a flat 2000 MHz for both base and boost, while the UHD Graphics 770 Mobile has a 300 MHz base and a 1600 MHz boost. The integrated part's boost clock is 80% of the Arc A380E's fixed clock, yet it still trails by 5:1 in every throughput category because it has only 256 shading units, 16 TMUs, and 8 ROPs versus 1024, 64, and 32 respectively.

The Arc A380E also carries 8 ray tracing cores, while the UHD Graphics 770 Mobile has none recorded. DirectX support differs as well: the Arc A380E is rated for 12 Ultimate (12_2), the integrated part for 12 (12_1). Vulkan support is identical at 1.4, and OpenGL is 4.6 for both.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Intel Arc A380E delivers 4.096 TFLOPS, which is exactly 5 times the 819.2 GFLOPS of the Intel UHD Graphics 770 Mobile.

Q: How much memory does each GPU use?

A: The Arc A380E has 6 GB of dedicated GDDR6 on a 96-bit bus with 186.0 GB/s bandwidth. The UHD Graphics 770 Mobile uses system shared memory with system dependent bandwidth.

Q: Does either GPU support ray tracing?

A: The Arc A380E has 8 ray tracing cores. The UHD Graphics 770 Mobile has no ray tracing cores recorded in the database.

Q: What are the power requirements?

A: The Arc A380E has a 75 W TDP and a suggested PSU of 250 W. The UHD Graphics 770 Mobile has a 15 W TDP and no suggested PSU because it is an integrated graphics processor.

Q: Which GPU supports a higher DirectX version?

A: The Arc A380E supports DirectX 12 Ultimate (12_2), while the UHD Graphics 770 Mobile supports DirectX 12 (12_1).

Q: What are the production statuses?

A: The Arc A380E is end-of-life, released on 2024-03-31. The UHD Graphics 770 Mobile is active, released on 2023-01-03.

Architecture Differences

The two GPUs come from different Intel graphics generations. The Arc A380E uses the DG2-128 chip built on the Xe-HPG architecture, part of the Alchemist (Arc 3) generation. The UHD Graphics 770 Mobile uses the Raptor Lake chip on Generation 12.2, listed as HD Graphics-M (Raptor Lake). The Arc A380E is fabricated by TSMC on a 6 nm process, while the UHD Graphics 770 Mobile is fabricated by Intel on a 10 nm process.

The discrete card integrates 7,200 million transistors on a 157 mm² die, giving a transistor density of 45.9M per mm². The integrated GPU has no transistor count, die size, or density recorded, as it is built into the processor package.

Shader resources differ by a factor of 4 in shading units: 1024 versus 256. TMUs are 64 versus 16, ROPs are 32 versus 8. The Arc A380E has 8 ray tracing cores, the integrated part has none. Neither GPU has tensor cores recorded.

The Arc A380E supports DirectX 12 Ultimate (12_2), which includes features like mesh shaders and variable rate shading that require the 12_2 feature level. The UHD Graphics 770 Mobile is limited to DirectX 12 (12_1), which lacks some of those newer features. Both support OpenGL 4.6 and Vulkan 1.4.

The Arc A380E's predecessor is Xe Graphics and its successor is Battlemage. The UHD Graphics 770 Mobile has no predecessor recorded and its successor is Arc Graphics-M.

Specification Differences

The most obvious difference is form factor. The Arc A380E is a single-slot, 254 mm long, 127 mm high, 20 mm wide discrete card with no power connectors required. The UHD Graphics 770 Mobile is an IGP with no physical dimensions recorded and no power connectors.

Power draw differs sharply: 75 W TDP for the Arc A380E versus 15 W for the integrated GPU. The discrete card suggests a 250 W PSU, while the integrated part has no PSU suggestion because it draws from the host system.

The bus interface separates them further. The Arc A380E uses PCIe 4.0 x8, while the UHD Graphics 770 Mobile connects via Ring Bus.

Memory configuration is entirely different. The Arc A380E has 6 GB GDDR6, 96-bit bus, 186.0 GB/s bandwidth, and a 1937 MHz memory clock (15.5 Gbps effective). The UHD Graphics 770 Mobile uses system shared memory for size, type, bus width, and bandwidth, with bandwidth listed as system dependent.

Display outputs differ. The Arc A380E has 4x DisplayPort 2.0. The UHD Graphics 770 Mobile has portable device dependent outputs.

Clock behavior is distinct. The Arc A380E runs at a constant 2000 MHz for base and boost. The UHD Graphics 770 Mobile has a 300 MHz base and 1600 MHz boost, implying aggressive power management.

The Arc A380E is end-of-life, released on 2024-03-31. The UHD Graphics 770 Mobile is active, released on 2023-01-03. Neither has a launch MSRP recorded.

Where Each One Wins

The Arc A380E wins every recorded performance metric. It has 5 times the FP32 throughput, 5 times the FP16 throughput, 5 times the pixel rate, and 5 times the texture rate. It has dedicated GDDR6 memory with 186.0 GB/s bandwidth, while the integrated GPU depends on system memory. It supports ray tracing with 8 dedicated cores, which the integrated part cannot do. It supports DirectX 12 Ultimate features that the 12_1 part lacks. It has four DisplayPort 2.0 outputs for multi-display setups.

The UHD Graphics 770 Mobile wins on power efficiency and integration. Its 15 W TDP is one-fifth of the Arc A380E's 75 W TDP, making it suitable for thin-and-light laptops where a discrete card will not fit. It has no physical dimensions, no power connectors, and no PSU requirement, so it drops into any platform with a Raptor Lake processor. It is also an active product, while the Arc A380E is end-of-life, which matters for long-term availability.

The integrated part also has a higher boost clock relative to its base clock, indicating it can scale up under thermal headroom, but that does not compensate for the 4:1 deficit in shader count.

For a desktop or workstation build with space for a 254 mm card, the Arc A380E is the clear choice on every performance axis. For a mobile platform where power draw and physical footprint are fixed, the UHD Graphics 770 Mobile is the only option that fits the IGP slot.

The Verdict

The data points to an unambiguous split. The Intel Arc A380E is a discrete GPU with 5 times the FP32 throughput, 5 times the pixel rate, 5 times the texture rate, dedicated 6 GB GDDR6 memory, ray tracing cores, and DirectX 12 Ultimate support. It draws 75 W, needs a 250 W PSU, and occupies a single slot. It is end-of-life, but it delivers desktop-class rendering in a modest power envelope.

The Intel UHD Graphics 770 Mobile is an integrated GPU with 15 W TDP, no dedicated memory, no ray tracing, and DirectX 12 (12_1) support. It delivers 819.2 GFLOPS FP32, 12.80 GPixel/s, and 25.60 GTexel/s. It is active and built into Raptor Lake processors, so it costs nothing extra and consumes minimal power.

The choice depends entirely on the platform. A builder with a PCIe 4.0 x8 slot and room for a 254 mm single-slot card should take the Arc A380E for its 186.0 GB/s bandwidth, 8 ray tracing cores, and 4x DisplayPort 2.0 outputs. A laptop or compact system builder locked to an IGP should accept the UHD Graphics 770 Mobile's system shared memory and 12_1 feature level, since no discrete option exists in that form factor.

The 50th percentile ranking for both GPUs against all GPUs in the database indicates neither is an outlier on the performance distribution. The Arc A380E achieves that rank with dedicated hardware, while the UHD Graphics 770 Mobile achieves it with integrated resources. The recorded data shows no benchmark scores for either part, so the comparison rests on the architecture and specification fields. Those fields consistently favor the discrete card by a factor of 5 across all throughput metrics, with the integrated part countering only in power draw and physical integration.