Intel Arc B770 vs Intel Arc Graphics 64EU Comparison

Where Each One Wins

The Intel Arc B770 is a discrete add-in board built on the Battlemage architecture, while the Intel Arc Graphics 64EU is an integrated graphics processor embedded in the Arrow Lake-S chip. The data shows a fundamental separation in their intended use cases, and the benchmark records confirm they occupy different performance tiers entirely.

For the Arc B770, the design targets high-throughput rendering workloads. It uses a 256-bit memory interface with dedicated GDDR6 memory, which provides 512.0 GB/s of bandwidth. This dedicated memory path allows the GPU to sustain heavy texture loads and large frame buffers without contending with the CPU for system memory access. The pixel rate of 307.2 GPixel/s and texture rate of 614.4 GTexel/s indicate it can drive high-resolution displays and complex shading workloads. Its 4096 shading units, 256 texture mapping units, and 128 raster output units place it in a class where modern 3D applications can run with substantial detail settings.

The Arc Graphics 64EU, by contrast, is a low-power integrated solution with a 65 W TDP. It uses system-shared memory, meaning its bandwidth is system dependent and its memory bus width is system dependent as well. Its 512 shading units, 32 TMUs, and 16 ROPs are a fraction of the discrete part's resources. The recorded benchmark data shows it scores 733 in the 3DMark Steel Nomad DX12 test, which places it in the 3rd percentile of all GPUs in the database. Its nearest rivals include the Intel Arc Graphics 32EU and 24EU, both scoring 733 with a 0% delta, and the AMD Radeon HD 6470M at 723 (1.4% ahead), and the NVIDIA GeForce GT 415M at 751 (the 64EU trails by 2.4%).

The wins are clear. The Arc B770 wins on raw compute throughput, memory bandwidth, pixel fill, and texture fill. The Arc Graphics 64EU wins on power consumption, with a 65 W TDP versus 225 W, and on physical footprint, being an integrated processor rather than a dual-slot card. For gaming, rendering, or any GPU-accelerated workload that requires sustained high frame rates, the B770 is the only viable option between these two. For basic desktop acceleration, media playback, and light 2D workloads, the 64EU suffices.

Architecture Differences

The two GPUs come from different architectural families and different manufacturing processes. The Arc B770 uses the Xe2-HPG architecture on a 5 nm TSMC process, with the BMG-G31 chip. The die size is 368 mm². The Arc Graphics 64EU uses the Xe-LPG architecture on a 3 nm TSMC process, with the Arrow Lake-S chip, and a die size of 243 mm². The 64EU's chip contains 17,800 million transistors with a transistor density of 73.3M per mm², while the B770's transistor count is unknown in the database.

Clock speeds differ substantially. The B770 runs at a base clock of 2100 MHz and a boost clock of 2400 MHz. The 64EU runs at a base clock of 300 MHz and a boost clock of 1900 MHz. Even at boost, the integrated part operates below the discrete card's base clock, which directly affects all throughput calculations.

Memory architecture is the most significant divergence. The B770 has 16 GB of GDDR6 memory on a 256-bit bus, with a memory clock of 2000 MHz (16 Gbps effective) and a bandwidth of 512.0 GB/s. The 64EU uses system shared memory, with system dependent bandwidth, and no dedicated VRAM. This means the integrated GPU must share the same memory channels as the CPU, which creates a bottleneck under heavy graphics load.

Ray tracing hardware also differs. The B770 includes 32 dedicated RT cores, while the 64EU lists no RT cores in the database. The B770 also supports PCIe 4.0 x16 as its bus interface, while the 64EU uses a Ring Bus connection, which is typical for integrated graphics. Display outputs differ as well: the B770 provides 1x HDMI 2.1a and 3x DisplayPort 2.1, while the 64EU's outputs are motherboard dependent.

Compute throughput numbers reflect the architectural gap. The B770 delivers 19.66 TFLOPS FP32 and 39.32 TFLOPS FP16 (2:1 ratio). The 64EU delivers 1.946 TFLOPS FP32 and 3.891 TFLOPS FP16 (2:1 ratio). The B770 is roughly 10 times higher in both metrics. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical.

The B770 uses a dual-slot form factor with 1x 6-pin and 1x 8-pin power connectors, and a suggested PSU of 550 W. The 64EU is an IGP with no power connectors and no suggested PSU, drawing power from the motherboard. The B770 has a TDP of 225 W, while the 64EU has a TDP of 65 W. The B770's release date is listed as 2025-12-31, while the 64EU's release date is 2024-10-23.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two GPUs, and the wins count for each is zero. However, the available benchmark data from the 64EU and the compute specifications of the B770 allow for a comparison based on recorded measurements and rated throughput.

The only recorded benchmark score in the database is the 64EU's 733 in 3DMark Steel Nomad DX12. The B770 has no benchmark scores listed, and its average benchmark score is 0. Its percentile versus all GPUs is 50, which places it at the median of the database, whereas the 64EU sits at the 3rd percentile.

For the 64EU, the nearest rival data provides context. It scores identically to the Intel Arc Graphics 32EU and 24EU (both 733, 0% delta). It is 1.4% ahead of the AMD Radeon HD 6470M (723) and 2.4% behind the NVIDIA GeForce GT 415M (751). These are all low-end or legacy parts, confirming the 64EU's position at the entry level.

The B770's compute specifications indicate its performance class. Its pixel rate of 307.2 GPixel/s is exactly 10.1 times the 64EU's 30.40 GPixel/s. Its texture rate of 614.4 GTexel/s is exactly 10.1 times the 64EU's 60.80 GTexel/s. Its FP32 throughput of 19.66 TFLOPS is 10.1 times the 64EU's 1.946 TFLOPS. These consistent ratios suggest the B770 would deliver roughly an order of magnitude higher frame rates in GPU-bound scenarios, assuming no other bottlenecks.

Memory bandwidth amplifies the gap further. The B770 has 512.0 GB/s of dedicated bandwidth, while the 64EU's bandwidth is system dependent and shared with the CPU. In practice, the integrated part will see far lower effective bandwidth, particularly in memory-heavy workloads like high-resolution textures or ray tracing.

The RT core count also matters. The B770's 32 RT cores enable hardware-accelerated ray tracing. The 64EU has none listed, so any ray tracing workload would run in software or be unsupported, which is a categorical difference rather than a numerical one.

The Verdict

The data supports a clear separation of roles. The Intel Arc B770 is designed for users who need discrete GPU performance: high-resolution gaming, 3D rendering, or compute workloads that benefit from 4096 shading units and 512.0 GB/s of bandwidth. Its 50th percentile standing in the database, combined with its 225 W TDP and dual-slot cooler, indicates it is a mid-to-high-tier part that requires a dedicated power supply of at least 550 W and a PCIe 4.0 x16 slot.

The Intel Arc Graphics 64EU is an integrated solution for systems where power efficiency and space matter more than raw performance. Its 3rd percentile ranking and 733 Steel Nomad score place it firmly in entry-level territory, suitable for office tasks, video playback, and very light gaming. Its 65 W TDP means it adds no extra power draw beyond the host CPU, and it requires no additional power connectors or expansion slot.

For anyone building a system for modern 3D games or GPU-accelerated creative work, the B770 is the only choice between the two, and the 10.1x advantage in pixel rate, texture rate, and FP32 throughput makes the decision straightforward. For a compact desktop or a system where the GPU must not exceed 65 W, the 64EU is the only option that fits.

The release dates also matter. The 64EU was released on 2024-10-23 and is marked as Active in production status. The B770 has a release date of 2025-12-31, which is later in the database's timeline. The B770's predecessor is listed as Alchemist, while the 64EU's predecessor is HD Graphics, showing they come from different product lineages.

There is no scenario where the 64EU outperforms the B770 in any measured or rated metric. The B770 wins on every compute specification, every memory specification, and every feature that affects graphics performance. The 64EU wins only on power draw and physical footprint.

FAQ

Q: What is the performance difference in raw compute throughput?

A: The Arc B770 delivers 19.66 TFLOPS FP32, which is 10.1 times the 64EU's 1.946 TFLOPS. The FP16 figures follow the same ratio: 39.32 TFLOPS versus 3.891 TFLOPS.

Q: How does memory bandwidth compare between the two?

A: The B770 has 512.0 GB/s of dedicated GDDR6 bandwidth on a 256-bit bus. The 64EU uses system shared memory with system dependent bandwidth, so no fixed bandwidth figure is recorded.

Q: Does the 64EU support ray tracing?

A: The database lists no RT cores for the 64EU. The B770 includes 32 RT cores, enabling hardware-accelerated ray tracing.

Q: What are the power requirements for each GPU?

A: The B770 has a TDP of 225 W, uses a dual-slot cooler, requires 1x 6-pin and 1x 8-pin power connectors, and a suggested PSU of 550 W. The 64EU has a TDP of 65 W, is an IGP with no power connectors, and no suggested PSU.

Q: How does the 64EU compare to its nearest rivals in benchmark scores?

A: The 64EU scores 733 in 3DMark Steel Nomad DX12. It matches the Intel Arc Graphics 32EU and 24EU (both 733, 0% delta), is 1.4% ahead of the AMD Radeon HD 6470M (723), and is 2.4% behind the NVIDIA GeForce GT 415M (751).

Q: What are the process nodes and die sizes for each chip?

A: The B770 uses a 5 nm TSMC process with a 368 mm² die (BMG-G31 chip). The 64EU uses a 3 nm TSMC process with a 243 mm² die (Arrow Lake-S chip) containing 17,800 million transistors.