Intel Arc 130V Mobile vs Intel Arc B770 Comparison

# Intel Arc 130V Mobile vs Intel Arc B770

The Intel Arc 130V Mobile and Intel Arc B770 represent two very different approaches to graphics hardware within Intel's Arc family. The 130V Mobile is an integrated graphics processor embedded in the Lunar Lake mobile chip, built on a 3 nm TSMC process with the Xe2-LPG architecture. The Arc B770 is a discrete, dual-slot desktop graphics card based on the BMG-G31 chip, using the Xe2-HPG architecture on a 5 nm TSMC process. The recorded data shows two products with nearly identical API support but fundamentally different performance envelopes, power requirements, and physical designs.

Where Each One Wins

The Intel Arc 130V Mobile wins in scenarios where power efficiency and physical integration are the primary constraints. Its 37 W TDP, IGP slot width, and system-shared memory make it suitable for thin-and-light laptops where a discrete GPU cannot fit. The 130V Mobile uses system-shared memory with bandwidth described as system dependent, meaning its performance scales with the host platform's memory subsystem rather than a dedicated VRAM pool. The architecture is Xe2-LPG, the low-power variant of Intel's Xe2 design, and the chip itself measures 172 mm² on a 3 nm TSMC process. For portable devices, the display outputs are portable device dependent, and the bus interface is IGP, which eliminates any need for external power connectors or a separate power supply recommendation.

The Intel Arc B770 wins in scenarios demanding raw throughput and dedicated graphics memory. Its 16 GB of GDDR6 memory on a 256 bit bus delivers 512.0 GB/s of bandwidth, a figure that dwarfs the system-dependent bandwidth of the 130V Mobile. The B770's 225 W TDP, dual-slot cooler, and 1x 6-pin plus 1x 8-pin power connectors require a desktop chassis with a 550 W suggested power supply. The bus interface is PCIe 4.0 x16, and display outputs include 1x HDMI 2.1a and 3x DisplayPort 2.1, giving it a fixed set of connectivity options rather than portable device dependent outputs. The B770 also carries a much larger die at 368 mm², more than double the size of the 130V Mobile's chip.

Benchmark results indicate a clear split: the 130V Mobile is positioned for integrated, low-power mobile computing, while the B770 is positioned for desktop performance with dedicated memory. The data shows no overlap in their intended use cases.

Architecture Differences

The two GPUs share Intel's Xe2 graphics architecture but implement it in different variants. The 130V Mobile uses Xe2-LPG, the low-power graphics variant, while the B770 uses Xe2-HPG, the high-performance graphics variant. This architectural split is reflected in nearly every physical and computational specification.

The process nodes differ significantly. The 130V Mobile is fabricated on a 3 nm TSMC process, while the B770 uses a 5 nm TSMC process. Despite the smaller process node, the 130V Mobile's die measures 172 mm², whereas the B770's die measures 368 mm². The transistor counts for both are listed as unknown in the database, so a direct transistor-density comparison is not possible from recorded data.

Compute resources show a wide gap. The 130V Mobile has 896 shading units, 56 texture mapping units, 28 render output units, and 7 ray tracing cores. The B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. In every category, the B770 has more than four times the resources of the 130V Mobile, with the ray tracing core count being particularly lopsided at 32 versus 7.

Clock speeds tell a different story. The 130V Mobile has a base clock of 300 MHz and a boost clock of 1850 MHz. The B770 has a base clock of 2100 MHz and a boost clock of 2400 MHz. While the B770's clocks are higher, the gap is far smaller than the gap in compute units, which means the B770's performance advantage comes primarily from having vastly more hardware rather than dramatically higher frequencies.

Memory architecture is one of the largest divergences. The 130V Mobile uses system-shared memory with a system-shared bus width and system-dependent bandwidth. The B770 uses 16 GB of dedicated GDDR6 memory on a 256 bit bus with 512.0 GB/s of bandwidth, running at 2000 MHz with 16 Gbps effective speed. This dedicated memory arrangement gives the B770 predictable, high-bandwidth performance that the 130V Mobile cannot match.

The production statuses also differ. The 130V Mobile is listed as active, with a release date of September 2024 and a predecessor of HD Graphics-M. The B770 has no production status recorded, a release date of December 2025, and a predecessor of Alchemist. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature support is identical.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between these two products. The wins counters show zero for both sides, and the head-to-head benchmark array is empty. However, the recorded specifications allow for a computed comparison of theoretical throughput limits.

The pixel rate of the B770 is 307.2 GPixel/s, which is 5.93 times the 51.80 GPixel/s of the 130V Mobile. In practical terms, the B770 can drive fill-rate-heavy workloads at nearly six times the speed of the integrated part. The texture rate shows a similar ratio: 614.4 GTexel/s versus 103.6 GTexel/s, a factor of 5.93 as well.

The FP32 compute throughput is 19.66 TFLOPS for the B770 versus 3.315 TFLOPS for the 130V Mobile, a ratio of 5.93. The FP16 figures are 39.32 TFLOPS for the B770 and 6.630 TFLOPS for the 130V Mobile, again a ratio of 5.93. This consistency across pixel rate, texture rate, FP32, and FP16 is a direct consequence of the fixed ratio between shading units, TMUs, and ROPs in both designs.

Memory bandwidth is the most extreme difference. The B770's 512.0 GB/s is fixed and dedicated, while the 130V Mobile's bandwidth is system dependent, meaning the database lists no fixed number for comparison. The B770's memory system is also much larger at 16 GB, which allows larger textures, geometry buffers, and render targets to reside entirely in VRAM.

Power consumption shows a 6.08x difference: 225 W for the B770 versus 37 W for the 130V Mobile. The B770's 225 W TDP is within the range of typical desktop discrete GPUs, while the 37 W TDP of the 130V Mobile is in line with integrated graphics that share thermal and power budgets with a CPU.

Both products sit at the 50th percentile against all GPUs in the database, with average benchmark scores of zero recorded. This places them in the same percentile tier despite the massive specification gap, which may reflect the database's treatment of products without recorded benchmark runs.

FAQ

Q: Which GPU has more shading units?

A: The Intel Arc B770 has 4096 shading units, while the Intel Arc 130V Mobile has 896. The B770 has 4.57 times the shading units of the 130V Mobile.

Q: What memory configurations do these GPUs use?

A: The Arc B770 uses 16 GB of GDDR6 memory on a 256 bit bus with 512.0 GB/s bandwidth. The Arc 130V Mobile uses system-shared memory with a system-shared bus width and system-dependent bandwidth.

Q: Are these GPUs built on the same manufacturing process?

A: No. The Arc 130V Mobile is built on a 3 nm TSMC process with a 172 mm² die. The Arc B770 is built on a 5 nm TSMC process with a 368 mm² die.

Q: What are the power requirements for each GPU?

A: The Arc 130V Mobile has a 37 W TDP and uses an IGP slot width with no power connectors. The Arc B770 has a 225 W TDP, uses a dual-slot design with 1x 6-pin and 1x 8-pin power connectors, and has a suggested power supply of 550 W.

Q: Do both GPUs support the same APIs?

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

Q: Which GPU has more ray tracing cores?

A: The Arc B770 has 32 ray tracing cores, while the Arc 130V Mobile has 7. The B770 has 4.57 times the ray tracing cores of the 130V Mobile.

The Verdict

The recorded data supports a straightforward conclusion. The Intel Arc B770 is the substantially more capable graphics processor in every measured computational category. Its 4096 shading units, 32 ray tracing cores, 16 GB of GDDR6 memory with 512.0 GB/s bandwidth, and 19.66 TFLOPS of FP32 throughput place it in a completely different performance class than the Arc 130V Mobile. The B770's 307.2 GPixel/s pixel rate and 614.4 GTexel/s texture rate are each roughly 5.93 times the corresponding figures for the 130V Mobile, and its FP32 and FP16 throughputs show the same ratio.

The Arc 130V Mobile is not without its own strengths. Its 37 W TDP makes it suitable for integrated mobile graphics, and its 3 nm TSMC process with a 172 mm² die represents a compact, energy-conscious design. The system-shared memory architecture eliminates the need for dedicated VRAM, and the IGP bus interface requires no external power connections. For portable devices, the 130V Mobile is the only option of the two, as the B770's dual-slot cooler, 225 W TDP, and PCIe 4.0 x16 interface demand a desktop platform.

The architecture split is clear: Xe2-LPG for the 130V Mobile targets low-power integrated use, while Xe2-HPG for the B770 targets high-performance discrete use. Both share the same API feature set, so software compatibility is not a differentiator. The B770's predecessor is Alchemist, indicating a direct lineage in Intel's discrete GPU line, while the 130V Mobile's predecessor is HD Graphics-M, showing a different evolutionary path.

The data indicates that the B770 is the choice for applications that need dedicated high-bandwidth memory and maximum compute throughput. The 130V Mobile is the choice for systems where power draw, physical space, and system integration take priority over raw performance. The 50th percentile ranking for both products in the database, combined with zero recorded average benchmark scores, means the specification sheet is the only available basis for comparison. Based on those specifications, the B770 delivers roughly 5.93 times the compute throughput of the 130V Mobile at 6.08 times the power draw.