Intel Arc Pro B390 vs Lisuan Tech LX PRO Comparison

Where Each One Wins

The Intel Arc Pro B390 and Lisuan Tech LX PRO occupy opposite ends of the graphics spectrum, and the recorded data makes their respective territories clear. The Intel part is an integrated graphics processor (IGP) built for Panther Lake mobile platforms, drawing just 80 W and relying on system memory. Its entire design philosophy centers on efficiency and portability. The Lisuan Tech LX PRO, by contrast, is a 225 W dual-slot add-in board with 24 GB of dedicated GDDR6 memory, a 192-bit bus, and a PCIe 4.0 x16 interface. It is a discrete, high-throughput solution aimed at workloads that demand sustained memory bandwidth and raw compute throughput.

In terms of raw shading capacity, the LX PRO holds a decisive advantage. It packs 6144 shading units, 192 texture mapping units, and 96 render output units, quadrupling the Intel part's 1536 shaders, 48 TMUs, and 24 ROPs. This translates directly into compute throughput: the LX PRO delivers 24.58 TFLOPS of FP32 performance versus 7.680 TFLOPS for the Arc Pro B390. That is a 3.2x margin in single-precision floating-point work. For FP16 workloads, the LX PRO reaches 49.15 TFLOPS, while the Intel part manages 15.36 TFLOPS, again a 3.2x gap. The LX PRO also leads in pixel and texture fill rates, posting 192.0 GPixel/s and 384.0 GTexel/s against the B390's 60.00 GPixel/s and 120.0 GTexel/s.

The Intel Arc Pro B390, however, wins on integration and power economy. Its 80 W TDP is less than half of the LX PRO's 225 W, and it requires no external power connectors, no suggested PSU rating, and no dedicated slot beyond the motherboard's integrated graphics path. It runs from system-shared memory, which eliminates the need for a discrete memory pool. For portable devices, the display outputs are described as "Portable Device Dependent," meaning the B390 adapts to whatever panel or output the host system provides. The LX PRO, in contrast, is a fixed 248 mm long, 118 mm tall, and 48 mm wide card that needs a 16-pin power connector and a 550 W suggested power supply.

The benchmark data itself shows no wins for either side, as the head-to-head benchmark table is empty and both parts sit at the 50th percentile among all GPUs with an average benchmark score of zero. That does not erase the architectural and specification gaps; it simply indicates that no comparative performance samples have been recorded in the database yet. What the data does establish is a clear use-case split: the Arc Pro B390 is designed for thin-and-light systems where power draw and physical footprint are the primary constraints, while the LX PRO targets desktops or workstations where absolute throughput and memory capacity trump efficiency.

Architecture Differences

The two GPUs come from entirely different silicon lineages. The Intel Arc Pro B390 is built on Panther Lake, using the Xe3-LPG architecture, and is manufactured on Intel's 3 nm process node at Intel's own foundry. It belongs to the Arc Graphics-WM (Panther Lake) generation, with a base clock of 300 MHz and a boost clock of 2500 MHz. Its predecessor is listed as HD Graphics-WM. The LX PRO, on the other hand, uses the 7G105 chip with a TrueGPU architecture, belongs to the 7G100 generation, and is fabricated on TSMC's 6 nm process. No base or boost clocks are recorded for the LX PRO, only a memory clock of 2250 MHz with 18 Gbps effective data rate.

Memory architecture diverges completely. The B390 uses system-shared memory, meaning its memory size, type, and bus width are all "System Shared," and bandwidth is "System Dependent." The LX PRO comes with 24 GB of GDDR6 memory on a 192-bit bus, delivering a fixed 432.0 GB/s of bandwidth. That is a fundamental difference: the B390's performance scales with the host system's memory configuration, while the LX PRO's memory subsystem is self-contained and predictable.

Ray tracing support also differs. The B390 includes 12 dedicated ray tracing cores, while the LX PRO lists no RT cores at all. In terms of API support, both cards offer DirectX 12 Ultimate (12_2) and OpenGL 4.6. The B390 supports Vulkan 1.4, while the LX PRO supports Vulkan 1.3. The B390 is an IGP with no bus interface beyond the integrated path, whereas the LX PRO uses PCIe 4.0 x16. Power delivery reflects the same split: the B390 draws 80 W with no power connectors, while the LX PRO draws 225 W through a single 16-pin connector.

The production status for both is "Active," but release dates differ. The Intel Arc Pro B390 entered the database on January 26, 2026, and the Lisuan Tech LX PRO followed on March 16, 2026. Neither part lists a predecessor for the LX PRO, while the B390's predecessor is the HD Graphics-WM. No transistor counts, die sizes, or transistor densities are recorded for either GPU, so those comparisons remain outside the available data.

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark results between these two GPUs. The head-to-head benchmark table is empty, and both parts show zero wins in direct comparisons. That absence of data means no measured frame-rate, compute, or synthetic scores can be cited. What can be analyzed instead is the theoretical throughput implied by the specification sheets, which show a clear and consistent hierarchy.

The largest single-number gap is in FP32 compute. The LX PRO's 24.58 TFLOPS is 3.2 times the B390's 7.680 TFLOPS. In absolute terms, that is a 16.90 TFLOPS difference. For FP16, the LX PRO's 49.15 TFLOPS exceeds the B390's 15.36 TFLOPS by 33.79 TFLOPS, again a 3.2x ratio. Pixel fill rate tells a similar story: 192.0 GPixel/s versus 60.00 GPixel/s, a 132.0 GPixel/s gap. Texture fill rate is 384.0 GTexel/s versus 120.0 GTexel/s, a 264.0 GTexel/s margin.

Memory bandwidth is perhaps the most consequential difference for real-world workloads. The LX PRO's 432.0 GB/s is a fixed, dedicated figure. The B390's bandwidth is "System Dependent," so no direct comparison is possible, but the B390's architecture means it shares memory with the CPU, which typically imposes latency and bandwidth penalties versus dedicated GDDR6. In memory-heavy applications such as large dataset processing or high-resolution texture streaming, the LX PRO's dedicated pool and 192-bit bus give it a structural advantage that no system-shared configuration can match.

The B390 does hold one measurable edge beyond power draw: its 12 RT cores provide hardware-accelerated ray tracing, a feature the LX PRO lacks entirely. For DirectX 12 Ultimate workloads that rely on ray-traced effects, the B390 has a capability the LX PRO cannot offer. Additionally, the B390 supports Vulkan 1.4, while the LX PRO is limited to Vulkan 1.3, which may matter for applications that adopt newer Vulkan extensions.

FAQ

Q: Which GPU has more shading units?

A: The Lisuan Tech LX PRO has 6144 shading units, while the Intel Arc Pro B390 has 1536 shading units. That is a 4x difference in raw shader count.

Q: Does the Intel Arc Pro B390 have dedicated memory?

A: No. The B390 uses system-shared memory for both size and type, with bandwidth listed as "System Dependent." The LX PRO, by contrast, has 24 GB of dedicated GDDR6 memory on a 192-bit bus with 432.0 GB/s of bandwidth.

Q: What is the power consumption difference?

A: The Intel Arc Pro B390 has a TDP of 80 W and requires no power connectors. The Lisuan Tech LX PRO has a TDP of 225 W and requires a single 16-pin power connector, with a suggested PSU rating of 550 W.

Q: Do both GPUs support ray tracing?

A: No. The Intel Arc Pro B390 includes 12 ray tracing cores. The Lisuan Tech LX PRO lists no ray tracing cores in its specifications.

Q: Which GPU supports a newer Vulkan version?

A: The Intel Arc Pro B390 supports Vulkan 1.4, while the Lisuan Tech LX PRO supports Vulkan 1.3. Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6.

Q: What are the physical form factor differences?

A: The Intel Arc Pro B390 is an IGP with no slot width, no power connectors, and display outputs described as "Portable Device Dependent." The Lisuan Tech LX PRO is a dual-slot card measuring 248 mm in length, 118 mm in height, and 48 mm in width, with four DisplayPort 1.4a outputs.

Specification Differences

The two GPUs differ across nearly every recorded specification field. The Intel Arc Pro B390 uses a 3 nm process at Intel's foundry, while the Lisuan Tech LX PRO uses a 6 nm process at TSMC. The B390's architecture is Xe3-LPG on the Panther Lake chip, while the LX PRO uses TrueGPU on the 7G105 chip. Clock speeds are only recorded for the B390 (300 MHz base, 2500 MHz boost); the LX PRO has no base or boost clocks listed, but its memory runs at 2250 MHz with 18 Gbps effective.

Memory configuration is entirely different: the B390 uses system-shared memory with no fixed size, type, bus width, or bandwidth, while the LX PRO has 24 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. Shading units, TMUs, and ROPs are all 4x higher on the LX PRO (6144 vs 1536, 192 vs 48, 96 vs 24). The B390 has 12 RT cores; the LX PRO has none. FP32 and FP16 throughput are 3.2x higher on the LX PRO (24.58 vs 7.680 TFLOPS, and 49.15 vs 15.36 TFLOPS, respectively). Pixel and texture fill rates follow the same pattern, with the LX PRO at 192.0 GPixel/s and 384.0 GTexel/s versus the B390's 60.00 GPixel/s and 120.0 GTexel/s.

Power and physical specs diverge sharply. The B390 is an 80 W IGP with no power connectors, no suggested PSU, and no slot width. The LX PRO is a 225 W dual-slot card with a 16-pin connector, a 550 W suggested PSU, and dimensions of 248 mm by 118 mm by 48 mm. The B390 uses an integrated bus interface, while the LX PRO uses PCIe 4.0 x16. Display outputs are "Portable Device Dependent" on the B390 and four DisplayPort 1.4a ports on the LX PRO. Vulkan support differs (1.4 on the B390, 1.3 on the LX PRO), while DirectX and OpenGL versions match. Release dates are January 26, 2026, for the B390 and March 16, 2026, for the LX PRO.