Intel Arc B390 vs Lisuan Tech LX PRO Comparison

Intel Arc B390 is an integrated graphics solution built for mobile platforms, while Lisuan Tech LX PRO is a discrete, dual-slot add-in card with a substantial 24 GB memory pool. The recorded data shows a fundamental split: the Arc B390 has a single 3DMark Steel Nomad DX12 score of 1482, placing it at the 9th percentile of all GPUs, while the LX PRO has no recorded benchmark scores and sits at the 50th percentile. This places the two products in different performance conversations entirely.

Where Each One Wins

The Arc B390 wins in the category of measured benchmark evidence. It has a recorded 3DMark Steel Nomad DX12 result of 1482, which puts it narrowly ahead of its nearest rivals: the NVIDIA GeForce GT 520MX scores 1463, the GeForce 800M scores 1460, the GeForce GT 625 OEM scores 1446, and the GeForce GT 710 scores 1443. The delta percentages are small, ranging from 1.3% over the GT 520MX to 2.7% over the GT 710. This means the Arc B390 lands in a very specific performance bracket, one populated by older entry-level discrete GPUs, and it edges them all out in the one test where data exists.

The LX PRO wins in raw specification counts across nearly every computational resource. It uses 6144 shading units, 192 texture mapping units, and 96 raster operation pipelines. The Arc B390 uses 1536 shading units, 48 TMUs, and 24 ROPs. In FP32 compute, the LX PRO delivers 24.58 TFLOPS versus 7.680 TFLOPS for the Arc B390. The LX PRO also outputs 49.15 TFLOPS FP16, while the Arc B390 outputs 15.36 TFLOPS FP16. Pixel throughput favors the LX PRO at 192.0 GPixel/s versus 60.00 GPixel/s, and texture throughput favors it at 384.0 GTexel/s versus 120.0 GTexel/s. The LX PRO has no nearest rivals listed in the database, so its competitive position is unmeasured, whereas the Arc B390 has a clear rival cluster.

Architecture Differences

The Arc B390 uses Intel's Panther Lake chip with the Xe3-LPG architecture and belongs to the Arc Graphics-M generation. It is fabricated on a 3 nm process at Intel. The LX PRO uses a 7G105 chip with the TrueGPU architecture from the 7G100 generation, fabricated on a 6 nm process at TSMC. The process nodes differ, 3 nm versus 6 nm, and the foundries differ, Intel versus TSMC.

Memory architecture is the most pronounced difference. The Arc B390 uses system shared memory, with its memory size, type, and bus width all listed as system shared, and bandwidth listed as system dependent. The LX PRO uses 24 GB of GDDR6 memory on a 192-bit bus, delivering 432.0 GB/s of bandwidth. The LX PRO memory clock is 2250 MHz with 18 Gbps effective data rate. The Arc B390 has no dedicated memory clock because it relies on the host system.

The LX PRO has no ray tracing cores listed, while the Arc B390 has 12 ray tracing cores. Neither product lists tensor cores. The Arc B390 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The LX PRO also supports DirectX 12 Ultimate (12_2) and OpenGL 4.6, but only Vulkan 1.3. The LX PRO has a 225 W TDP, a dual-slot cooler, one 16-pin power connector, and a suggested PSU rating of 550 W. The Arc B390 has an 80 W TDP, is an IGP with no power connectors, and requires no separate PSU recommendation.

The Verdict

The data indicates that these are not competing products in the conventional sense. The Arc B390 is an integrated GPU with a measured 3DMark Steel Nomad DX12 score of 1482 and a 9th percentile ranking. Its nearest rivals are low-end discrete GPUs from several generations ago, and it beats them by margins of 1.3% to 2.7%. Anyone selecting the Arc B390 is choosing a platform-integrated solution for a thin, portable device, since its display outputs are portable device dependent and its slot width is IGP.

The LX PRO is a discrete card with a 248 mm length, 118 mm height, and 48 mm width, requiring a dual-slot space and a 16-pin power connector. It has no benchmark scores in the database, so its actual performance remains unverified. Its 50th percentile ranking appears without any supporting average score, which differs from the Arc B390's percentile that is backed by a specific result. The LX PRO specification sheet suggests a much higher compute ceiling, but the absence of recorded results means the database cannot confirm where it lands against other GPUs.

The practical reading of the data: the Arc B390 is a known quantity at the low end, and the LX PRO is an unmeasured high-specification card. Users who need a verified, if modest, benchmark result can rely on the Arc B390. Users who prioritize raw memory capacity, 24 GB GDDR6, and high FP32 throughput on paper would look at the LX PRO, but they should be aware that no measured performance data exists for it yet.

FAQ

Q: Which GPU has a higher FP32 compute rating?

A: The Lisuan Tech LX PRO is rated at 24.58 TFLOPS FP32, while the Intel Arc B390 is rated at 7.680 TFLOPS FP32.

Q: How much memory does each GPU use?

A: The Lisuan Tech LX PRO has 24 GB of GDDR6 memory on a 192-bit bus with 432.0 GB/s bandwidth. The Intel Arc B390 uses system shared memory, with its bandwidth listed as system dependent.

Q: What is the Intel Arc B390's closest rival in the database?

A: The closest rival is the NVIDIA GeForce GT 520MX, which scores 1463 in 3DMark Steel Nomad DX12, putting the Arc B390 1.3% ahead with its 1482 score.

Q: Does the Lisuan Tech LX PRO support Vulkan 1.4?

A: No. The LX PRO supports Vulkan 1.3, while the Intel Arc B390 supports Vulkan 1.4. Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6.

Q: What are the power requirements for the Lisuan Tech LX PRO?

A: The LX PRO has a 225 W TDP, uses a 16-pin power connector, and has a suggested PSU rating of 550 W.

Q: Does the Intel Arc B390 have ray tracing cores?

A: Yes, the Arc B390 has 12 ray tracing cores. The Lisuan Tech LX PRO has no ray tracing cores listed in the database.

Head-to-Head Benchmarks

There are no direct head-to-head benchmark entries in the database, so the comparison must rely on the single recorded score for the Arc B390 and the specification sheet for the LX PRO. The Arc B390's 3DMark Steel Nomad DX12 result of 1482 represents its entire measured output. That score places it above the GeForce GT 520MX by 1.3%, above the GeForce 800M by 1.5%, above the GeForce GT 625 OEM by 2.5%, and above the GeForce GT 710 by 2.7%. These are narrow margins, indicating that the Arc B390 sits at the very bottom of the discrete GPU performance scale, despite being a modern 3 nm part.

The LX PRO has no recorded scores, so it cannot be placed in a head-to-head result. Its specification sheet, however, provides the largest wins in this comparison. The LX PRO's FP32 output of 24.58 TFLOPS is roughly 3.2 times the Arc B390's 7.680 TFLOPS. Its texture rate of 384.0 GTexel/s is 3.2 times the Arc B390's 120.0 GTexel/s. Its pixel rate of 192.0 GPixel/s is 3.2 times the Arc B390's 60.00 GPixel/s. The memory bandwidth difference is even more categorical: 432.0 GB/s dedicated GDDR6 versus system dependent shared memory.

The LX PRO also wins on raw resource counts. It has 6144 shading units, 192 TMUs, and 96 ROPs, versus 1536 shading units, 48 TMUs, and 24 ROPs on the Arc B390. Those are exact 4x ratios across the board. The LX PRO has no ray tracing cores listed, while the Arc B390 has 12, which is the one area where the Intel part holds a feature advantage. The LX PRO's physical footprint, 248 mm long and dual-slot, reflects its discrete nature, while the Arc B390 is an IGP with no slot width beyond the integrated package.

Specification Differences

The two GPUs differ in nearly every specification field where data exists. The Arc B390 uses a 3 nm Intel process with the Xe3-LPG architecture, while the LX PRO uses a 6 nm TSMC process with the TrueGPU architecture. The Arc B390 has a base clock of 300 MHz and a boost clock of 2500 MHz, while the LX PRO has no base or boost clocks listed. Memory clocks differ: the LX PRO runs at 2250 MHz with 18 Gbps effective, while the Arc B390 relies on system shared memory.

Compute resources differ by a factor of four: 6144 shading units versus 1536, 192 TMUs versus 48, and 96 ROPs versus 24. The FP32 rating is 24.58 TFLOPS versus 7.680 TFLOPS, and FP16 is 49.15 TFLOPS versus 15.36 TFLOPS. The LX PRO has 24 GB GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth, while the Arc B390 has system shared memory with system dependent bandwidth. The LX PRO has 12 ray tracing cores absent, while the Arc B390 has 12 present.

Power and physical specifications differ sharply. The LX PRO has a 225 W TDP, dual-slot width, a 16-pin power connector, and a suggested PSU of 550 W. The Arc B390 has an 80 W TDP, IGP slot width, and no power connectors. The LX PRO uses a PCIe 4.0 x16 interface and has four DisplayPort 1.4a outputs. The Arc B390 uses an IGP bus interface and its display outputs are portable device dependent. The LX PRO measures 248 mm by 118 mm by 48 mm, while the Arc B390 has no listed dimensions. Vulkan support differs: the Arc B390 supports 1.4, and the LX PRO supports 1.3. Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The Arc B390 was released on 2026-01-26, and the LX PRO was released on 2026-03-16. The Arc B390 has a 9th percentile ranking with a 1482 average benchmark score, while the LX PRO has a 50th percentile ranking with no average score.