Intel Arc B370 Xe3 iGPU appears on Furmark 2 — Panther Lake graphics fall 14% behind last-gen Xe2 Arc 140V

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If these benchmark numbers are true, the B370 does not provide a performance leap over its predecessors as many might have expected.

A Panther Lake client SoC
(Image credit: Intel)

Another benchmark listing has cropped up for the leaked Arc B370 integrated graphics chip housed in Intel's upcoming Panther Lake Core Ultra 5 338H. The iGPU was tested in Furmark 2 and shared by resident leaker momomo_us on X, featuring a score just below that of Intel's outgoing A380 desktop graphics card and Intel's outgoing Arc 140V and 140T iGPUs found in its Lunar Lake mobile CPUs.

The particular listing momomo_us shared above sees the Xe3 iGPU scoring 2,383 points in Furmark's benchmark test at a reported max boost clock of up to 2,300 MHz, and at up to 36 watts of power. However, the GPU is outperformed by Intel's outgoing Arc 140V and 140T counterparts, with the 140V scoring 2,736 points and the 140T scoring 2,398 points, respectively. The 140V and 140T results were taken from the same database that the B370's results came from.

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GPU:

Furmark 2 result

Arc B370

2,383

Arc A380 (desktop)

2,512

Arc 140V

2,736

Arc 140T

2,398

These results make Intel's flagship 140V Xe2 graphics chip 14% faster than the B370, and the 140T equal to the B370. To make matters worse for the B370, both 140-series iGPUs operate at between 10 and 12 watts less, making the B370 worse on energy efficiency as well.

Take these results with a pinch of salt since the B370 is not out yet, but these results are awfully similar to our previous article on the B370, which showed the Xe3 iGPU performing roughly the same with the 140T in Geekbench as well. That said, these results are not surprising. Intel confirmed this year that its Celestial (Arc C-series) Xe3 graphics chips would actually function off of its outgoing Battlemage GPU architecture rather than jumping on a new architecture, as many previously thought. Instead, genuine performance/efficiency improvements won't come until Intel debuts its Xe3P architecture.

The Arc B370 will reportedly be one of the likely several iGPU models included in Intel's next-generation Panther Lake architecture (the Core Ultra 5 338H is the first chip we've seen with the B370). Panther Lake will launch in January 2026, boasting Intel's 18A process node, Cougar Cove P-cores, and Darkmount E-cores. Intel hopes Panther Lake will be a "one-size-fits-all" solution for mobile, providing the power efficiency of Lunar Lake and the performance of Arrow Lake in one cohesive design.

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Aaron Klotz
Aaron Klotz
Contributing Writer

Aaron Klotz is a contributing writer for Tom’s Hardware, covering news related to computer hardware such as CPUs, and graphics cards.

6 Comments Comment from the forums
  • cyrusfox
    This article is misleading. The Furmark 2 results show that the B370 and 140T perform almost identically. There is no meaningful difference, so the claim that the B370 is "behind" the 140T does not hold up.

    While the A380 based on Alchemist appears stronger in synthetic benchmarks, I bet the B370 will surpass it in actual performance, even though the A380 uses 8 Xe Cores compared to just 4 in these newer iGPUs.

    The real question is who is fabricating these GPU dies, TSMC or Intel, and on what process node. From what I can see, the B370 is made on Intel 3 (link) and the 140T and 140V are on TSMC N3. This is probably the best comparison we will see of node versus node performance between TSMC and Intel. It looks like they are about tied, but TSMC might have a slight edge unless the result is due to the integrated memory module on Lunar Lake. If that is the case, I would argue they are matched.

    I am looking forward to Panther Lake launch and more disclosures on performance. The 4 Xe3 cores look strong even on the B370.
    Reply
  • Giroro
    NGL, I had no idea that FurMark was actually used as a benchmark, or that it even had "scores".
    I always thought of it more of a power virus and/or GPU burn-in test.
    Reply
  • thestryker
    cyrusfox said:
    The real question is who is fabricating these GPU dies,
    It's a question that Intel already answered: TSMC N3E for the big die Intel 3 for the small die.

    B370 is a slightly cut down version of the big die with 10 Xe3 cores.
    Reply
  • igor002020
    Looks like 140v and A380 scores in X post are plain wrong. As per following chart, 140v hits ~1400 points while A380 around 1800 points.
    https://geeks3d.com/20250113/furmark-2-benchmark-charts-for-p1440-scores/
    Reply
  • George³
    As it is clear that there is a separate media engine, xe³ will likely be used exclusively for gaming. This may allow for higher performance for that purpose and match, if not surpass, the previous general-purpose graphic variant?
    Reply
  • thestryker
    George³ said:
    As it is clear that there is a separate media engine, xe³ will likely be used exclusively for gaming. This may allow for higher performance for that purpose and match, if not surpass, the previous general-purpose graphic variant?
    Intel split the Display and Media Engines off of the Graphics Tile back with MTL and every tile based CPU since has been the same way so this aspect changes nothing.
    Reply