Intel Core i5-7500T vs Intel Pentium Gold 6500Y vs Intel Core i3-7100U

Intel Core i5-7500T

The Intel Core i5-7500T is a power efficient desktop quad-core based on the Kaby Lake architecture. It was announced early 2017 and offers four cores and no HyperThreading (only 4 threads). The CPU clocks between 2.7 and 3.3 GHz. The integrated Intel HD Graphics 630 graphics card offers 24 EUs clocked at 350 to 1100 MHz. The TDP is specified at only 35 Watt and therefore even lower than mobile HQ quad cores (45 Watt). Thats why the CPU is also used in some laptops.

Intel Pentium Gold 6500Y

The Intel Pentium Gold 6500Y is an energy-efficient, dual-core SoC designed for use in Windows tablets and passively cooled laptops. The Pentium is based on the old Amber Lake architecture that was initially introduced in 2018. The CPU was unveiled in Q1 2021; it is, in fact, not very different from Intel Core m3-8100Y, the only difference between the two being the slightly slower iGPU model (23 EU UHD Graphics 615 vs 24 EU UHD Graphics 615).

The two CPU cores run at 1.1 GHz to 3.4 GHz and are Hyper-Threading-enabled for 4 processing threads in total.

Architecture

Amber Lake family products are not known to have many improvements compared to the previous Kaby Lake and Skylake processors. They all share nearly the same per-MHz performance and nearly the same set of capabilities. Amber Lake processors do, however, have slightly higher clock speeds in comparison to their immediate predecessors.

Pentium 6500Y has a built-in dual-channel DDR3L-1600/LPDDR3-1866 memory controller as well as several PCI-Express 3.0 lanes for connecting graphics cards, SSDs and other devices. Four PCI-Express 3.0 lanes allow for read/write rates of up to 3.9 GB/s, provided a suitably fast NVMe SSD is used.

Please note this is not a user-replaceable CPU. It is supposed to get soldered permanently on to the motherboard (BGA1515 socket interface).

Performance

While we have not tested a single system built around the 6500Y as of August 2023, we have tested at least one laptop featuring the Core i3-10100Y, a chip that's just a little faster (Amber Lake, 2 cores, 4 threads, up to 3.9 GHz). Based on that, we expect the 6500Y to trail behind the AMD 3020e and the AMD 3050e just slightly. In other words, this is a very slow chip, as of mid 2023.

Graphics

The Intel UHD Graphics 615 normally has 24 Execution Units at its disposal but, for reason unbeknownst to us, just 23 EUs are active in the case of this Pentium. The graphics adapter is not much different from the HD Graphics 615 as found in 7th Gen Y-class Intel Core processors. As such, it has no support for SUHD 4320p monitors, nor can it HW-decode AV1, the latest video codec. Just the more usual VP9, AVC and HEVC are supported.

The UHD Graphics runs at 300 MHz to 900 MHz. This is not a GPU that a gamer would be happy with; very poor 3D performance is to be expected because of the thermal constraints (both Core m3-8100Y and Pentium 6500Y were created with thin tablets and ultra-thin laptops in mind) as well as the rather low TDP of the SoC. Most games will not be playable even if set to Lowest quality preset at 720p resolution. The least graphically intensive titles, like Farming Simulator 19, will pose no problem for the iGPU, though.

Power consumption

The chip is manufactured on one of the old 14 nm Intel processes for fairly unimpressive, as of late 2022, energy efficiency.

The Pentium 6500Y has a default TDP of 5 W (also known as the long-term power limit), half a watt higher than its immediate predecessors; despite the difference, a value this low makes the Pentium more than suitable for use in ultra-thin, passively cooled laptops, tablets, mini-PCs. The default TDP can be reduced slightly (with 3.5 W being the lowest Intel-recommended value) or increased (up to 7 W are possible) by laptop makers if needed, with clock speeds and performance changing accordingly as a result.

Intel Core i3-7100U

The Intel Core i3-7100U is a dual-core processor of the Kaby Lake architecture. It offers two CPU cores clocked at 2.4 GHz (without Turbo Boost) and integrates HyperThreading to work with up to 4 threads at once. The architectural differences are rather small compared to the Skylake generation, therefore the performance per MHz should be very similar. The SoC includes a dual channel DDR4 memory controller and Intel HD Graphics 620 graphics card (clocked at 300 - 1000 MHz). It is manufactured in an improved 14nm FinFET process at Intel. Compare to the old Skylake Core i3-6100U, the i3-7100U offers a 100 MHz improved clock speed.

 Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.