AMD uses four different names for the dual-core version of Turion: Turion 64 X2 (models starting with "TL"), Turion X2 (models starting with "RM"), Turion X2 Ultra (models starting with "ZM") and Turion Neo X2 (model with "L"). Despite the name, they are all the same processor. The main differences between these CPUs and the original Turion 64 is the presence of two processing cores, of course, and the support for DDR2 memory modules under dual-channel configuration, meaning that the CPU can access the memory at 128-bit rate, doubling the memory maximum theoretical transfer rate (single-core Turion 64 models based on socket S1 also support DDR2 memories under dual-channel configuration).

While Turion 64 competes with Pentium M and Core Solo, Turion 64 X2 competes with Core Duo and Core 2 Duo.

Turion X2 has the same features found on Turion 64 plus:

• Dual-core technology 
• 256 KB, 512 KB ou 1 MB L2 memory cache per core, depending on the model.
• HyperTransport bus running at 800 MHz (3.2 GB/s), 1,800 MHz (7.2 GB/s), 2,000 MHz (8 GB/s) or 2,200 MHz (8.8 GB/s). These clocks may also be referred as “1,600 MHz", "3,600 MHz", "4,000 MHz" and "4,400 MHz", respectively.
• Support for DDR2 memories and dual channel configuration.
• Socket S1
• 65 nm or 90 nm manufacturing process

In the table below we listed all Turion 64 X2, Turion X2, Turion X2 Ultra and Turion Neo X2 models released so far.

TDP stands for Thermal Design Power and indicates the CPU thermal dissipation, i.e., the CPU cooler must be capable of dissipating at least this amount of heat.