What was the original PlayStation 4's theoretical GPU performance?

The original PlayStation 4 had a theoretical GPU performance of 1.84 teraflops.

Its graphics processor was a semi-custom AMD design based on the company’s Radeon technology. The GPU contained 18 compute units, each with 64 stream processors, for a total of 1,152 stream processors. Running at 800 MHz, that configuration produced a commonly cited peak figure of 1.84 teraflops for single-precision floating-point operations.

A teraflop is a measure of one trillion floating-point operations per second, but it is not a complete measure of game performance. Actual results also depend on memory bandwidth, software optimization, rendering techniques, resolution, and the workload placed on the CPU. Therefore, comparing teraflop figures alone can be misleading across different architectures.

The figure applies to the launch PlayStation 4, introduced in 2013. It should not be confused with the PlayStation 4 Pro, whose upgraded GPU delivered a substantially higher theoretical performance of about 4.2 teraflops. The standard console and Pro model also differed in CPU clock speed, memory bandwidth, and support for higher-resolution rendering.