Detailed Look: GeForce GTX 980
NVIDIA GM204 is comprised of 4 Graphics Processing Clusters (GPC), 16 Maxwell Streaming Multiprocessors (SMM), and four 64-bit memory controllers. In GeForce GTX 980, each GPC has it’s own raster engine along with four SMMs. Each of those four SMMs includes 128 CUDA cores, 8 texture units, and its own polymorph engine.
The NVIDIA GM204 inside GeForce GTX 980 consists of 5.2 Billion transistors, and offers 2048 CUDA cores operating at 1126 MHz which typically boosts to 1216 MHz. Assigned to each memory controller are 16 ROP units and 512KB of L2 cache, for a total 64 ROP units and 2MB of combined L2 cache on GTX 980.
After a long absence from the GTX series design, the PCB heatspreader has returned on GeForce GTX 980. To this reviewer the accessory seems unwarranted, considering how the efficient GPU translates into less power consumed and therefore less heat generated. In spite of this, it does help reduce the operating temperatures while also protecting sensitive surface electronics.
In the next section, we detail our test methodology and give specifications for all of the benchmarks and equipment used in our testing process…