That lets GDDR6X move data twice as fast as previous incarnations. Micron’s memory rolls out “PAM4” signaling technology, which lets them send four possible values per cycle, up from the traditional two. This time around, the GeForce RTX 3080 (and forthcoming RTX 3090) tap Micron’s blazing-fast GDDR6X memory modules. Like the GTX 1080 and RTX 2080 before it, Nvidia’s latest flagship introduces cutting-edge memory, too. Hot damn.īottom line? Improvements in the Ampere GPU architecture give a big boost to performance in both traditional games as well as games that leverage Nvidia’s RTX capabilities.īut the GeForce RTX 3080’s gains don’t come solely from the new Ampere architecture. Paired with the improved shader capabilities, a frame that took up to 13 milliseconds to run on Turing with ray tracing and DLSS enabled can now be spit out in 6.7ms with Ampere. In Ampere, tensor cores can run DLSS to upscale one frame while the shader and RT cores work on the next one, all three process tasks running simultaneously. In Turing, ray-traced tasks ran alongside shader functions, but the GPU needed to finish that ray-traced task and hand it to the tensor cores for denoising and DLSS before spitting out the final image. Those gains are boosted even further by Ampere’s newfound ability to run tasks on the tensor and RT cores simultaneously. Performance in traditional games stayed largely stagnant in the RTX 20-series graphics cards, however, partially because FP32 is generally more important for gaming workloads. The new pipeline let Nvidia’s GPU handle integer instructions at the same time as traditional FP instructions, giving Turing-based graphics cards a big speed boost in games that leaned heavily on those tasks-namely, well-optimized Vulkan and DirectX 12 games. Turing’s simultaneous multiprocessors (SMs)-the building blocks of the GPU-received a significant overhaul, adding a new integer pipeline (INT32) alongside the floating point pipeline (FP32) traditionally used to process shading. While Turing shook up GPU design, Ampere builds on Turing’s foundations. It’s no different this time around, as you’ll soon see. The last time Nvidia leaped a node, the GeForce GTX 10-series demolished their direct predecessors. Ampere is built using Samsung’s 8nm processor node, moving up from the TSMC 14nm and slightly modified 12nm nodes used for the GTX 10- and RTX 20-series cards, so this is a generational leap for Nvidia. The beating heart inside the GeForce RTX 3080 is Nvidia’s new GA102 “Ampere” GPU. Skip to the next section if you aren’t interested in some deeper details on how the tech inside the GeForce RTX 3080 works.
Check out Nvidia GeForce RTX 3080 tested: 5 key things you need to know for high-level takeaways of this in-depth info, or use this table of contents to hop between the various sections of the review. Editor’s note: This comprehensive review of the GeForce RTX 3080 goes longer than most as it’s our first evaluation of an Ampere-powered GeForce RTX 30-series graphics card.
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