The final specifications of NVIDIA GeForce GTX 980 have been leaked by none other than Videocardz. Less than three days remain for the launch of the first flagship Maxwell GPU and it sounds impressive. Maxwell is a highly efficient architecture and NVIDIA is able to drop the TDP by 85 W to just 165 W compared to last generation GTX 780 Ti. NVIDIA will launch both GTX 980 and GTX 970 on September 19th, 2014 at its Game24 event. To put the icing on the cake, Computerbase managed to reveal the reference GTX 970 and GTX 980 as well as GTX 970 Phantom GPUs.
NVIDIA GeForce GTX 980 Specifications
|GeForce GTX 980||GeForce GTX 780 Ti||GeForce GTX 780|
|Process||28 nm||28 nm||28 nm|
|Die Size||398 mm²||581 mm²||561 mm²|
|Transistors||5.2 billion||3.54 billion||7.1 billion|
|Base Clock||1126 MHz||875 MHz||863 MHz|
|Boost Clock||1216 MHz||926 MHz||900 MHz|
|Memory Clock||1750 MHz||1750 MHz||1502 MHz|
|Memory Size||4 GB GDDR5||3 GB GDDR5||3 GB GDDR5|
|Memory Bandwidth||224 GB/s||336 GB/s||288 GB/s|
|Pixel Fillrate||72.1 GP/s||53.3 GP/s||41.4 GP/s|
|Texture Fillrate||144 GT/s||213 GT/s||166 GT/s|
|Power Connectors||2 x 6-pin||8-pin + 6-pin||8-pin + 6-pin|
|TDP||165 W||250 W||250 W|
|Launch Date||Sep 19th, 2014||Nov 7th, 2013||May 23rd, 2013|
NVIDIA GeForce GTX 980 Block Diagram
The GM204 die has been split in to four Graphics Processing Clusters (GPCs). Each GPC has four SMM units and each SMM has 128 cores. There are four 64b memory controllers and the GPU comes with 2 MB L2 cache. The die size (391 mm²) has been reduced significantly compared to GTX 780 Ti and GTX 780. NVIDIA was not able to build the GPU using the 20 nm manufacturing process but we are quite sure that GTX 980 Ti will be on 20 nm process.
Gainward GeForce GTX 980 Reference
Gainward’s GeForce GTX 980 will be based on the reference design and no factory overclocks. The reference cooler is identical to what we have seen with GTX TITAN, GTX 780 Ti, GTX 780 and GTX 770 but slight modifications have been made. A slight extension of the shroud can be seen at the bottom of the GPU and a new backplate has been installed at the back. There is a removal part at the backplate but we do not know the purpose of it yet but the overall design is the same. The cooler features a vapor chamber design with a big aluminum fin stack being cooled by a blower type fan at the end. GeForce GTX 980 features one DVI port, one HDMI port and three Displayports.
Gainward GeForce GTX 970 Reference
The basic specifications remain the same for Gainward’s GeFoce GTX 970 reference GPU. It comes with 1664 CUDA cores, 138 TMUs and 32 ROPs. NVIDIA wants to price it competitively so it decided not to include the same more expensive cooler as the GTX 980. GeForce GTX 970 features a plastic shroud on top with the same vapor chamber design and blower type fan to cool the GPU. It comes with 4 GB GDDR5 memory spread across a 256-bit memory interface. Gainward has changed the layout of the display outputs- DVI-I port, HDMI 2.0 port and three mini-DisplayPorts.
Gainward GeForce GTX 970 Phantom
Gainward’s GeForce GTX 970 Phantom is second custom variant we have seen today after ASUS’s STRIX GTX 970. The GPU comes with the same stealth cooler which was featured on last generation GPUs. The basic specifications remain the same except for the clock speeds. GTX 970 Phantom comes with slightly overclocked clock speeds of 1152 MHz with GPU Boost up to 1304 MHz, a massive increase compared to the reference design. The Phantom cooler features removable fans which are easier to clean and the top cover gives it a stealthier look. Both GTX 970s require 2 x 6-pin power connectors and share the same display outputs layout.