NVIDIA GeForce GTX 980 vs NVIDIA GeForce GTX 680 Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Sep 2014
Apr 2013
Generation
GeForce 900
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1127 MHz
1006 MHz
Boost Clock
1216 MHz
1058 MHz
Memory Clock
1753 MHz
1502 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
224.4GB/s
192.3GB/s
Render Config
Shading Units
2048
1536
TMUs
128
128
ROPs
64
32
L1 Cache
48 KB (per SMM)
16 KB (per SMX)
L2 Cache
2 MB
512 KB
Theoretical Performance
Pixel Rate
77.82 GPixel/s
33.86 GPixel/s
Texture Rate
155.6 GTexel/s
135.4 GTexel/s
FP32 (float)
4.981 TFLOPS
3.250 TFLOPS
FP64 (double)
155.6 GFLOPS
135.4 GFLOPS
Graphics Processor
GPU Name
GM204
GK104
GPU Variant
GM204-400-A1
GK104-400-A2
Architecture
Maxwell 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5.2 billion
3.54 billion
Die Size
398 mm²
294 mm²
Board Design
TDP
165W
195W
Suggested PSU
450 W
450 W
Outputs
1x DVI1x HDMI 2.03x DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
2x 6-pin
Graphics Features
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
5.2
3.0
Shader Model
6.4
5.1