NVIDIA GeForce GTX 680 vs AMD Radeon R9 390X
GPU · Specs Compare
Graphics Card
Release Date
Mar 2012
Jun 2015
Generation
GeForce 600
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1006 MHz
—
Boost Clock
1058 MHz
—
Memory Clock
1502 MHz
1500 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
512bit
Bandwidth
192.3GB/s
384.0GB/s
Render Config
Shading Units
1536
2816
TMUs
128
176
ROPs
32
64
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Compute Units
—
44
Theoretical Performance
Pixel Rate
33.86 GPixel/s
67.20 GPixel/s
Texture Rate
135.4 GTexel/s
184.8 GTexel/s
FP32 (float)
3.250 TFLOPS
5.914 TFLOPS
FP64 (double)
135.4 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
GK104
Grenada
GPU Variant
GK104-400-A2
Grenada XT(215-0880004)
Architecture
Kepler
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
6.2 billion
Die Size
294 mm²
438 mm²
Board Design
TDP
195W
275W
Suggested PSU
450 W
600 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.2.175
1.2
CUDA
3.0
—
Shader Model
6.5 (5.1)
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.