NVIDIA GeForce GTX 780 vs AMD Radeon R9 390X
GPU Specs Compare
Graphics Card
Release Date
May 2013
Jun 2015
Generation
GeForce 700
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
863 MHz
-
Boost Clock
902 MHz
-
Memory Clock
1502 MHz
1500 MHz
Memory
Memory Size
3GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
512bit
Bandwidth
288.4GB/s
384.0GB/s
Render Config
Shading Units
2304
2816
TMUs
192
176
ROPs
48
64
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1536 KB
1024 KB
Compute Units
-
44
Theoretical Performance
Pixel Rate
43.30 GPixel/s
67.20 GPixel/s
Texture Rate
173.2 GTexel/s
184.8 GTexel/s
FP32 (float)
4.156 TFLOPS
5.914 TFLOPS
FP64 (double)
173.2 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
GK110
Grenada
GPU Variant
GK110-300-A1
Grenada XT(215-0880004)
Architecture
Kepler
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
6.2 billion
Die Size
561 mm²
438 mm²
Board Design
TDP
250W
275W
Suggested PSU
600 W
600 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin + 1x 8-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
3.5
-
Shader Model
6.5 (5.1)
6.3