Radeon HD 7990 and GeForce GTX 680 - video card comparison
Passmark - benchmark score Radeon HD 7990 vs GeForce GTX 680
Radeon HD 7990
5732
GeForce GTX 680
5721
Radeon HD 7990
GeForce GTX 680
Architecture
GCN 1.0 (2012−2020)
Kepler (2012−2018)
GPU code name
Malta
GK104
Market segment
Desktop
Desktop
Release date
April 2013
March 2012
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
Two 6-pin
SLI options
-
+
Boost clock speed
1000 MHz
1058 MHz
Core clock speed
950 MHz
1006 MHz
CUDA cores
-
1536
Floating-point performance
2x 4,096 gflops
3,090.4 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
3,540 million
Pipelines / CUDA cores
2048
1536
Power consumption (TDP)
375 Watt
195 Watt
Texture fill rate
128.0
128.8 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
2048 MB
Memory bus width
384 Bit
256-bit GDDR5
Memory clock speed
6000 MHz
6000 MHz
Memory bandwidth
288.0 GB/s
192.2 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 4x mini-DisplayPort
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor support
-
4 displays
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (11_1)
12 (11_0)
CUDA
-
+
OpenCL
1.2
1.2
OpenGL
4.6
4.2
Shader Model
5.1
5.1
Vulkan
1.2.131
1.1.126