Radeon HD 6970 and GeForce GT 640 - video card comparison
Passmark - benchmark score Radeon HD 6970 vs GeForce GT 640
Radeon HD 6970
2921
GeForce GT 640
1210
Radeon HD 6970
GeForce GT 640
Architecture
Terascale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Cayman
GK107
Market segment
Desktop
Desktop
Release date
December 2010
June 2012
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
None
Boost clock speed
880 MHz
-
Core clock speed
-
902 MHz
Floating-point performance
2,703.4 gflops
692.7 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2,640 million
1,270 million
Pipelines / CUDA cores
1536
384
Power consumption (TDP)
550 Watt
65 Watt
Texture fill rate
84.48
28.86
Memory type
DDR5
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1375 MHz
1782 MHz
Memory bandwidth
-
28.51 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
12 (11_0)
CUDA
-
3.0
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
-
1.1.126
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-