Radeon HD 6970 and Radeon HD 4650 - video card comparison
Passmark - benchmark score Radeon HD 6970 vs Radeon HD 4650
Radeon HD 6970
2921
Radeon HD 4650
246
Radeon HD 6970
Radeon HD 4650
Architecture
Terascale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Cayman
RV730
Market segment
Desktop
Desktop
Release date
December 2010
September 2008
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Boost clock speed
880 MHz
-
Core clock speed
-
600 MHz
Floating-point performance
2,703.4 gflops
384.0 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
2,640 million
514 million
Pipelines / CUDA cores
1536
320
Power consumption (TDP)
550 Watt
48 Watt
Texture fill rate
84.48
19.20
Memory type
DDR5
GDDR3
Maximum RAM amount
2 GB
256 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1375 MHz
1400 MHz
Memory bandwidth
-
22.4 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x S-Video
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
10.1 (10_1)
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-