Radeon HD 7850 and Radeon HD 6970 - video card comparison
Passmark - benchmark score Radeon HD 7850 vs Radeon HD 6970
Radeon HD 7850
3976
Radeon HD 6970
2921
Radeon HD 7850
Radeon HD 6970
Architecture
GCN 1.0 (2012−2020)
Terascale 2 (2009−2015)
GPU code name
Pitcairn
Cayman
Market segment
Desktop
Desktop
Release date
March 2012
December 2010
Bus support
PCIe 2.1 x16
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Boost clock speed
1000 MHz
880 MHz
Floating-point performance
1,761 gflops
2,703.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,800 million
2,640 million
Pipelines / CUDA cores
1024
1536
Power consumption (TDP)
130 Watt
550 Watt
Texture fill rate
55.04
84.48
Memory type
GDDR5
DDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1200 MHz
1375 MHz
Memory bandwidth
153.6 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
1
1
HDMI
+
+
DisplayPort support
-
-
DirectX
12
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
1
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-