Radeon R9 280X and Radeon HD 6950 - video card comparison
Passmark - benchmark score Radeon R9 280X vs Radeon HD 6950
Radeon R9 280X
6012
Radeon HD 6950
2693
Radeon R9 280X
Radeon HD 6950
Architecture
GCN (2011−2017)
TeraScale 3 (2010−2013)
GPU code name
Thaiti XTL
Cayman
Market segment
Desktop
Desktop
Release date
October 2013
December 2010
Bus support
PCIe 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
2x 6-pin
Boost clock speed
1000 MHz
800 MHz
Floating-point performance
4,096 gflops
2,252.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
4,313 million
2,640 million
Pipelines / CUDA cores
2048
1408
Power consumption (TDP)
250 Watt
500 Watt
Texture fill rate
128.0
70.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
2 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
-
1250 MHz
Memory bandwidth
288 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
+
1
HDMI
+
+
DisplayPort support
+
-
DirectX
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
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-