Radeon HD 6990 and Radeon R7 260 - video card comparison
Passmark - benchmark score Radeon HD 6990 vs Radeon R7 260
Radeon HD 6990
3103
Radeon R7 260
2978
Radeon HD 6990
Radeon R7 260
Architecture
TeraScale 3 (2010−2013)
GCN 2.0 (2013−2017)
GPU code name
Antilles
Bonaire
Market segment
Desktop
Desktop
Release date
March 2011
December 2013
Bus support
-
PCIe 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
1 x 6-pin
Boost clock speed
-
1100 MHz
Core clock speed
830 MHz
-
Floating-point performance
2x 2,549.8 gflops
1,536 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2,640 million
2,080 million
Pipelines / CUDA cores
1536
768
Power consumption (TDP)
375 Watt
115 Watt
Texture fill rate
79.68
48.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
5000 MHz
1625 MHz
Memory bandwidth
160.0 GB/s
104 GB/s
Display Connectors
1x DVI, 4x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
-
1
HDMI
-
+
DisplayPort support
-
+
DirectX
11.2 (11_0)
DirectX® 12
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.3
Vulkan
N/A
-
AppAcceleration
-
-
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-