Radeon R9 280 and Radeon HD 7750 - video card comparison
Passmark - benchmark score Radeon R9 280 vs Radeon HD 7750
Radeon R9 280
5726
Radeon HD 7750
1754
Radeon R9 280
Radeon HD 7750
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Tahiti
Cape Verde
Market segment
Desktop
Desktop
Release date
March 2014
February 2012
Bus support
PCIe 3.0
PCIe 2.1 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
None
Boost clock speed
933 MHz
800 MHz
Floating-point performance
3,344 gflops
819.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
1,500 million
Pipelines / CUDA cores
1792
512
Power consumption (TDP)
200 Watt
75 Watt
Texture fill rate
104.5
25.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
1 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
1250 MHz
1125 MHz
Memory bandwidth
240 GB/s
72 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
1
HDMI
+
+
DisplayPort support
-
+
DirectX
DirectX® 12
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
1
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-