Radeon R9 280 and Radeon HD 2900 GT - video card comparison
Passmark - benchmark score Radeon R9 280 vs Radeon HD 2900 GT
Radeon R9 280
5726
Radeon HD 2900 GT
301
Radeon R9 280
Radeon HD 2900 GT
Architecture
GCN 1.0 (2012−2020)
TeraScale (2005−2013)
GPU code name
Tahiti
R600
Market segment
Desktop
Desktop
Release date
March 2014
November 2007
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
1x 8-pin
Boost clock speed
933 MHz
-
Core clock speed
-
601 MHz
Floating-point performance
3,344 gflops
288.48 gflops
Manufacturing process technology
28 nm
80 nm
Number of transistors
4,313 million
720 million
Pipelines / CUDA cores
1792
240
Power consumption (TDP)
200 Watt
150 Watt
Texture fill rate
104.5
7.212
Memory type
GDDR5
GDDR3
Maximum RAM amount
3 GB
256 MB
Memory bus width
384 Bit
256 Bit
Memory clock speed
1250 MHz
1600 MHz
Memory bandwidth
240 GB/s
51.2 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x S-Video
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
10.0 (10_0)
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
+
N/A
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-