Radeon R9 290X and Radeon HD 2900 XTX - video card comparison
Radeon R9 290X
Radeon HD 2900 XTX
Architecture
GCN (2011−2017)
TeraScale (2005−2013)
GPU code name
Hawaii XT
R600
Market segment
Desktop
Desktop
Release date
October 2013
-
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
2x 6-pin
Boost clock speed
947 MHz
-
Core clock speed
-
743 MHz
Floating-point performance
5,632 gflops
-
Manufacturing process technology
28 nm
80 nm
Number of transistors
6,200 million
720 million
Pipelines / CUDA cores
2816
320
Power consumption (TDP)
250 Watt
240 Watt
Texture fill rate
176.0
11.89
Memory type
GDDR5
GDDR3
Maximum RAM amount
4 GB
512 MB
Memory bus width
512 Bit
512 Bit
Memory clock speed
1250 MHz
1656 MBps
Memory bandwidth
320 GB/s
106.0 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
Eyefinity
+
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
10.0 (10_0)
Mantle
-
-
OpenCL
2.0
N/A
OpenGL
4.6
3.3 (full)
Shader Model6.34.0
Vulkan
+
N/A
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-