Radeon R7 Graphics and Radeon HD 2900 XT - video card comparison
Radeon R7 Graphics
Radeon HD 2900 XT
Architecture
GCN 2.0 (2013−2017)
TeraScale (2005−2013)
GPU code name
Spectre
R600
Market segment
Desktop
Desktop
Release date
January 2014
May 2007
Interface
IGP
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin + 1x 8-pin
Boost clock speed
980 MHz
-
Core clock speed
686 MHz
743 MHz
Floating-point performance
526.8 gflops
475.5 gflops
Manufacturing process technology
28 nm
80 nm
Number of transistors
2,410 million
720 million
Pipelines / CUDA cores
512
320
Power consumption (TDP)
15 Watt
215 Watt
Texture fill rate
31.36
11.89
Memory type
System Shared
GDDR3
Maximum RAM amount
System Shared
512 MB
Memory bus width
System Shared
512 Bit
Memory clock speed
System Shared
1656 MHz
Memory bandwidth
-
106.0 GB/s
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
12 (12_0)
10.0 (10_0)
OpenCL
2.0
N/A
OpenGL
4.6
3.3
Shader Model
6.0
4.0
Vulkan
1.2.131
N/A