Radeon HD 4890 and Radeon HD 2950 XTX - video card comparison
Radeon HD 4890
Radeon HD 2950 XTX
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV790
RV670
Market segment
Desktop
Desktop
Release date
April 2009
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Core clock speed
850 MHz
777 MHz
Floating-point performance
1,360.0 gflops
-
Manufacturing process technology
55 nm
55 nm
Number of transistors
959 million
666 million
Pipelines / CUDA cores
800
320
Power consumption (TDP)
190 Watt
110 Watt
Texture fill rate
34.00
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
3900 MHz
2.3 GB/s
Memory bandwidth
124.8 GB/s
72.06 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
10.1 (10_1)
OpenCL
1.1
N/A
OpenGL
3.3
3.3 (full)
Shader Model4.14.1
Vulkan
N/A
N/A