Radeon HD 4890 and Radeon HD 4870 X2 - video card comparison
Passmark - benchmark score Radeon HD 4890 vs Radeon HD 4870 X2
Radeon HD 4890
1552
Radeon HD 4870 X2
1348
Radeon HD 4890
Radeon HD 4870 X2
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV790
R700
Market segment
Desktop
Desktop
Release date
April 2009
August 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Core clock speed
850 MHz
700 MHz
Floating-point performance
1,360.0 gflops
2x 1,120.0 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
959 million
956 million
Pipelines / CUDA cores
800
800
Power consumption (TDP)
190 Watt
286 Watt
Texture fill rate
34.00
28.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
3900 MHz
3600 MHz
Memory bandwidth
124.8 GB/s
115.2 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
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A