Radeon HD 4870 and Radeon R7 Graphics - video card comparison
Radeon HD 4870
Radeon R7 Graphics
Architecture
TeraScale (2005−2013)
GCN 2.0 (2013−2017)
GPU code name
RV770
Spectre
Market segment
Desktop
Desktop
Release date
June 2008
January 2014
Interface
PCIe 2.0 x16
IGP
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
980 MHz
Core clock speed
750 MHz
686 MHz
Floating-point performance
1,200.0 gflops
526.8 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
956 million
2,410 million
Pipelines / CUDA cores
800
512
Power consumption (TDP)
150 Watt
15 Watt
Texture fill rate
30.00
31.36
Memory type
GDDR5
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
3600 MHz
System Shared
Memory bandwidth
115.2 GB/s
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 (12_0)
OpenCL
1.1
2.0
OpenGL
3.3
4.6
Shader Model
4.1
6.0
Vulkan
N/A
1.2.131