Radeon HD 7790 and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon HD 7790 vs Radeon HD 3870
Radeon HD 7790
3183
Radeon HD 3870
572
Radeon HD 7790
Radeon HD 3870
Architecture
GCN 2.0 (2013−2017)
TeraScale (2005−2013)
GPU code name
Bonaire
RV670
Market segment
Desktop
Desktop
Release date
March 2013
November 2007
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
1000 MHz
777 MHz
Floating-point performance
1,792 gflops
497.3 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
2,080 million
666 million
Pipelines / CUDA cores
896
320
Power consumption (TDP)
85 Watt
106 Watt
Texture fill rate
56.00
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
1 GB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
6000 MHz
2252 MHz
Memory bandwidth
96 GB/s
72.06 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (12_0)
10.1 (10_1)
OpenCL
2.0
N/A
OpenGL
4.6
3.3
Shader Model
6.3
4.1
Vulkan
1.2.131
N/A