Radeon RX 580 and Radeon HD 3850 X2 - video card comparison
Passmark - benchmark score Radeon RX 580 vs Radeon HD 3850 X2
Radeon RX 580
9140
Radeon HD 3850 X2
847
Radeon RX 580
Radeon HD 3850 X2
Architecture
Polaris (2016−2019)
TeraScale (2005−2013)
GPU code name
Polaris 20
RV670
Market segment
Desktop
Desktop
Release date
April 2017
April 2008
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 8-pin
-
Boost clock speed
1340 MHz
-
Core clock speed
1257 MHz
669 MHz
Floating-point performance
6,175 gflops
2x 428.2 gflops
Manufacturing process technology
14 nm
55 nm
Number of transistors
5,700 million
666 million
Pipelines / CUDA cores
2304
320
Power consumption (TDP)
185 Watt
140 Watt
Texture fill rate
193.0
10.70
Memory type
GDDR5
GDDR3
Maximum RAM amount
8 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
8000 MHz
1656 MHz
Memory bandwidth
256.0 GB/s
52.99 GB/s
Display Connectors
1x HDMI, 3x 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
6.4
4.1
Vulkan
1.2.131
N/A