AMD Radeon R7 265X OEM vs AMD Radeon RX 580G
GPU Specs Compare
Graphics Card
Release Date
Aug 2014
Oct 2018
Generation
Volcanic Islands
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
900 MHz
1257 MHz
Boost Clock
925 MHz
1330 MHz
Memory Clock
1400 MHz
2000 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
179.2GB/s
256.0GB/s
Render Config
Compute Units
20
36
Shading Units
1280
2304
TMUs
80
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
42.56 GPixel/s
Texture Rate
74.00 GTexel/s
191.5 GTexel/s
FP32 (float)
2.368 TFLOPS
6.129 TFLOPS
FP64 (double)
148.0 GFLOPS
383.0 GFLOPS
FP16 (half)
-
6.129 TFLOPS
Graphics Processor
GPU Name
Curacao
Polaris 20
GPU Variant
Curacao PRO(215-0848000)
Polaris 20 XTX(215-0910038)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
2.8 billion
5.7 billion
Die Size
212 mm²
232 mm²
Board Design
TDP
150W
185W
Suggested PSU
450 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
1x 6-pin
1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2
Shader Model
5.1
6.4