AMD Radeon RX 470 Mobile vs AMD Radeon HD 8870 OEM
GPU Specs Compare
Graphics Card
Release Date
Aug 2016
Jan 2013
Generation
Mobility Radeon
Sea Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
926 MHz
-
Boost Clock
1074 MHz
-
Memory Clock
1750 MHz
1200 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
224.0GB/s
153.6GB/s
Render Config
Compute Units
32
20
Shading Units
2048
1280
TMUs
128
80
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
512 KB
Theoretical Performance
Pixel Rate
34.37 GPixel/s
32.00 GPixel/s
Texture Rate
137.5 GTexel/s
80.00 GTexel/s
FP16 (half)
4.399 TFLOPS
-
FP32 (float)
4.399 TFLOPS
2.560 TFLOPS
FP64 (double)
274.9 GFLOPS
160.0 GFLOPS
Graphics Processor
GPU Name
Ellesmere
Pitcairn
GPU Variant
Ellesmere PRO
Pitcairn XT(215-0828047)
Architecture
GCN 4.0
GCN 1.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
2.8 billion
Die Size
232 mm²
212 mm²
Board Design
TDP
85W
175W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
-
450 W
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2
1.2
Shader Model
6.4
5.1