AMD Radeon HD 8870 OEM vs AMD Radeon RX 560 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Jan 2013
Jan 2017
Generation
Sea Islands
Polaris Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1200 MHz
1500 MHz
Base Clock
—
1090 MHz
Boost Clock
—
1202 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
96.00GB/s
Render Config
Compute Units
20
16
Shading Units
1280
1024
TMUs
80
64
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
19.23 GPixel/s
Texture Rate
80.00 GTexel/s
76.93 GTexel/s
FP32 (float)
2.560 TFLOPS
2.462 TFLOPS
FP64 (double)
160.0 GFLOPS
153.9 GFLOPS
FP16 (half)
—
2.462 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Baffin
GPU Variant
Pitcairn XT(215-0828047)
Baffin XT
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
2.8 billion
3 billion
Die Size
212 mm²
123 mm²
Board Design
TDP
175W
65W
Suggested PSU
450 W
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.3
Shader Model
5.1
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.