AMD Radeon E8870 vs AMD Radeon RX 455 OEM
GPU Specs Compare
Graphics Card
Release Date
Sep 2015
Jun 2016
Generation
Embedded
Arctic Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1500 MHz
1625 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
128bit
Bandwidth
96.00GB/s
104.0GB/s
Render Config
Compute Units
12
12
Shading Units
768
768
TMUs
48
48
ROPs
16
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
256 KB
Theoretical Performance
Pixel Rate
16.00 GPixel/s
16.80 GPixel/s
Texture Rate
48.00 GTexel/s
50.40 GTexel/s
FP32 (float)
1.536 TFLOPS
1.613 TFLOPS
FP64 (double)
96.00 GFLOPS
100.8 GFLOPS
Graphics Processor
GPU Name
Saturn
Tobago
GPU Variant
Saturn PRO
Tobago PRO(215-0875010)
Architecture
GCN 2.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
2.08 billion
Die Size
160 mm²
160 mm²
Board Design
TDP
75W
100W
Outputs
No outputs
1x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
-
300 W
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.0
Vulkan
1.2
1.2
Shader Model
6.3
6.3