AMD Radeon HD 8770 OEM vs AMD Radeon 550X Mobile
GPU · Specs Compare
Graphics Card
Release Date
Sep 2013
Apr 2018
Generation
Sea Islands
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Memory Clock
1500 MHz
1500 MHz
Base Clock
—
1100 MHz
Boost Clock
—
1287 MHz
Memory
Memory Size
1024MB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
64bit
Bandwidth
96.00GB/s
48.00GB/s
Render Config
Compute Units
14
10
Shading Units
896
640
TMUs
56
40
ROPs
16
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
256 KB
Theoretical Performance
Pixel Rate
16.80 GPixel/s
20.59 GPixel/s
Texture Rate
58.80 GTexel/s
51.48 GTexel/s
FP32 (float)
1.882 TFLOPS
1.647 TFLOPS
FP64 (double)
117.6 GFLOPS
103.0 GFLOPS
FP16 (half)
—
1.647 TFLOPS
Graphics Processor
GPU Name
Bonaire
Polaris 23
GPU Variant
Bonaire XT(215-0839039)
Polaris 23 MXT
Architecture
GCN 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
2.08 billion
2.2 billion
Die Size
160 mm²
103 mm²
Board Design
TDP
85W
50W
Suggested PSU
250 W
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.2
Shader Model
6.3
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.