AMD Radeon HD 8950 OEM vs AMD Radeon RX 560X
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Apr 2018
Generation
Sea Islands
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
850 MHz
1175 MHz
Boost Clock
925 MHz
1275 MHz
Memory Clock
1250 MHz
1750 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
128bit
Bandwidth
240.0GB/s
112.0GB/s
Render Config
Compute Units
28
16
Shading Units
1792
1024
TMUs
112
64
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
1024 KB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
20.40 GPixel/s
Texture Rate
103.6 GTexel/s
81.60 GTexel/s
FP32 (float)
3.315 TFLOPS
2.611 TFLOPS
FP64 (double)
828.8 GFLOPS
163.2 GFLOPS
FP16 (half)
-
2.611 TFLOPS
Graphics Processor
GPU Name
Tahiti
Polaris 21
GPU Variant
Tahiti PRO(215-0821056)
Polaris 21 XT(215-0908004)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
3 billion
Die Size
352 mm²
123 mm²
Board Design
TDP
200W
75W
Suggested PSU
550 W
250 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
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
1.2
Shader Model
5.1
6.4