AMD Radeon HD 8990 OEM vs AMD Radeon RX 560D
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Jul 2017
Generation
Sea Islands
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
950 MHz
1090 MHz
Boost Clock
1000 MHz
1175 MHz
Memory Clock
1500 MHz
1500 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
128bit
Bandwidth
288.0GB/s
96.00GB/s
Render Config
Compute Units
32
14
Shading Units
2048
896
TMUs
128
56
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
1024 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
18.80 GPixel/s
Texture Rate
128.0 GTexel/s
65.80 GTexel/s
FP32 (float)
4.096 TFLOPS
2.106 TFLOPS
FP64 (double)
1024 GFLOPS
131.6 GFLOPS
FP16 (half)
-
2.106 TFLOPS
Graphics Processor
GPU Name
Malta
Polaris 21
GPU Variant
Malta XT(215-0849026)
Polaris 21 XL
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
3 billion
Die Size
365 mm²
123 mm²
Board Design
TDP
375W
65W
Suggested PSU
750 W
250 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Power Connectors
2x 8-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