AMD Radeon HD 8990 OEM vs AMD Radeon Pro 580
GPU Specs Compare
Graphics Card
Release Date
Apr 2013
Jun 2017
Generation
Sea Islands
Radeon Pro Mac
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
950 MHz
1100 MHz
Boost Clock
1000 MHz
1200 MHz
Memory Clock
1500 MHz
1695 MHz
Memory
Memory Size
3GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
288.0GB/s
217.0GB/s
Render Config
Compute Units
32
36
Shading Units
2048
2304
TMUs
128
144
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
2 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
38.40 GPixel/s
Texture Rate
128.0 GTexel/s
172.8 GTexel/s
FP32 (float)
4.096 TFLOPS
5.530 TFLOPS
FP64 (double)
1024 GFLOPS
345.6 GFLOPS
FP16 (half)
-
5.530 TFLOPS
Graphics Processor
GPU Name
Malta
Ellesmere
GPU Variant
Malta XT(215-0849026)
Ellesmere XTA(216-0886220)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
5.7 billion
Die Size
365 mm²
232 mm²
Board Design
TDP
375W
185W
Suggested PSU
750 W
-
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
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
📊 Benchmark
3DMark Time Spy
-
3,791
3DMark Time Spy Extreme
-
1,684