AMD Radeon Pro 575X vs AMD Radeon HD 8990 OEM
GPU · Specs Compare
Graphics Card
Release Date
Mar 2019
Apr 2013
Generation
Radeon Pro Mac
Sea Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1700 MHz
1500 MHz
Base Clock
—
950 MHz
Boost Clock
—
1000 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
217.6GB/s
288.0GB/s
Render Config
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
768 KB
Theoretical Performance
Pixel Rate
35.07 GPixel/s
32.00 GPixel/s
Texture Rate
140.3 GTexel/s
128.0 GTexel/s
FP16 (half)
4.489 TFLOPS
—
FP32 (float)
4.489 TFLOPS
4.096 TFLOPS
FP64 (double)
280.6 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Malta
GPU Variant
Polaris 20 XL(215-0910052)
Malta XT(215-0849026)
Architecture
GCN 4.0
GCN 1.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
4.313 billion
Die Size
232 mm²
365 mm²
Board Design
TDP
150W
375W
Outputs
No outputs
1x DVI4x mini-DisplayPort 1.2
Power Connectors
None
2x 8-pin
Suggested PSU
—
750 W
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2
1.2
Shader Model
6.4
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.