AMD Radeon HD 6990M vs AMD Radeon Pro 575
GPU · Specs Compare
Graphics Card
Release Date
Jul 2011
Jun 2017
Generation
Vancouver
Radeon Pro Mac
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
900 MHz
1695 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
115.2GB/s
217.0GB/s
Render Config
Compute Units
14
32
Shading Units
1120
2048
TMUs
56
128
ROPs
32
32
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
22.88 GPixel/s
35.07 GPixel/s
Texture Rate
40.04 GTexel/s
140.3 GTexel/s
FP32 (float)
1.602 TFLOPS
4.489 TFLOPS
FP16 (half)
—
4.489 TFLOPS
FP64 (double)
—
280.6 GFLOPS
Graphics Processor
GPU Name
Blackcomb
Polaris 20
GPU Variant
Blackcomb XTX(216-0811030)
Polaris 20 XL(215-0910052)
Architecture
TeraScale 2
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
40 nm
14 nm
Transistors
1.7 billion
5.7 billion
Die Size
212 mm²
232 mm²
Board Design
TDP
100W
150W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2
Shader Model
5.0
6.4
Benchmark
3DMark Time Spy
—
3,393
3DMark Time Spy Extreme
—
1,351
▲ Specs Compare
Data sourced from official specifications and benchmark tests.