AMD Radeon HD 6990 vs AMD Radeon Pro Vega 64
GPU Specs Compare
Graphics Card
Release Date
Mar 2011
Jun 2017
Generation
Northern Islands
Radeon Pro Mac
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
786 MHz
Base Clock
-
1250 MHz
Boost Clock
-
1350 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
HBM2
Memory Bus
256bit
2048bit
Bandwidth
160.0GB/s
402.4GB/s
Render Config
Compute Units
24
64
Shading Units
1536
4096
TMUs
96
256
ROPs
32
64
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
Theoretical Performance
Pixel Rate
26.56 GPixel/s
86.40 GPixel/s
Texture Rate
79.68 GTexel/s
345.6 GTexel/s
FP32 (float)
2.550 TFLOPS
11.06 TFLOPS
FP64 (double)
637.4 GFLOPS
691.2 GFLOPS
FP16 (half)
-
22.12 TFLOPS
Graphics Processor
GPU Name
Antilles
Vega 10
GPU Variant
Antilles XT(215-0807027)
Vega 10 XT(215-0894200)
Architecture
TeraScale 3
GCN 5.0
Foundry
TSMC
GlobalFoundries
Process Size
40 nm
14 nm
Transistors
2.64 billion
12.5 billion
Die Size
389 mm²
495 mm²
Board Design
TDP
375W
250W
Suggested PSU
750 W
-
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2
Shader Model
5.0
6.4