AMD Radeon Pro Vega 20 vs NVIDIA GeForce GTX 660 Ti
GPU Specs Compare
Graphics Card
Release Date
Nov 2018
Aug 2012
Generation
Radeon Pro Mac
GeForce 600
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
815 MHz
915 MHz
Boost Clock
1283 MHz
980 MHz
Memory Clock
740 MHz
1502 MHz
Memory
Memory Size
4GB
2GB
Memory Type
HBM2
GDDR5
Memory Bus
1024bit
192bit
Bandwidth
189.4GB/s
144.2GB/s
Render Config
Compute Units
20
-
Shading Units
1280
1344
TMUs
80
112
ROPs
32
24
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
1024 KB
384 KB
Theoretical Performance
Pixel Rate
41.06 GPixel/s
27.44 GPixel/s
Texture Rate
102.6 GTexel/s
109.8 GTexel/s
FP16 (half)
6.569 TFLOPS
-
FP32 (float)
3.284 TFLOPS
2.634 TFLOPS
FP64 (double)
205.3 GFLOPS
109.8 GFLOPS
Graphics Processor
GPU Name
Vega 12
GK104
GPU Variant
Vega 12 XTA
GK104-300-KD-A2
Architecture
GCN 5.0
Kepler
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
Unknown
3.54 billion
Die Size
Unknown
294 mm²
Board Design
TDP
100W
150W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Suggested PSU
-
450 W
Power Connectors
-
2x 6-pin
Graphics Features
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.1
Shader Model
6.3
5.1
CUDA
-
3.0
📊 Benchmark
3DMark Time Spy
2,596
-
3DMark Time Spy Extreme
1,211
-