AMD Radeon Pro 580 vs NVIDIA GeForce GTX 660
GPU Specs Compare
Graphics Card
Release Date
Jun 2017
Sep 2012
Generation
Radeon Pro Mac
GeForce 600
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1100 MHz
980 MHz
Boost Clock
1200 MHz
1032 MHz
Memory Clock
1695 MHz
1502 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
192bit
Bandwidth
217.0GB/s
144.2GB/s
Render Config
Compute Units
36
-
Shading Units
2304
960
TMUs
144
80
ROPs
32
24
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
2 MB
384 KB
Theoretical Performance
Pixel Rate
38.40 GPixel/s
20.64 GPixel/s
Texture Rate
172.8 GTexel/s
82.56 GTexel/s
FP16 (half)
5.530 TFLOPS
-
FP32 (float)
5.530 TFLOPS
1.981 TFLOPS
FP64 (double)
345.6 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
Ellesmere
GK106
GPU Variant
Ellesmere XTA(216-0886220)
GK106-400-A1
Architecture
GCN 4.0
Kepler
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
2.54 billion
Die Size
232 mm²
221 mm²
Board Design
TDP
185W
140W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
-
300 W
Graphics Features
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.1
Shader Model
6.4
5.1
CUDA
-
3.0
📊 Benchmark
3DMark Time Spy
3,791
1,194
3DMark Time Spy Extreme
1,684
260
OctaneBench
-
27
Blender
-
111