NVIDIA GeForce GTX 660 OEM vs AMD Radeon RX 560
GPU · Specs Compare
Graphics Card
Release Date
Aug 2012
Apr 2017
Generation
GeForce 600
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
823 MHz
1175 MHz
Boost Clock
888 MHz
1275 MHz
Memory Clock
1400 MHz
1750 MHz
Memory
Memory Size
1536MB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
128bit
Bandwidth
134.4GB/s
112.0GB/s
Render Config
Shading Units
1152
1024
TMUs
96
64
ROPs
24
16
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
384 KB
1024 KB
Compute Units
—
16
Theoretical Performance
Pixel Rate
21.31 GPixel/s
20.40 GPixel/s
Texture Rate
85.25 GTexel/s
81.60 GTexel/s
FP32 (float)
2.046 TFLOPS
2.611 TFLOPS
FP64 (double)
85.25 GFLOPS
163.2 GFLOPS
FP16 (half)
—
2.611 TFLOPS
Graphics Processor
GPU Name
GK104
Polaris 21
GPU Variant
GK104-200-KD-A2
Polaris 21 XT(215-0908004)
Architecture
Kepler
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
3.54 billion
3 billion
Die Size
294 mm²
123 mm²
Board Design
TDP
130W
75W
Suggested PSU
300 W
250 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.1
1.2
CUDA
3.0
—
Shader Model
5.1
6.4
Benchmark
3DMark Time Spy
1,194
1,855
3DMark Time Spy Extreme
260
799
▲ Specs Compare
Data sourced from official specifications and benchmark tests.