AMD Radeon R9 M290X vs NVIDIA GeForce GTX 660
GPU · Specs Compare
Graphics Card
Release Date
Jan 2014
Sep 2012
Generation
Gem System
GeForce 600
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
850 MHz
980 MHz
Boost Clock
900 MHz
1032 MHz
Memory Clock
1200 MHz
1502 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
192bit
Bandwidth
153.6GB/s
144.2GB/s
Render Config
Compute Units
20
—
Shading Units
1280
960
TMUs
80
80
ROPs
32
24
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
384 KB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
20.64 GPixel/s
Texture Rate
72.00 GTexel/s
82.56 GTexel/s
FP32 (float)
2.304 TFLOPS
1.981 TFLOPS
FP64 (double)
144.0 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
Neptune
GK106
GPU Variant
Neptune XT(216-0847000)
GK106-400-A1
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
2.54 billion
Die Size
212 mm²
221 mm²
Board Design
TDP
100W
140W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
—
300 W
Graphics Features
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.1 (1.2)
3.0
Vulkan
1.2.170
1.1
Shader Model
6.5 (5.1)
5.1
CUDA
—
3.0
Benchmark
3DMark Time Spy
—
1,194
3DMark Time Spy Extreme
—
260
OctaneBench
—
27
Blender
—
111
▲ Specs Compare
Data sourced from official specifications and benchmark tests.