NVIDIA GeForce GTX 660 OEM vs AMD Radeon R9 M290X Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Aug 2012
Nov 2014
Generation
GeForce 600
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
823 MHz
850 MHz
Boost Clock
888 MHz
975 MHz
Memory Clock
1400 MHz
1365 MHz
Memory
Memory Size
1536MB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
256bit
Bandwidth
134.4GB/s
174.7GB/s
Render Config
Shading Units
1152
1024
TMUs
96
64
ROPs
24
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
384 KB
512 KB
Compute Units
-
16
Theoretical Performance
Pixel Rate
21.31 GPixel/s
31.20 GPixel/s
Texture Rate
85.25 GTexel/s
62.40 GTexel/s
FP32 (float)
2.046 TFLOPS
1.997 TFLOPS
FP64 (double)
85.25 GFLOPS
124.8 GFLOPS
Graphics Processor
GPU Name
GK104
Pitcairn
GPU Variant
GK104-200-KD-A2
Pitcairn PRO(215-0828062)
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
2.8 billion
Die Size
294 mm²
212 mm²
Board Design
TDP
130W
80W
Suggested PSU
300 W
-
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.1
1.2
CUDA
3.0
-
Shader Model
5.1
5.1
📊 Benchmark
3DMark Time Spy
1,194
-
3DMark Time Spy Extreme
260
-