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GPU Comparison
NVIDIA GeForce GTX 660 vs ATI Radeon HD 5490
NVIDIA GeForce GTX 660 vs ATI Radeon HD 5490
VS
NVIDIA GeForce GTX 660
ATI Radeon HD 5490
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 1024MB VRAM Radeon HD 5490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660 's Advantages
Boost Clock1032MHz
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (144.2GB/s vs 8.000GB/s)
880 additional rendering cores
ATI Radeon HD 5490 's Advantages
Lower TDP (19W vs 140W)
Score
Benchmark
FP32 (float)
GeForce GTX 660
+1804%
1.981 TFLOPS
Radeon HD 5490
0.104 TFLOPS
GeForce GTX 660
VS
Radeon HD 5490
Graphics Card
Sep 2012
Release Date
Oct 2012
GeForce 600
Generation
Evergreen
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
980 MHz
Base Clock
-
1032 MHz
Boost Clock
-
1502 MHz
Memory Clock
500 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR3
192bit
Memory Bus
64bit
144.2GB/s
Bandwidth
8.000GB/s
Render Config
-
SM Count
-
-
Compute Units
2
960
Shading Units
80
80
TMUs
8
24
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
8 KB (per CU)
384 KB
L2 Cache
128 KB
Theoretical Performance
20.64 GPixel/s
Pixel Rate
2.600 GPixel/s
82.56 GTexel/s
Texture Rate
5.200 GTexel/s
-
FP16 (half)
-
1.981 TFLOPS
FP32 (float)
104.0 GFLOPS
82.56 GFLOPS
FP64 (double)
-
Graphics Processor
GK106
GPU Name
Cedar
GK106-400-A1
GPU Variant
Cedar XTX
Kepler
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
2.54 billion
Transistors
0.292 billion
221 mm²
Die Size
59 mm²
Board Design
140W
TDP
19W
300 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
1x 6-pin
Power Connectors
None
Graphics Features
12 (11_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
5.0
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