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GPU Comparison
NVIDIA GeForce GTX 660 vs AMD Radeon HD 7720 OEM
NVIDIA GeForce GTX 660 vs AMD Radeon HD 7720 OEM
VS
NVIDIA GeForce GTX 660
AMD Radeon HD 7720 OEM
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 1024MB VRAM Radeon HD 7720 OEM 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 134.4GB/s)
160 additional rendering cores
Lower TDP (140W vs 150W)
AMD Radeon HD 7720 OEM 's Advantages
Released 6 months late
Score
Benchmark
FP32 (float)
GeForce GTX 660
+47%
1.981 TFLOPS
Radeon HD 7720 OEM
1.344 TFLOPS
GeForce GTX 660
VS
Radeon HD 7720 OEM
Graphics Card
Sep 2012
Release Date
Mar 2013
GeForce 600
Generation
Southern Islands
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
1050 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
192bit
Memory Bus
256bit
144.2GB/s
Bandwidth
134.4GB/s
Render Config
-
SM Count
-
-
Compute Units
10
960
Shading Units
800
80
TMUs
40
24
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
8 KB (per CU)
384 KB
L2 Cache
512 KB
Theoretical Performance
20.64 GPixel/s
Pixel Rate
26.88 GPixel/s
82.56 GTexel/s
Texture Rate
33.60 GTexel/s
-
FP16 (half)
-
1.981 TFLOPS
FP32 (float)
1344 GFLOPS
82.56 GFLOPS
FP64 (double)
-
Graphics Processor
GK106
GPU Name
Barts
GK106-400-A1
GPU Variant
Barts LE (215-0798002)
Kepler
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
2.54 billion
Transistors
1.7 billion
221 mm²
Die Size
255 mm²
Board Design
140W
TDP
150W
300 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
1x 6-pin
Power Connectors
-
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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