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GPU Comparison
NVIDIA GeForce GTX 660 Rev. 2 vs ATI Radeon HD 3450
NVIDIA GeForce GTX 660 Rev. 2 vs ATI Radeon HD 3450
VS
NVIDIA GeForce GTX 660 Rev. 2
ATI Radeon HD 3450
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 256MB VRAM Radeon HD 3450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660 Rev. 2 's Advantages
Released 6 years and 9 months late
Boost Clock1032MHz
Larger VRAM bandwidth (144.2GB/s vs 8.000GB/s)
920 additional rendering cores
ATI Radeon HD 3450 's Advantages
Lower TDP (25W vs 140W)
Score
Benchmark
FP32 (float)
GeForce GTX 660 Rev. 2
+4027%
1.981 TFLOPS
Radeon HD 3450
0.048 TFLOPS
GeForce GTX 660 Rev. 2
VS
Radeon HD 3450
Graphics Card
Sep 2014
Release Date
Dec 2007
GeForce 600
Generation
Radeon R600
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
256MB
GDDR5
Memory Type
DDR2
192bit
Memory Bus
64bit
144.2GB/s
Bandwidth
8.000GB/s
Render Config
-
SM Count
-
-
Compute Units
2
960
Shading Units
40
80
TMUs
4
24
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
-
384 KB
L2 Cache
64 KB
Theoretical Performance
20.64 GPixel/s
Pixel Rate
2.400 GPixel/s
82.56 GTexel/s
Texture Rate
2.400 GTexel/s
-
FP16 (half)
-
1.981 TFLOPS
FP32 (float)
48.00 GFLOPS
82.56 GFLOPS
FP64 (double)
-
Graphics Processor
GK104
GPU Name
RV620
-
GPU Variant
RV620 LE
Kepler
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
3.54 billion
Transistors
0.181 billion
294 mm²
Die Size
67 mm²
Board Design
140W
TDP
25W
300 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x VGA 1x S-Video
1x 6-pin
Power Connectors
None
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
N/A
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
4.1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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