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GPU Comparison
NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 560 Ti X2
NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 560 Ti X2
VS
NVIDIA GeForce GT 640
NVIDIA GeForce GTX 560 Ti X2
We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1024MB VRAM GeForce GTX 560 Ti X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640 's Advantages
Released 1 years and 5 months late
More VRAM (2GB vs 1024GB)
Lower TDP (65W vs 170W)
NVIDIA GeForce GTX 560 Ti X2 's Advantages
Larger VRAM bandwidth (128.3GB/s vs 28.51GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 640
0.693 TFLOPS
GeForce GTX 560 Ti X2
+88%
1.306 TFLOPS
GeForce GT 640
VS
GeForce GTX 560 Ti X2
Graphics Card
Jun 2012
Release Date
Jan 2011
GeForce 600
Generation
GeForce 500
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
891 MHz
Memory Clock
1002 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
28.51GB/s
Bandwidth
128.3GB/s
Render Config
-
-
-
-
SM Count
8
384
Shading Units
384
32
TMUs
64
16
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
7.216 GPixel/s
Pixel Rate
13.60 GPixel/s
28.86 GTexel/s
Texture Rate
54.40 GTexel/s
-
-
-
692.7 GFLOPS
FP32 (float)
1306 GFLOPS
28.86 GFLOPS
FP64 (double)
108.8 GFLOPS
Board Design
65W
TDP
170W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
3x DVI 1x mini-HDMI 1.3a
None
Power Connectors
2x 8-pin
Graphics Processor
GK107
GPU Name
GF114
GK107-300-A2
GPU Variant
GF114-400-A1
Kepler
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.27 billion
Transistors
1.95 billion
118 mm²
Die Size
332 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1
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