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GPU Comparison
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GTX 780
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GTX 780
VS
NVIDIA GeForce GT 640 Rev. 2
NVIDIA GeForce GTX 780
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 and 3GB VRAM GeForce GTX 780 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640 Rev. 2 's Advantages
Lower TDP (49W vs 250W)
NVIDIA GeForce GTX 780 's Advantages
Boost Clock902MHz
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (288.4GB/s vs 40.06GB/s)
1920 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 640 Rev. 2
0.803 TFLOPS
GeForce GTX 780
+417%
4.156 TFLOPS
GeForce GT 640 Rev. 2
VS
GeForce GTX 780
Graphics Card
May 2013
Release Date
May 2013
GeForce 600
Generation
GeForce 700
Desktop
Type
Desktop
PCIe 2.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
863 MHz
-
Boost Clock
902 MHz
1252 MHz
Memory Clock
1502 MHz
Memory
1024MB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
384bit
40.06GB/s
Bandwidth
288.4GB/s
Render Config
-
SM Count
-
-
Compute Units
-
384
Shading Units
2304
32
TMUs
192
8
ROPs
48
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
1536 KB
Theoretical Performance
8.368 GPixel/s
Pixel Rate
43.30 GPixel/s
33.47 GTexel/s
Texture Rate
173.2 GTexel/s
-
FP16 (half)
-
803.3 GFLOPS
FP32 (float)
4.156 TFLOPS
33.47 GFLOPS
FP64 (double)
173.2 GFLOPS
Graphics Processor
GK208
GPU Name
GK110
GK208-400-A1
GPU Variant
GK110-300-A1
Kepler 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.02 billion
Transistors
7.08 billion
87 mm²
Die Size
561 mm²
Board Design
49W
TDP
250W
200 W
Suggested PSU
600 W
1x DVI 1x HDMI 1.4a 1x VGA
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.1
3.5
CUDA
3.5
5.1
Shader Model
5.1
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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
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GTX 1060 6 GB GP104
8
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GTX 590
9
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GT 520 PCIe x1
10
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce RTX 2080 Ti 12 GB
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