Home GPU Comparison NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 560

NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 560

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1024MB VRAM GeForce GTX 560 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 1 months late
More VRAM (2GB vs 1024GB)
48 additional rendering cores
Lower TDP (65W vs 150W)
NVIDIA GeForce GTX 560 's Advantages
Larger VRAM bandwidth (128.0GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)
GeForce GT 640
0.693 TFLOPS
GeForce GTX 560 +57%
1.089 TFLOPS
VS

Graphics Card

Jun 2012
Release Date
May 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
1000 MHz

Memory

2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
28.51GB/s
Bandwidth
128.0GB/s

Render Config

-
-
-
-
SM Count
7
384
Shading Units
336
32
TMUs
56
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
11.34 GPixel/s
28.86 GTexel/s
Texture Rate
45.36 GTexel/s
-
-
-
692.7 GFLOPS
FP32 (float)
1089 GFLOPS
28.86 GFLOPS
FP64 (double)
90.72 GFLOPS

Board Design

65W
TDP
150W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x mini-HDMI 1.3a
None
Power Connectors
2x 6-pin

Graphics Processor

GK107
GPU Name
GF114
GK107-300-A2
GPU Variant
GF114-325-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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