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

NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce GTX 560 OEM

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 1280MB VRAM GeForce GTX 560 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages
More VRAM (1536GB vs 1280GB)
Lower TDP (75W vs 150W)
NVIDIA GeForce GTX 560 OEM 's Advantages
Larger VRAM bandwidth (128.3GB/s vs 38.40GB/s)
240 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 640 OEM Rebrand
0.415 TFLOPS
GeForce GTX 560 OEM +104%
0.848 TFLOPS
VS

Graphics Card

Apr 2012
Release Date
Nov 2011
GeForce 600
Generation
GeForce 500
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
800 MHz
Memory Clock
802 MHz

Memory

1536MB
Memory Size
1280MB
DDR3
Memory Type
GDDR5
192bit
Memory Bus
320bit
38.40GB/s
Bandwidth
128.3GB/s

Render Config

-
-
-
3
SM Count
12
144
Shading Units
384
24
TMUs
48
24
ROPs
40
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
64 KB (per SM)
384 KB
L2 Cache
640 KB
-
-
-

Theoretical Performance

4.320 GPixel/s
Pixel Rate
13.25 GPixel/s
17.28 GTexel/s
Texture Rate
26.50 GTexel/s
-
-
-
414.7 GFLOPS
FP32 (float)
847.9 GFLOPS
34.56 GFLOPS
FP64 (double)
106.0 GFLOPS

Board Design

75W
TDP
150W
250 W
Suggested PSU
450 W
2x DVI 1x mini-HDMI 1.3a
Outputs
1x DVI 1x HDMI 1.3a
None
Power Connectors
1x 6-pin

Graphics Processor

GF116
GPU Name
GF110
GF116-150-A1
GPU Variant
GF110-040-A1
Fermi 2.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.17 billion
Transistors
3 billion
238 mm²
Die Size
520 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
2.0
5.1
Shader Model
5.1

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