Home GPU Comparison NVIDIA GeForce GTX 650 Ti OEM vs NVIDIA GeForce GT 640

NVIDIA GeForce GTX 650 Ti OEM vs NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 650 Ti OEM and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 650 Ti OEM 's Advantages
Released 9 months late
Larger VRAM bandwidth (86.40GB/s vs 28.51GB/s)
384 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 110W)

Score

Benchmark

FP32 (float)
GeForce GTX 650 Ti OEM +105%
1.425 TFLOPS
GeForce GT 640
0.693 TFLOPS
VS

Graphics Card

Mar 2013
Release Date
Jun 2012
GeForce 600
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1350 MHz
Memory Clock
891 MHz

Memory

2GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
128bit
86.40GB/s
Bandwidth
28.51GB/s

Render Config

-
-
-
-
-
-
768
Shading Units
384
64
TMUs
32
16
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

14.85 GPixel/s
Pixel Rate
7.216 GPixel/s
59.39 GTexel/s
Texture Rate
28.86 GTexel/s
-
-
-
1425 GFLOPS
FP32 (float)
692.7 GFLOPS
59.39 GFLOPS
FP64 (double)
28.86 GFLOPS

Board Design

110W
TDP
65W
300 W
Suggested PSU
250 W
2x DVI 1x mini-HDMI 1.4a
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
None

Graphics Processor

GK106
GPU Name
GK107
-
GPU Variant
GK107-300-A2
Kepler
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.54 billion
Transistors
1.27 billion
221 mm²
Die Size
118 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.1
3.0
CUDA
3.0
5.1
Shader Model
5.1

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