Home GPU Comparison NVIDIA GeForce GT 140 OEM vs NVIDIA GeForce GTX 645 OEM

NVIDIA GeForce GT 140 OEM vs NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 140 OEM and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages
Released 4 years and 1 months late
Larger VRAM bandwidth (64.00GB/s vs 57.60GB/s)
512 additional rendering cores
Lower TDP (65W vs 105W)

Score

Benchmark

FP32 (float)
GeForce GT 140 OEM
0.208 TFLOPS
GeForce GTX 645 OEM +356%
0.949 TFLOPS
VS

Graphics Card

Mar 2009
Release Date
Apr 2013
GeForce 100
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
900 MHz
Memory Clock
1000 MHz

Memory

1024MB
Memory Size
1024MB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
128bit
57.60GB/s
Bandwidth
64.00GB/s

Render Config

-
-
-
8
SM Count
-
64
Shading Units
576
32
TMUs
48
16
ROPs
16
-
-
-
-
-
-
-
L1 Cache
16 KB (per SMX)
64 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

10.40 GPixel/s
Pixel Rate
9.888 GPixel/s
20.80 GTexel/s
Texture Rate
39.55 GTexel/s
-
-
-
208.0 GFLOPS
FP32 (float)
949.2 GFLOPS
-
FP64 (double)
39.55 GFLOPS

Board Design

105W
TDP
65W
300 W
Suggested PSU
250 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
None

Graphics Processor

G94B
GPU Name
GK106
-
GPU Variant
GK106-200-A1
Tesla
Architecture
Kepler
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.505 billion
Transistors
2.54 billion
196 mm²
Die Size
221 mm²

Graphics Features

11.1 (10_0)
DirectX
12 (11_0)
3.3
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
1.1
CUDA
3.0
4.0
Shader Model
5.1

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