GeForce GT 140 OEM vs GeForce GT 640
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 140 OEM and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GT 140 OEM 's Advantages
Larger VRAM bandwidth (57.60GB/s vs 28.51GB/s)
GeForce GT 640 's Advantages
Released 3 years and 3 months late
More VRAM (2GB vs 1024GB)
320 additional rendering cores
Lower TDP (65W vs 105W)
Score
Benchmark
FP32 (float)
GeForce GT 140 OEM
208
GeForce GT 640
+233%
693
Graphics Card
Mar 2009
Release Date
Jun 2012
GeForce 100
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
900 MHz
Memory Clock
891 MHz
Memory
1024MB
Memory Size
2GB
GDDR3
Memory Type
DDR3
256bit
Memory Bus
128bit
57.60GB/s
Bandwidth
28.51GB/s
Render Config
8
SM Count
-
64
Shading Units
384
32
TMUs
32
16
ROPs
16
-
L1 Cache
16 KB (per SMX)
64 KB
L2 Cache
256 KB
Theoretical Performance
10.40 GPixel/s
Pixel Rate
7.216 GPixel/s
20.80 GTexel/s
Texture Rate
28.86 GTexel/s
208.0 GFLOPS
FP32 (float)
692.7 GFLOPS
-
FP64 (double)
28.86 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
GK107
-
GPU Variant
GK107-300-A2
Tesla
Architecture
Kepler
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.505 billion
Transistors
1.27 billion
196 mm²
Die Size
118 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
