Home GPU Comparison NVIDIA GeForce GT 640 vs NVIDIA GeForce RTX 2060

NVIDIA GeForce GT 640 vs NVIDIA GeForce RTX 2060

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 6GB VRAM GeForce RTX 2060 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 160W)
NVIDIA GeForce RTX 2060 's Advantages
Released 6 years and 7 months late
Boost Clock1680MHz
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (336.0GB/s vs 28.51GB/s)
1536 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 640
0.693 TFLOPS
GeForce RTX 2060 +830%
6.451 TFLOPS
VS

Graphics Card

Jun 2012
Release Date
Jan 2019
GeForce 600
Generation
GeForce 20
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
1365 MHz
-
Boost Clock
1680 MHz
891 MHz
Memory Clock
1750 MHz

Memory

2GB
Memory Size
6GB
DDR3
Memory Type
GDDR6
128bit
Memory Bus
192bit
28.51GB/s
Bandwidth
336.0GB/s

Render Config

-
-
-
-
SM Count
30
384
Shading Units
1920
32
TMUs
120
16
ROPs
48
-
Tensor Cores
240
-
RT Cores
30
16 KB (per SMX)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
3 MB
-
-
-

Theoretical Performance

7.216 GPixel/s
Pixel Rate
80.64 GPixel/s
28.86 GTexel/s
Texture Rate
201.6 GTexel/s
-
FP16 (half)
12.90 TFLOPS
692.7 GFLOPS
FP32 (float)
6.451 TFLOPS
28.86 GFLOPS
FP64 (double)
201.6 GFLOPS

Board Design

65W
TDP
160W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 2.0 2x DisplayPort 1.4a 1x USB Type-C
None
Power Connectors
1x 8-pin

Graphics Processor

GK107
GPU Name
TU106
GK107-300-A2
GPU Variant
TU106-200A-KA-A1
Kepler
Architecture
Turing
TSMC
Foundry
TSMC
28 nm
Process Size
12 nm
1.27 billion
Transistors
10.8 billion
118 mm²
Die Size
445 mm²

Graphics Features

12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
7.5
5.1
Shader Model
6.6

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