Home GPU Comparison NVIDIA GeForce GTX 1070 Ti vs NVIDIA GeForce GT 640 Rev. 2

NVIDIA GeForce GTX 1070 Ti vs NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1070 Ti and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1070 Ti 's Advantages
Released 4 years and 6 months late
Boost Clock1683MHz
More VRAM (8GB vs 1GB)
Larger VRAM bandwidth (256.3GB/s vs 40.06GB/s)
2048 additional rendering cores
NVIDIA GeForce GT 640 Rev. 2 's Advantages
Lower TDP (49W vs 180W)

Score

Benchmark

FP32 (float)
GeForce GTX 1070 Ti +919%
8.186 TFLOPS
GeForce GT 640 Rev. 2
0.803 TFLOPS
VS

Graphics Card

Nov 2017
Release Date
May 2013
GeForce 10
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x8

Clock Speeds

1607 MHz
Base Clock
-
1683 MHz
Boost Clock
-
2002 MHz
Memory Clock
1252 MHz

Memory

8GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
64bit
256.3GB/s
Bandwidth
40.06GB/s

Render Config

19
SM Count
-
-
Compute Units
-
2432
Shading Units
384
152
TMUs
32
64
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
512 KB

Theoretical Performance

107.7 GPixel/s
Pixel Rate
8.368 GPixel/s
255.8 GTexel/s
Texture Rate
33.47 GTexel/s
127.9 GFLOPS
FP16 (half)
-
8.186 TFLOPS
FP32 (float)
803.3 GFLOPS
255.8 GFLOPS
FP64 (double)
33.47 GFLOPS

Graphics Processor

GP104
GPU Name
GK208
GP104-300-A1
GPU Variant
GK208-400-A1
Pascal
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
16 nm
Process Size
28 nm
7.2 billion
Transistors
1.02 billion
314 mm²
Die Size
87 mm²

Board Design

180W
TDP
49W
450 W
Suggested PSU
200 W
1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.4a 1x VGA
1x 8-pin
Power Connectors
None

Graphics Features

12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
6.1
CUDA
3.5
6.4
Shader Model
5.1

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