NVIDIA GeForce RTX 2070 vs NVIDIA GeForce GT 640 OEM Rebrand

VS

NVIDIA GeForce RTX 2070

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 2070 and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 2070 's Advantages

Released 6 years and 6 months late

Boost Clock1620MHz

More VRAM (8GB vs 1536GB)

Larger VRAM bandwidth (448.0GB/s vs 38.40GB/s)

2160 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 175W)

Score

Benchmark

FP32 (float)

GeForce RTX 2070 +1698%

7.465 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce RTX 2070

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Oct 2018

Release Date

Apr 2012

GeForce 20

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1410 MHz

Base Clock

-

1620 MHz

Boost Clock

-

1750 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

1536MB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

192bit

448.0GB/s

Bandwidth

38.40GB/s

Render Config

-

36

SM Count

3

2304

Shading Units

144

TMUs

24

64

ROPs

24

288

Tensor Cores

-

36

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

384 KB

-

Theoretical Performance

103.7 GPixel/s

Pixel Rate

4.320 GPixel/s

233.3 GTexel/s

Texture Rate

17.28 GTexel/s

14.93 TFLOPS

FP16 (half)

-

7.465 TFLOPS

FP32 (float)

414.7 GFLOPS

233.3 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

175W

TDP

75W

450 W

Suggested PSU

250 W

1x DVI 1x HDMI 2.0 2x DisplayPort 1.4a 1x USB Type-C

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 8-pin

Power Connectors

None

Graphics Processor

TU106

GPU Name

GF116

TU106-400A-A1

GPU Variant

GF116-150-A1

Turing

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

12 nm

Process Size

40 nm

10.8 billion

Transistors

1.17 billion

445 mm²

Die Size

238 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

7.5

CUDA

2.1

6.6

Shader Model

5.1

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