NVIDIA GeForce RTX 2080 vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce RTX 2080

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 2080 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 2080 's Advantages

Released 6 years and 5 months late

Boost Clock1710MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (448.0GB/s vs 91.87GB/s)

2656 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 215W)

Score

Benchmark

FP32 (float)

GeForce RTX 2080 +1026%

10.07 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

GeForce RTX 2080

VS

GeForce GT 645 OEM

Graphics Card

Sep 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

1515 MHz

Base Clock

-

1710 MHz

Boost Clock

-

1750 MHz

Memory Clock

957 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

448.0GB/s

Bandwidth

91.87GB/s

Render Config

-

46

SM Count

6

2944

Shading Units

288

184

TMUs

48

64

ROPs

24

368

Tensor Cores

-

46

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

4 MB

L2 Cache

384 KB

-

Theoretical Performance

109.4 GPixel/s

Pixel Rate

9.312 GPixel/s

314.6 GTexel/s

Texture Rate

37.25 GTexel/s

20.14 TFLOPS

FP16 (half)

-

10.07 TFLOPS

FP32 (float)

894.0 GFLOPS

314.6 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

215W

TDP

102W

550 W

Suggested PSU

300 W

1x HDMI 2.0 3x DisplayPort 1.4a 1x USB Type-C

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

TU104

GPU Name

GF114

TU104-400A-A1

GPU Variant

-

Turing

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

12 nm

Process Size

40 nm

13.6 billion

Transistors

1.95 billion

545 mm²

Die Size

332 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

Related GPU Comparisons

1

NVIDIA GeForce RTX 2080 vs 3dfx Voodoo4-2 4200 AGP

2

NVIDIA GeForce RTX 2080 vs NVIDIA GeForce RTX 3060 12 GB GA104

3

NVIDIA GeForce RTX 2080 vs AMD Radeon R9 380

4

NVIDIA GeForce RTX 2080 vs AMD Radeon Pro W6400

5

NVIDIA GeForce RTX 2080 vs NVIDIA GeForce GTS 450 Rev. 2

6

NVIDIA GeForce RTX 2080 vs AMD Radeon RX 6750 GRE

7

NVIDIA GeForce RTX 2080 vs ATI Radeon HD 4860

8

NVIDIA GeForce RTX 2080 vs AMD Radeon RX 8800 XT

9

NVIDIA GeForce RTX 2080 vs NVIDIA GeForce 9600 GT

10

NVIDIA GeForce RTX 2080 vs ATI Radeon HD 5750

Related News

1

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

2

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

3

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

4

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

5

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

6

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

7

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

8

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

9

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game

10

World's First! Intel Arc B580 Graphics Card Arrives Early