NVIDIA GeForce RTX 4080 SUPER vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce RTX 4080 SUPER

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 SUPER 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 4080 SUPER 's Advantages

Released 11 years and 9 months late

Boost Clock2550MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (736.3GB/s vs 91.87GB/s)

9952 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 SUPER +5741%

52.22 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

GeForce RTX 4080 SUPER

VS

GeForce GT 645 OEM

Graphics Card

Jan 2024

Release Date

Apr 2012

GeForce 40

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2295 MHz

Base Clock

-

2550 MHz

Boost Clock

-

1438 MHz

Memory Clock

957 MHz

Memory

16GB

Memory Size

1024MB

GDDR6X

Memory Type

GDDR5

256bit

Memory Bus

192bit

736.3GB/s

Bandwidth

91.87GB/s

Render Config

-

80

SM Count

6

10240

Shading Units

288

320

TMUs

48

112

ROPs

24

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

64 MB

L2 Cache

384 KB

-

Theoretical Performance

285.6 GPixel/s

Pixel Rate

9.312 GPixel/s

816.0 GTexel/s

Texture Rate

37.25 GTexel/s

52.22 TFLOPS

FP16 (half)

-

52.22 TFLOPS

FP32 (float)

894.0 GFLOPS

816.0 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

320W

TDP

102W

700 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 16-pin

Power Connectors

-

Graphics Processor

AD103

GPU Name

GF114

AD103-400-A1

GPU Variant

-

Ada Lovelace

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

45.9 billion

Transistors

1.95 billion

379 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

8.9

CUDA

2.1

6.7

Shader Model

5.1

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