NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 6500 XT

VS

NVIDIA GeForce GT 645 OEM

AMD Radeon RX 6500 XT

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 4GB VRAM Radeon RX 6500 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 107W)

AMD Radeon RX 6500 XT 's Advantages

Released 9 years and 9 months late

Boost Clock2815MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (143.9GB/s vs 91.87GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

Radeon RX 6500 XT +544%

5.765 TFLOPS

GeForce GT 645 OEM

VS

Radeon RX 6500 XT

Graphics Card

Apr 2012

Release Date

Jan 2022

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

-

Base Clock

2310 MHz

-

Boost Clock

2815 MHz

957 MHz

Memory Clock

2248 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

64bit

91.87GB/s

Bandwidth

143.9GB/s

Render Config

-

Compute Units

16

6

SM Count

-

288

Shading Units

1024

48

TMUs

64

24

ROPs

32

-

RT Cores

16

64 KB (per SM)

L1 Cache

128 KB per Array

384 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

9.312 GPixel/s

Pixel Rate

90.08 GPixel/s

37.25 GTexel/s

Texture Rate

180.2 GTexel/s

-

FP16 (half)

11.53 TFLOPS

894.0 GFLOPS

FP32 (float)

5.765 TFLOPS

74.50 GFLOPS

FP64 (double)

360.3 GFLOPS

Board Design

102W

TDP

107W

300 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

-

Power Connectors

1x 6-pin

Graphics Processor

GF114

GPU Name

Navi 24

-

GPU Variant

Navi 24 XT (215-135000006)

Fermi 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

6 nm

1.95 billion

Transistors

5.4 billion

332 mm²

Die Size

107 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.1

OpenCL

2.2

N/A

Vulkan

1.3

2.1

CUDA

-

5.1

Shader Model

6.6

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