AMD Radeon RX 6500 XT vs NVIDIA GeForce GTX 645 OEM

VS

AMD Radeon RX 6500 XT

NVIDIA GeForce GTX 645 OEM

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

Main Differences

AMD Radeon RX 6500 XT 's Advantages

Released 8 years and 9 months late

Boost Clock2815MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (143.9GB/s vs 64.00GB/s)

448 additional rendering cores

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 107W)

Score

Benchmark

FP32 (float)

Radeon RX 6500 XT +507%

5.765 TFLOPS

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon RX 6500 XT

VS

GeForce GTX 645 OEM

Graphics Card

Jan 2022

Release Date

Apr 2013

Navi II

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x16

Clock Speeds

2310 MHz

Base Clock

-

2815 MHz

Boost Clock

-

2248 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

128bit

143.9GB/s

Bandwidth

64.00GB/s

Render Config

16

Compute Units

-

1024

Shading Units

576

64

TMUs

48

32

ROPs

16

-

16

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

16 MB

L3 Cache

-

Theoretical Performance

90.08 GPixel/s

Pixel Rate

9.888 GPixel/s

180.2 GTexel/s

Texture Rate

39.55 GTexel/s

11.53 TFLOPS

FP16 (half)

-

5.765 TFLOPS

FP32 (float)

949.2 GFLOPS

360.3 GFLOPS

FP64 (double)

39.55 GFLOPS

Board Design

107W

TDP

65W

300 W

Suggested PSU

250 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin

Power Connectors

None

Graphics Processor

Navi 24

GPU Name

GK106

Navi 24 XT (215-135000006)

GPU Variant

GK106-200-A1

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

6 nm

Process Size

28 nm

5.4 billion

Transistors

2.54 billion

107 mm²

Die Size

221 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.6

Shader Model

5.1

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