NVIDIA GeForce GT 640 vs AMD Radeon RX 6500 XT

VS

NVIDIA GeForce GT 640

AMD Radeon RX 6500 XT

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 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 640 's Advantages

Lower TDP (65W vs 107W)

AMD Radeon RX 6500 XT 's Advantages

Released 9 years and 7 months late

Boost Clock2815MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (143.9GB/s vs 28.51GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

Radeon RX 6500 XT +731%

5.765 TFLOPS

Blender

GeForce GT 640

32

Radeon RX 6500 XT +1684%

571

GeForce GT 640

VS

Radeon RX 6500 XT

Graphics Card

Jun 2012

Release Date

Jan 2022

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

-

Base Clock

2310 MHz

-

Boost Clock

2815 MHz

891 MHz

Memory Clock

2248 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

64bit

28.51GB/s

Bandwidth

143.9GB/s

Render Config

-

Compute Units

16

-

384

Shading Units

1024

32

TMUs

64

16

ROPs

32

-

RT Cores

16

16 KB (per SMX)

L1 Cache

128 KB per Array

256 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

7.216 GPixel/s

Pixel Rate

90.08 GPixel/s

28.86 GTexel/s

Texture Rate

180.2 GTexel/s

-

FP16 (half)

11.53 TFLOPS

692.7 GFLOPS

FP32 (float)

5.765 TFLOPS

28.86 GFLOPS

FP64 (double)

360.3 GFLOPS

Board Design

65W

TDP

107W

250 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

None

Power Connectors

1x 6-pin

Graphics Processor

GK107

GPU Name

Navi 24

GK107-300-A2

GPU Variant

Navi 24 XT (215-135000006)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

1.27 billion

Transistors

5.4 billion

118 mm²

Die Size

107 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.6

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