AMD Radeon 540 vs NVIDIA GeForce GT 640

VS

AMD Radeon 540

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 1024MB VRAM AMD Radeon 540 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 540 's Advantages

Released 4 years and 10 months late

Lower TDP (50W vs 65W)

NVIDIA GeForce GT 640 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.51GB/s vs 24.00GB/s)

Score

Benchmark

FP32 (float)

AMD Radeon 540 +31%

0.908 TFLOPS

GeForce GT 640

0.693 TFLOPS

AMD Radeon 540

VS

GeForce GT 640

Graphics Card

Apr 2017

Release Date

Jun 2012

Polaris

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

891 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

32bit

Memory Bus

128bit

24.00GB/s

Bandwidth

28.51GB/s

Render Config

6

Compute Units

-

384

Shading Units

384

24

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

18.93 GPixel/s

Pixel Rate

7.216 GPixel/s

28.39 GTexel/s

Texture Rate

28.86 GTexel/s

908.5 GFLOPS

FP16 (half)

-

908.5 GFLOPS

FP32 (float)

692.7 GFLOPS

56.78 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

2x DisplayPort 1.4a

Outputs

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

None

Power Connectors

None

Graphics Processor

Lexa

GPU Name

GK107

Lexa PRO (215-0904018)

GPU Variant

GK107-300-A2

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.27 billion

103 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.7

Shader Model

5.1

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