NVIDIA GeForce GT 640 vs AMD Radeon RX 460 1024SP

VS

NVIDIA GeForce GT 640

AMD Radeon RX 460 1024SP

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 2GB VRAM Radeon RX 460 1024SP 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 75W)

AMD Radeon RX 460 1024SP 's Advantages

Released 4 years and 7 months late

Boost Clock1200MHz

Larger VRAM bandwidth (112.0GB/s vs 28.51GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

Radeon RX 460 1024SP +254%

2.458 TFLOPS

GeForce GT 640

VS

Radeon RX 460 1024SP

Graphics Card

Jun 2012

Release Date

Jan 2017

GeForce 600

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1090 MHz

-

Boost Clock

1200 MHz

891 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

112.0GB/s

Render Config

-

Compute Units

16

-

384

Shading Units

1024

32

TMUs

64

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

19.20 GPixel/s

28.86 GTexel/s

Texture Rate

76.80 GTexel/s

-

FP16 (half)

2.458 TFLOPS

692.7 GFLOPS

FP32 (float)

2.458 TFLOPS

28.86 GFLOPS

FP64 (double)

153.6 GFLOPS

Board Design

65W

TDP

75W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

Baffin

GK107-300-A2

GPU Variant

Baffin XT

Kepler

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.27 billion

Transistors

3 billion

118 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.4

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