AMD Radeon RX 460 1024SP vs NVIDIA GeForce GT 640 OEM Rebrand

VS

AMD Radeon RX 460 1024SP

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 460 1024SP and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 460 1024SP 's Advantages

Released 4 years and 9 months late

Boost Clock1200MHz

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (112.0GB/s vs 38.40GB/s)

880 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 460 1024SP +492%

2.458 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon RX 460 1024SP

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Jan 2017

Release Date

Apr 2012

Arctic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1090 MHz

Base Clock

-

1200 MHz

Boost Clock

-

1750 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

192bit

112.0GB/s

Bandwidth

38.40GB/s

Render Config

16

Compute Units

-

SM Count

3

1024

Shading Units

144

64

TMUs

24

16

ROPs

24

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

384 KB

-

Theoretical Performance

19.20 GPixel/s

Pixel Rate

4.320 GPixel/s

76.80 GTexel/s

Texture Rate

17.28 GTexel/s

2.458 TFLOPS

FP16 (half)

-

2.458 TFLOPS

FP32 (float)

414.7 GFLOPS

153.6 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

75W

TDP

75W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

None

Graphics Processor

Baffin

GPU Name

GF116

Baffin XT

GPU Variant

GF116-150-A1

GCN 4.0

Architecture

Fermi 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

1.17 billion

123 mm²

Die Size

238 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.4

Shader Model

5.1

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