NVIDIA GeForce GTX 645 OEM vs AMD Radeon RX 560

VS

NVIDIA GeForce GTX 645 OEM

AMD Radeon RX 560

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 4GB VRAM Radeon RX 560 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 75W)

AMD Radeon RX 560 's Advantages

Released 4 years late

Boost Clock1275MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (112.0GB/s vs 64.00GB/s)

448 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon RX 560 +175%

2.611 TFLOPS

GeForce GTX 645 OEM

VS

Radeon RX 560

Graphics Card

Apr 2013

Release Date

Apr 2017

GeForce 600

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1175 MHz

-

Boost Clock

1275 MHz

1000 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

112.0GB/s

Render Config

-

Compute Units

16

-

576

Shading Units

1024

48

TMUs

64

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

20.40 GPixel/s

39.55 GTexel/s

Texture Rate

81.60 GTexel/s

-

FP16 (half)

2.611 TFLOPS

949.2 GFLOPS

FP32 (float)

2.611 TFLOPS

39.55 GFLOPS

FP64 (double)

163.2 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

GK106

GPU Name

Polaris 21

GK106-200-A1

GPU Variant

Polaris 21 XT (215-0908004)

Kepler

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.54 billion

Transistors

3 billion

221 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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