AMD Radeon RX 580 vs NVIDIA GeForce GTX 645 OEM

VS

AMD Radeon RX 580

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 's Advantages

Released 4 years late

Boost Clock1340MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.0GB/s vs 64.00GB/s)

1728 additional rendering cores

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580 +550%

6.175 TFLOPS

GeForce GTX 645 OEM

0.949 TFLOPS

Radeon RX 580

VS

GeForce GTX 645 OEM

Graphics Card

Apr 2017

Release Date

Apr 2013

Polaris

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1257 MHz

Base Clock

-

1340 MHz

Boost Clock

-

2000 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

64.00GB/s

Render Config

36

Compute Units

-

2304

Shading Units

576

144

TMUs

48

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

42.88 GPixel/s

Pixel Rate

9.888 GPixel/s

193.0 GTexel/s

Texture Rate

39.55 GTexel/s

6.175 TFLOPS

FP16 (half)

-

6.175 TFLOPS

FP32 (float)

949.2 GFLOPS

385.9 GFLOPS

FP64 (double)

39.55 GFLOPS

Board Design

185W

TDP

65W

450 W

Suggested PSU

250 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

GK106

Polaris 20 XTX (215-0910038)

GPU Variant

GK106-200-A1

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

2.54 billion

232 mm²

Die Size

221 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.4

Shader Model

5.1

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