AMD Radeon RX 580X vs NVIDIA GeForce GT 640 OEM

VS

AMD Radeon RX 580X

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580X and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X 's Advantages

Released 6 years late

Boost Clock1340MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 28.51GB/s)

1920 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580X +908%

6.175 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

Radeon RX 580X

VS

GeForce GT 640 OEM

Graphics Card

Apr 2018

Release Date

Apr 2012

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

891 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

28.51GB/s

Render Config

36

Compute Units

-

2304

Shading Units

384

144

TMUs

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

6.376 GPixel/s

193.0 GTexel/s

Texture Rate

25.50 GTexel/s

6.175 TFLOPS

FP16 (half)

-

6.175 TFLOPS

FP32 (float)

612.1 GFLOPS

385.9 GFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

185W

TDP

50W

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

GK107

Polaris 20 XTX (215-0910038)

GPU Variant

GK107-320-A2

GCN 4.0

Architecture

Kepler

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

1.27 billion

232 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.4

Shader Model

5.1

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