AMD Radeon RX 580X vs NVIDIA GeForce GT 640 OEM Rebrand

VS

AMD Radeon RX 580X NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580X 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 580X 's Advantages

Released 6 years late

Boost Clock1340MHz

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (256.0GB/s vs 38.40GB/s)

2160 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 185W)

Score

Benchmark

FP32 (float)

Radeon RX 580X +1387%

6.175 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon RX 580X

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Apr 2018

Release Date

Apr 2012

Polaris

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1257 MHz

Base Clock

-

1340 MHz

Boost Clock

-

2000 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

192bit

256.0GB/s

Bandwidth

38.40GB/s

Render Config

-

SM Count

3

36

Compute Units

-

2304

Shading Units

144

TMUs

24

32

ROPs

24

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

384 KB

Theoretical Performance

42.88 GPixel/s

Pixel Rate

4.320 GPixel/s

193.0 GTexel/s

Texture Rate

17.28 GTexel/s

6.175 TFLOPS

FP16 (half)

-

6.175 TFLOPS

FP32 (float)

414.7 GFLOPS

385.9 GFLOPS

FP64 (double)

34.56 GFLOPS

Graphics Processor

Polaris 20

GPU Name

GF116

Polaris 20 XTX (215-0910038)

GPU Variant

GF116-150-A1

GCN 4.0

Architecture

Fermi 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

1.17 billion

232 mm²

Die Size

238 mm²

Board Design

185W

TDP

75W

450 W

Suggested PSU

250 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 8-pin

Power Connectors

None

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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