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

VS

NVIDIA GeForce GT 640 OEM Rebrand

AMD Radeon RX 580 OEM

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 8GB VRAM Radeon RX 580 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 150W)

AMD Radeon RX 580 OEM 's Advantages

Released 4 years and 2 months late

Boost Clock1266MHz

More VRAM (8GB vs 1536GB)

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

2160 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon RX 580 OEM +1305%

5.834 TFLOPS

GeForce GT 640 OEM Rebrand

VS

Radeon RX 580 OEM

Graphics Card

Apr 2012

Release Date

Jun 2016

GeForce 600

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1120 MHz

-

Boost Clock

1266 MHz

800 MHz

Memory Clock

2000 MHz

Memory

1536MB

Memory Size

8GB

DDR3

Memory Type

GDDR5

192bit

Memory Bus

256bit

38.40GB/s

Bandwidth

256.0GB/s

Render Config

-

Compute Units

36

3

SM Count

-

144

Shading Units

2304

24

TMUs

144

24

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

2 MB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

40.51 GPixel/s

17.28 GTexel/s

Texture Rate

182.3 GTexel/s

-

FP16 (half)

5.834 TFLOPS

414.7 GFLOPS

FP32 (float)

5.834 TFLOPS

34.56 GFLOPS

FP64 (double)

364.6 GFLOPS

Board Design

75W

TDP

150W

250 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

1x 6-pin

Graphics Processor

GF116

GPU Name

Ellesmere

GF116-150-A1

GPU Variant

Polaris 10 XT (215-0876184)

Fermi 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.17 billion

Transistors

5.7 billion

238 mm²

Die Size

232 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.4

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