NVIDIA GeForce GTX 580 Rev. 2 vs NVIDIA GeForce GT 640 OEM Rebrand

VS

NVIDIA GeForce GTX 580 Rev. 2 NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 580 Rev. 2 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

NVIDIA GeForce GTX 580 Rev. 2 's Advantages

Larger VRAM bandwidth (192.4GB/s vs 38.40GB/s)

368 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 10 months late

Lower TDP (75W vs 244W)

Score

Benchmark

FP32 (float)

GeForce GTX 580 Rev. 2 +280%

1.581 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce GTX 580 Rev. 2

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Jun 2011

Release Date

Apr 2012

GeForce 500

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1002 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

192bit

192.4GB/s

Bandwidth

38.40GB/s

Render Config

16

SM Count

3

-

Compute Units

-

512

Shading Units

144

64

TMUs

24

48

ROPs

24

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

384 KB

Theoretical Performance

24.70 GPixel/s

Pixel Rate

4.320 GPixel/s

49.41 GTexel/s

Texture Rate

17.28 GTexel/s

-

FP16 (half)

-

1.581 TFLOPS

FP32 (float)

414.7 GFLOPS

197.6 GFLOPS

FP64 (double)

34.56 GFLOPS

Graphics Processor

GF110

GPU Name

GF116

GF110-380-A1

GPU Variant

GF116-150-A1

Fermi 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

3 billion

Transistors

1.17 billion

520 mm²

Die Size

238 mm²

Board Design

244W

TDP

75W

550 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.0

CUDA

2.1

5.1

Shader Model

5.1

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