NVIDIA GeForce GT 640 OEM Rebrand vs AMD FirePro W4000

VS

NVIDIA GeForce GT 640 OEM Rebrand

AMD FirePro W4000

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 2GB VRAM FirePro W4000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD FirePro W4000 's Advantages

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (102.4GB/s vs 38.40GB/s)

624 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

FirePro W4000 +205%

1.267 TFLOPS

GeForce GT 640 OEM Rebrand

VS

FirePro W4000

Graphics Card

Apr 2012

Release Date

Aug 2012

GeForce 600

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

192bit

Memory Bus

256bit

38.40GB/s

Bandwidth

102.4GB/s

Render Config

-

Compute Units

12

3

SM Count

-

144

Shading Units

768

24

TMUs

48

24

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

26.40 GPixel/s

17.28 GTexel/s

Texture Rate

39.60 GTexel/s

-

414.7 GFLOPS

FP32 (float)

1267 GFLOPS

34.56 GFLOPS

FP64 (double)

79.20 GFLOPS

Board Design

75W

TDP

75W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 2x DisplayPort 1.2

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

Pitcairn

GF116-150-A1

GPU Variant

Pitcairn LE GL

Fermi 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.17 billion

Transistors

2.8 billion

238 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

5.1

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