ATI FirePro V7900 vs NVIDIA GeForce GT 640 OEM Rebrand

VS

ATI FirePro V7900

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 2GB VRAM FirePro V7900 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

ATI FirePro V7900 's Advantages

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (160.0GB/s vs 38.40GB/s)

1136 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 11 months late

Lower TDP (75W vs 150W)

Score

Benchmark

FP32 (float)

FirePro V7900 +347%

1.856 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

FirePro V7900

VS

GeForce GT 640 OEM Rebrand

Graphics Card

May 2011

Release Date

Apr 2012

FirePro

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

192bit

160.0GB/s

Bandwidth

38.40GB/s

Render Config

20

Compute Units

-

SM Count

3

1280

Shading Units

144

80

TMUs

24

32

ROPs

24

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

4.320 GPixel/s

58.00 GTexel/s

Texture Rate

17.28 GTexel/s

-

1.856 TFLOPS

FP32 (float)

414.7 GFLOPS

464.0 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

150W

TDP

75W

450 W

Suggested PSU

250 W

4x DisplayPort 1.2

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

None

Graphics Processor

Cayman

GPU Name

GF116

Cayman PRO GL

GPU Variant

GF116-150-A1

TeraScale 3

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

1.17 billion

389 mm²

Die Size

238 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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