NVIDIA GeForce GT 640 OEM Rebrand vs ATI FirePro V7760

VS

NVIDIA GeForce GT 640 OEM Rebrand

ATI FirePro V7760

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 1024MB VRAM FirePro V7760 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

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (38.40GB/s vs 27.20GB/s)

Lower TDP (75W vs 76W)

ATI FirePro V7760 's Advantages

656 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

FirePro V7760 +189%

1.2 TFLOPS

GeForce GT 640 OEM Rebrand

VS

FirePro V7760

Graphics Card

Apr 2012

Release Date

Jan 2012

GeForce 600

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

850 MHz

Memory

1536MB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

192bit

Memory Bus

128bit

38.40GB/s

Bandwidth

27.20GB/s

Render Config

-

Compute Units

10

3

SM Count

-

144

Shading Units

800

24

TMUs

40

24

ROPs

8

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

128 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

6.000 GPixel/s

17.28 GTexel/s

Texture Rate

30.00 GTexel/s

-

414.7 GFLOPS

FP32 (float)

1200 GFLOPS

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

76W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI

None

Power Connectors

1x 6-pin

Graphics Processor

GF116

GPU Name

RV770

GF116-150-A1

GPU Variant

RV770 XT (215-0669049)

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

0.956 billion

238 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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