NVIDIA GeForce GT 640 OEM Rebrand vs ATI FireMV 2260

VS

NVIDIA GeForce GT 640 OEM Rebrand

ATI FireMV 2260

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 256MB VRAM FireMV 2260 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

Released 4 years and 3 months late

More VRAM (1536GB vs 256GB)

Larger VRAM bandwidth (38.40GB/s vs 8.000GB/s)

104 additional rendering cores

ATI FireMV 2260 's Advantages

Lower TDP (15W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand +937%

0.415 TFLOPS

FireMV 2260

0.04 TFLOPS

GeForce GT 640 OEM Rebrand

VS

FireMV 2260

Graphics Card

Apr 2012

Release Date

Jan 2008

GeForce 600

Generation

FireMV Multi-View

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

500 MHz

Memory

1536MB

Memory Size

256MB

DDR3

Memory Type

DDR2

192bit

Memory Bus

64bit

38.40GB/s

Bandwidth

8.000GB/s

Render Config

-

Compute Units

2

3

SM Count

-

144

Shading Units

40

24

TMUs

4

24

ROPs

4

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

2.000 GPixel/s

17.28 GTexel/s

Texture Rate

2.000 GTexel/s

-

414.7 GFLOPS

FP32 (float)

40.00 GFLOPS

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

15W

250 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

4x mini-DisplayPort

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

RV620

GF116-150-A1

GPU Variant

-

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

0.181 billion

238 mm²

Die Size

67 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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