NVIDIA GeForce GTX 645 OEM vs ATI Radeon HD 5470

VS

NVIDIA GeForce GTX 645 OEM

ATI Radeon HD 5470

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 512MB VRAM Radeon HD 5470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Released 1 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 6.400GB/s)

496 additional rendering cores

ATI Radeon HD 5470 's Advantages

Lower TDP (19W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +812%

0.949 TFLOPS

Radeon HD 5470

0.104 TFLOPS

GeForce GTX 645 OEM

VS

Radeon HD 5470

Graphics Card

Apr 2013

Release Date

Feb 2012

GeForce 600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

6.400GB/s

Render Config

-

Compute Units

2

-

576

Shading Units

80

48

TMUs

8

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

2.600 GPixel/s

39.55 GTexel/s

Texture Rate

5.200 GTexel/s

-

949.2 GFLOPS

FP32 (float)

104.0 GFLOPS

39.55 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

19W

250 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

GK106

GPU Name

Cedar

GK106-200-A1

GPU Variant

Cedar PRO

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.54 billion

Transistors

0.292 billion

221 mm²

Die Size

59 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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