NVIDIA GeForce GTX 645 OEM vs ATI Radeon HD 3470

VS

NVIDIA GeForce GTX 645 OEM

ATI Radeon HD 3470

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 256MB VRAM Radeon HD 3470 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 5 years and 3 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 15.20GB/s)

536 additional rendering cores

ATI Radeon HD 3470 's Advantages

Lower TDP (30W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +1382%

0.949 TFLOPS

Radeon HD 3470

0.064 TFLOPS

GeForce GTX 645 OEM

VS

Radeon HD 3470

Graphics Card

Apr 2013

Release Date

Jan 2008

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

950 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

15.20GB/s

Render Config

-

Compute Units

2

-

576

Shading Units

40

48

TMUs

4

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

3.200 GPixel/s

39.55 GTexel/s

Texture Rate

3.200 GTexel/s

-

949.2 GFLOPS

FP32 (float)

64.00 GFLOPS

39.55 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

30W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

GK106

GPU Name

RV620

GK106-200-A1

GPU Variant

RV620 PRO (215-0670006)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.54 billion

Transistors

0.181 billion

221 mm²

Die Size

67 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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