NVIDIA GeForce GTX 645 OEM vs ATI Radeon HD 4700

VS

NVIDIA GeForce GTX 645 OEM

ATI Radeon HD 4700

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 512MB VRAM Radeon HD 4700 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 3 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 12.80GB/s)

256 additional rendering cores

ATI Radeon HD 4700 's Advantages

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +147%

0.949 TFLOPS

Radeon HD 4700

0.384 TFLOPS

GeForce GTX 645 OEM

VS

Radeon HD 4700

Graphics Card

Apr 2013

Release Date

Feb 2010

GeForce 600

Generation

Radeon R700

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

DDR2

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

12.80GB/s

Render Config

-

Compute Units

4

-

576

Shading Units

320

48

TMUs

32

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

4.800 GPixel/s

39.55 GTexel/s

Texture Rate

19.20 GTexel/s

-

949.2 GFLOPS

FP32 (float)

384.0 GFLOPS

39.55 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

-

Graphics Processor

GK106

GPU Name

RV730

GK106-200-A1

GPU Variant

RV730 CE

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.54 billion

Transistors

0.514 billion

221 mm²

Die Size

146 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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