ATI Radeon HD 4770 vs NVIDIA GeForce GT 620 OEM

VS

ATI Radeon HD 4770

NVIDIA GeForce GT 620 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 512MB VRAM GeForce GT 620 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 14.37GB/s)

592 additional rendering cores

NVIDIA GeForce GT 620 OEM 's Advantages

Released 3 years late

Lower TDP (30W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 4770 +515%

0.96 TFLOPS

GeForce GT 620 OEM

0.156 TFLOPS

Radeon HD 4770

VS

GeForce GT 620 OEM

Graphics Card

Apr 2009

Release Date

Apr 2012

Radeon R700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

898 MHz

Memory

512MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

51.20GB/s

Bandwidth

14.37GB/s

Render Config

8

Compute Units

-

SM Count

1

640

Shading Units

48

32

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

1.620 GPixel/s

24.00 GTexel/s

Texture Rate

6.480 GTexel/s

-

960.0 GFLOPS

FP32 (float)

155.5 GFLOPS

192.0 GFLOPS

FP64 (double)

12.96 GFLOPS

Board Design

80W

TDP

30W

250 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

GF119

RV740 XT (215-0727019)

GPU Variant

-

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.826 billion

Transistors

0.292 billion

137 mm²

Die Size

79 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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