AMD Radeon HD 8770 OEM vs NVIDIA GeForce GT 620

VS

AMD Radeon HD 8770 OEM

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8770 OEM and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770 OEM 's Advantages

Released 1 years and 4 months late

Larger VRAM bandwidth (96.00GB/s vs 14.40GB/s)

800 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Lower TDP (49W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 8770 OEM +599%

1.882 TFLOPS

GeForce GT 620

0.269 TFLOPS

Radeon HD 8770 OEM

VS

GeForce GT 620

Graphics Card

Sep 2013

Release Date

May 2012

Sea Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

14.40GB/s

Render Config

14

Compute Units

-

SM Count

2

896

Shading Units

96

56

TMUs

16

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

16.80 GPixel/s

Pixel Rate

2.800 GPixel/s

58.80 GTexel/s

Texture Rate

11.20 GTexel/s

-

1.882 TFLOPS

FP32 (float)

268.8 GFLOPS

117.6 GFLOPS

FP64 (double)

22.40 GFLOPS

Board Design

85W

TDP

49W

250 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Bonaire

GPU Name

GF108

Bonaire XT (215-0839039)

GPU Variant

GF108-100-KB-A1

GCN 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

0.585 billion

160 mm²

Die Size

116 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.3

Shader Model

5.1

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