AMD Radeon HD 7770 GHz Edition vs NVIDIA GeForce GT 440

VS

AMD Radeon HD 7770 GHz Edition

NVIDIA GeForce GT 440

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 1024MB VRAM GeForce GT 440 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770 GHz Edition 's Advantages

Released 1 years late

Larger VRAM bandwidth (72.00GB/s vs 28.80GB/s)

544 additional rendering cores

NVIDIA GeForce GT 440 's Advantages

Lower TDP (65W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +311%

1.28 TFLOPS

GeForce GT 440

0.311 TFLOPS

Radeon HD 7770 GHz Edition

VS

GeForce GT 440

Graphics Card

Feb 2012

Release Date

Feb 2011

Southern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

28.80GB/s

Render Config

10

Compute Units

-

SM Count

2

640

Shading Units

96

40

TMUs

16

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

3.240 GPixel/s

40.00 GTexel/s

Texture Rate

12.96 GTexel/s

-

1280 GFLOPS

FP32 (float)

311.0 GFLOPS

80.00 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

80W

TDP

65W

250 W

Suggested PSU

250 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

Cape Verde

GPU Name

GF108

Cape Verde XT

GPU Variant

GF108-400-A1

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.585 billion

123 mm²

Die Size

116 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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