AMD Radeon HD 6770 vs NVIDIA GeForce GTX 745 OEM

VS

AMD Radeon HD 6770

NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 4GB VRAM GeForce GTX 745 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages

Larger VRAM bandwidth (76.80GB/s vs 28.80GB/s)

416 additional rendering cores

NVIDIA GeForce GTX 745 OEM 's Advantages

Released 3 years and 1 months late

More VRAM (4GB vs 1024GB)

Lower TDP (55W vs 108W)

Score

Benchmark

FP32 (float)

Radeon HD 6770 +71%

1.36 TFLOPS

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon HD 6770

VS

GeForce GTX 745 OEM

Graphics Card

Jan 2011

Release Date

Feb 2014

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

76.80GB/s

Bandwidth

28.80GB/s

Render Config

10

Compute Units

-

800

Shading Units

384

40

TMUs

24

16

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

16.53 GPixel/s

34.00 GTexel/s

Texture Rate

24.79 GTexel/s

-

1360 GFLOPS

FP32 (float)

793.3 GFLOPS

-

FP64 (double)

24.79 GFLOPS

Board Design

108W

TDP

55W

300 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

1x DVI 1x HDMI 2.0 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Juniper

GPU Name

GM107

Juniper XT (215-0754013)

GPU Variant

GM107-220-A2

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

1.87 billion

166 mm²

Die Size

148 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

Shader Model

5.1

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