NVIDIA GeForce GTX 745 OEM vs AMD Radeon HD 6870 X2

VS

NVIDIA GeForce GTX 745 OEM

AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 745 OEM and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 745 OEM 's Advantages

Released 2 years and 7 months late

More VRAM (4GB vs 1024GB)

Lower TDP (55W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 28.80GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon HD 6870 X2 +154%

2.016 TFLOPS

GeForce GTX 745 OEM

VS

Radeon HD 6870 X2

Graphics Card

Feb 2014

Release Date

Jul 2011

GeForce 700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

-

384

Shading Units

1120

24

TMUs

56

16

ROPs

32

-

64 KB (per SMM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

16.53 GPixel/s

Pixel Rate

28.80 GPixel/s

24.79 GTexel/s

Texture Rate

50.40 GTexel/s

-

793.3 GFLOPS

FP32 (float)

2.016 TFLOPS

24.79 GFLOPS

FP64 (double)

-

Board Design

55W

TDP

300W

250 W

Suggested PSU

700 W

1x DVI 1x HDMI 2.0 1x VGA

Outputs

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

None

Power Connectors

-

Graphics Processor

GM107

GPU Name

Barts

GM107-220-A2

GPU Variant

Barts XT (215-0798000)

Maxwell

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.87 billion

Transistors

1.7 billion

148 mm²

Die Size

255 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

5.0

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