NVIDIA GeForce GTX 745 OEM vs AMD Radeon HD 6870 1600SP Edition

VS

NVIDIA GeForce GTX 745 OEM

AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 745 OEM and 1024MB VRAM Radeon HD 6870 1600SP Edition 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 1 years and 1 months late

More VRAM (4GB vs 1024GB)

Lower TDP (55W vs 175W)

AMD Radeon HD 6870 1600SP Edition 's Advantages

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

1216 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon HD 6870 1600SP Edition +243%

2.72 TFLOPS

GeForce GTX 745 OEM

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Feb 2014

Release Date

Jan 2013

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

20

-

384

Shading Units

1600

24

TMUs

80

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

27.20 GPixel/s

24.79 GTexel/s

Texture Rate

68.00 GTexel/s

-

793.3 GFLOPS

FP32 (float)

2.720 TFLOPS

24.79 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

55W

TDP

175W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 2.0 1x VGA

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

GM107

GPU Name

Cypress

GM107-220-A2

GPU Variant

Cypress XT (215-0735033)

Maxwell

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.87 billion

Transistors

2.154 billion

148 mm²

Die Size

334 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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