NVIDIA GeForce GTX 745 OEM vs ATI Radeon HD 3870 X2

VS

NVIDIA GeForce GTX 745 OEM

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 745 OEM and 512MB VRAM Radeon HD 3870 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 6 years and 1 months late

More VRAM (4GB vs 512GB)

64 additional rendering cores

Lower TDP (55W vs 165W)

ATI Radeon HD 3870 X2 's Advantages

Larger VRAM bandwidth (57.66GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 745 OEM +50%

0.793 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

GeForce GTX 745 OEM

VS

Radeon HD 3870 X2

Graphics Card

Feb 2014

Release Date

Jan 2008

GeForce 700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

901 MHz

Memory

4GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

57.66GB/s

Render Config

-

Compute Units

4

-

384

Shading Units

320

24

TMUs

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

256 KB

-

Theoretical Performance

16.53 GPixel/s

Pixel Rate

13.20 GPixel/s

24.79 GTexel/s

Texture Rate

13.20 GTexel/s

-

793.3 GFLOPS

FP32 (float)

528.0 GFLOPS

24.79 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

55W

TDP

165W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 2.0 1x VGA

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GM107

GPU Name

R680

GM107-220-A2

GPU Variant

R680 XT (215-0708017)

Maxwell

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.87 billion

Transistors

0.666 billion

148 mm²

Die Size

192 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

4.1

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