NVIDIA GeForce GTX 745 OEM vs AMD Radeon R9 270 1024SP

VS

NVIDIA GeForce GTX 745 OEM

AMD Radeon R9 270 1024SP

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 745 OEM and 2GB VRAM Radeon R9 270 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 745 OEM 's Advantages

More VRAM (4GB vs 2GB)

Lower TDP (55W vs 150W)

AMD Radeon R9 270 1024SP 's Advantages

Released 1 years and 1 months late

Boost Clock925MHz

Larger VRAM bandwidth (153.6GB/s vs 28.80GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon R9 270 1024SP +138%

1.894 TFLOPS

GeForce GTX 745 OEM

VS

Radeon R9 270 1024SP

Graphics Card

Feb 2014

Release Date

Mar 2015

GeForce 700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

900 MHz

Memory Clock

1200 MHz

Memory

4GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

16

-

384

Shading Units

1024

24

TMUs

64

16

ROPs

32

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

16.53 GPixel/s

Pixel Rate

29.60 GPixel/s

24.79 GTexel/s

Texture Rate

59.20 GTexel/s

-

793.3 GFLOPS

FP32 (float)

1.894 TFLOPS

24.79 GFLOPS

FP64 (double)

118.4 GFLOPS

Board Design

55W

TDP

150W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 2.0 1x VGA

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

GM107

GPU Name

Pitcairn

GM107-220-A2

GPU Variant

Pitcairn PRO (215-0828062)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

2.8 billion

148 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

5.1

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