NVIDIA GeForce GTX 745 OEM vs AMD Radeon R9 255 OEM

VS

NVIDIA GeForce GTX 745 OEM

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 745 OEM and 2GB VRAM Radeon R9 255 OEM 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 65W)

AMD Radeon R9 255 OEM 's Advantages

Boost Clock930MHz

Larger VRAM bandwidth (73.60GB/s vs 28.80GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon R9 255 OEM +20%

0.952 TFLOPS

GeForce GTX 745 OEM

VS

Radeon R9 255 OEM

Graphics Card

Feb 2014

Release Date

Dec 2013

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

930 MHz

900 MHz

Memory Clock

1150 MHz

Memory

4GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

73.60GB/s

Render Config

-

Compute Units

8

-

384

Shading Units

512

24

TMUs

32

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

16.53 GPixel/s

Pixel Rate

14.88 GPixel/s

24.79 GTexel/s

Texture Rate

29.76 GTexel/s

-

793.3 GFLOPS

FP32 (float)

952.3 GFLOPS

24.79 GFLOPS

FP64 (double)

59.52 GFLOPS

Board Design

55W

TDP

65W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 2.0 1x VGA

Outputs

No outputs

None

Power Connectors

1x 6-pin

Graphics Processor

GM107

GPU Name

Cape Verde

GM107-220-A2

GPU Variant

Cape Verde PRX

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.5 billion

148 mm²

Die Size

123 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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