NVIDIA GeForce GTX 745 OEM vs AMD Radeon HD 7790

VS

NVIDIA GeForce GTX 745 OEM

AMD Radeon HD 7790

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 745 OEM and 1024MB VRAM Radeon HD 7790 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 11 months late

More VRAM (4GB vs 1024GB)

Lower TDP (55W vs 85W)

AMD Radeon HD 7790 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 28.80GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon HD 7790 +125%

1.792 TFLOPS

GeForce GTX 745 OEM

VS

Radeon HD 7790

Graphics Card

Feb 2014

Release Date

Mar 2013

GeForce 700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

96.00GB/s

Render Config

-

Compute Units

14

-

384

Shading Units

896

24

TMUs

56

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

16.00 GPixel/s

24.79 GTexel/s

Texture Rate

56.00 GTexel/s

-

793.3 GFLOPS

FP32 (float)

1.792 TFLOPS

24.79 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

55W

TDP

85W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 2.0 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

GM107

GPU Name

Bonaire

GM107-220-A2

GPU Variant

Bonaire XT (215-0839039)

Maxwell

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

2.08 billion

148 mm²

Die Size

160 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

6.3

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