AMD Radeon HD 6390 vs NVIDIA GeForce GTX 745 OEM

VS

AMD Radeon HD 6390

NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 4GB VRAM GeForce GTX 745 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 55W)

NVIDIA GeForce GTX 745 OEM 's Advantages

Released 2 years and 7 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 16.00GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

GeForce GTX 745 OEM +125%

0.793 TFLOPS

Radeon HD 6390

VS

GeForce GTX 745 OEM

Graphics Card

Jul 2011

Release Date

Feb 2014

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

500 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

4GB

DDR2

Memory Type

DDR3

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

-

320

Shading Units

384

16

TMUs

24

8

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

16.53 GPixel/s

8.800 GTexel/s

Texture Rate

24.79 GTexel/s

-

352.0 GFLOPS

FP32 (float)

793.3 GFLOPS

-

FP64 (double)

24.79 GFLOPS

Board Design

39W

TDP

55W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 2.0 1x VGA

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

GM107

Redwood LE

GPU Variant

GM107-220-A2

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.627 billion

Transistors

1.87 billion

104 mm²

Die Size

148 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

Shader Model

5.1

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