AMD Radeon R9 390X vs AMD Radeon HD 6750

VS

AMD Radeon R9 390X

AMD Radeon HD 6750

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 1024MB VRAM Radeon HD 6750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

Released 4 years and 5 months late

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 73.60GB/s)

2096 additional rendering cores

AMD Radeon HD 6750 's Advantages

Lower TDP (86W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +486%

5.914 TFLOPS

Radeon HD 6750

1.008 TFLOPS

Radeon R9 390X

VS

Radeon HD 6750

Graphics Card

Jun 2015

Release Date

Jan 2011

Pirate Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

1150 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

73.60GB/s

Render Config

44

Compute Units

9

-

2816

Shading Units

720

176

TMUs

36

64

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

11.20 GPixel/s

184.8 GTexel/s

Texture Rate

25.20 GTexel/s

-

5.914 TFLOPS

FP32 (float)

1008 GFLOPS

739.2 GFLOPS

FP64 (double)

-

Board Design

275W

TDP

86W

600 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Grenada

GPU Name

Juniper

Grenada XT (215-0880004)

GPU Variant

Juniper LE (215-0754009)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

6.2 billion

Transistors

1.04 billion

438 mm²

Die Size

166 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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