AMD Radeon HD 6750 vs AMD Radeon R9 280X

VS

AMD Radeon HD 6750

AMD Radeon R9 280X

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6750 and 3GB VRAM Radeon R9 280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6750 's Advantages

Lower TDP (86W vs 250W)

AMD Radeon R9 280X 's Advantages

Released 2 years and 9 months late

Boost Clock1000MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 73.60GB/s)

1328 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6750

1.008 TFLOPS

Radeon R9 280X +306%

4.096 TFLOPS

Radeon HD 6750

VS

Radeon R9 280X

Graphics Card

Jan 2011

Release Date

Oct 2013

Northern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

1000 MHz

1150 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

73.60GB/s

Bandwidth

288.0GB/s

Render Config

9

Compute Units

32

-

720

Shading Units

2048

36

TMUs

128

16

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

32.00 GPixel/s

25.20 GTexel/s

Texture Rate

128.0 GTexel/s

-

1008 GFLOPS

FP32 (float)

4.096 TFLOPS

-

FP64 (double)

1024 GFLOPS

Board Design

86W

TDP

250W

250 W

Suggested PSU

600 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Juniper

GPU Name

Tahiti

Juniper LE (215-0754009)

GPU Variant

Tahiti XTL (215-0821065)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

4.313 billion

166 mm²

Die Size

352 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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