AMD Radeon HD 6750 vs AMD Radeon 550X 640SP

VS

AMD Radeon HD 6750

AMD Radeon 550X 640SP

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6750 and 4GB VRAM Radeon 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6750 's Advantages

Larger VRAM bandwidth (73.60GB/s vs 48.00GB/s)

80 additional rendering cores

AMD Radeon 550X 640SP 's Advantages

Released 7 years and 3 months late

Boost Clock1071MHz

More VRAM (4GB vs 1024GB)

Lower TDP (50W vs 86W)

Score

Benchmark

FP32 (float)

Radeon HD 6750

1.008 TFLOPS

Radeon 550X 640SP +36%

1.371 TFLOPS

Radeon HD 6750

VS

Radeon 550X 640SP

Graphics Card

Jan 2011

Release Date

Apr 2018

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1019 MHz

-

Boost Clock

1071 MHz

1150 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

73.60GB/s

Bandwidth

48.00GB/s

Render Config

9

Compute Units

10

-

720

Shading Units

640

36

TMUs

40

16

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

17.14 GPixel/s

25.20 GTexel/s

Texture Rate

42.84 GTexel/s

-

FP16 (half)

1371 GFLOPS

1008 GFLOPS

FP32 (float)

1371 GFLOPS

-

FP64 (double)

85.68 GFLOPS

Board Design

86W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Processor

Juniper

GPU Name

Lexa

Juniper LE (215-0754009)

GPU Variant

Lexa PRO (215-0904018)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.04 billion

Transistors

2.2 billion

166 mm²

Die Size

103 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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