AMD Radeon 550X 640SP vs AMD Radeon HD 6750

VS

AMD Radeon 550X 640SP AMD Radeon HD 6750

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP 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 550X 640SP 's Advantages

Released 7 years and 3 months late

Boost Clock1071MHz

More VRAM (4GB vs 1GB)

Lower TDP (50W vs 86W)

AMD Radeon HD 6750 's Advantages

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

80 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP +36%

1.371 TFLOPS

Radeon HD 6750

1.008 TFLOPS

Radeon 550X 640SP

VS

Radeon HD 6750

Graphics Card

Apr 2018

Release Date

Jan 2011

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

1150 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

73.60GB/s

Render Config

-

SM Count

-

10

Compute Units

9

640

Shading Units

720

40

TMUs

36

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

17.14 GPixel/s

Pixel Rate

11.20 GPixel/s

42.84 GTexel/s

Texture Rate

25.20 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

1008 GFLOPS

85.68 GFLOPS

FP64 (double)

-

Graphics Processor

Lexa

GPU Name

Juniper

Lexa PRO (215-0904018)

GPU Variant

Juniper LE (215-0754009)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

1.04 billion

103 mm²

Die Size

166 mm²

Board Design

50W

TDP

86W

250 W

Suggested PSU

250 W

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

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.4

Shader Model

5.0

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