AMD Radeon HD 6950 vs AMD Radeon 550X

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 2GB VRAM Radeon 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950 's Advantages

Larger VRAM bandwidth (160.0GB/s vs 112.0GB/s)

896 additional rendering cores

AMD Radeon 550X 's Advantages

Released 8 years and 3 months late

Boost Clock1218MHz

Lower TDP (50W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 6950 +80%

2.253 TFLOPS

Radeon 550X

1.247 TFLOPS

Radeon HD 6950

VS

Radeon 550X

Graphics Card

Dec 2010

Release Date

Mar 2019

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1082 MHz

-

Boost Clock

1218 MHz

1250 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

112.0GB/s

Render Config

-

SM Count

-

22

Compute Units

8

1408

Shading Units

512

88

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

19.49 GPixel/s

70.40 GTexel/s

Texture Rate

38.98 GTexel/s

-

FP16 (half)

1247 GFLOPS

2.253 TFLOPS

FP32 (float)

1247 GFLOPS

563.2 GFLOPS

FP64 (double)

77.95 GFLOPS

Graphics Processor

Cayman

GPU Name

Lexa

Cayman PRO (215-0807019)

GPU Variant

Lexa PRO (215-0904018)

TeraScale 3

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

2.64 billion

Transistors

2.2 billion

389 mm²

Die Size

103 mm²

Board Design

200W

TDP

50W

550 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

None

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

-

CUDA

-

5.0

Shader Model

6.4

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