AMD Radeon HD 7950 vs ATI Radeon HD 5490

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 1024MB VRAM Radeon HD 5490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

More VRAM (3GB vs 1GB)

Larger VRAM bandwidth (240.0GB/s vs 8.000GB/s)

1712 additional rendering cores

ATI Radeon HD 5490 's Advantages

Released 9 months late

Lower TDP (19W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 +2656%

2.867 TFLOPS

Radeon HD 5490

0.104 TFLOPS

Radeon HD 7950

VS

Radeon HD 5490

Graphics Card

Jan 2012

Release Date

Oct 2012

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

-

28

Compute Units

2

1792

Shading Units

80

112

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

128 KB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.600 GPixel/s

89.60 GTexel/s

Texture Rate

5.200 GTexel/s

-

FP16 (half)

-

2.867 TFLOPS

FP32 (float)

104.0 GFLOPS

716.8 GFLOPS

FP64 (double)

-

Graphics Processor

Tahiti

GPU Name

Cedar

Tahiti PRO (215-0821056)

GPU Variant

Cedar XTX

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.292 billion

352 mm²

Die Size

59 mm²

Board Design

200W

TDP

19W

550 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

5.0

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