AMD Radeon HD 7950 vs AMD Radeon RX 580 2048SP

VS

AMD Radeon HD 7950

AMD Radeon RX 580 2048SP

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 4GB VRAM Radeon RX 580 2048SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

Larger VRAM bandwidth (240.0GB/s vs 224.0GB/s)

AMD Radeon RX 580 2048SP 's Advantages

Released 6 years and 9 months late

Boost Clock1284MHz

More VRAM (4GB vs 3GB)

256 additional rendering cores

Lower TDP (150W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950

2.867 TFLOPS

Radeon RX 580 2048SP +83%

5.259 TFLOPS

3DMark Time Spy

Radeon HD 7950

1917

Radeon RX 580 2048SP +96%

3759

Radeon HD 7950

VS

Radeon RX 580 2048SP

Graphics Card

Jan 2012

Release Date

Oct 2018

Southern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1168 MHz

-

Boost Clock

1284 MHz

1250 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

224.0GB/s

Render Config

28

Compute Units

32

-

1792

Shading Units

2048

112

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

41.09 GPixel/s

89.60 GTexel/s

Texture Rate

164.4 GTexel/s

-

FP16 (half)

5.259 TFLOPS

2.867 TFLOPS

FP32 (float)

5.259 TFLOPS

716.8 GFLOPS

FP64 (double)

328.7 GFLOPS

Board Design

200W

TDP

150W

550 W

Suggested PSU

450 W

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

Outputs

1x DVI 1x HDMI 2.0b 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Tahiti

GPU Name

Polaris 20

Tahiti PRO (215-0821056)

GPU Variant

Polaris 20 XL (215-0910052)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

5.7 billion

352 mm²

Die Size

232 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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