AMD Radeon RX 580X vs AMD Radeon HD 7950 Boost

VS

AMD Radeon RX 580X

AMD Radeon HD 7950 Boost

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580X and 3GB VRAM Radeon HD 7950 Boost to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X 's Advantages

Released 5 years and 10 months late

Boost Clock has increased by 45% (1340MHz vs 925MHz)

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (256.0GB/s vs 240.0GB/s)

512 additional rendering cores

Lower TDP (185W vs 200W)

Score

Benchmark

FP32 (float)

Radeon RX 580X +86%

6.175 TFLOPS

Radeon HD 7950 Boost

3.315 TFLOPS

Radeon RX 580X

VS

Radeon HD 7950 Boost

Graphics Card

Apr 2018

Release Date

Jun 2012

Polaris

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1257 MHz

Base Clock

850 MHz

1340 MHz

Boost Clock

925 MHz

2000 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

256.0GB/s

Bandwidth

240.0GB/s

Render Config

36

Compute Units

28

-

2304

Shading Units

1792

144

TMUs

112

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

768 KB

-

Theoretical Performance

42.88 GPixel/s

Pixel Rate

29.60 GPixel/s

193.0 GTexel/s

Texture Rate

103.6 GTexel/s

6.175 TFLOPS

FP16 (half)

-

6.175 TFLOPS

FP32 (float)

3.315 TFLOPS

385.9 GFLOPS

FP64 (double)

828.8 GFLOPS

Board Design

185W

TDP

200W

450 W

Suggested PSU

550 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Polaris 20

GPU Name

Tahiti

Polaris 20 XTX (215-0910038)

GPU Variant

Tahiti PRO2 (215-0821282)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

4.313 billion

232 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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