AMD Radeon HD 7950 Monica BIOS 1 vs ATI Radeon HD 4580

VS

AMD Radeon HD 7950 Monica BIOS 1

ATI Radeon HD 4580

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 1 and 512MB VRAM Radeon HD 4580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Monica BIOS 1 's Advantages

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 22.18GB/s)

1416 additional rendering cores

ATI Radeon HD 4580 's Advantages

Lower TDP (65W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Monica BIOS 1 +1387%

2.842 TFLOPS

Radeon HD 4580

0.191 TFLOPS

Radeon HD 7950 Monica BIOS 1

VS

Radeon HD 4580

Graphics Card

Jan 2012

Release Date

Nov 2011

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

693 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

22.18GB/s

Render Config

24

Compute Units

3

-

1536

Shading Units

120

96

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

128 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

3.184 GPixel/s

88.80 GTexel/s

Texture Rate

6.368 GTexel/s

-

2.842 TFLOPS

FP32 (float)

191.0 GFLOPS

710.4 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

65W

450 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

RV635

Tahiti PRO (215-0821056)

GPU Variant

RV635 PRO (215-0682008)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.378 billion

352 mm²

Die Size

135 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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