AMD Radeon HD 7990 vs AMD Radeon RX 580 2048SP

VS

AMD Radeon HD 7990 AMD Radeon RX 580 2048SP

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 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 7990 's Advantages

Larger VRAM bandwidth (288.0GB/s vs 224.0GB/s)

AMD Radeon RX 580 2048SP 's Advantages

Released 5 years and 6 months late

Boost Clock has increased by 28% (1284MHz vs 1000MHz)

More VRAM (4GB vs 3GB)

Lower TDP (150W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990

4.096 TFLOPS

Radeon RX 580 2048SP +28%

5.259 TFLOPS

Radeon HD 7990

VS

Radeon RX 580 2048SP

Graphics Card

Apr 2013

Release Date

Oct 2018

Southern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

1168 MHz

1000 MHz

Boost Clock

1284 MHz

1500 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

224.0GB/s

Render Config

-

SM Count

-

32

Compute Units

32

2048

Shading Units

2048

128

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

2 MB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

41.09 GPixel/s

128.0 GTexel/s

Texture Rate

164.4 GTexel/s

-

FP16 (half)

5.259 TFLOPS

4.096 TFLOPS

FP32 (float)

5.259 TFLOPS

1024 GFLOPS

FP64 (double)

328.7 GFLOPS

Graphics Processor

Malta

GPU Name

Polaris 20

Malta XT (215-0849026)

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

365 mm²

Die Size

232 mm²

Board Design

375W

TDP

150W

750 W

Suggested PSU

450 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.4

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