AMD Radeon RX 5500 XT vs AMD Radeon HD 7990

VS

AMD Radeon RX 5500 XT

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 5500 XT and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 5500 XT 's Advantages

Released 6 years and 8 months late

Boost Clock has increased by 84% (1845MHz vs 1000MHz)

More VRAM (4GB vs 3GB)

Lower TDP (130W vs 375W)

AMD Radeon HD 7990 's Advantages

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

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 5500 XT +26%

5.196 TFLOPS

Radeon HD 7990

4.096 TFLOPS

Radeon RX 5500 XT

VS

Radeon HD 7990

Graphics Card

Dec 2019

Release Date

Apr 2013

Navi

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1607 MHz

Base Clock

950 MHz

1845 MHz

Boost Clock

1000 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

384bit

224.0GB/s

Bandwidth

288.0GB/s

Render Config

22

Compute Units

32

-

1408

Shading Units

2048

88

TMUs

128

32

ROPs

32

-

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

768 KB

-

Theoretical Performance

59.04 GPixel/s

Pixel Rate

32.00 GPixel/s

162.4 GTexel/s

Texture Rate

128.0 GTexel/s

10.39 TFLOPS

FP16 (half)

-

5.196 TFLOPS

FP32 (float)

4.096 TFLOPS

324.7 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

130W

TDP

375W

300 W

Suggested PSU

750 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Navi 14

GPU Name

Malta

Navi 14 XTX (215-0932396)

GPU Variant

Malta XT (215-0849026)

RDNA 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

6.4 billion

Transistors

4.313 billion

158 mm²

Die Size

365 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.5

Shader Model

5.1

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