AMD Radeon HD 7990 vs AMD Radeon RX 550 640SP

VS

AMD Radeon HD 7990

AMD Radeon RX 550 640SP

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 2GB VRAM Radeon RX 550 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 96.00GB/s)

1408 additional rendering cores

AMD Radeon RX 550 640SP 's Advantages

Released 4 years and 6 months late

Boost Clock has increased by 7% (1071MHz vs 1000MHz)

Lower TDP (60W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +198%

4.096 TFLOPS

Radeon RX 550 640SP

1.371 TFLOPS

Radeon HD 7990

VS

Radeon RX 550 640SP

Graphics Card

Apr 2013

Release Date

Oct 2017

Southern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

950 MHz

Base Clock

1019 MHz

1000 MHz

Boost Clock

1071 MHz

1500 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

96.00GB/s

Render Config

32

Compute Units

10

-

2048

Shading Units

640

128

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

17.14 GPixel/s

128.0 GTexel/s

Texture Rate

42.84 GTexel/s

-

FP16 (half)

1371 GFLOPS

4.096 TFLOPS

FP32 (float)

1371 GFLOPS

1024 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

375W

TDP

60W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

None

Graphics Processor

Malta

GPU Name

Baffin

Malta XT (215-0849026)

GPU Variant

Baffin LE

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

3 billion

365 mm²

Die Size

123 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

Related GPU Comparisons

1

AMD Radeon HD 7990 vs NVIDIA GeForce GT 520

2

AMD Radeon HD 7990 vs NVIDIA GeForce 9300 GE

3

AMD Radeon HD 7990 vs ATI Radeon HD 2600 PRO

4

AMD Radeon HD 7990 vs NVIDIA GeForce RTX 4060 Ti 16 GB

5

AMD Radeon HD 7990 vs AMD Radeon HD 6790

6

AMD Radeon HD 7990 vs NVIDIA GeForce GTS 240 OEM

7

AMD Radeon HD 7990 vs NVIDIA GeForce 8600 GTS

8

AMD Radeon HD 7990 vs NVIDIA Quadro FX 550

9

AMD Radeon HD 7990 vs NVIDIA GeForce 8400 GS PCI Rev. 2

10

AMD Radeon HD 7990 vs NVIDIA GeForce GTX 590

Related News

1

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

2

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

3

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

4

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

5

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

6

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

7

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

8

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

9

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

10

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game