NVIDIA GeForce RTX 2080 vs AMD Radeon HD 7990

VS

NVIDIA GeForce RTX 2080

AMD Radeon HD 7990

We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 2080 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 2080 's Advantages

Released 5 years and 5 months late

Boost Clock has increased by 71% (1710MHz vs 1000MHz)

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (448.0GB/s vs 288.0GB/s)

896 additional rendering cores

Lower TDP (215W vs 375W)

Score

Benchmark

FP32 (float)

GeForce RTX 2080 +145%

10.07 TFLOPS

Radeon HD 7990

4.096 TFLOPS

GeForce RTX 2080

VS

Radeon HD 7990

Graphics Card

Sep 2018

Release Date

Apr 2013

GeForce 20

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1515 MHz

Base Clock

950 MHz

1710 MHz

Boost Clock

1000 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

448.0GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

46

SM Count

-

2944

Shading Units

2048

184

TMUs

128

64

ROPs

32

368

Tensor Cores

-

46

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

-

Theoretical Performance

109.4 GPixel/s

Pixel Rate

32.00 GPixel/s

314.6 GTexel/s

Texture Rate

128.0 GTexel/s

20.14 TFLOPS

FP16 (half)

-

10.07 TFLOPS

FP32 (float)

4.096 TFLOPS

314.6 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

215W

TDP

375W

550 W

Suggested PSU

750 W

1x HDMI 2.0 3x DisplayPort 1.4a 1x USB Type-C

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

TU104

GPU Name

Malta

TU104-400A-A1

GPU Variant

Malta XT (215-0849026)

Turing

Architecture

GCN 1.0

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

13.6 billion

Transistors

4.313 billion

545 mm²

Die Size

365 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

7.5

CUDA

-

6.6

Shader Model

5.1

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