AMD Radeon HD 7990 vs NVIDIA GeForce RTX 3080 Ti

VS

AMD Radeon HD 7990

NVIDIA GeForce RTX 3080 Ti

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 12GB VRAM GeForce RTX 3080 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 's Advantages

Released 8 years and 1 months late

Boost Clock has increased by 66% (1665MHz vs 1000MHz)

More VRAM (12GB vs 3GB)

Larger VRAM bandwidth (912.4GB/s vs 288.0GB/s)

8192 additional rendering cores

Lower TDP (350W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990

4.096 TFLOPS

GeForce RTX 3080 Ti +732%

34.1 TFLOPS

Radeon HD 7990

VS

GeForce RTX 3080 Ti

Graphics Card

Apr 2013

Release Date

May 2021

Southern Islands

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

950 MHz

Base Clock

1365 MHz

1000 MHz

Boost Clock

1665 MHz

1500 MHz

Memory Clock

1188 MHz

Memory

3GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6X

384bit

Memory Bus

384bit

288.0GB/s

Bandwidth

912.4GB/s

Render Config

32

Compute Units

-

SM Count

80

2048

Shading Units

10240

128

TMUs

320

32

ROPs

112

-

Tensor Cores

320

-

RT Cores

80

16 KB (per CU)

L1 Cache

128 KB (per SM)

768 KB

L2 Cache

6 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

186.5 GPixel/s

128.0 GTexel/s

Texture Rate

532.8 GTexel/s

-

FP16 (half)

34.10 TFLOPS

4.096 TFLOPS

FP32 (float)

34.10 TFLOPS

1024 GFLOPS

FP64 (double)

532.8 GFLOPS

Board Design

375W

TDP

350W

750 W

Suggested PSU

750 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 12-pin

Graphics Processor

Malta

GPU Name

GA102

Malta XT (215-0849026)

GPU Variant

GA102-225-A1

GCN 1.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

4.313 billion

Transistors

28.3 billion

365 mm²

Die Size

628 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

5.1

Shader Model

6.6

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