NVIDIA GeForce RTX 3090 vs AMD Radeon HD 7950

VS

NVIDIA GeForce RTX 3090

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 's Advantages

Released 8 years and 8 months late

Boost Clock1695MHz

More VRAM (24GB vs 3GB)

Larger VRAM bandwidth (936.2GB/s vs 240.0GB/s)

8704 additional rendering cores

AMD Radeon HD 7950 's Advantages

Lower TDP (200W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3090 +1141%

35.58 TFLOPS

Radeon HD 7950

2.867 TFLOPS

3DMark Time Spy

GeForce RTX 3090 +940%

19948

Radeon HD 7950

1917

GeForce RTX 3090

VS

Radeon HD 7950

Graphics Card

Sep 2020

Release Date

Jan 2012

GeForce 30

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1395 MHz

Base Clock

-

1695 MHz

Boost Clock

-

1219 MHz

Memory Clock

1250 MHz

Memory

24GB

Memory Size

3GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

384bit

936.2GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

82

SM Count

-

10496

Shading Units

1792

328

TMUs

112

ROPs

32

328

Tensor Cores

-

82

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

768 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

25.60 GPixel/s

556.0 GTexel/s

Texture Rate

89.60 GTexel/s

35.58 TFLOPS

FP16 (half)

-

35.58 TFLOPS

FP32 (float)

2.867 TFLOPS

556.0 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

350W

TDP

200W

750 W

Suggested PSU

550 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

1x 12-pin

Power Connectors

2x 6-pin

Graphics Processor

GA102

GPU Name

Tahiti

GA102-300-A1

GPU Variant

Tahiti PRO (215-0821056)

Ampere

Architecture

GCN 1.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

4.313 billion

628 mm²

Die Size

352 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

8.6

CUDA

-

6.6

Shader Model

5.1

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