AMD Radeon HD 7850 vs NVIDIA GeForce RTX 4090

VS

AMD Radeon HD 7850

NVIDIA GeForce RTX 4090

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 24GB VRAM GeForce RTX 4090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

Lower TDP (130W vs 450W)

NVIDIA GeForce RTX 4090 's Advantages

Released 10 years and 6 months late

Boost Clock2520MHz

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1.01TB/s vs 153.6GB/s)

15360 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7850

1.761 TFLOPS

GeForce RTX 4090 +4589%

82.58 TFLOPS

3DMark Time Spy

Radeon HD 7850

1312

GeForce RTX 4090 +2681%

36499

Radeon HD 7850

VS

GeForce RTX 4090

Graphics Card

Mar 2012

Release Date

Sep 2022

Southern Islands

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2235 MHz

-

Boost Clock

2520 MHz

1200 MHz

Memory Clock

1313 MHz

Memory

2GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

256bit

Memory Bus

384bit

153.6GB/s

Bandwidth

1.01TB/s

Render Config

16

Compute Units

-

SM Count

128

1024

Shading Units

16384

64

TMUs

512

32

ROPs

176

-

Tensor Cores

512

-

RT Cores

128

16 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

72 MB

-

Theoretical Performance

27.52 GPixel/s

Pixel Rate

443.5 GPixel/s

55.04 GTexel/s

Texture Rate

1290 GTexel/s

-

FP16 (half)

82.58 TFLOPS

1.761 TFLOPS

FP32 (float)

82.58 TFLOPS

110.1 GFLOPS

FP64 (double)

1290 GFLOPS

Board Design

130W

TDP

450W

300 W

Suggested PSU

850 W

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

Outputs

1x HDMI 2.13x DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 16-pin

Graphics Processor

Pitcairn

GPU Name

AD102

Pitcairn PRO (215-0828062)

GPU Variant

AD102-300-A1

GCN 1.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

2.8 billion

Transistors

76.3 billion

212 mm²

Die Size

609 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

8.9

5.1

Shader Model

6.8

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