AMD Radeon RX 7800 vs AMD Radeon HD 7790

VS

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 1024MB VRAM Radeon HD 7790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages

Released 9 years and 10 months late

Boost Clock2800MHz

More VRAM (16GB vs 1GB)

Larger VRAM bandwidth (576.0GB/s vs 96.00GB/s)

2944 additional rendering cores

AMD Radeon HD 7790 's Advantages

Lower TDP (85W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 +1982%

37.32 TFLOPS

Radeon HD 7790

1.792 TFLOPS

Radeon RX 7800

VS

Radeon HD 7790

Graphics Card

Jan 2023

Release Date

Mar 2013

Navi III

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

-

2800 MHz

Boost Clock

-

2250 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

60

Compute Units

14

3840

Shading Units

896

240

TMUs

56

128

ROPs

16

-

Tensor Cores

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

Theoretical Performance

358.4 GPixel/s

Pixel Rate

16.00 GPixel/s

672.0 GTexel/s

Texture Rate

56.00 GTexel/s

86.02 TFLOPS

FP16 (half)

-

43.01 TFLOPS

FP32 (float)

1.792 TFLOPS

1344 GFLOPS

FP64 (double)

112.0 GFLOPS

Graphics Processor

Navi 32

GPU Name

Bonaire

Navi 32 XT

GPU Variant

Bonaire XT (215-0839039)

RDNA 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

Unknown

Transistors

2.08 billion

346 mm²

Die Size

160 mm²

Board Design

300W

TDP

85W

700 W

Suggested PSU

250 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.0

1.3

Vulkan

1.2

-

CUDA

-

6.7

Shader Model

6.3

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