AMD Radeon RX 7800 XT vs AMD Radeon HD 7950 Mac Edition

VS

AMD Radeon RX 7800 XT AMD Radeon HD 7950 Mac Edition

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 3GB VRAM Radeon HD 7950 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 10 years and 5 months late

Boost Clock2430MHz

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (624.1GB/s vs 240.0GB/s)

2048 additional rendering cores

AMD Radeon HD 7950 Mac Edition 's Advantages

Lower TDP (200W vs 263W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +1201%

37.32 TFLOPS

Radeon HD 7950 Mac Edition

2.867 TFLOPS

Radeon RX 7800 XT

VS

Radeon HD 7950 Mac Edition

Graphics Card

Aug 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

1295 MHz

Base Clock

-

2430 MHz

Boost Clock

-

2438 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

624.1GB/s

Bandwidth

240.0GB/s

Render Config

-

SM Count

-

60

Compute Units

28

3840

Shading Units

1792

240

TMUs

112

96

ROPs

32

-

Tensor Cores

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

Theoretical Performance

233.3 GPixel/s

Pixel Rate

25.60 GPixel/s

583.2 GTexel/s

Texture Rate

89.60 GTexel/s

74.65 TFLOPS

FP16 (half)

-

37.32 TFLOPS

FP32 (float)

2.867 TFLOPS

1166 GFLOPS

FP64 (double)

716.8 GFLOPS

Graphics Processor

Navi 32

GPU Name

Tahiti

Navi 32 XT (215-180000006)

GPU Variant

Tahiti PRO (215-0821056)

RDNA 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

4.313 billion

346 mm²

Die Size

352 mm²

Board Design

263W

TDP

200W

600 W

Suggested PSU

550 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

2x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

CUDA

-

6.7

Shader Model

5.1

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