AMD Radeon HD 7950 Mac Edition vs AMD Radeon RX 6800 XT

VS

AMD Radeon HD 7950 Mac Edition

AMD Radeon RX 6800 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Mac Edition 's Advantages

Lower TDP (200W vs 300W)

AMD Radeon RX 6800 XT 's Advantages

Released 7 years and 7 months late

Boost Clock2250MHz

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (512.0GB/s vs 240.0GB/s)

2816 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition

2.867 TFLOPS

Radeon RX 6800 XT +623%

20.74 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon RX 6800 XT

Graphics Card

Mar 2013

Release Date

Oct 2020

Southern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2250 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

3GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

512.0GB/s

Render Config

28

Compute Units

72

-

1792

Shading Units

4608

112

TMUs

288

32

ROPs

128

-

RT Cores

72

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

288.0 GPixel/s

89.60 GTexel/s

Texture Rate

648.0 GTexel/s

-

FP16 (half)

41.47 TFLOPS

2.867 TFLOPS

FP32 (float)

20.74 TFLOPS

716.8 GFLOPS

FP64 (double)

1296 GFLOPS

Board Design

200W

TDP

300W

550 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Tahiti

GPU Name

Navi 21

Tahiti PRO (215-0821056)

GPU Variant

Navi 21 XT (215-121000177)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

4.313 billion

Transistors

26.8 billion

352 mm²

Die Size

520 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.5

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