AMD Radeon RX 6700 XT vs AMD Radeon HD 7950

VS

AMD Radeon RX 6700 XT

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6700 XT and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6700 XT 's Advantages

Released 9 years and 2 months late

Boost Clock2581MHz

More VRAM (12GB vs 3GB)

Larger VRAM bandwidth (384.0GB/s vs 240.0GB/s)

768 additional rendering cores

AMD Radeon HD 7950 's Advantages

Lower TDP (200W vs 230W)

Score

Benchmark

FP32 (float)

Radeon RX 6700 XT +360%

13.21 TFLOPS

Radeon HD 7950

2.867 TFLOPS

3DMark Time Spy

Radeon RX 6700 XT +566%

12779

Radeon HD 7950

1917

Radeon RX 6700 XT

VS

Radeon HD 7950

Graphics Card

Mar 2021

Release Date

Jan 2012

Navi II

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2321 MHz

Base Clock

-

2581 MHz

Boost Clock

-

2000 MHz

Memory Clock

1250 MHz

Memory

12GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

384bit

384.0GB/s

Bandwidth

240.0GB/s

Render Config

40

Compute Units

28

-

2560

Shading Units

1792

160

TMUs

112

64

ROPs

32

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

768 KB

96 MB

L3 Cache

-

Theoretical Performance

165.2 GPixel/s

Pixel Rate

25.60 GPixel/s

413.0 GTexel/s

Texture Rate

89.60 GTexel/s

26.43 TFLOPS

FP16 (half)

-

13.21 TFLOPS

FP32 (float)

2.867 TFLOPS

825.9 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

230W

TDP

200W

550 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 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 22

GPU Name

Tahiti

Navi 22 XT (215-127000006)

GPU Variant

Tahiti PRO (215-0821056)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

17.2 billion

Transistors

4.313 billion

335 mm²

Die Size

352 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.5

Shader Model

5.1

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