AMD Radeon HD 7950 Boost vs AMD Radeon RX 6900 XT

VS

AMD Radeon HD 7950 Boost AMD Radeon RX 6900 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Boost and 16GB VRAM Radeon RX 6900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Boost 's Advantages

Lower TDP (200W vs 300W)

AMD Radeon RX 6900 XT 's Advantages

Released 8 years and 4 months late

Boost Clock has increased by 143% (2250MHz vs 925MHz)

More VRAM (16GB vs 3GB)

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

3328 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950 Boost

3.315 TFLOPS

Radeon RX 6900 XT +595%

23.04 TFLOPS

Radeon HD 7950 Boost

VS

Radeon RX 6900 XT

Graphics Card

Jun 2012

Release Date

Oct 2020

Southern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

850 MHz

Base Clock

1825 MHz

925 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

-

SM Count

-

28

Compute Units

80

1792

Shading Units

5120

112

TMUs

320

32

ROPs

128

-

Tensor Cores

-

RT Cores

80

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

4 MB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

288.0 GPixel/s

103.6 GTexel/s

Texture Rate

720.0 GTexel/s

-

FP16 (half)

46.08 TFLOPS

3.315 TFLOPS

FP32 (float)

23.04 TFLOPS

828.8 GFLOPS

FP64 (double)

1440 GFLOPS

Graphics Processor

Tahiti

GPU Name

Navi 21

Tahiti PRO2 (215-0821282)

GPU Variant

Navi 21 XTX (215-121000167)

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

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 Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.5

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