AMD Radeon HD 7870 XT vs AMD Radeon RX 6950 XT

VS

AMD Radeon HD 7870 XT

AMD Radeon RX 6950 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 16GB VRAM Radeon RX 6950 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Lower TDP (185W vs 335W)

AMD Radeon RX 6950 XT 's Advantages

Released 9 years and 6 months late

Boost Clock has increased by 137% (2310MHz vs 975MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 192.0GB/s)

3584 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT

2.995 TFLOPS

Radeon RX 6950 XT +689%

23.65 TFLOPS

Radeon HD 7870 XT

VS

Radeon RX 6950 XT

Graphics Card

Nov 2012

Release Date

May 2022

Southern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

925 MHz

Base Clock

1860 MHz

975 MHz

Boost Clock

2310 MHz

1500 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

192.0GB/s

Bandwidth

576.0GB/s

Render Config

24

Compute Units

80

-

1536

Shading Units

5120

96

TMUs

320

32

ROPs

128

-

RT Cores

80

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

31.20 GPixel/s

Pixel Rate

295.7 GPixel/s

93.60 GTexel/s

Texture Rate

739.2 GTexel/s

-

FP16 (half)

47.31 TFLOPS

2.995 TFLOPS

FP32 (float)

23.65 TFLOPS

748.8 GFLOPS

FP64 (double)

1478 GFLOPS

Board Design

185W

TDP

335W

450 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

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Tahiti

GPU Name

Navi 21

Tahiti LE (215-0821122)

GPU Variant

Navi 21 KXTX (215-121000289)

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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