AMD Radeon HD 7870 XT vs AMD Radeon RX 7950 XT

VS

AMD Radeon HD 7870 XT

AMD Radeon RX 7950 XT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 20GB VRAM Radeon RX 7950 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 300W)

AMD Radeon RX 7950 XT 's Advantages

Boost Clock has increased by 208% (3000MHz vs 975MHz)

More VRAM (20GB vs 2GB)

Larger VRAM bandwidth (800.0GB/s vs 192.0GB/s)

3840 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT

2.995 TFLOPS

Radeon RX 7950 XT +2053%

64.51 TFLOPS

Radeon HD 7870 XT

VS

Radeon RX 7950 XT

Graphics Card

Nov 2012

Release Date

Unknown

Southern Islands

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

925 MHz

Base Clock

2000 MHz

975 MHz

Boost Clock

3000 MHz

1500 MHz

Memory Clock

2500 MHz

Memory

2GB

Memory Size

20GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

320bit

192.0GB/s

Bandwidth

800.0GB/s

Render Config

24

Compute Units

84

-

1536

Shading Units

5376

96

TMUs

336

32

ROPs

192

-

RT Cores

84

16 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

-

L3 Cache

80 MB

Theoretical Performance

31.20 GPixel/s

Pixel Rate

576.0 GPixel/s

93.60 GTexel/s

Texture Rate

1008 GTexel/s

-

FP16 (half)

129.0 TFLOPS

2.995 TFLOPS

FP32 (float)

64.51 TFLOPS

748.8 GFLOPS

FP64 (double)

2.016 TFLOPS

Board Design

185W

TDP

300W

450 W

Suggested PSU

700 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Tahiti

GPU Name

Navi 31

Tahiti LE (215-0821122)

GPU Variant

Navi 31 XT+

GCN 1.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

4.313 billion

Transistors

57.7 billion

352 mm²

Die Size

529 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.2

1.2

Vulkan

1.3

-

5.1

Shader Model

6.7

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