AMD Radeon HD 7970 X2 vs AMD Radeon RX 7900 XT

VS

AMD Radeon HD 7970 X2

AMD Radeon RX 7900 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 20GB VRAM Radeon RX 7900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Released 10 years and 3 months late

Boost Clock2394MHz

More VRAM (20GB vs 3GB)

Larger VRAM bandwidth (800.0GB/s vs 264.0GB/s)

3328 additional rendering cores

Lower TDP (300W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2

3.789 TFLOPS

Radeon RX 7900 XT +1258%

51.48 TFLOPS

Radeon HD 7970 X2

VS

Radeon RX 7900 XT

Graphics Card

Aug 2012

Release Date

Nov 2022

Southern Islands

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1387 MHz

-

Boost Clock

2394 MHz

1375 MHz

Memory Clock

2500 MHz

Memory

3GB

Memory Size

20GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

320bit

264.0GB/s

Bandwidth

800.0GB/s

Render Config

32

Compute Units

84

-

2048

Shading Units

5376

128

TMUs

336

32

ROPs

192

-

RT Cores

84

16 KB (per CU)

L1 Cache

256 KB per Array

768 KB

L2 Cache

6 MB

-

L3 Cache

80 MB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

459.6 GPixel/s

118.4 GTexel/s

Texture Rate

804.4 GTexel/s

-

FP16 (half)

103.0 TFLOPS

3.789 TFLOPS

FP32 (float)

51.48 TFLOPS

947.2 GFLOPS

FP64 (double)

1.609 TFLOPS

Board Design

500W

TDP

300W

900 W

Suggested PSU

700 W

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

Outputs

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

3x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

New Zealand

GPU Name

Navi 31

-

GPU Variant

Navi 31 XT (215-145000156)

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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