AMD Radeon HD 7970 vs AMD Radeon HD 7720 OEM

VS

AMD Radeon HD 7970 AMD Radeon HD 7720 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 1024MB VRAM Radeon HD 7720 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

More VRAM (3GB vs 1GB)

Larger VRAM bandwidth (264.0GB/s vs 134.4GB/s)

1248 additional rendering cores

AMD Radeon HD 7720 OEM 's Advantages

Released 1 years and 3 months late

Lower TDP (150W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +181%

3.789 TFLOPS

Radeon HD 7720 OEM

1.344 TFLOPS

Radeon HD 7970

VS

Radeon HD 7720 OEM

Graphics Card

Dec 2011

Release Date

Mar 2013

Southern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

1050 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

32

Compute Units

10

2048

Shading Units

800

128

TMUs

40

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

26.88 GPixel/s

118.4 GTexel/s

Texture Rate

33.60 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

1344 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Graphics Processor

Tahiti

GPU Name

Barts

Tahiti XT (215-0821060)

GPU Variant

Barts LE (215-0798002)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.7 billion

352 mm²

Die Size

255 mm²

Board Design

250W

TDP

150W

600 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

5.0

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