AMD Radeon HD 7970 vs ATI Radeon HD 2950 PRO

VS

AMD Radeon HD 7970 ATI Radeon HD 2950 PRO

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 256MB VRAM Radeon HD 2950 PRO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 38.40GB/s)

1728 additional rendering cores

ATI Radeon HD 2950 PRO 's Advantages

Lower TDP (75W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +886%

3.789 TFLOPS

Radeon HD 2950 PRO

0.384 TFLOPS

Radeon HD 7970

VS

Radeon HD 2950 PRO

Graphics Card

Dec 2011

Release Date

Unknown

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

600 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

38.40GB/s

Render Config

-

SM Count

-

32

Compute Units

4

2048

Shading Units

320

128

TMUs

16

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

256 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

9.600 GPixel/s

118.4 GTexel/s

Texture Rate

9.600 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

384.0 GFLOPS

947.2 GFLOPS

FP64 (double)

76.80 GFLOPS

Graphics Processor

Tahiti

GPU Name

RV670

Tahiti XT (215-0821060)

GPU Variant

RV670 PRO ES (215-0708001)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.666 billion

352 mm²

Die Size

192 mm²

Board Design

250W

TDP

75W

600 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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