AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce GTX 275

VS

AMD Radeon HD 7970 GHz Edition

NVIDIA GeForce GTX 275

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 896MB VRAM GeForce GTX 275 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 GHz Edition 's Advantages

Released 3 years and 5 months late

Boost Clock1050MHz

More VRAM (3GB vs 896GB)

Larger VRAM bandwidth (288.0GB/s vs 127.0GB/s)

1808 additional rendering cores

NVIDIA GeForce GTX 275 's Advantages

Lower TDP (219W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +538%

4.301 TFLOPS

GeForce GTX 275

0.674 TFLOPS

Radeon HD 7970 GHz Edition

VS

GeForce GTX 275

Graphics Card

Jun 2012

Release Date

Jan 2009

Southern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1500 MHz

Memory Clock

1134 MHz

Memory

3GB

Memory Size

896MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

448bit

288.0GB/s

Bandwidth

127.0GB/s

Render Config

32

Compute Units

-

SM Count

30

2048

Shading Units

240

128

TMUs

80

32

ROPs

28

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

224 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

17.72 GPixel/s

134.4 GTexel/s

Texture Rate

50.64 GTexel/s

-

4.301 TFLOPS

FP32 (float)

673.9 GFLOPS

1075 GFLOPS

FP64 (double)

84.24 GFLOPS

Board Design

300W

TDP

219W

700 W

Suggested PSU

550 W

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

Outputs

2x DVI

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Tahiti

GPU Name

GT200B

Tahiti XT2 (215-0821065)

GPU Variant

G200-105-B3

GCN 1.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

1.4 billion

352 mm²

Die Size

470 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.3

5.1

Shader Model

4.0

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