AMD Radeon HD 7970 vs NVIDIA GeForce GTX 280

VS

AMD Radeon HD 7970

NVIDIA GeForce GTX 280

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 1024MB VRAM GeForce GTX 280 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 3 years and 6 months late

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (264.0GB/s vs 141.7GB/s)

1808 additional rendering cores

NVIDIA GeForce GTX 280 's Advantages

Lower TDP (236W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +509%

3.789 TFLOPS

GeForce GTX 280

0.622 TFLOPS

Radeon HD 7970

VS

GeForce GTX 280

Graphics Card

Dec 2011

Release Date

Jun 2008

Southern Islands

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1107 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

512bit

264.0GB/s

Bandwidth

141.7GB/s

Render Config

32

Compute Units

-

SM Count

30

2048

Shading Units

240

128

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

19.26 GPixel/s

118.4 GTexel/s

Texture Rate

48.16 GTexel/s

-

3.789 TFLOPS

FP32 (float)

622.1 GFLOPS

947.2 GFLOPS

FP64 (double)

77.76 GFLOPS

Board Design

250W

TDP

236W

600 W

Suggested PSU

550 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 + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

GT200

Tahiti XT (215-0821060)

GPU Variant

G200-300-A2

GCN 1.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

4.313 billion

Transistors

1.4 billion

352 mm²

Die Size

576 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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