AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce 8800 GT

VS

AMD Radeon HD 7970 GHz Edition

NVIDIA GeForce 8800 GT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 512MB VRAM GeForce 8800 GT 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 4 years and 8 months late

Boost Clock1050MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 57.60GB/s)

1936 additional rendering cores

NVIDIA GeForce 8800 GT 's Advantages

Lower TDP (125W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +1180%

4.301 TFLOPS

GeForce 8800 GT

0.336 TFLOPS

Radeon HD 7970 GHz Edition

VS

GeForce 8800 GT

Graphics Card

Jun 2012

Release Date

Oct 2007

Southern Islands

Generation

GeForce 8

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

900 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

57.60GB/s

Render Config

32

Compute Units

-

SM Count

14

2048

Shading Units

112

128

TMUs

56

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

64 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

9.600 GPixel/s

134.4 GTexel/s

Texture Rate

33.60 GTexel/s

-

4.301 TFLOPS

FP32 (float)

336.0 GFLOPS

1075 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

125W

700 W

Suggested PSU

300 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 Processor

Tahiti

GPU Name

G92

Tahiti XT2 (215-0821065)

GPU Variant

G92-270-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

4.313 billion

Transistors

0.754 billion

352 mm²

Die Size

324 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

1.1

5.1

Shader Model

4.0

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