AMD Radeon HD 7950 vs NVIDIA GeForce 8800 GTS 320

VS

AMD Radeon HD 7950

NVIDIA GeForce 8800 GTS 320

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 and 320MB VRAM GeForce 8800 GTS 320 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 's Advantages

Released 4 years and 11 months late

More VRAM (3GB vs 320GB)

Larger VRAM bandwidth (240.0GB/s vs 63.36GB/s)

1696 additional rendering cores

NVIDIA GeForce 8800 GTS 320 's Advantages

Lower TDP (143W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 +1157%

2.867 TFLOPS

GeForce 8800 GTS 320

0.228 TFLOPS

Radeon HD 7950

VS

GeForce 8800 GTS 320

Graphics Card

Jan 2012

Release Date

Feb 2007

Southern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

792 MHz

Memory

3GB

Memory Size

320MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

320bit

240.0GB/s

Bandwidth

63.36GB/s

Render Config

28

Compute Units

-

SM Count

12

1792

Shading Units

96

112

TMUs

24

32

ROPs

20

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

80 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

10.26 GPixel/s

89.60 GTexel/s

Texture Rate

24.62 GTexel/s

-

2.867 TFLOPS

FP32 (float)

228.1 GFLOPS

716.8 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

143W

550 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

G80

Tahiti PRO (215-0821056)

GPU Variant

G80-100-K0-A2

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

4.313 billion

Transistors

0.681 billion

352 mm²

Die Size

484 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1 (1.0)

1.2

Vulkan

N/A

-

CUDA

1.0

5.1

Shader Model

4.0

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