AMD Radeon HD 8990 OEM vs NVIDIA GeForce 8800 GT

VS

AMD Radeon HD 8990 OEM

NVIDIA GeForce 8800 GT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM 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 8990 OEM 's Advantages

Released 5 years and 6 months late

Boost Clock1000MHz

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 375W)

Score

Benchmark

FP32 (float)

Radeon HD 8990 OEM +1119%

4.096 TFLOPS

GeForce 8800 GT

0.336 TFLOPS

Radeon HD 8990 OEM

VS

GeForce 8800 GT

Graphics Card

Apr 2013

Release Date

Oct 2007

Sea Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 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

32.00 GPixel/s

Pixel Rate

9.600 GPixel/s

128.0 GTexel/s

Texture Rate

33.60 GTexel/s

-

4.096 TFLOPS

FP32 (float)

336.0 GFLOPS

1024 GFLOPS

FP64 (double)

-

Board Design

375W

TDP

125W

750 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Malta

GPU Name

G92

Malta XT (215-0849026)

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

365 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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