AMD Radeon HD 6870 X2 vs NVIDIA GeForce 7800 GTX 512

VS

AMD Radeon HD 6870 X2 NVIDIA GeForce 7800 GTX 512

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 512MB VRAM GeForce 7800 GTX 512 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

Released 5 years and 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 51.20GB/s)

1120 additional rendering cores

NVIDIA GeForce 7800 GTX 512 's Advantages

Lower TDP (108W vs 300W)

Score

Radeon HD 6870 X2

VS

GeForce 7800 GTX 512

Graphics Card

Jul 2011

Release Date

Nov 2005

Northern Islands

Generation

GeForce 7 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

-

14

Compute Units

-

1120

Shading Units

-

56

TMUs

24

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

8.000 GPixel/s

50.40 GTexel/s

Texture Rate

12.00 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

G70

Barts XT (215-0798000)

GPU Variant

GF-7800-GTX-512-A2

TeraScale 2

Architecture

Curie

TSMC

Foundry

TSMC

40 nm

Process Size

110 nm

1.7 billion

Transistors

0.302 billion

255 mm²

Die Size

333 mm²

Board Design

300W

TDP

108W

700 W

Suggested PSU

300 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

9.0c (9_3)

4.4

OpenGL

2.1

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

3.0

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