AMD Radeon HD 6790 vs NVIDIA GeForce GTX 460

VS

AMD Radeon HD 6790

NVIDIA GeForce GTX 460

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 768MB VRAM GeForce GTX 460 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

Released 9 months late

More VRAM (1024GB vs 768GB)

Larger VRAM bandwidth (134.4GB/s vs 86.40GB/s)

464 additional rendering cores

Lower TDP (150W vs 160W)

Score

Benchmark

FP32 (float)

Radeon HD 6790 +48%

1.344 TFLOPS

GeForce GTX 460

0.907 TFLOPS

Radeon HD 6790

VS

GeForce GTX 460

Graphics Card

Apr 2011

Release Date

Jul 2010

Northern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

768MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

134.4GB/s

Bandwidth

86.40GB/s

Render Config

10

Compute Units

-

SM Count

7

800

Shading Units

336

40

TMUs

56

16

ROPs

24

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

9.450 GPixel/s

33.60 GTexel/s

Texture Rate

37.80 GTexel/s

-

1344 GFLOPS

FP32 (float)

907.2 GFLOPS

-

FP64 (double)

75.60 GFLOPS

Board Design

150W

TDP

160W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 6-pin

Power Connectors

-

Graphics Processor

Barts

GPU Name

GF104

Barts LE (215-0798002)

GPU Variant

GF104-300-KB-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.95 billion

255 mm²

Die Size

332 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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