AMD Radeon R5 340X OEM vs AMD Radeon HD 6790

VS

AMD Radeon R5 340X OEM

AMD Radeon HD 6790

We compared two Desktop platform GPUs: 2GB VRAM Radeon R5 340X OEM and 1024MB VRAM Radeon HD 6790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 340X OEM 's Advantages

Released 4 years and 1 months late

More VRAM (2GB vs 1024GB)

Lower TDP (65W vs 150W)

AMD Radeon HD 6790 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 16.00GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 340X OEM

0.691 TFLOPS

Radeon HD 6790 +94%

1.344 TFLOPS

Radeon R5 340X OEM

VS

Radeon HD 6790

Graphics Card

May 2015

Release Date

Apr 2011

Pirate Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

16.00GB/s

Bandwidth

134.4GB/s

Render Config

6

Compute Units

10

-

384

Shading Units

800

24

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

7.200 GPixel/s

Pixel Rate

13.44 GPixel/s

21.60 GTexel/s

Texture Rate

33.60 GTexel/s

-

691.2 GFLOPS

FP32 (float)

1344 GFLOPS

43.20 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

1x DVI 1x DisplayPort 1.2

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Oland

GPU Name

Barts

Oland XT (215-0837000)

GPU Variant

Barts LE (215-0798002)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

1.7 billion

77 mm²

Die Size

255 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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