AMD Radeon RX 6750 GRE vs AMD Radeon HD 6490

VS

AMD Radeon RX 6750 GRE

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6750 GRE and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6750 GRE 's Advantages

Released 12 years and 3 months late

Boost Clock2581MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (432.0GB/s vs 16.00GB/s)

2240 additional rendering cores

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6750 GRE +3652%

13.21 TFLOPS

Radeon HD 6490

0.352 TFLOPS

Radeon RX 6750 GRE

VS

Radeon HD 6490

Graphics Card

Oct 2023

Release Date

Jul 2011

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2321 MHz

Base Clock

-

2581 MHz

Boost Clock

-

2250 MHz

Memory Clock

500 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

DDR2

192bit

Memory Bus

128bit

432.0GB/s

Bandwidth

16.00GB/s

Render Config

40

Compute Units

4

-

2560

Shading Units

320

160

TMUs

16

64

ROPs

8

-

40

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

165.2 GPixel/s

Pixel Rate

4.400 GPixel/s

413.0 GTexel/s

Texture Rate

8.800 GTexel/s

26.43 TFLOPS

FP16 (half)

-

13.21 TFLOPS

FP32 (float)

352.0 GFLOPS

825.9 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

39W

600 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Navi 22

GPU Name

Redwood

Navi 22 KXT

GPU Variant

Redwood LE

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

17.2 billion

Transistors

0.627 billion

335 mm²

Die Size

104 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

-

6.7

Shader Model

5.0

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