AMD Radeon RX 7800 vs NVIDIA GeForce GTX 660 Ti

VS

AMD Radeon RX 7800

NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages

Released 10 years and 5 months late

Boost Clock has increased by 186% (2800MHz vs 980MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 144.2GB/s)

2496 additional rendering cores

NVIDIA GeForce GTX 660 Ti 's Advantages

Lower TDP (150W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 +1316%

37.32 TFLOPS

GeForce GTX 660 Ti

2.634 TFLOPS

Radeon RX 7800

VS

GeForce GTX 660 Ti

Graphics Card

Jan 2023

Release Date

Aug 2012

Navi III

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

915 MHz

2800 MHz

Boost Clock

980 MHz

2250 MHz

Memory Clock

1502 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

192bit

576.0GB/s

Bandwidth

144.2GB/s

Render Config

60

Compute Units

-

3840

Shading Units

1344

240

TMUs

112

128

ROPs

24

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

384 KB

64 MB

L3 Cache

-

Theoretical Performance

358.4 GPixel/s

Pixel Rate

27.44 GPixel/s

672.0 GTexel/s

Texture Rate

109.8 GTexel/s

86.02 TFLOPS

FP16 (half)

-

43.01 TFLOPS

FP32 (float)

2.634 TFLOPS

1344 GFLOPS

FP64 (double)

109.8 GFLOPS

Board Design

300W

TDP

150W

700 W

Suggested PSU

450 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 32

GPU Name

GK104

Navi 32 XT

GPU Variant

GK104-300-KD-A2

RDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

Unknown

Transistors

3.54 billion

346 mm²

Die Size

294 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.7

Shader Model

5.1

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