Home GPU Comparison NVIDIA GeForce RTX 3090 vs ATI Radeon HD 3850 X3

NVIDIA GeForce RTX 3090 vs ATI Radeon HD 3850 X3

NVIDIA GeForce RTX 3090
VS
ATI Radeon HD 3850 X3
NVIDIA GeForce RTX 3090
ATI Radeon HD 3850 X3
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 and 512MB VRAM Radeon HD 3850 X3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 's Advantages
Boost Clock1695MHz
More VRAM (24GB vs 512GB)
Larger VRAM bandwidth (936.2GB/s vs 54.40GB/s)
10176 additional rendering cores
ATI Radeon HD 3850 X3 's Advantages
Lower TDP (145W vs 350W)

Score

Benchmark

FP32 (float)
GeForce RTX 3090 +8213%
35.58 TFLOPS
Radeon HD 3850 X3
0.428 TFLOPS
VS

Graphics Card

Sep 2020
Release Date
Unknown
GeForce 30
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

1395 MHz
Base Clock
-
1695 MHz
Boost Clock
-
1219 MHz
Memory Clock
850 MHz

Memory

24GB
Memory Size
512MB
GDDR6X
Memory Type
GDDR3
384bit
Memory Bus
256bit
936.2GB/s
Bandwidth
54.40GB/s

Render Config

-
Compute Units
4
82
SM Count
-
10496
Shading Units
320
328
TMUs
16
112
ROPs
16
328
Tensor Cores
-
82
RT Cores
-
128 KB (per SM)
L1 Cache
-
6 MB
L2 Cache
256 KB
-
-
-

Theoretical Performance

189.8 GPixel/s
Pixel Rate
10.70 GPixel/s
556.0 GTexel/s
Texture Rate
10.70 GTexel/s
35.58 TFLOPS
FP16 (half)
-
35.58 TFLOPS
FP32 (float)
428.2 GFLOPS
556.0 GFLOPS
FP64 (double)
-

Board Design

350W
TDP
145W
750 W
Suggested PSU
300 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
4x DVI
1x 12-pin
Power Connectors
1x 8-pin

Graphics Processor

GA102
GPU Name
RV670
GA102-300-A1
GPU Variant
RV670 PRO (215-0708003)
Ampere
Architecture
TeraScale
Samsung
Foundry
TSMC
8 nm
Process Size
55 nm
28.3 billion
Transistors
0.666 billion
628 mm²
Die Size
192 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full) 4.0 (partial)
3.0
OpenCL
N/A
1.3
Vulkan
N/A
8.6
CUDA
-
6.6
Shader Model
4.1

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