Home GPU Comparison NVIDIA Quadro RTX 4000 vs NVIDIA RTX A4000

NVIDIA Quadro RTX 4000 vs NVIDIA RTX A4000

We compared two Professional market GPUs: 8GB VRAM Quadro RTX 4000 and 16GB VRAM RTX A4000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000 's Advantages
Released 2 years and 5 months late
Boost Clock has increased by 1% (1560MHz vs 1545MHz)
More VRAM (16GB vs 8GB)
Larger VRAM bandwidth (448.0GB/s vs 416.0GB/s)
3840 additional rendering cores
Lower TDP (140W vs 160W)

Score

Benchmark

FP32 (float)
Quadro RTX 4000
7.119 TFLOPS
RTX A4000 +169%
19.17 TFLOPS
3DMark Time Spy
Quadro RTX 4000
7857
RTX A4000 +41%
11086
VS

Graphics Card

Nov 2018
Release Date
Apr 2021
Quadro
Generation
Quadro Ampere
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

1005 MHz
Base Clock
735 MHz
1545 MHz
Boost Clock
1560 MHz
1625 MHz
Memory Clock
1750 MHz

Memory

8GB
Memory Size
16GB
GDDR6
Memory Type
GDDR6
256bit
Memory Bus
256bit
416.0GB/s
Bandwidth
448.0GB/s

Render Config

-
-
-
36
SM Count
48
2304
Shading Units
6144
144
TMUs
192
64
ROPs
96
288
Tensor Cores
192
36
RT Cores
48
64 KB (per SM)
L1 Cache
128 KB (per SM)
4 MB
L2 Cache
4 MB
-
-
-

Theoretical Performance

98.88 GPixel/s
Pixel Rate
149.8 GPixel/s
222.5 GTexel/s
Texture Rate
299.5 GTexel/s
14.24 TFLOPS
FP16 (half)
19.17 TFLOPS
7.119 TFLOPS
FP32 (float)
19.17 TFLOPS
222.5 GFLOPS
FP64 (double)
299.5 GFLOPS

Board Design

160W
TDP
140W
450 W
Suggested PSU
300 W
3x DisplayPort 1.4a 1x USB Type-C
Outputs
4x DisplayPort 1.4a
1x 8-pin
Power Connectors
1x 6-pin

Graphics Processor

TU104
GPU Name
GA104
TU104-850-A1
GPU Variant
GA104-875-A1
Turing
Architecture
Ampere
TSMC
Foundry
Samsung
12 nm
Process Size
8 nm
13.6 billion
Transistors
17.4 billion
545 mm²
Die Size
392 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
7.5
CUDA
8.6
6.6
Shader Model
6.7

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