GeForce RTX 4090 vs GeForce GTX 490
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 1536MB VRAM GeForce GTX 490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4090 's Advantages
Boost Clock2520MHz
More VRAM (24GB vs 1536GB)
Larger VRAM bandwidth (1.01TB/s vs 164.0GB/s)
15904 additional rendering cores
GeForce GTX 490 's Advantages
Lower TDP (365W vs 450W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090
+6982%
82580
GeForce GTX 490
1166
Graphics Card
Sep 2022
Release Date
Unknown
GeForce 40
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
2235 MHz
Base Clock
-
2520 MHz
Boost Clock
-
1313 MHz
Memory Clock
854 MHz
Memory
24GB
Memory Size
1536MB
GDDR6X
Memory Type
GDDR5
384bit
Memory Bus
384bit
1.01TB/s
Bandwidth
164.0GB/s
Render Config
128
SM Count
15
16384
Shading Units
480
512
TMUs
60
176
ROPs
48
512
Tensor Cores
-
128
RT Cores
-
128 KB (per SM)
L1 Cache
64 KB (per SM)
72 MB
L2 Cache
768 KB
Theoretical Performance
443.5 GPixel/s
Pixel Rate
18.24 GPixel/s
1290 GTexel/s
Texture Rate
36.48 GTexel/s
82.58 TFLOPS
FP16 (half)
-
82.58 TFLOPS
FP32 (float)
1166 GFLOPS
1290 GFLOPS
FP64 (double)
145.8 GFLOPS
Board Design
450W
TDP
365W
850 W
Suggested PSU
750 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
3x DVI
1x mini-DisplayPort
1x 16-pin
Power Connectors
2x 8-pin
Graphics Processor
AD102
GPU Name
GF100
AD102-300-A1
GPU Variant
GF100-375-A3
Ada Lovelace
Architecture
Fermi
TSMC
Foundry
TSMC
5 nm
Process Size
40 nm
76.3 billion
Transistors
3.1 billion
609 mm²
Die Size
529 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.3
Vulkan
N/A
8.9
CUDA
2.0
6.8
Shader Model
5.1
