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GPU Comparison
AMD Radeon RX 6600 XT vs NVIDIA GeForce GTX 490
AMD Radeon RX 6600 XT vs NVIDIA GeForce GTX 490
VS
AMD Radeon RX 6600 XT
NVIDIA GeForce GTX 490
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 1536MB VRAM GeForce GTX 490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600 XT 's Advantages
Boost Clock2589MHz
More VRAM (8GB vs 1GB)
Larger VRAM bandwidth (256.0GB/s vs 164.0GB/s)
1568 additional rendering cores
Lower TDP (160W vs 365W)
Score
Benchmark
FP32 (float)
Radeon RX 6600 XT
+809%
10.6 TFLOPS
GeForce GTX 490
1.166 TFLOPS
Radeon RX 6600 XT
VS
GeForce GTX 490
Graphics Card
Jul 2021
Release Date
Unknown
Navi II
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1968 MHz
Base Clock
-
2589 MHz
Boost Clock
-
2000 MHz
Memory Clock
854 MHz
Memory
8GB
Memory Size
1536MB
GDDR6
Memory Type
GDDR5
128bit
Memory Bus
384bit
256.0GB/s
Bandwidth
164.0GB/s
Render Config
-
SM Count
15
32
Compute Units
-
2048
Shading Units
480
128
TMUs
60
64
ROPs
48
-
Tensor Cores
-
32
RT Cores
-
128 KB per Array
L1 Cache
64 KB (per SM)
2 MB
L2 Cache
768 KB
Theoretical Performance
165.7 GPixel/s
Pixel Rate
18.24 GPixel/s
331.4 GTexel/s
Texture Rate
36.48 GTexel/s
21.21 TFLOPS
FP16 (half)
-
10.60 TFLOPS
FP32 (float)
1166 GFLOPS
662.8 GFLOPS
FP64 (double)
145.8 GFLOPS
Graphics Processor
Navi 23
GPU Name
GF100
Navi 23 XT (215-130000006)
GPU Variant
GF100-375-A3
RDNA 2.0
Architecture
Fermi
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
11.06 billion
Transistors
3.1 billion
237 mm²
Die Size
529 mm²
Board Design
160W
TDP
365W
450 W
Suggested PSU
750 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
3x DVI 1x mini-DisplayPort
1x 8-pin
Power Connectors
2x 8-pin
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
1.1
1.3
Vulkan
N/A
-
CUDA
2.0
6.7
Shader Model
5.1
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