GPU Comparison
RADEON
AMD Radeon RX 6600 XT
CORE STATE
Navi 23
VRAM
8 GB
CLOCK SPEED
2589 MHz
TDP
160 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
VS
GEFORCE
GeForce RTX 5090 Mobile
CORE STATE
GB203
VRAM
24 GB
CLOCK SPEED
1515 MHz
TDP
95 W
BUS WIDTH
256 bit
ARCHITECTURE
Blackwell 2.0
PROCESS
5 nm
LAUNCH DATE
2025
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
RX 6600 XT
RTX 5090 Mobile
Core Specs
Shading Units
2,048
10,496
+412.5%
Shaders
2,048
10,496
+412.5%
TMUs
128
328
+156.3%
ROPs
64
112
+75.0%
Compute Units
32
—
SM Count
—
82
Clocks
Base Clock
1968 MHz
990 MHz
Boost Clock
2589 MHz
1515 MHz
Game Clock
2359 MHz
—
Memory Clock
2000 MHz
16 Gbps effective
1750 MHz
28 Gbps effective
Memory
Memory Size
8 GB
24 GB
VRAM (MB)
8,192
24,576
+200.0%
Memory Type
GDDR6
GDDR7
Memory Bus
128 bit
256 bit
Bandwidth
256.0 GB/s
896.0 GB/s
Cache
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
2 MB
64 MB
L3 Cache
32 MB
—
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
165.7 GPixel/s
169.7 GPixel/s
Texture Rate
331.4 GTexel/s
496.9 GTexel/s
FP32 (TFLOPS)
10.60 TFLOPS
31.80 TFLOPS
FP64 (TFLOPS)
662.8 GFLOPS (1:16)
496.9 GFLOPS (1:64)
FP16 (TFLOPS)
21.21 TFLOPS (2:1)
31.80 TFLOPS (1:1)
AI/RT
RT Cores
32
82
+156.3%
Tensor Cores
—
328
Power
TDP
160 W
95 W
TDP (W)
160
95
-40.6%
Suggested PSU
450 W
—
Power Connectors
1x 8-pin
None
Architecture
Architecture
RDNA 2.0
Blackwell 2.0
GPU Name
Navi 23
GB203
Generation
Navi II
(RX 6000)
GeForce 50 Mobile
Process Size
7 nm
5 nm
Transistors
11,060 million
45,600 million
Die Size
237 mm²
378 mm²
Foundry
TSMC
TSMC
Density
46.7M / mm²
120.6M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.1
3.0
CUDA
—
12.0
Shader Model
6.8
6.8
Physical
Slot Width
Dual-slot
IGP
Length
190 mm
7.5 inches
—
Height
110 mm
4.3 inches
—
Outputs
1x HDMI 2.13x DisplayPort 1.4a
Portable Device Dependent
Bus Interface
PCIe 4.0 x8
PCIe 5.0 x16
Other
Launch Price
379 USD
—
Production
End-of-life
Active
Predecessor
Navi
GeForce 40 Mobile
Successor
Navi III
—