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
RTX A4000
CORE STATE
GA104
VRAM
16 GB
CLOCK SPEED
1560 MHz
TDP
140 W
BUS WIDTH
256 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
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 A4000
Core Specs
Shading Units
2,048
6,144
+200.0%
Shaders
2,048
6,144
+200.0%
TMUs
128
192
+50.0%
ROPs
64
96
+50.0%
Compute Units
32
—
SM Count
—
48
Clocks
Base Clock
1968 MHz
735 MHz
Boost Clock
2589 MHz
1560 MHz
Game Clock
2359 MHz
—
Memory Clock
2000 MHz
16 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
8 GB
16 GB
VRAM (MB)
8,192
16,384
+100.0%
Memory Type
GDDR6
GDDR6
Memory Bus
128 bit
256 bit
Bandwidth
256.0 GB/s
448.0 GB/s
Cache
L1 Cache
128 KB per Array
128 KB (per SM)
L2 Cache
2 MB
4 MB
L3 Cache
32 MB
—
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
165.7 GPixel/s
149.8 GPixel/s
Texture Rate
331.4 GTexel/s
299.5 GTexel/s
FP32 (TFLOPS)
10.60 TFLOPS
19.17 TFLOPS
FP64 (TFLOPS)
662.8 GFLOPS (1:16)
299.5 GFLOPS (1:64)
FP16 (TFLOPS)
21.21 TFLOPS (2:1)
19.17 TFLOPS (1:1)
AI/RT
RT Cores
32
48
+50.0%
Tensor Cores
—
192
Power
TDP
160 W
140 W
TDP (W)
160
140
-12.5%
Suggested PSU
450 W
300 W
Power Connectors
1x 8-pin
1x 6-pin
Architecture
Architecture
RDNA 2.0
Ampere
GPU Name
Navi 23
GA104
Generation
Navi II
(RX 6000)
Workstation Ampere
(Ax000)
Process Size
7 nm
8 nm
Transistors
11,060 million
17,400 million
Die Size
237 mm²
392 mm²
Foundry
TSMC
Samsung
Density
46.7M / mm²
44.4M / 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
—
8.6
Shader Model
6.8
6.8
Physical
Slot Width
Dual-slot
Single-slot
Length
190 mm
7.5 inches
241 mm
9.5 inches
Height
110 mm
4.3 inches
112 mm
4.4 inches
Outputs
1x HDMI 2.13x DisplayPort 1.4a
4x DisplayPort 1.4a
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x16
Other
Launch Price
379 USD
—
Production
End-of-life
End-of-life
Predecessor
Navi
Quadro Turing
Successor
Navi III
Workstation Ada