GPU Comparison
RADEON
AMD Radeon R9 255 OEM
CORE STATE
Cape Verde
VRAM
2 GB
CLOCK SPEED
930 MHz
TDP
65 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2013
VS
GEFORCE
GeForce RTX 2080 Max-Q
CORE STATE
TU104
VRAM
8 GB
CLOCK SPEED
1095 MHz
TDP
80 W
BUS WIDTH
256 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2019
DETAILED SPECIFICATIONS
SPECIFICATION
R9 255 OEM
RTX 2080 Max-Q
Core Specs
Shading Units
512
2,944
+475.0%
Shaders
512
2,944
+475.0%
TMUs
32
184
+475.0%
ROPs
16
64
+300.0%
Compute Units
8
—
SM Count
—
46
Clocks
Base Clock
900 MHz
735 MHz
Boost Clock
930 MHz
1095 MHz
Memory Clock
1150 MHz
4.6 Gbps effective
1500 MHz
12 Gbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
256 bit
Bandwidth
73.60 GB/s
384.0 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
256 KB
4 MB
Performance
Pixel Rate
14.88 GPixel/s
70.08 GPixel/s
Texture Rate
29.76 GTexel/s
201.5 GTexel/s
FP32 (TFLOPS)
952.3 GFLOPS
6.447 TFLOPS
FP64 (TFLOPS)
59.52 GFLOPS (1:16)
201.5 GFLOPS (1:32)
FP16 (TFLOPS)
—
12.89 TFLOPS (2:1)
AI/RT
RT Cores
—
46
Tensor Cores
—
368
Power
TDP
65 W
80 W
TDP (W)
65
80
+23.1%
Suggested PSU
250 W
—
Power Connectors
1x 6-pin
None
Architecture
Architecture
GCN 1.0
Turing
GPU Name
Cape Verde
TU104
Generation
Volcanic Islands
(R9 200)
GeForce 20 Mobile
Process Size
28 nm
12 nm
Transistors
1,500 million
13,600 million
Die Size
123 mm²
545 mm²
Foundry
TSMC
TSMC
Density
12.2M / mm²
25.0M / mm²
API Support
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
3.0
CUDA
—
7.5
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
MXM Module
Outputs
No outputs
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Sea Islands
GeForce 10 Mobile
Successor
Pirate Islands
GeForce 30 Mobile