GPU Comparison
RADEON
AMD Radeon R6 M255DX
CORE STATE
Jet
VRAM
System Shared
CLOCK SPEED
855 MHz
TDP
—
BUS WIDTH
System Shared
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
GEFORCE
RTX 4000 SFF Ada Generation
CORE STATE
AD104
VRAM
20 GB
CLOCK SPEED
1560 MHz
TDP
70 W
BUS WIDTH
160 bit
ARCHITECTURE
Ada Lovelace
PROCESS
5 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_vulkan
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
R6 M255DX
RTX 4000 SFF Ada Generation
Core Specs
Shading Units
320
6,144
+1820.0%
Shaders
320
6,144
+1820.0%
TMUs
20
192
+860.0%
ROPs
8
64
+700.0%
Compute Units
5
—
SM Count
—
48
Clocks
Base Clock
780 MHz
720 MHz
Boost Clock
855 MHz
1560 MHz
Memory Clock
System Shared
1750 MHz
14 Gbps effective
Memory
Memory Size
System Shared
20 GB
VRAM (MB)
—
20,480
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
160 bit
Bandwidth
System Dependent
280.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
128 KB
48 MB
Performance
Pixel Rate
6.840 GPixel/s
99.84 GPixel/s
Texture Rate
17.10 GTexel/s
299.5 GTexel/s
FP32 (TFLOPS)
547.2 GFLOPS
19.17 TFLOPS
FP64 (TFLOPS)
34.20 GFLOPS (1:16)
299.5 GFLOPS (1:64)
FP16 (TFLOPS)
—
19.17 TFLOPS (1:1)
AI/RT
RT Cores
—
48
Tensor Cores
—
192
Power
TDP
—
70 W
TDP (W)
—
70
Suggested PSU
—
250 W
Power Connectors
—
None
Architecture
Architecture
GCN 1.0
Ada Lovelace
GPU Name
Jet
AD104
Generation
Gem System Hybrid
(Rx M200)
Workstation Ada
(x000A)
Process Size
28 nm
5 nm
Transistors
690 million
35,800 million
Die Size
56 mm²
294 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
121.8M / 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
—
8.9
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
IGP
Dual-slot
Length
—
168 mm
6.6 inches
Height
—
69 mm
2.7 inches
Outputs
Portable Device Dependent
4x mini-DisplayPort 1.4a
Bus Interface
IGP
PCIe 4.0 x16
Other
Production
End-of-life
Active
Predecessor
—
Workstation Ampere
Successor
—
Blackwell PRO W