GPU Comparison
RADEON
AMD Radeon HD 6850 X2
CORE STATE
Barts
VRAM
2 GB
CLOCK SPEED
—
TDP
254 W
BUS WIDTH
256 bit
ARCHITECTURE
TeraScale 2
PROCESS
40 nm
LAUNCH DATE
2011
VS
GEFORCE
A2
CORE STATE
GA107
VRAM
16 GB
CLOCK SPEED
1770 MHz
TDP
60 W
BUS WIDTH
128 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
A2
Core Specs
Shading Units
960
1,280
+33.3%
Shaders
960
1,280
+33.3%
TMUs
48
40
-16.7%
ROPs
32
32
0.0%
Compute Units
12
—
SM Count
—
10
Clocks
Base Clock
—
1440 MHz
Boost Clock
—
1770 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
1563 MHz
12.5 Gbps effective
Memory
Memory Size
2 GB
16 GB
VRAM (MB)
2,048
16,384
+700.0%
Memory Type
GDDR5
GDDR6
Memory Bus
256 bit
128 bit
Bandwidth
134.4 GB/s
200.1 GB/s
Cache
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
25.60 GPixel/s
56.64 GPixel/s
Texture Rate
38.40 GTexel/s
70.80 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
4.531 TFLOPS
FP64 (TFLOPS)
—
70.80 GFLOPS (1:64)
FP16 (TFLOPS)
—
4.531 TFLOPS (1:1)
AI/RT
RT Cores
—
10
Tensor Cores
—
40
Power
TDP
254 W
60 W
TDP (W)
254
60
-76.4%
Suggested PSU
600 W
250 W
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
Ampere
GPU Name
Barts
GA107
Generation
Northern Islands
(HD 6800)
Workstation Ampere
(Ax000)
Process Size
40 nm
8 nm
Transistors
1,700 million
8,700 million
Die Size
255 mm²
200 mm²
Foundry
TSMC
Samsung
Density
6.7M / mm²
43.5M / mm²
API Support
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
3.0
CUDA
—
8.6
Shader Model
5.0
6.8
Physical
Slot Width
Dual-slot
Single-slot
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
No outputs
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
Quadro Turing
Successor
Southern Islands
Workstation Ada