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
RADEON
Radeon RX 6850M XT
CORE STATE
Navi 22
VRAM
12 GB
CLOCK SPEED
2581 MHz
TDP
165 W
BUS WIDTH
192 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_opencl
3dmark_3dmark_steel_nomad_dx12
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
RX 6850M XT
Core Specs
Shading Units
960
2,560
+166.7%
Shaders
960
2,560
+166.7%
TMUs
48
160
+233.3%
ROPs
32
64
+100.0%
Compute Units
12
40
+233.3%
Clocks
Base Clock
—
2321 MHz
Boost Clock
—
2581 MHz
GPU Clock
800 MHz
—
Game Clock
—
2463 MHz
Memory Clock
1050 MHz
4.2 Gbps effective
2250 MHz
18 Gbps effective
Memory
Memory Size
2 GB
12 GB
VRAM (MB)
2,048
12,288
+500.0%
Memory Type
GDDR5
GDDR6
Memory Bus
256 bit
192 bit
Bandwidth
134.4 GB/s
432.0 GB/s
Cache
L1 Cache
8 KB (per CU)
128 KB per Array
L2 Cache
512 KB
3 MB
L3 Cache
—
96 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
25.60 GPixel/s
165.2 GPixel/s
Texture Rate
38.40 GTexel/s
413.0 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
13.21 TFLOPS
FP64 (TFLOPS)
—
825.9 GFLOPS (1:16)
FP16 (TFLOPS)
—
26.43 TFLOPS (2:1)
AI/RT
RT Cores
—
40
Power
TDP
254 W
165 W
TDP (W)
254
165
-35.0%
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
RDNA 2.0
GPU Name
Barts
Navi 22
Generation
Northern Islands
(HD 6800)
Navi Mobile
(RX 6000M)
Process Size
40 nm
7 nm
Transistors
1,700 million
17,200 million
Die Size
255 mm²
335 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
51.3M / mm²
API Support
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
2.1
Shader Model
5.0
6.8
Physical
Slot Width
Dual-slot
IGP
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
Polaris Mobile
Successor
Southern Islands
—