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
GeForce GTX 750
CORE STATE
GM107
VRAM
1024 MB
CLOCK SPEED
1085 MHz
TDP
55 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
GTX 750
Core Specs
Shading Units
960
512
-46.7%
Shaders
960
512
-46.7%
TMUs
48
32
-33.3%
ROPs
32
16
-50.0%
Compute Units
12
—
Clocks
Base Clock
—
1020 MHz
Boost Clock
—
1085 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
2 GB
1024 MB
VRAM (MB)
2,048
1,024
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
128 bit
Bandwidth
134.4 GB/s
80.19 GB/s
Cache
L1 Cache
8 KB (per CU)
64 KB (per SMM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
25.60 GPixel/s
17.36 GPixel/s
Texture Rate
38.40 GTexel/s
34.72 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
1,111.0 GFLOPS
FP64 (TFLOPS)
—
34.72 GFLOPS (1:32)
Power
TDP
254 W
55 W
TDP (W)
254
55
-78.3%
Suggested PSU
600 W
250 W
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
Maxwell
GPU Name
Barts
GM107
Generation
Northern Islands
(HD 6800)
GeForce 700
Process Size
40 nm
28 nm
Transistors
1,700 million
1,870 million
Die Size
255 mm²
148 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
12.6M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
3.0
CUDA
—
5.0
Shader Model
5.0
6.7 (5.1)
Physical
Slot Width
Dual-slot
Single-slot
Length
—
145 mm
5.7 inches
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
2x DVI1x mini-HDMI 1.4a
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
—
119 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 600
Successor
Southern Islands
GeForce 900