Home GPU Comparison AMD Radeon HD 6850 X2 vs AMD Radeon R7 250E

AMD Radeon HD 6850 X2 vs AMD Radeon R7 250E

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 1024MB VRAM Radeon R7 250E to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (134.4GB/s vs 72.00GB/s)
448 additional rendering cores
AMD Radeon R7 250E 's Advantages
Released 2 years and 3 months late
Lower TDP (55W vs 254W)

Score

Benchmark

FP32 (float)
Radeon HD 6850 X2 +87%
1.536 TFLOPS
Radeon R7 250E
0.819 TFLOPS
VS

Graphics Card

Sep 2011
Release Date
Dec 2013
Northern Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1050 MHz
Memory Clock
1125 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
134.4GB/s
Bandwidth
72.00GB/s

Render Config

12
Compute Units
8
-
-
-
960
Shading Units
512
48
TMUs
32
32
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

25.60 GPixel/s
Pixel Rate
12.80 GPixel/s
38.40 GTexel/s
Texture Rate
25.60 GTexel/s
-
-
-
1.536 TFLOPS
FP32 (float)
819.2 GFLOPS
-
FP64 (double)
51.20 GFLOPS

Board Design

254W
TDP
55W
600 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
2x 8-pin
Power Connectors
None

Graphics Processor

Barts
GPU Name
Cape Verde
Barts PRO (215-0798006)
GPU Variant
Cape Verde PRO
TeraScale 2
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.7 billion
Transistors
1.5 billion
255 mm²
Die Size
123 mm²

Graphics Features

11.2 (11_0)
DirectX
12 (11_1)
4.4
OpenGL
4.6
1.2
OpenCL
1.2
N/A
Vulkan
1.2
-
-
-
5.0
Shader Model
5.1

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