Home GPU Comparison AMD Radeon R7 250X vs AMD Radeon HD 7870 XT

AMD Radeon R7 250X vs AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 250X 's Advantages
Released 1 years and 3 months late
Lower TDP (80W vs 185W)
AMD Radeon HD 7870 XT 's Advantages
Boost Clock975MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (192.0GB/s vs 72.00GB/s)
896 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R7 250X
1.216 TFLOPS
Radeon HD 7870 XT +146%
2.995 TFLOPS
VS

Graphics Card

Feb 2014
Release Date
Nov 2012
Volcanic Islands
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
925 MHz
-
Boost Clock
975 MHz
1125 MHz
Memory Clock
1500 MHz

Memory

1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
72.00GB/s
Bandwidth
192.0GB/s

Render Config

10
Compute Units
24
-
-
-
640
Shading Units
1536
40
TMUs
96
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

15.20 GPixel/s
Pixel Rate
31.20 GPixel/s
38.00 GTexel/s
Texture Rate
93.60 GTexel/s
-
-
-
1216 GFLOPS
FP32 (float)
2.995 TFLOPS
76.00 GFLOPS
FP64 (double)
748.8 GFLOPS

Board Design

80W
TDP
185W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
1x 6-pin
Power Connectors
2x 6-pin

Graphics Processor

Cape Verde
GPU Name
Tahiti
Cape Verde XT
GPU Variant
Tahiti LE (215-0821122)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.5 billion
Transistors
4.313 billion
123 mm²
Die Size
352 mm²

Graphics Features

12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
5.1
Shader Model
5.1

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