Home GPU Comparison ATI Radeon HD 4250 vs AMD Radeon HD 7870 XT

ATI Radeon HD 4250 vs AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4250 and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4250 's Advantages
Lower TDP (25W vs 185W)
AMD Radeon HD 7870 XT 's Advantages
Released 3 years and 9 months late
Boost Clock975MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (192.0GB/s vs 6.336GB/s)
1496 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 4250
0.048 TFLOPS
Radeon HD 7870 XT +6139%
2.995 TFLOPS
VS

Graphics Card

Feb 2009
Release Date
Nov 2012
Radeon R600
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

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

Memory

512MB
Memory Size
2GB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
256bit
6.336GB/s
Bandwidth
192.0GB/s

Render Config

2
Compute Units
24
-
-
-
40
Shading Units
1536
4
TMUs
96
4
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
64 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

2.376 GPixel/s
Pixel Rate
31.20 GPixel/s
2.376 GTexel/s
Texture Rate
93.60 GTexel/s
-
-
-
47.52 GFLOPS
FP32 (float)
2.995 TFLOPS
-
FP64 (double)
748.8 GFLOPS

Board Design

25W
TDP
185W
200 W
Suggested PSU
450 W
1x DVI 1x VGA 1x S-Video
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin

Graphics Processor

RV620
GPU Name
Tahiti
RV620 LE
GPU Variant
Tahiti LE (215-0821122)
TeraScale
Architecture
GCN 1.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.181 billion
Transistors
4.313 billion
67 mm²
Die Size
352 mm²

Graphics Features

10.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
N/A
OpenCL
1.2
N/A
Vulkan
1.2
-
-
-
4.1
Shader Model
5.1

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